US20030082172A1 - Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma - Google Patents
Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma Download PDFInfo
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- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
- C07K16/2887—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against CD20
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- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
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- A61K47/6835—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
- A61K47/6849—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a receptor, a cell surface antigen or a cell surface determinant
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K2039/505—Medicinal preparations containing antigens or antibodies comprising antibodies
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- C07K2317/73—Inducing cell death, e.g. apoptosis, necrosis or inhibition of cell proliferation
- C07K2317/732—Antibody-dependent cellular cytotoxicity [ADCC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S424/00—Drug, bio-affecting and body treating compositions
- Y10S424/80—Antibody or fragment thereof whose amino acid sequence is disclosed in whole or in part
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S424/00—Drug, bio-affecting and body treating compositions
- Y10S424/801—Drug, bio-affecting and body treating compositions involving antibody or fragment thereof produced by recombinant dna technology
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
- Y10S530/867—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof involving immunoglobulin or antibody produced via recombinant dna technology
Definitions
- the present invention is directed to the treatment of B cell lymphoma using chimeric and radiolabeled antibodies to the B cell surface antigen Bp35 (“CD 20”).
- the immune system of vertebrates (for example, primates, which include humans, apes, monkeys, etc.) consists of a number of organs and cell types which have evolved to: accurately and specifically recognize foreign microorganisms (“antigen”) which invade the vertebrate-host; specifically bind to such foreign microorganisms; and, eliminate/destroy such foreign microorganisms.
- Lymphocytes amongst others, are critical to the immune system. Lymphocytes are produced in the thymus, spleen and bone marrow (adult) and represent about 30% of the total white blood cells present in the circulatory system of humans (adult). There are two major sub-populations of lymphocytes: T cells and B cells.
- T cells are responsible for cell mediated immunity, while B cells are responsible for antibody production (humoral immunity).
- T cells and B cells can be considered as interdependent—in a typical immune response, T cells are activated when the T cell receptor binds to fragments of an antigen that are bound to major histocompatability complex (“MHC”) glycoproteins on the surface of an antigen presenting cell; such activation causes release of biological mediators (“interleukins”) which, in essence, stimulate B cells to differentiate and produce antibody (“immunoglobulins”) against the antigen.
- MHC major histocompatability complex
- Each B call within the host expresses a different antibody on its surface—thus, one B cell will express antibody specific for one antigen, while another B cell will express antibody specific for a different antigen. Accordingly, B cells are quite diverse, and this diversity is critical to the immune system. In humans, each B cell can produce an enormous number of antibody molecules (ie about 10 7 to 10 8 ). Such antibody production most typically ceases (or substantially decreases) when the foreign antigen has been neutralized. Occasionally, however, proliferation of a particular B cell will continue unabated; such proliferation can result in a cancer referred to as “B cell lymphoma.”
- T cells and B cells both comprise cell surface proteins which can be utilized as “markers” for differentiation and identification.
- One such human B cell marker is the human B lymphocyte-restricted differentiation antigen Bp35, referred to as “CD20.”
- CD20 is expressed during early pre-B cell development and remains until plasma cell differentiation. Specifically, the CD20 molecule may regulate a step in the activation process which is required for cell cycle initiation and differentiation and is usually expressed at very high levels on neoplastic (“tumor”) B cells.
- CD20 by definition, is present on both “normal” B cells as well as “malignant” B cells, ie those B cells whose unabated proliferation can lead to B cell lymphoma.
- the CD20 surface antigen has the potential of serving as a candidate for “targeting” of B cell lymphomas.
- such targeting can be generalized as follows: antibodies specific to the CD20 surface antigen of B cells are, eg injected into a patient. These anti-CD20 antibodies specifically bind to the CD20 cell surface antigen of (ostensibly) both normal and malignant B cells; the anti-CD20 antibody bound to the CD20 surface antigen may lead to the destruction and depletion of neoplastic B cells. Additionally, chemical agents or radioactive labels having the potential to destroy the tumor can be conjugated to the anti-CD20 antibody such that the agent is specifically “delivered” to, e.g., the neoplastic B cells. Irrespective of the approach, a primary goal is to destroy the tumor: the specific approach can be determined by the particular anti-CD20 antibody which is utilized and, thus, the available approaches to targeting the CD20 antigen can vary considerably.
- Murine (mouse) monoclonal antibody 1F5 an anti-CD20 antibody
- 1F5 an anti-CD20 antibody
- Extremely high levels (>2 grams) of 1F5 were reportedly required to deplete circulating tumor cells, and the results were described as being “transient.” Press et al., “Monoclonal Antibody 1F5 (Anti-CD20) Serotherapy of Human B-Cell Lymphomas.” Blood 69/2:584-591 (1987).
- non-human monoclonal antibodies typically lack human effector functionality, ie they are unable to, inter alia, mediate complement dependent lysis or lyse human target cells through antibody dependent cellular toxicity or Fc-receptor mediated phagocytosis.
- non-human monoclonal antibodies can be recognized by the human host as a foreign protein; therefore, repeated injections of such foreign antibodies can lead to the induction of immune responses leading to harmful hypersensitivity reactions.
- HAMA Human Anti-Mouse Antibody response
- these “foreign” antibodies can be attacked by the immune system of the host such that they are, in effect, neutralized before they reach their target site.
- Lymphocytes and lymphoma cells are inherently sensitive to radiotherapy for several reasons: the local emission of ionizing radiation of radiolabeled antibodies may kill cells with or without the target antigen (eg, CD20) in close proximity to antibody bound to the antigen; penetrating radiation may obviate the problem of limited access to the antibody in bulky or poorly vascularized tumors; and, the total amount of antibody required may be reduced.
- the radionuclide emits radioactive particles which can damage cellular DNA to the point where the cellular repair mechanisms are unable to allow the cell to continue living; therefore, if the target cells are tumors, the radioactive label beneficially kills the tumor cells.
- Radiolabeled antibodies include the use of a radioactive substance which may require the need for precautions for both the patient (ie possible bone marrow transplantation) as well as the health care provider (ie the need to exercise a high degree of caution when working with the radioactivity).
- an approach at improving the ability of murine monoclonal antibodies to be effective in the treatment of B-cell disorders has been to conjugate a radioactive label or toxin to the antibody such that the label or toxin is localized at the tumor site.
- the above-referenced IF5 antibody has been “labeled” with iodine-131 (“ 131 I”) and was reportedly evaluated for biodistribution in two patients. See Eary, J. F. et al., “Imaging and Treatment of B-Cell Lymphoma” J. Nuc. Med. 31/8:1257-1268 (1990); see also, Press, O. W.
- Toxins ie chemotherapeutic agents such as doxorubicin or mitomycin C have also been conjugated to antibodies. See, for example, PCT published application WO 92/07466 (published May 14, 1992).
- “Chimeric” antibodies ie antibodies which comprise portions from two or more different species (eg, mouse and human) have been developed as an alternative to “conjugated” antibodies.
- Liu, A. Y. et al. “Production of a Mouse-Human Chimeric Monoclonal Antibody to CD20 with Potent Fc-Dependent Biologic Activity” J. Immun. 139/10:3521-3526 (1987), describes a mouse/human chimeric antibody directed against the CD20 antigen. See also, PCT Publication No. WO 88/04936.
- no information is provided as to the ability, efficacy or practicality of using such chimeric antibodies for the treatment of B cell disorders in the reference.
- B cell lymphomas Disclosed herein are therapeutic methods designed for the treatment of B cell disorders, and in particular, B cell lymphomas. These protocols are based upon the administration of immunologically active chimeric anti-CD20 antibodies for the depletion of peripheral blood B cells, including B cells associated with lymphoma; administration of radiolabeled anti-CD20 antibodies for targeting localized and peripheral B cell associated tumors; and administration of chimeric anti-CD20 antibodies and radiolabeled anti-CD20 antibodies in a cooperative therapeutic strategy.
- FIG. 1 is a diagrammatic representation of a tandem chimeric antibody expression vector useful in the production of immunologically active chimeric anti-CD20 antibodies (“TCAE 8”);
- FIGS. 2A through 2E are the nucleic acid sequence of the vector of FIG. 1;
- FIGS. 3A through 3F are the nucleic acid sequence of the vector of FIG. 1 further comprising murine light and heavy chain variable regions (“anti-CD20 in TCAE 8”);
- FIG. 4 is the nucleic acid and amino acid sequences (including CDR and framework regions) of murine variable region light chain derived from murine anti-CD20 monoclonal antibody 2B8;
- FIG. 5 is the nucleic acid and amino acid sequences (including CDR and framework regions) of murine variable region heavy chain derived from murine anti-CD20 monoclonal antibody 2B8;
- FIG. 6 are flow cytometry results evidencing binding of fluorescent-labeled human C1q to chimeric anti-CD20 antibody, including, as controls labeled C1q; labeled C1q and murine anti-CD20 monoclonal antibody 2B8; and labeled C1q and human IgGl,k;
- FIG. 7 represents the results of complement related lysis comparing chimeric anti-CD20 antibody and murine anti-CD20 monoclonal antibody 2B8;
- FIG. 8 represents the results of antibody mediated cellular cytotoxicity with in vivo human effector cells comparing chimeric anti-CD20 antibody and 2B8;
- FIGS. 9A, 9B and 9 C provide the results of non-human primate peripheral blood B lymphocyte depletion after infusion of 0.4 mg/kg (A); 1.6 mg/kg (B); and 6.4 mg/kg (C) of immunologically active chimeric anti-CD20 antibody;
- FIG. 10 provides the results of, inter alia, non-human primate peripheral blood B lymphocyte depletion after infusion of 0.01 mg/kg of immunologically active chimeric anti-CD20 antibody;
- FIG. 11 provides results of the tumoricidal impact of Y2B8 in a mouse xenographic model utilizing a B cell lymphoblastic tumor
- FIG. 12 provides results of the tumoricidal impact of C2B8 in a mouse xenographic model utilizing a B cell lymphoblastic tumor
- FIG. 13 provides results of the tumoricidal impact of a combination of Y2B8 and C2B8 in a mouse xenographic model utilizing a B cell lymphoblastic tumor
- FIGS. 14A and 14B provide results from a Phase I/II clinical analysis of C2B8 evidencing B-cell population depletion over time for patients evidencing a partial remission of the disease ( 14 A) and a minor remission of the disease ( 14 B).
- antibodies are composed of two light chains and two heavy chain molecules; these chains form a general “Y” shape, with both light and heavy chains forming the arms of the Y and the heavy chains forming the base of the Y.
- Light and heavy chains are divided into domains of structural and functional homology.
- the variable domains of both the light (“V L ”) and the heavy (“V H ”) chains determine recognition and specificity.
- the constant region domains of light (“C L ”) and heavy (“C H ”) chains confer important biological properties, eg antibody chain association, secretion, transplacental mobility, Fc receptor binding complement binding, etc.
- the series of events leading to immunoglobulin gene expression in the antibody producing cells are complex.
- variable domain region gene sequences are located in separate germ line gene segments referred to as “V H ,” “D,” and “J H ,” or “V L ” and “J L .” These gene segments are joined by DNA rearrangements to form the complete V regions expressed in heavy and light chains, respectively. The rearranged, joined V segments (V L -J L and V H -D-J H ) then encode the complete variable regions or antigen binding domains of light and heavy chains, respectively.
- anti-CD20 antibody is an antibody which specifically recognizes a cell surface non-glycosylated phosphoprotein of 35,000 Daltons, typically designated as the human B lymphocyte restricted differentiation antigen Bp35, commonly referred to as CD20.
- the term “chimeric” when used in reference to anti-CD20 antibodies encompasses antibodies which are most preferably derived using recombinant deoxyribonucleic acid techniques and which comprise both human (including immunologically “related” species, eg, chimpanzee) and non-human components: the constant region of the chimeric antibody is most preferably substantially identical to the constant region of a natural human antibody; the variable region of the chimeric antibody is most preferably derived from a non-human source and has the desired antigenic and specificity to the CD20 cell surface antigen.
- the non-human source can be any vertebrate source which can be used to generate antibodies to a human CD20 cell surface antigen or material comprising a human CD20 cell surface antigen.
- non-human source includes, but is not limited to, rodents (eg, rabbit, rat, mouse, etc.) and non-human primates (eg, Old World Monkey, Ape, etc.).
- rodents eg, rabbit, rat, mouse, etc.
- non-human primates eg, Old World Monkey, Ape, etc.
- the non-human component is derived from a murine source.
- the phrase “immunologically active” when used in reference to chimeric anti-CD20 antibodies means a chimeric antibody which binds human C1q, mediates complement dependent lysis (“CDC”) of human B lymphoid cell lines, and lyses human target cells through antibody dependent cellular cytotoxicity (“ADCC”).
- CDC mediates complement dependent lysis
- ADCC antibody dependent cellular cytotoxicity
- the phrases “indirect labeling” and “indirect labeling approach” both mean that a chelating agent is covalently attached to an antibody and at least one radionuclide is inserted into the chelating agent.
- Preferred chelating agents and radionuclides are set forth in Srivagtava, S. C. and Mease, R. C.,“Progress in Research on Ligands, Nuclides and Techniques for Labeling Monoclonal Antibodies,” Nucl. Med. Bio. 18/6: 589-603 (1991) (“Srivagtava”) which is incorporated herein by reference.
- a particularly preferred chelating agent is 1-isothiocycmatobenzyl-3-methyldiothelene triaminepent acetic acid (“MX-DTPA”); particularly preferred radionuclides for indirect labeling include indium [111] and yttrium [90].
- MX-DTPA 1-isothiocycmatobenzyl-3-methyldiothelene triaminepent acetic acid
- radionuclides for indirect labeling include indium [111] and yttrium [90].
- the phrases “direct labeling” and “direct labeling approach” both mean that a radionuclide is covalently attached directly to an antibody (typically via an amino acid residue).
- Preferred radionuclides are provided in Srivagtava; a particularly preferred radionuclide for direct labeling is iodine [131] covalently attached via tyrosine residues.
- the indirect labeling approach is particularly preferred.
- the therapeutic approaches disclosed herein are based upon the ability of the immune system of primates to rapidly recover, or rejuvenate, peripheral blood B cells. Additionally, because the principal immune response of primates is occasioned by T cells, when the immune system has a peripheral blood B cell deficiency, the need for “extraordinary” precautions (ie patient isolation, etc.) is not necessary. As a result of these and other nuances of the immune systems of primates, our therapeutic approach to B cell disorders allows for the purging of peripheral blood B cells using immunologically active chimeric anti-CD20 antibodies.
- the route of administration of the immunologically active chimeric anti-CD20 antibodies and radioalabeled anti-CD20 antibodies is preferably parenteral; as used herein, the term “parenteral” includes intravenous, intramuscular, subcutaneous, rectal, vaginal or intraperitoneal administration. Of these, intravenous administration is most preferred.
- the immunologically active chimeric anti-CD20 antibodies and radiolabeled anti-CD20 antibodies will typically be provided by standard technique within a pharmaceutically acceptable buffer, for example, sterile saline, sterile buffered water, propylene glycol, combinations of the foregoing, etc.
- a pharmaceutically acceptable buffer for example, sterile saline, sterile buffered water, propylene glycol, combinations of the foregoing, etc.
- Methods for preparing parenteraly administerable agents are described in Pharmaceutical Carriers & Formulations, Martin, Remington's Pharmaceutical Sciences, 15th Ed. (Mack Pub. Co., Easton, Pa. 1975), which is incorporated herein by reference.
- the specific, therapeutically effective amount of immunologically active chimeric anti-CD20 antibodies useful to produce a unique therapeutic effect in any given patient can be determined by standard techniques well known to those of ordinary skill in the art.
- Effective dosages ie therapeutically effective amounts of the immunologically active chimeric anti-CD20 antibodies range from about 0.001 to about 30 mg/kg body weight, more preferably from about 0.01 to about 25 mg/kg body weight, and most preferably from about 0.4 to about 20.0 mg/kg body weight.
- Other dosages are viable; factors influencing dosage include, but are not limited to, the severity of the disease; previous treatment approaches; overall health of the patient; other diseases present, etc. The skilled artisan is readily credited with assessing a particular patient and determining a suitable dosage that falls within the ranges, or if necessary, outside of the ranges.
- Introduction of the immunologically active chimeric anti-CD20 antibodies in these dose ranges can be carried out as a single treatment or over a series of treatments. With respect to chimeric antibodies, it is preferred that such introduction be carried out over a series of treatments; this preferred approach is predicated upon the treatment methodology associated with this disease. While not wishing to be bound by any particular theory, because the immunologically active chimeric anti-CD20 antibodies are both immunologically active and bind to CD20, upon initial introduction of the immunologically active chimeric anti-CD20 antibodies to the individual, peripheral blood B cell depletion will begin; we have observed a nearly complete depletion within about 24 hours post treatment infusion.
- the first “event” then, can be viewed as principally directed to substantially depleting the patient's peripheral blood B cells; the subsequent “events” can be viewed as either principally directed to simultaneously or serially clearing remaining B cells from the system clearing lymph node B cells, or clearing other tissue B cells.
- a preferred treatment course can occur over several stages; most preferably, between about 0.4 and about 20 mg/kg body weight of the immunologically active chimeric anti-CD20 antibodies is introduced to the patient once a week for between about 2 to 10 weeks, most preferably for about 4 weeks.
- radiolabeled anti-CD20 antibodies With reference to the use of radiolabeled anti-CD20 antibodies, a preference is that the antibody is non-chimeric; this preference is predicted upon the significantly longer circulating half-life of chimeric antibodies vis-a-vis murine antibodies (ie with a longer circulating half-life, the radionuclide is present in the patient for extended periods).
- radiolabeled chimeric antibodies can be beneficially utilized with lower milli-Curries (“mCi”) dosages used in conjunction with the chimeric antibody relative to the murine antibody. This scenario allows for a decrease in bone marrow toxicity to an acceptable level, while maintaining therapeutic utility.
- mCi milli-Curries
- iodine [131] is a well known radionuclide used for targeted immunotherapy.
- the clinical usefulness of iodine [131] can be limited by several factors including: eight-day physical half-life; dehalogenation of iodinated antibody both in the blood and at tumor sites; and emission characteristics (eg large gamma component) which can be suboptimal for localized dose deposition in tumor.
- Yttrium [90] provides several benefits for utilization in radioimmunotherapeutic applications: the 64 hour half-life of yttrium [90] is long enough to allow antibody accumulation by tumor and, unlike eg iodine [131], yttrium [90] is a pure beta emitter of high energy with no accompanying gamma irradiation in its decay, with a range in tissue of 100 to 1000 cell diameters. Furthermore, the minimal amount of penetrating radiation allows for outpatient administration of yttrium [90]-labeled antibodies. Furthermore, interalization of labeled antibody is not required for cell killing, and the local emission of ionizing radiation should be lethal for adjacent tumor cells lacking the target antigen.
- a diagnostic “imaging” radionuclide such as indium [111] can be utilized for determining the location and relative size of a tumor prior to the administration of therapeutic does of yttrium [90]-labeled anti-CD20.
- Indium [111] is particularly preferred as the diagnostic radionuclide because: between about 1 to about 10 mCi can be safely administered without detectable toxicity; and the imaging data is generally predictive of subsequent yttrium [90]-labeled antibody distribution.
- Effective single treatment dosages ie therapeutically effective amounts of yttrium [90] labeled anti-CD20 antibodies range from between about 5 and about 75 mCi, more preferably between about 10 and about 40 mCi.
- Effective single treatment non-marrow ablative dosages of iodine [131] labeled anti-CD20 antibodies range from between about 5 and about 70 mCi, more preferably between about 5 and about 40 mCi.
- Effective single treatment ablative dosages ie may require autologous bone marrow transplantation) of iodine [131] labeled anti-CD20 antibodies range from between about 30 and about 600 mCi, more preferably between about 50 and less than about 500 mCi.
- an effective single treatment non-marrow ablative dosages of iodine [131] labeled chimeric anti-CD20 antibodies range from between about 5 and about 40 mCi, more preferably less than about 30 mCi. Imaging criteria for, eg the indium [111] label, are typically less than about 5 mCi.
- radiolabeled anti-CD20 antibodies therapy therewith can also occur using a single therapy treatment or using multiple treatments. Because of the radionuclide component, it is preferred that prior to treatment, peripheral stem cells (“PSC”) or bone marrow (“BM”) be “harvested” for patients experiencing potentially fatal bone marrow toxicity resulting from radiation. BM and/or PSC are harvested using standard techniques, and then purged and frozen for possible reinfusion.
- PSC peripheral stem cells
- BM bone marrow
- a diagnostic dosimetry study using a diagnostic labeled antibody be conducted on the patient, a purpose of which is to ensure that the therapeutically labeled antibody (eg using yttrium [90]) will not become unnecessarily “concentrated” in any normal organ or tissue.
- the light and heavy chains can be expressed separately, using, for example, immunoglobulin light chain and immunoglobulin heavy chains in separate plasmids. These can then be purified and assembled in vitro into complete antibodies; methodologies for accomplishing such assembly have been described. See, for example, Scharff, M., Harvey Lectures 69:125 (1974). In vitro reaction parameters for the formation of IgG antibodies from reduced isolated light and heavy chains have also been described. See, for example, Beychok, S., Cells of Immunoglobulin Synthesis, Academic Press, New York, p. 69, 1979. Co-expression of light and heavy chains in the same cells to achieve intracellular association and linkage of heavy and light chains into complete H 2 L 2 IgG antibodies is also possible. Such co-expression can be accomplished using either the same or different plasmids in the same host cell.
- Another approach and one which is our most preferred approach for developing a chimeric non-human/human anti-CD20 antibody, is based upon utilization of an expression vector which includes, ab initio, DNA encoding heavy and light chain constant regions from a human source.
- a vector allows for inserting DNA encoding non-human variable region such that a variety of non-human anti-CD20 antibodies can be generated, screened and analyzed for various characteristics (eg type of binding specificity, epitope binding regions, etc.); thereafter, cDNA encoding the light and heavy chain variable regions from a preferred or desired anti-CD20 antibody can be incorporated into the vector.
- TCAE Tandem Chimeric Antibody Expression
- TCAE 8 is a derivative of a vector owned by the assignee of this patent document, referred to as TCAE 5.2 the difference being that in TCAE 5.2, the translation initiation start site of the dominant selectable marker (neomycin phosphostransferase, “NEO”) is a consensus Kozak sequence, while for TCAE 8, this region is a partially impaired consensus Kozak sequence.
- the initiation start site of the dominant selectable marker of the TCAE vectors also referred to as “ANEX vector” vis-a-vis protein expression are disclosed in detail in the co-pending application filed herewith.
- TCAE 8 comprises four (4) transcriptional cassettes, and these are in tandem order, ie a human immunoglobulin light chain absent a variable region; a human immunoglobulin heavy chain absent a variable region; DHFR; and NEO.
- Each transcriptional cassette contains its own eukaryotic promoter and polyadenylation region (reference is made to FIG. 1 which is a diagrammatic representation of the TCAE 8 vector). Specifically:
- the CMV promoter/enhancer in front of the immunoglobulin heavy chain is a truncated version of the promoter/enhancer in front of the light chain, from the Nhe I site at ⁇ 350 to the Sst I site at ⁇ 16 (see, 41 Cell 521, 1985).
- a human immunoglobulin light chain constant region was derived via amplification of cDNA by a PCR reaction.
- the light chain was isolated from normal human blood (IDEC Pharmaceuticals Corporation, La Jolla, Calif.); RNA therefrom was used to synthesize cDNA which was then amplified using PCR techniques (primers were derived vis-a-vis the consensus from Kabat).
- the heavy chain was isolated (using PCR techniques) from cDNA prepared from RNA which was in turn derived from cells transfected with a human IgG1 vector (see, 3 Prot. Eng. 531, 1990; vector pN ⁇ 1 62).
- amino acids 225 was changed from valine to alanine (GTT to GCA), and amino acid 287 was changed from methionine to lysine (ATG to AAG);
- the human immunoglobulin light and heavy chain cassettes contain synthetic signal sequences for secretion of the immunoglobulin chains;
- the human immunoglobulin light and heavy chain cassettes contain specific DNA restriction sites which allow for insertion of light and heavy immunoglobulin variable regions which maintain the transitional reading frame and do not alter the amino acids normally found in immunoglobulin chains;
- the DHFR cassette contained its own eukaryotic promoter (mouse beta globin major promoter, “BETA”) and polyadenylation region (bovine growth hormone polyadenylation, “BGH”); and
- the NEO cassette contained its own eukaryotic promoter (BETA) and polyadenylation region (SV40 early polyadenylation, “SV”).
- BETA eukaryotic promoter
- the Kozak region was a partially impaired consensus Kozak sequence (which included an upstream Cla I site): ClaI ⁇ 3 +1 GGGAGCTTGG ATCCAT ccTct ATG Gtt
- the TCAE vectors beneficially allow for substantially reducing the time in generating the immunologically active chimeric anti-CD20 antibodies.
- the sequence of the variable region of a non-human anti-CD20 antibody can be obtained, followed by oligonucleotide synthesis of portions of the sequence or, if appropriate, the entire sequence; thereafter, the portions or the entire synthetic sequence can be inserted into the appropriate locations within the vector.
- TCAE 8 or an equivalent vector
- the host cell line utilized for protein expression is most preferably of mammalian origin; those skilled in the art are credited with ability to preferentially determine particular host cell lines which are best suited for the desired gene product to be expressed therein.
- Exemplary host cell lines include, but are not limited to, DG44 and DUXBll (Chinese Hamster Ovary lines, DHFR minus), HELA (human cervical carcinoma), CVI (monkey kidney line), COS (a derivative of CVI with SV40 T antigen), R1610 (Chinese hamster fibroblast) BALBC/3T3 (mouse fibroblast), HAK (hamster kidney line), SP2/O (mouse myeloma), P3 ⁇ 63-Ag3.653 (mouse myeloma), BFA-lclBPT (bovine endothelial cells), RAJI (human lymphocyte) and 293 (human kidney). Host cell lines are typically available from commercial services, the American Tissue Culture Collection or from published literature
- the host cell line is either DG44 (“CHO”) or SP2/O. See Urland, G. et al., “Effect of gamma rays and the dihydrofolate reductase locus: deletions and inversions.” Som. Cell & Mol. Gen. 12/6:555-566 (1986), and Shulman, M. et al., “A better cell line for making hybridomas secreting specific antibodies.” Nature 276:269 (1978), respectively. Most preferably, the host cell line is DG44. Transfection of the plasmid into the host cell can be accomplished by any technique available to those in the art.
- transfection including electrophoresis and electroporation
- cell fusion with enveloped DNA
- microinjection and infection with intact virus.
- transfection including electrophoresis and electroporation
- cell fusion with enveloped DNA
- microinjection and infection with intact virus.
- plasmid introduction into the host is via electroporation.
- mice were repeatedly immunized with the human lymphoblastoid cell line SB (see, Adams, R. A. et al., “Direct implantation and serial transplantation of human acute lymphoblastic leukemia in hamsters, SB-2.” Can Res 28:1121-1125 (1968); this cell line is available from the American Tissue Culture Collection, Rockville, Md., under ATCC accession number ATCC CCL 120), with weekly injections over a period of 3-4 months.
- Mice evidencing high serum titers of anti-CD20 antibodies, as determined by inhibition of known CD20-specific antibodies (anti-CD20 antibodies utilized were Leu 16, Beckton Dickinson, San Jose, Calif., Cat. No.
- Assays for CD20 specificity were accomplished by radioimmunoassay. Briefly, purified anti-CD20 Bl was radiolabeled with I 125 by the iodobead method as described in Valentine, M. A. et al., (1989) J. Biol. Chem. 264:11282. (I 125 Sodium Iodide, ICN, Irvine, Calif., Cat. No. 28665H).
- Hybridomas were screened by co-incubation of 0.05 ml of media from each of the fusion wells together with 0.05 ml of I 125 labeled anti-CD20 Bl (10 ng) in 1% BSA, PBS (pH 7.4), and 0.5 ml of the same buffer containing 100,000 SB cells. After incubation for 1 hr at room temperature, the cells were harvested by transferring to 96 well titer plates (V&P Scientific, San Diego, Calif.), and washed thoroughly. Duplicate wells containing unlabeled anti-CD20 Bl and wells containing no inhibiting antibody were used as positive and negative controls, respectively. Wells containing greater than 50% inhibition were expanded and cloned. The antibody demonstrating the highest inhibition was derived from the cloned cell line designated herein as “2B8.”
- Carbon-14-labeled 1-isothiocyanatobenzyl-3-methyldiethylene triaminepentaacetic acid (“carbon-14 labeled MX-DTPA”) was used as a chelating agent for conjugation of radiolabel to 2B8.
- Manipulations of MX-DTPA were conducted to maintain metal-free conditions, ie metal-free reagents were utilized and, when possible, polypropylene plastic containers (flasks, beakers, graduated cylinders, pipette tips) washed with Alconox and rinsed with Milli-Q water, were similarly utilized.
- MX-DTPA was obtained as a dry solid from Dr.
- Purified 2B8 was prepared for conjugation with MX-DTPA by transferring the antibody into metal-free 50 mM bicine-NaOff, pH 8.6, containing 150 mM NaCl, using repetitive buffer exchange with CENTRICON 30TM spin filters (30,000D, MWCO; Amicon). Generally, 50-200 ⁇ L of protein (10 mg/nl) was added to the filter unit, followed by 2 mL of bicine buffer. The filter was centrifuged at 4° C. in a Sorval SS-34 rotor (6,000 rpm, 45 min.). Retentate volume was approximately 50-100 ⁇ L; this process was repeated twice using the same filter.
- Retentate was transferred to a polypropylene 1.5 mL screw cap tube, assayed for protein, diluted to 10.0 mg/mL and stored at 4° C. until utilized; protein was similarly transferred into 50 mM sodium citrate, pH 5.5, containing 150 mM NaCl and 0.05% sodium azide, using the foregoing protocol.
- Conjugation of 2B8 with MX-DTPA was performed in polypropylene tubes at ambient temperature. Frozen MX-DTPA stock solutions were thawed immediately prior to use. 50-200 mL of protein at 10 mg/mL were reacted with MX-DTPA at a molar ratio of MX-DTPA-to-2B8 of 4:1. Reactions were initiated by adding the MX-DTPA stock solution and gently mixing; the conjugation was allowed to proceed overnight (14 to 20 hr), at ambient temperature.
- Unreacted MX-DTPA was removed from the conjugate by dialysis or repetitive ultrafiltration, as described above in Example I.B.ii, into metal-free normal saline (0.9% w/v) containing 0.05% sodium azide.
- the protein concentration was adjusted to 10 mg/mL and stored at 4° C. in a polypropylene tube until radiolabeled.
- MX-DTPA incorporation was determined by scintillation counting and comparing the value obtained with the purified conjugate to the specific activity of the carbon-[14]-labeled MX-DTPA.
- MX-DTPA incorporation was assessed by incubating the conjugate with an excess of a radioactive carrier solution of yttrium-[90] of known concentration and specific activity.
- a stock solution of yttrium chloride of known concentration was prepared in metal-free 0.05 N HCl to which carrier-free yttrium-[90] (chloride salt) was added. An aliquot of this solution was analyzed by liquid scintillation counting to determine an accurate specific activity for this reagent.
- a volume of the yttrium chloride reagent equal to 3-times the number of mols of chelate expected to be attached to the antibody, (typically 2 mol/mol antibody), was added to a polypropylene tube, and the pH adjusted to 4.0-4.5 with 2 M sodium acetate. Conjugated antibody was subsequently added and the mixture incubated 15-30 min. at ambient temperature. The reaction was quenched by adding 20 mM EDTA to a final concentration of 1 mM and the pH of the solution adjusted to approximately pH 6 with 2M sodium acetate.
- Samples for assay were diluted in 1 ⁇ PBS/1% BSA, applied to plates and serially diluted (1:2) into the same buffer. After incubating plates for 1 h. at ambient temperature, the plates were washed three times with 1 ⁇ PBS. Secondary antibody (goat anti-mouse IgG1-specific HRP conjugate 50 ⁇ L) was added to wells (1:1500 dilution in 1 ⁇ PBS/1% BSA) and incubated 1 h. at ambient temperature. Plates were washed four times with 1 ⁇ PBS followed by the addition of ABTS substrate solution (50 mM sodium citrate, pH 4.5 containing 0.01% ATBS and 0.001% H 2 O 2 ). Plates were read at 405 nm after 15-30 min.
- ABTS substrate solution 50 mM sodium citrate, pH 4.5 containing 0.01% ATBS and 0.001% H 2 O 2 .
- Conjugates were radiolabeled with carrier-free indium-[111]. An aliquot of isotope (0.1-2 mCi/mg antibody) in 0.05 M HCL was transferred to a polypropylene tube and approximately one-tenth volume of metal-free 2 M HCl added. After incubation for 5 min., metal-free 2 M sodium acetate was added to adjust the solution to pH 4.0-4.4. Approximately 0.5 mg of 2B8-MX-DTPA was added from a stock solution of 10.0 mg/mL DTPA in normal saline, or 50 mM sodium citrate/150 mM NaCl containing 0.05% sodium azide, and the solution gently mixed immediately.
- the pH solution was checked with pH paper to verify a value of 4.0-4.5 and the mixture incubated at ambient temperature for 15-30 min. Subsequently, the reaction was quenched by adding 20 mM EDTA to a final concentration of 1 mM and the reaction mixture was adjusted to approximately pH 6.0 using 2 M sodium acetate.
- the HPLC unit consisted of Waters Model 6000 or TosoHaas Model TSK-6110 solvent delivery system fitted, respectively, with a Waters U6K or Rheodyne 700 injection valve. Chromatographic separations were performed using a gel permeation column (BioRad SEC-250; 7.5 ⁇ 300 mm or comparable TosoHaas column) and a SEC-250 guard column (7.5 ⁇ 100 mm). The system was equipped with a fraction collector (Pharmacia Frac200) and a UV monitor fitted with a 280 nm filter (Pharmacia model TV-1).
- the radioincorporation was calculated by summing the radioactivity associated with the eluted protein peak and dividing this number by the total radioactivity eluted from the column; this value was then expressed as a percentage (data not shown). In some cases, the radioincorporation was determined using instant thin-layer chromatography (“ITLC”). Radiolabeled conjugate was diluted 1:10 or 1:20 in 1 ⁇ PBS containing or 1 ⁇ PBS/1 mM DTPA, then 1 ⁇ L was spotted 1.5 cm from one end of a 1 ⁇ 5 cm strip of ITLC SG paper. The paper was developed by ascending chromatography using 10% ammonium acetate in methanol:water (1:1;v/v).
- ITLC instant thin-layer chromatography
- the strip was dried, cut in half crosswise, and the radioactivity associated with each section determined by gamma counting.
- the radioactivity associated with the bottom half of the strip was expressed as a percentage of the total radioactivity, determined by summing the values for both top and bottom halves (data not shown).
- 2B8-MX-DTPA was radiolabeled with indium [111] following a protocol similar to the one described above but without purification by HPLC; this was referred to as the “mix-and-shoot” protocol.
- I2B8 was evaluated for tissue biodistribution in six-to-eight week old BALB/c mice.
- the radiolabeled conjugate was prepared using clinical-grade 2B8-MX-DTPA following the “mix and shoot” protocol described above.
- the specific activity of the conjugate was 2.3 mCi/mg and the conjugate was formulated in PBS, pH 7.4 containing 50mg/mL HSA.
- Mice were injected intravenously with 100 ⁇ L of I2B8 (approximately 21 ⁇ Ci) and groups of three mice were sacrificed by cervical dislocation at 0, 24, 48, and 72 hours.
- 2B8-MX-DTPA was radiolabeled with indium-[111] to a specific activity of 2.3 mCi/mg and approximately 1.1 ⁇ Ci was injected into each of 20 BALB/c mice. Subsequently, groups of five mice each were sacrificed at 1, 24, 48 and 72 hours and their organs removed and prepared for analysis. In addition, portions of the skin, muscle and bone were removed and processed for analysis; the urine and feces were also collected and analyzed for the 24-72 hour time points.
- 2B8-MX-DTPA was also radiolabeled with yttrium-[90] and its biological distribution evaluated in BALB/c mice over a 72-hour time period.
- four groups of five mice each were injected intravenously with approximately 1 ⁇ Ci of clinically-formulated conjugate (specific activity:12.2 mCi/mg); groups were subsequently sacrificed at 1, 24, 48 and 72 hours and their organs and tissues analyzed as described above. Radioactivity associated with each tissue specimen was determined by measuring bremstrahlung energy with a gamma scintillation counter. Activity values were subsequently expressed as percent injected dose per gram tissue or percent injected dose per organ. While organs and other tissues were rinsed repeatedly to remove superficial blood, the organs were not perfused. Thus, organ activity values were not discounted for the activity contribution represented by internally associated blood.
- conjugated 2B8 was radiolabeled with indium-[111] to a specific activity of 2.3 mCi/mg and roughly 1.1 ⁇ Ci was injected into each of twenty BALB/c mice to determine biodistribution of the radiolabeled material. Subsequentially, groups of five mice each were sacrificed at 1, 24, 48 and 72 hours and their organs and a portion of the skin, muscle and bone were removed and processed for analysis. In addition, the urine and feces were collected and analyzed for the 24-72 hour time-points.
- the level of radioactivity in the blood dropped from 40.3% of the injected dose per gram at 1 hour to 18.9% at 72 hours (data not shown). Values for the heart, kidney, muscle and spleen remained in the range of 0.7-9.8% throughout the experiment. Levels of radioactivity found in the lungs decreased from 14.2% at 1 hour to 7.6% at 72 hours; similarly the respective liver injected-dose per gram values were 10.3% and 9.9%. These data were used in determining radiation absorbed dose estimates I2B8 described below.
- 2B8-MX-DTPA was prepared and radiolabeled with 111 Indium to a specific activity of 2.7 mCi/mg.
- One hundred microliters of labeled conjugate (approximately 24 ⁇ Ci) were subsequently injected into each of 12 athymic mice bearing Ramos B cell tumors. Tumors ranged in weight from 0.1 to 1.0 grams.
- 50 ⁇ L of blood was removed by retro-orbital puncture, the mice sacrificed by cervical dislocation, and the tail, heart, lungs, liver, kidney, spleen, muscle, femur, and tumor removed.
- the radioactivity associated with each tissue specimen was determined using a gamma counter and the values expressed as percent injected dose per gram.
- tissue reactivity of murine monoclonal antibody 2B8 was evaluated using a panel of 32 different human tissues fixed with acetone.
- Antibody 2B8 reacts with the anti-CD20 antigen which had a very restricted pattern of tissue distribution, being observed only in a subset of cells in lymphoid tissues including those of hematopoietic origin.
- lymph node immunoreactivity was observed in a population of mature cortical B-lymphocytes as well as proliferating cells in the germinal centers. Positive reactivity was also observed in the peripheral blood, B-cell areas of the tonsils, white pulp of the spleen, and with 40-70% of the medullary lymphocytes found in the thymus. Positive reactivity was also seen in the follicles of the lamina limbal (Peyer's Patches) of the large intestines.
- aggregates or scattered lymphoid cells in the stroma of various organs including the bladder, breast, cervix, esophagus, lung, parotid, prostate, small intestine, and stomach, were also positive with antibody 2B8 (data not shown).
- the tissue reactivity of the 2B8-MX-DTPA conjugate was evaluated using a panel of sixteen human tissues which had been fixed with acetone. As previously demonstrated with the native antibody (data not shown), the 2B8-MX-DTPA conjugate recognized the CD20 antigen which exhibited a highly restricted pattern of distribution, being found only on a subset of cells of lymphoid origin. In the lymph node, immunoreactivity was observed in the B cell population. Strong reactivity was seen in the white pulp of the spleen and in the medullary lymphocytes of the thymus.
- Immunoreactivity was also observed in scattered lymphocytes in the bladder, heart, large intestines, liver, lung, and uterus, and was attributed to the presence of inflammatory cells present in these tissues. As with the native antibody, no reactivity was observed with neuroectodermal cells or with mesenchymal elements (data not shown).
- PSC Peripheral Stem Cell
- BM Bone Marrow
- Dose Levels of Y2B8 are as follows: Dose Level Dose (mCi) 1. 20 2. 30 3. 40
- MTD Maximum Tolerated Dose
- Imaging (Dosimetry) Studies are conducted as follows: each patient is involved in two in vivo biodistribution studies using I2B8. In the first study, 2 mg of I2B8 (5 mCi), is administered as an intravenous (i.v.) infusion over one hour; one week later 2B8 (ie unconjugated antibody) is administered by i.v. at a rate not to exceed 250 mg/hr followed immediately by 2 mg of I2B8 (5 mCi) administered by i.v. over one hour.
- Whole body average retention times for the indium [111] label are determined; such determinations are also made for recognizable organs or tumor lesions (“regions of interest”).
- the regions of interest are compared to the whole body concentrations of the label; based upon this comparison, an estimate of the localization and concentration of Y2B8 can be determined using standard protocols. If the estimated cumulative dose of Y2B8 is greater than eight (8) times the estimated whole body dose, or if the estimated cumulative dose for the liver exceeds 1500 cGy, no treatment with Y2B8 should occur.
- Dose Levels of Y2B8 are as follows: Dose Level Dose (mCi) 1. 10 2. 15 3. 20
- Optimal imaging will be defined by: (1) best effective imaging with the slowest disappearance of antibody; (2) best distribution minimizing compartmentalization in a single organ; and (3) best subjective resolution of the lesion (tumor/background comparison).
- the first therapeutic dose of Y2B8 will begin 14 days after the last dose of I2B8; for subsequent patients, the first therapeutic dose of Y2B8 will begin between two to seven days after the I2B8.
- C2B8 CHIMERIC ANTI-CD20 ANTIBODY PRODUCTION
- RNA was isolated from the 2B8 mouse hybridoma cell (as described in Chomczynki, P. et al., “Single step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction.” Anal. Biochem. 162:156-159 (1987)). and cDNA was prepared therefrom.
- the mouse immunoglobulin light chain variable region DNA was isolated from the cDNA by polymerase chain reaction using a set of DNA primers with homology to mouse light chain signal sequences at the 5′ end and mouse light chain J region at the 3′ end. Primer sequences were as follows:
- V L Sense (SEQ. ID. NO.3) 5′ ATC AC AGATCT CTC ACC ATG GAT TTT CAG GTG CAG ATT ATC AGC TTC 3′
- V L Antisense (SEQ. ID. NO.4) 5′ TGC AGC ATC CGTACG TTT GAT TTC CAG CTT 3′
- FIGS. 1 and 2 for the corresponding Bgl II and Bsi WI sites in TCAE 8
- FIG. 3 for the corresponding sites in anti-CD20 in TCAE 8.
- FIG. 4 SEQ. ID. NO. 5
- FIG. 4 further provides the amino acid sequence from this murine variable region, and the CDR and framework regions.
- the mouse light chain variable region from 2B8 is in the mouse kappa VI family. See, Kabat, supra.
- V H Antisense SEQ. ID. NO.7
- 5′ GG(G/C) TGT TGT GCTAGC TG(A/C) (A/G)GA GAC (G/A)GT GA 3′
- FIGS. 1 and 2 for corresponding Mlu I and Nhe I sites in TCAE 8
- FIG. 3 for corresponding sites in anti-CD20 in TCAE 8.
- FIG. 5 The sequence for this mouse heavy chain is set forth in FIG. 5 (SEQ. ID. NO. 8); see also FIG. 3, nucleotide 2401 through 2820.
- FIG. 5 also provides the amino acid sequence from this murine variable region, and the CDR and framework regions.
- the mouse heavy chain variable region from 2B8 is in the mouse VH 2B family. See, Kabat, supra.
- CHO cells DG44 were grown in SSFM II minus hypoxanthine and thymidine media (Gibco, Grand Island, N.Y., Form No. 91-0456PK); SP2/0 mouse myeloma cells were grown in Dulbecco's Modified Eagles Medium media (“DMEM”) (Irvine Scientific, Santa Ana, Calif., Cat. No. 9024) with 5% fetal bovine serum and 20 ml/L glutamine added.
- DMEM Dulbecco's Modified Eagles Medium media
- chimeric anti-CD20 was analyzed by electrophoresis in polyacrylamide gels and estimated to be greater than about 95% pure. Affinity and specificity of the chimeric antibody was determined based upon 2B8. Chimeric anti-CD20 antibody tested in direct and competitive binding assays, when compared to murine anti-CD20 monoclonal antibody 2B8, evidenced comparable affinity and specificity on a number of CD20 positive B cells lines (data not presented).
- the apparent affinity constant (“Kap”) of the chimeric antibody was determined by direct binding of I 125 radiolabeled chimeric anti-CD20 and compared to radiolabeled 2B8 by Scatchard plot; estimated Kap for CHO produced chimeric anti-CD20 was 5.2 ⁇ 10 ⁇ 9 M and for SP2/0 produced antibody, 7.4 ⁇ 10 ⁇ 9 M. The estimated Kap for 2B8 was 3.5 ⁇ 10 ⁇ 9 M. Direct competition by radioimmunoassay was utilized to confirm both the specificity and retention of immunoreactivity of the chimeric antibody by comparing its ability to effectively compete with 2B8.
- Example II.B The results of Example II.B indicate, inter alia, that chimeric anti-CD20 antibodies were generated from CHO and SP2/0 transfectomas using the TCAE 8 vectors, and these chimeric antibodies had substantially the same specificity and binding capability as murine anti-CD20 monoclonal antibody 2B8.
- C1q was obtained from Quidel, Mira Mesa, Calif., Prod. No. A400 and FITC label from Sigma, St. Louis Mo., Prod. No. F-7250; FITC. Labeling of C1q was accomplished in accordance with the protocol described in Selected Methods In Cellular Immunology, Michell & Shiigi, Ed. (W. H. Freeman & Co., San Francisco, Calif., 1980, p. 292).
- Chimeric anti-CD20 antibodies were analyzed for their ability to lyse lymphoma cell lines in the presence of human serum (complement source).
- CD20 positive SB cells were labeled with 51 Cr by admixing 100 ⁇ Ci of 51 Cr with 1 ⁇ 10 6 SB cells for 1 hr at 37° C.; labeled SB cells were then incubated in the presence of equivalent amounts of human complement and equivalent amounts (0-50 ⁇ g/ml) of either chimeric anti-CD20 antibodies or 2B8 for 4 hrsat 37° C. (see, Brunner. K. T. et al., “Quantitative assay of the lytic action of immune lymphoid cells on 51 Cr-labeled allogeneic target cells in vitro.” Immunology 14:181-189 (1968). Results are presented in FIG. 7.
- CD20 positive cells SB
- CD20 negative cells T cell leukemia line HSB; see, Adams, Richard, “Formal Discussion,” Can. Res. 27:2479-2482 (1967); ATCC deposit no. ATCC CCL 120.1) were utilized; both were labeled with 51 Cr. Analysis was conducted following the protocol described in Brunner, K. T.
- Example II The results of Example II indicate, inter alia, that the chimeric anti-CD20 antibodies of Example I were immunologically active.
- lymph node biopsies were taken at days 7, 14 and 28 following the last injection, and a single cell preparation stained for quantitation of lymphocyte populations by flow cytometry.
- HBSS Hanks Balanced Salt Solution
- fetal bovine serum heat inactivated at 56° C. for 30 min.
- a 0.1 ml volume of the cell preparation was distributed to each of six (6), 15 ml conical centrifuge tubes
- Fluorescein labeled monoclonal antibodies with specificity for the human lymphocyte surface markers CD2 (AMAC, Westbrook, Me.), CD20 (Becton Dickinson) and human IgM (Binding Site, San Diego, Calif.) were added to 3 of the tubes for identifying T and B lymphocyte populations.
- Chimeric anti-CD20 antibody bound to monkey B cell surface CD20 was measured in the fourth tube using polyclonal goat anti-human IgG coupled with phycoerythrin (AMAC). This reagent was pre-adsorbed on a monkey Ig-sepharose column to prevent cross-reactivity to monkey Ig, thus allowing specific detection and quantitation of chimeric anti-CD20 antibody bound to cells.
- AMAC phycoerythrin
- Lymphocyte populations were initially identified by forward versus right angle light scatter in a dot-plot bitmap with unlabeled leucocytes. The total lymphocyte population was then isolated by gating out all other events. Subsequent fluorescence measurements reflected only gated lymphocyte specific events.
- FIGS. 9A, B and C provide the results derived from the chimeric anti-CD20:CHO & SP2/0 study, with FIG. 9A directed to the 0.4 mg/kg dose level; FIG. 9B directed to the 1.6 mg/kg dose level; and FIG. 9C directed to the 6.4 mg/kg dose level.
- Table I summarizes the results of single and multiple doses of immunologically active chimeric anti-CD20 antibody on the peripheral blood populations; single dose condition was 6.4 mg/kg; multiple dose condition was 0.4 mg/kg over four (4) consecutive days (these results were derived from the monkeys described above).
- Table II summarizes the effect of immunologically active, chimeric anti-CD20 antibodies on cell populations of lymph nodes using the treatment regimen of Table I (4 daily doses of 0.4 mg/kg; 1 dose of 6.4 mg/kg); comparative values for normal lymph nodes (control monkey, axillary and inguinal) and normal bone marrow (two monkeys) are also provided.
- Table II evidence effective depletion of B lymphocytes for both treatment regimens.
- Table II further indicates that for the non-human primates, complete saturation of the B cells in the lymphatic tissue with immunologically active, chimeric anti-CD20 antibody was not achieved; additionally, antibody coated cells were observed seven (7) days after treatment, followed by a marked depletion of lymph node B cells, observed on day 14.
- Example III,A The results of Example III,A indicate, inter alia that low doses of immunologically active, chimeric anti-CD20 leads to long-term peripheral blood B cell depletion in primates.
- the data also indicates that significant depletion of B cell populations was achieved in peripheral lymph nodes and bone marrow when repetitive high doses of the antibody were administered.
- Continued follow-up on the test animals has indicated that even with such severe depletion of peripheral B lymphocytes during the first week of treatment, no adverse health effects have been observed.
- a conclusion to be drawn is that the pluripotent stem cells of these primates were not adversely affected by the treatment.
- Toxicity ranged from “none”, to “fever” to “moderate” (two patients) to “severe” (one patient); all patients completed the therapy treatment.
- Peripheral Blood Lymphocytes were analyzed to determine, inter alia, the impact of C2B8 on T-cells and B-cells. Consistently for all patients, Peripheral Blood B Lymphocytes were depleted after infusion with C2B8 and such depletion was maintained for in excess of two weeks.
- One patient (receiving 100 mg/ 2 of C2B8) evidenced a Partial Response to the C2B8 treatment (reduction of greater than 50% in the sum of the products of the perpendicular diameters of all measurable indicator lesions lasting greater than four weeks, during which no new lesions may appear and no existing lesions may enlarge); at least one other patient (receiving 500 mg/m 2 ) evidenced a Minor Response to the C2B8 treatment (reduction of less than 50% but at least 25% in the sum of the products of the two longest perpendicular diameters of all measurable indicator lesions).
- results of the PBLs are set forth in FIG. 14; data for the patient evidencing a PR is set forth in FIG.
- FIG. 14A for the patient evidencing an MR, data is set forth in FIG. 14B.
- the B cell markers CD20 and CD19, Kappa and Lambda were depleted for a period in excess of two weeks; while there was a slight, initial reduction in T-cell counts, these returned to an approximate base-line level in a relatively rapid time-frame.
- Phase I consisting of a dose escalation to characterize dose limiting toxicities and determination of biologically active tolerated dose level
- groups of three patients will receive weekly i.v. infusions of C2B8 for a total of four (4) separate infusions.
- Cumulative dose at each of the three levels will be as follows: 500 mg/m 2 (125 mg/m 2 /infusion); 1000 mg/m 2 (250 mg/m 2 /infusion); 1500 mg/m 2 (375 mg/m 2 /infusion.
- a biologically active tolerated dose is defined, and will be determined, as the lowest dose with both tolerable toxicity and adequate activity); in Phase II, additional patients will receive the biologically active tolerated dose with an emphasis on determining the activity of the four doses of C2B8.
- a combination therapeutic approach using C2B8 and Y2B8 was investigated in a mouse xenographic model (nu/nu mice, female, approximately 10 weeks old) utilizing a B cell lymphoblastic tumor (Ramos tumor cells). For comparative purposes, additional mice were also treated with C2B8 and Y2B8.
- Ramos tumor cells (ATCC, CRL 1596) were maintained in culture using RPMI-1640 supplemented with 10% fetal calf serum and glutamine at 37° C. and 5% CO 2 . Tumors were initiated in nine female nude mice approximately 7-10 weeks old by subcutaneous injection of 1.7 ⁇ 10 6 Ramos cells in a volume of 0.10 ml (HBSS) using a 1 cc syringe fitted with 25 g needle. All animals were manipulated in a laminar flow hood and all cages, bedding, food and water were autoclaved.
- HBSS 0.10 ml
- Tumor cells were passaged by excising tumors and passing these through a 40 mesh screen; cells were washed twice with 1 ⁇ HBSS (50 ml) by centrifugation (1300RPM), resuspended in IX HBSS to 10 ⁇ 10 6 cells/ml, and frozen at ⁇ 70° C. until used.
- mice were thawed, pelleted by centrifugation (1300RPM) and washed twice with 1 ⁇ HBSS. Cells were then resuspended to approximately 2.0 ⁇ 10 6 cells/ml. Approximately 9 to 12 mice were injected with 0.10 ml of the cell suspension (s.c.) using a 1 cc syringe fitted with a 25 g needle; injections were made on the animal's left side, approximately mid-region. Tumors developed in approximately two weeks. Tumors were excised and processed as described above. Study mice were injected as described above with 1.67 ⁇ 10 6 cells in 0.10 ml HBSS.
- mice were injected with the tumor cells. Approximately ten days later, 24 mice were assigned to four study groups (six mice/group) while attempting to maintain a comparable tumor size distribution in each group (average tumor size, expressed as a product of length ⁇ width of the tumor, was approximately 80 mm 2 ). The following groups were treated as indicated via tail-vain injections using a 100 ⁇ l Hamilton syringe fitted with a 25 g needle: A. Normal Saline B. Y2B8 (100 ⁇ Ci) C. C2B8 (200 ⁇ g); and D. Y2B8 (100 ⁇ Ci) + C2B8 (200 ⁇ g)
- Yttrium-[90] chloride (6 mCi) was transformed to a polypropylene tube and adjusted to pH 4.1-4.4 using metal free 2M sodium acetate.
- 2B8-MX-DTPA (0.3 mg in normal saline; see above for preparation of 2B8-MX-DTPA) was added and gently mixed by vortexing. After 15 min. incubation, the reaction was quenched by adding 0.05 ⁇ volume 20 mM EDTA and 0.05 ⁇ volume 2M sodium acetate.
- Radioactivity concentration was determined by diluting 5.0 ⁇ l of the reaction mixture in 2.5 ml 1 ⁇ PBS containing 75 mg/ml HSA and 1 mM DTPA, (“formulation buffer”); counting was accomplished by adding 10.0 ⁇ l to 20 ml of EcolumeTM scintillation cocktail. The remainder of the reactive mixture was added to 3.0 ml formulation buffer, sterile filtered and stored at 2-8° C. until used. Specific activity (14 mCi/mg at time of injection) was calculated using the radioactivity concentration and the calculated protein concentration based upon the amount of antibody added to the reaction mixture. Protein-associated radioactivity was determined using instant thin-layer chromatography. Radioincorporation was 95%. Y2B8 was diluted in formulation buffer immediately before use and sterile-filtered (final radioactivity concentration was 1.0 mCi/ml).
- C2B8 was prepared as described above. C2B8 was provided as a sterile reagent in normal saline at 5.0 mg/ml. Prior to injection, the C2B8 was diluted in normal saline to 2.0 mg/ml and sterile filtered.
- tumor size was expressed as a product of length and width, and measurements were taken on the days indicated in FIG. 11 (Y2B8 vs. Saline); FIG. 12 (C2B8 vs. Saline); and FIG. 13 (Y2B8+C2B8 vs. Saline). Standard error was also determined.
- Radiolabeled C2B8 such a strategy allows for utilization of the benefits of the immunologically active portion of C2B8 plus those benefits associated with a radiolabel.
- Preferred radiolabels include yttrium-90 given the larger circulating half-life of C2B8 versus the murine antibody 2B8.
- a preferred alternative strategy is to treat the patient with C2B8 (either with a single dose or multiple doses) such that most, if not all, peripheral B cells have been depleted. This would then be followed with the use of radiolabeled 2B8; because of the depletion of peripheral B cells, the radiolabeled 2B8 stands an increased chance of targeting tumor cells.
- Iodine [131] labeled 2B8 is preferably utilized, given the types of results reported in the literature with this label (see Kaminski).
- An alternative preference involves the use of a radiolabeled 2B8 (or C2B8) first in an effort to increase the permeability of a tumor, followed by single or multiple treatments with C2B8; the intent of this strategy is to increase the chances of the C2B8 in getting both outside and inside the tumor mass.
- a further strategy involved the use of chemotherapeutic agenst in combination with C2B8. These strategies include so-called “staggered” treatments, ie, treatment with chemotherapeutic agent, followed by treatment with C2B8, followed by a repetition of this protocol. Alternatively, initial treatment with a single or multiple doses of C2B8, thereafter followed with chemotherapeutic treatement, is viable.
- chemotherapeutic agents include, but are not limited to: cyclophlsphamide; doxorubicin; vincristine; and prednisone, See Armitage, J. O. et al., Cancer 50:1695 (1982), incorporated herein by reference.
- Anti-CD20 in TCAE 8 was deposited with the American Type Culture Collection (ATCC), 12301 Parklawn Drive, Rockville, Md., 20852, under the provisions of the Budapest Treaty for the International Recognition of the Deposit of Microorganisms for the Purpose of Patent Procedure (“Budapest Treaty”). The microorganism was tested by the ATCC on Nov. 9, 1992, and determined to be viable on that date. The ATCC has assigned this microorganism for the following ATCC deposit number: ATCC 69119 (anti-CD20 in TCAE 8). Hybridoma 2B8 was deposited with the ATCC on Jun. 22, 1993 under the provisions of the Budapest Treaty. The viability of the culture was determined on Jun. 25, 1993 and the ATCC has assigned this hybridoma the following ATCC deposit number: HB 11388.
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Abstract
Disclosed herein are therapeutic treatment protocols designed for the treatment of B cell lymphoma. These protocols are based upon therapeutic strategies which include the use of administration of immunologically active mouse/human chimeric anti-CD20 antibodies, radiolabeled anti-CD20 antibodies, and cooperative strategies comprising the use of chimeric anti-CD20 antibodies and radiolabeled anti-CD20 antibodies.
Description
- The references to be discussed throughout this document are set forth merely for the information described therein prior to the filing dates of this document, and nothing herein is to be construed as an admission, either express or implied, that the references are “prior art” or that the inventors are not entitled to antedate such descriptions by virtue of prior inventions or priority based on earlier filed applications.
- The present invention is directed to the treatment of B cell lymphoma using chimeric and radiolabeled antibodies to the B cell surface antigen Bp35 (“CD20”).
- The immune system of vertebrates (for example, primates, which include humans, apes, monkeys, etc.) consists of a number of organs and cell types which have evolved to: accurately and specifically recognize foreign microorganisms (“antigen”) which invade the vertebrate-host; specifically bind to such foreign microorganisms; and, eliminate/destroy such foreign microorganisms. Lymphocytes, amongst others, are critical to the immune system. Lymphocytes are produced in the thymus, spleen and bone marrow (adult) and represent about 30% of the total white blood cells present in the circulatory system of humans (adult). There are two major sub-populations of lymphocytes: T cells and B cells. T cells are responsible for cell mediated immunity, while B cells are responsible for antibody production (humoral immunity). However, T cells and B cells can be considered as interdependent—in a typical immune response, T cells are activated when the T cell receptor binds to fragments of an antigen that are bound to major histocompatability complex (“MHC”) glycoproteins on the surface of an antigen presenting cell; such activation causes release of biological mediators (“interleukins”) which, in essence, stimulate B cells to differentiate and produce antibody (“immunoglobulins”) against the antigen.
- Each B call within the host expresses a different antibody on its surface—thus, one B cell will express antibody specific for one antigen, while another B cell will express antibody specific for a different antigen. Accordingly, B cells are quite diverse, and this diversity is critical to the immune system. In humans, each B cell can produce an enormous number of antibody molecules (ie about 107 to 108). Such antibody production most typically ceases (or substantially decreases) when the foreign antigen has been neutralized. Occasionally, however, proliferation of a particular B cell will continue unabated; such proliferation can result in a cancer referred to as “B cell lymphoma.”
- T cells and B cells both comprise cell surface proteins which can be utilized as “markers” for differentiation and identification. One such human B cell marker is the human B lymphocyte-restricted differentiation antigen Bp35, referred to as “CD20.” CD20 is expressed during early pre-B cell development and remains until plasma cell differentiation. Specifically, the CD20 molecule may regulate a step in the activation process which is required for cell cycle initiation and differentiation and is usually expressed at very high levels on neoplastic (“tumor”) B cells. CD20, by definition, is present on both “normal” B cells as well as “malignant” B cells, ie those B cells whose unabated proliferation can lead to B cell lymphoma. Thus, the CD20 surface antigen has the potential of serving as a candidate for “targeting” of B cell lymphomas.
- In essence, such targeting can be generalized as follows: antibodies specific to the CD20 surface antigen of B cells are, eg injected into a patient. These anti-CD20 antibodies specifically bind to the CD20 cell surface antigen of (ostensibly) both normal and malignant B cells; the anti-CD20 antibody bound to the CD20 surface antigen may lead to the destruction and depletion of neoplastic B cells. Additionally, chemical agents or radioactive labels having the potential to destroy the tumor can be conjugated to the anti-CD20 antibody such that the agent is specifically “delivered” to, e.g., the neoplastic B cells. Irrespective of the approach, a primary goal is to destroy the tumor: the specific approach can be determined by the particular anti-CD20 antibody which is utilized and, thus, the available approaches to targeting the CD20 antigen can vary considerably.
- For example, attempts at such targeting of CD20 surface antigen have been reported. Murine (mouse) monoclonal antibody 1F5 (an anti-CD20 antibody) was reportedly administered by continuous intravenous infusion to B cell lymphoma patients. Extremely high levels (>2 grams) of 1F5 were reportedly required to deplete circulating tumor cells, and the results were described as being “transient.” Press et al., “Monoclonal Antibody 1F5 (Anti-CD20) Serotherapy of Human B-Cell Lymphomas.”Blood 69/2:584-591 (1987). A potential problem with this approach is that non-human monoclonal antibodies (eg, murine monoclonal antibodies) typically lack human effector functionality, ie they are unable to, inter alia, mediate complement dependent lysis or lyse human target cells through antibody dependent cellular toxicity or Fc-receptor mediated phagocytosis. Furthermore, non-human monoclonal antibodies can be recognized by the human host as a foreign protein; therefore, repeated injections of such foreign antibodies can lead to the induction of immune responses leading to harmful hypersensitivity reactions. For murine-based monoclonal antibodies, this is often referred to as a Human Anti-Mouse Antibody response, or “HAMA” response. Additionally, these “foreign” antibodies can be attacked by the immune system of the host such that they are, in effect, neutralized before they reach their target site.
- Lymphocytes and lymphoma cells are inherently sensitive to radiotherapy for several reasons: the local emission of ionizing radiation of radiolabeled antibodies may kill cells with or without the target antigen (eg, CD20) in close proximity to antibody bound to the antigen; penetrating radiation may obviate the problem of limited access to the antibody in bulky or poorly vascularized tumors; and, the total amount of antibody required may be reduced. The radionuclide emits radioactive particles which can damage cellular DNA to the point where the cellular repair mechanisms are unable to allow the cell to continue living; therefore, if the target cells are tumors, the radioactive label beneficially kills the tumor cells. Radiolabeled antibodies, by definition, include the use of a radioactive substance which may require the need for precautions for both the patient (ie possible bone marrow transplantation) as well as the health care provider (ie the need to exercise a high degree of caution when working with the radioactivity).
- Therefore, an approach at improving the ability of murine monoclonal antibodies to be effective in the treatment of B-cell disorders has been to conjugate a radioactive label or toxin to the antibody such that the label or toxin is localized at the tumor site. For example, the above-referenced IF5 antibody has been “labeled” with iodine-131 (“131I”) and was reportedly evaluated for biodistribution in two patients. See Eary, J. F. et al., “Imaging and Treatment of B-Cell Lymphoma” J. Nuc. Med. 31/8:1257-1268 (1990); see also, Press, O. W. et al., “Treatment of Refractory Non-Hodgkin's Lymphoma with Radiolabeled MB-1 (Anti-CD37) Antibody” J. Clin. Onc. 7/8:1027-1038 (1989) (indication that one patient treated with 131I-labeled IF-5 achieved a “partial response”); Goldenberg, D. M. et al., “Targeting, Dosimetry and Radioimmunotherapy of B-Cell Lymphomas with Iodine-131-Labeled LL2 Monoclonal Antibody” J. Clin. Onc. 9/4:548-564 (1991) (three of eight patients receiving multiple injections reported to have developed a HAMA response); Appelbaum, F. R. “Radiolabeled Monoclonal Antibodies in the Treatment of Non-Hodgkin's Lymphoma” Hem./Onc. Clinics of N.A. 5/5:1013-1025 (1991) (review article); Press, O. W. et al “Radiolabeled-Antibody Therapy of B-Cell Lymphoma with Autologous Bone Marrow Support.” New England Journal of Medicine 329/17: 1219-12223 (1993) (iodine-131 labeled anti-CD20 antibody IF5 and B1); and Kaminski, M. G. et al “Radioimmunotherapy of B-Cell Lymphoma with [131I ] Anti-B1 (Anti-CD20) Antibody”. NEJM329/7 (1993) (iodine-131 labeled anti-CD20 antibody B1; hereinafter “Kaminski”).
- Toxins (ie chemotherapeutic agents such as doxorubicin or mitomycin C) have also been conjugated to antibodies. See, for example, PCT published application WO 92/07466 (published May 14, 1992).
- “Chimeric” antibodies, ie antibodies which comprise portions from two or more different species (eg, mouse and human) have been developed as an alternative to “conjugated” antibodies. For example, Liu, A. Y. et al., “Production of a Mouse-Human Chimeric Monoclonal Antibody to CD20 with Potent Fc-Dependent Biologic Activity”J. Immun. 139/10:3521-3526 (1987), describes a mouse/human chimeric antibody directed against the CD20 antigen. See also, PCT Publication No. WO 88/04936. However, no information is provided as to the ability, efficacy or practicality of using such chimeric antibodies for the treatment of B cell disorders in the reference. It is noted that in vitro functional assays (eg complement dependent lysis (“CDC”); antibody dependent cellular cytotoxicity (“ADCC”), etc.) cannot inherently predict the in vivo capability of a chimeric antibody to destroy or deplete target cells expressing the specific antigen. See, for example, Robinson, R. D. et al., “Chimeric mouse-human anti-carcinoma antibodies that mediate different anti-tumor cell biological activities,” Hum. Antibod. Hybridomas 2:84-93 (1991) (chimeric mouse-human antibody having undetectable ADCC activity). Therefore, the potential therapeutic efficacy of chimeric antibody can only truly be assessed by in vivo experimentation.
- What is needed, and what would be a great advance in the art, are therapeutic approaches targeting the CD20 antigen for the treatment of B cell lymphomas in primates, including, but not limited to, humans.
- Disclosed herein are therapeutic methods designed for the treatment of B cell disorders, and in particular, B cell lymphomas. These protocols are based upon the administration of immunologically active chimeric anti-CD20 antibodies for the depletion of peripheral blood B cells, including B cells associated with lymphoma; administration of radiolabeled anti-CD20 antibodies for targeting localized and peripheral B cell associated tumors; and administration of chimeric anti-CD20 antibodies and radiolabeled anti-CD20 antibodies in a cooperative therapeutic strategy.
- FIG. 1 is a diagrammatic representation of a tandem chimeric antibody expression vector useful in the production of immunologically active chimeric anti-CD20 antibodies (“
TCAE 8”); - FIGS. 2A through 2E are the nucleic acid sequence of the vector of FIG. 1;
- FIGS. 3A through 3F are the nucleic acid sequence of the vector of FIG. 1 further comprising murine light and heavy chain variable regions (“anti-CD20 in
TCAE 8”); - FIG. 4 is the nucleic acid and amino acid sequences (including CDR and framework regions) of murine variable region light chain derived from murine anti-CD20 monoclonal antibody 2B8;
- FIG. 5 is the nucleic acid and amino acid sequences (including CDR and framework regions) of murine variable region heavy chain derived from murine anti-CD20 monoclonal antibody 2B8;
- FIG. 6 are flow cytometry results evidencing binding of fluorescent-labeled human C1q to chimeric anti-CD20 antibody, including, as controls labeled C1q; labeled C1q and murine anti-CD20 monoclonal antibody 2B8; and labeled C1q and human IgGl,k;
- FIG. 7 represents the results of complement related lysis comparing chimeric anti-CD20 antibody and murine anti-CD20 monoclonal antibody 2B8;
- FIG. 8 represents the results of antibody mediated cellular cytotoxicity with in vivo human effector cells comparing chimeric anti-CD20 antibody and 2B8;
- FIGS. 9A, 9B and9C provide the results of non-human primate peripheral blood B lymphocyte depletion after infusion of 0.4 mg/kg (A); 1.6 mg/kg (B); and 6.4 mg/kg (C) of immunologically active chimeric anti-CD20 antibody;
- FIG. 10 provides the results of, inter alia, non-human primate peripheral blood B lymphocyte depletion after infusion of 0.01 mg/kg of immunologically active chimeric anti-CD20 antibody;
- FIG. 11 provides results of the tumoricidal impact of Y2B8 in a mouse xenographic model utilizing a B cell lymphoblastic tumor;
- FIG. 12 provides results of the tumoricidal impact of C2B8 in a mouse xenographic model utilizing a B cell lymphoblastic tumor;
- FIG. 13 provides results of the tumoricidal impact of a combination of Y2B8 and C2B8 in a mouse xenographic model utilizing a B cell lymphoblastic tumor; and
- FIGS. 14A and 14B provide results from a Phase I/II clinical analysis of C2B8 evidencing B-cell population depletion over time for patients evidencing a partial remission of the disease (14A) and a minor remission of the disease (14B).
- Generally, antibodies are composed of two light chains and two heavy chain molecules; these chains form a general “Y” shape, with both light and heavy chains forming the arms of the Y and the heavy chains forming the base of the Y. Light and heavy chains are divided into domains of structural and functional homology. The variable domains of both the light (“VL”) and the heavy (“VH”) chains determine recognition and specificity. The constant region domains of light (“CL”) and heavy (“CH”) chains confer important biological properties, eg antibody chain association, secretion, transplacental mobility, Fc receptor binding complement binding, etc. The series of events leading to immunoglobulin gene expression in the antibody producing cells are complex. The variable domain region gene sequences are located in separate germ line gene segments referred to as “VH,” “D,” and “JH,” or “VL” and “JL.” These gene segments are joined by DNA rearrangements to form the complete V regions expressed in heavy and light chains, respectively. The rearranged, joined V segments (VL-JL and VH-D-JH) then encode the complete variable regions or antigen binding domains of light and heavy chains, respectively.
- Serotherapy of human B cell lymphomas using an anti-CD20 murine monoclonal antibody (1F5) has been described by Press et al., (69Blood 584, 1987, supra); the reported therapeutic responses, unfortunately, were transient. Additionally, 25% of the tested patients reportedly developed a human anti-mouse antibody (HAMA) response to the serotherapy. Press et al., suggest that these antibodies, conjugated to toxins or radioisotopes, might afford a more lasting clinical benefit than the unconjugated antibody.
- Owing to the debilitating effects of B cell lymphoma and the very real need to provide viable treatment approaches to this disease, we have embarked upon different approaches having a particular antibody, 2B8, as the common link between the approaches. One such approach advantageously exploits the ability of mammalian systems to readily and efficiently recover peripheral blood B cells; using this approach, we seek to, in essence, purge or deplete B cells in peripheral blood and lymphatic tissue as a means of also removing B cell lymphomas. We accomplish this by utilization of, inter alia, immunologically active, chimeric anti-CD20 antibodies. In another approach, we seek to target tumor cells for destruction with radioactive labels.
- As used herein, the term “anti-CD20 antibody” is an antibody which specifically recognizes a cell surface non-glycosylated phosphoprotein of 35,000 Daltons, typically designated as the human B lymphocyte restricted differentiation antigen Bp35, commonly referred to as CD20. As used herein, the term “chimeric” when used in reference to anti-CD20 antibodies, encompasses antibodies which are most preferably derived using recombinant deoxyribonucleic acid techniques and which comprise both human (including immunologically “related” species, eg, chimpanzee) and non-human components: the constant region of the chimeric antibody is most preferably substantially identical to the constant region of a natural human antibody; the variable region of the chimeric antibody is most preferably derived from a non-human source and has the desired antigenic and specificity to the CD20 cell surface antigen. The non-human source can be any vertebrate source which can be used to generate antibodies to a human CD20 cell surface antigen or material comprising a human CD20 cell surface antigen. Such non-human source includes, but is not limited to, rodents (eg, rabbit, rat, mouse, etc.) and non-human primates (eg, Old World Monkey, Ape, etc.). Most preferably, the non-human component (variable region) is derived from a murine source. As used herein, the phrase “immunologically active” when used in reference to chimeric anti-CD20 antibodies, means a chimeric antibody which binds human C1q, mediates complement dependent lysis (“CDC”) of human B lymphoid cell lines, and lyses human target cells through antibody dependent cellular cytotoxicity (“ADCC”). As used herein, the phrases “indirect labeling” and “indirect labeling approach” both mean that a chelating agent is covalently attached to an antibody and at least one radionuclide is inserted into the chelating agent. Preferred chelating agents and radionuclides are set forth in Srivagtava, S. C. and Mease, R. C.,“Progress in Research on Ligands, Nuclides and Techniques for Labeling Monoclonal Antibodies,”Nucl. Med. Bio. 18/6: 589-603 (1991) (“Srivagtava”) which is incorporated herein by reference. A particularly preferred chelating agent is 1-isothiocycmatobenzyl-3-methyldiothelene triaminepent acetic acid (“MX-DTPA”); particularly preferred radionuclides for indirect labeling include indium [111] and yttrium [90]. As used herein, the phrases “direct labeling” and “direct labeling approach” both mean that a radionuclide is covalently attached directly to an antibody (typically via an amino acid residue). Preferred radionuclides are provided in Srivagtava; a particularly preferred radionuclide for direct labeling is iodine [131] covalently attached via tyrosine residues. The indirect labeling approach is particularly preferred.
- The therapeutic approaches disclosed herein are based upon the ability of the immune system of primates to rapidly recover, or rejuvenate, peripheral blood B cells. Additionally, because the principal immune response of primates is occasioned by T cells, when the immune system has a peripheral blood B cell deficiency, the need for “extraordinary” precautions (ie patient isolation, etc.) is not necessary. As a result of these and other nuances of the immune systems of primates, our therapeutic approach to B cell disorders allows for the purging of peripheral blood B cells using immunologically active chimeric anti-CD20 antibodies.
- Because peripheral blood B cell disorders, by definition, can indicate a necessity for access to the blood for treatment, the route of administration of the immunologically active chimeric anti-CD20 antibodies and radioalabeled anti-CD20 antibodies is preferably parenteral; as used herein, the term “parenteral” includes intravenous, intramuscular, subcutaneous, rectal, vaginal or intraperitoneal administration. Of these, intravenous administration is most preferred.
- The immunologically active chimeric anti-CD20 antibodies and radiolabeled anti-CD20 antibodies will typically be provided by standard technique within a pharmaceutically acceptable buffer, for example, sterile saline, sterile buffered water, propylene glycol, combinations of the foregoing, etc. Methods for preparing parenteraly administerable agents are described inPharmaceutical Carriers & Formulations, Martin, Remington's Pharmaceutical Sciences, 15th Ed. (Mack Pub. Co., Easton, Pa. 1975), which is incorporated herein by reference.
- The specific, therapeutically effective amount of immunologically active chimeric anti-CD20 antibodies useful to produce a unique therapeutic effect in any given patient can be determined by standard techniques well known to those of ordinary skill in the art.
- Effective dosages (ie therapeutically effective amounts) of the immunologically active chimeric anti-CD20 antibodies range from about 0.001 to about 30 mg/kg body weight, more preferably from about 0.01 to about 25 mg/kg body weight, and most preferably from about 0.4 to about 20.0 mg/kg body weight. Other dosages are viable; factors influencing dosage include, but are not limited to, the severity of the disease; previous treatment approaches; overall health of the patient; other diseases present, etc. The skilled artisan is readily credited with assessing a particular patient and determining a suitable dosage that falls within the ranges, or if necessary, outside of the ranges.
- Introduction of the immunologically active chimeric anti-CD20 antibodies in these dose ranges can be carried out as a single treatment or over a series of treatments. With respect to chimeric antibodies, it is preferred that such introduction be carried out over a series of treatments; this preferred approach is predicated upon the treatment methodology associated with this disease. While not wishing to be bound by any particular theory, because the immunologically active chimeric anti-CD20 antibodies are both immunologically active and bind to CD20, upon initial introduction of the immunologically active chimeric anti-CD20 antibodies to the individual, peripheral blood B cell depletion will begin; we have observed a nearly complete depletion within about 24 hours post treatment infusion. Because of this, subsequent introduction(s) of the immunologically active chimeric anti-CD20 antibodies (or radiolabeled anti-CD20 antibodies) to the patient is presumed to: a) clear remaining peripheral blood B cells; b) begin B cell depletion from lymph nodes; c) begin B cell depletion from other tissue sources, eg, bone marrow, tumor, etc. Stated again, by using repeated introductions of the immunologically active chimeric anti-CD20 antibodies, a series of events take place, each event being viewed by us as important to effective treatment of the disease. The first “event” then, can be viewed as principally directed to substantially depleting the patient's peripheral blood B cells; the subsequent “events” can be viewed as either principally directed to simultaneously or serially clearing remaining B cells from the system clearing lymph node B cells, or clearing other tissue B cells.
- In effect, while a single dosage provides benefits and can be effectively utilized for disease treatment/management, a preferred treatment course can occur over several stages; most preferably, between about 0.4 and about 20 mg/kg body weight of the immunologically active chimeric anti-CD20 antibodies is introduced to the patient once a week for between about 2 to 10 weeks, most preferably for about 4 weeks.
- With reference to the use of radiolabeled anti-CD20 antibodies, a preference is that the antibody is non-chimeric; this preference is predicted upon the significantly longer circulating half-life of chimeric antibodies vis-a-vis murine antibodies (ie with a longer circulating half-life, the radionuclide is present in the patient for extended periods). However, radiolabeled chimeric antibodies can be beneficially utilized with lower milli-Curries (“mCi”) dosages used in conjunction with the chimeric antibody relative to the murine antibody. This scenario allows for a decrease in bone marrow toxicity to an acceptable level, while maintaining therapeutic utility.
- A variety of radionuclides are applicable to the present invention and those skilled in the art are credited with the ability to readily determine which radionuclide is most appropriate under a variety of circumstances. For example, iodine [131] is a well known radionuclide used for targeted immunotherapy. However, the clinical usefulness of iodine [131] can be limited by several factors including: eight-day physical half-life; dehalogenation of iodinated antibody both in the blood and at tumor sites; and emission characteristics (eg large gamma component) which can be suboptimal for localized dose deposition in tumor. With the advent of superior chelating agents, the opportunity for attaching metal chelating groups to proteins has increased the opportunities to utilize other radionuclides such as indium [131] and yttrium [90]. Yttrium [90] provides several benefits for utilization in radioimmunotherapeutic applications: the 64 hour half-life of yttrium [90] is long enough to allow antibody accumulation by tumor and, unlike eg iodine [131], yttrium [90] is a pure beta emitter of high energy with no accompanying gamma irradiation in its decay, with a range in tissue of 100 to 1000 cell diameters. Furthermore, the minimal amount of penetrating radiation allows for outpatient administration of yttrium [90]-labeled antibodies. Furthermore, interalization of labeled antibody is not required for cell killing, and the local emission of ionizing radiation should be lethal for adjacent tumor cells lacking the target antigen.
- One non-therapeutic limitation to yttrium [90] is based upon the absence of significant gamma radiation making imaging therewith difficult. To avoid this problem, a diagnostic “imaging” radionuclide, such as indium [111], can be utilized for determining the location and relative size of a tumor prior to the administration of therapeutic does of yttrium [90]-labeled anti-CD20. Indium [111] is particularly preferred as the diagnostic radionuclide because: between about 1 to about 10 mCi can be safely administered without detectable toxicity; and the imaging data is generally predictive of subsequent yttrium [90]-labeled antibody distribution. Most imaging studies utilize 5mCi indium [111]-labeled antibody because this dose is both safe and has increased imaging efficiency compared with lower doses, with optimal imaging occurring at three to six days after antibody administration. See, for example, Murray J. L., 26J. Nuc. Med. 3328 (1985) and Carraguillo, J. A. et al, 26 J. Nuc. Med. 67 (1985).
- Effective single treatment dosages (ie therapeutically effective amounts) of yttrium [90] labeled anti-CD20 antibodies range from between about 5 and about 75 mCi, more preferably between about 10 and about 40 mCi. Effective single treatment non-marrow ablative dosages of iodine [131] labeled anti-CD20 antibodies range from between about 5 and about 70 mCi, more preferably between about 5 and about 40 mCi. Effective single treatment ablative dosages (ie may require autologous bone marrow transplantation) of iodine [131] labeled anti-CD20 antibodies range from between about 30 and about 600 mCi, more preferably between about 50 and less than about 500 mCi. In conjunction with a chimeric anti-CD20 antibody, owing to the longer circulating half life vis-a-vis murine antibodies, an effective single treatment non-marrow ablative dosages of iodine [131] labeled chimeric anti-CD20 antibodies range from between about 5 and about 40 mCi, more preferably less than about 30 mCi. Imaging criteria for, eg the indium [111] label, are typically less than about 5 mCi.
- With respect to radiolabeled anti-CD20 antibodies, therapy therewith can also occur using a single therapy treatment or using multiple treatments. Because of the radionuclide component, it is preferred that prior to treatment, peripheral stem cells (“PSC”) or bone marrow (“BM”) be “harvested” for patients experiencing potentially fatal bone marrow toxicity resulting from radiation. BM and/or PSC are harvested using standard techniques, and then purged and frozen for possible reinfusion. Additionally, it is most preferred that prior to treatment a diagnostic dosimetry study using a diagnostic labeled antibody (eg using indium [111]) be conducted on the patient, a purpose of which is to ensure that the therapeutically labeled antibody (eg using yttrium [90]) will not become unnecessarily “concentrated” in any normal organ or tissue.
- Chimeric mouse/human antibodies have been described. See, for example, Morrison, S. L. et al.,PNAS I1:6851-6854 (November 1984); European Patent Publication No. 173494; Boulianne, G. L. et al., Nature 312:642 (December 1984); Neubeiger, M. S. et al., Nature 314:268 (March 1985); European Patent Publication No. 125023; Tan et al., J. Immunol. 135:8564 (November 1985); Sun, L. K. et al.,
Hybridoma 5/1:517 (1986); Sahagan et al., J. Immunol. 137:1066-1074 (1986). See generally, Muron, Nature 312:597 (December 1984); Dickson,Genetic Engineering News 5 /3 (March 1985); Marx, Science 229 455 (August 1985); and Morrison Science 229:1202-1207 (September 1985). Robinson et al., in PCT Publication Number WO 88/04936 describe a chimeric antibody with human constant region and murine variable region, having specificity to an epitope of CD20; the murine portion of the chimeric antibody of the Robinson references is derived from the 2H7 mouse monoclonal antibody (gamma 2 b, kappa). While the reference notes that the described chimeric antibody is a “prime candidate” for the treatment of B cell disorders, this statement can be viewed as no more than a suggestion to those in the art to determine whether or not this suggestion is accurate for this particular antibody, particularly because the reference lacks any data to support an assertion of therapeutic effectiveness, and importantly, data using higher order mammals such as primates or humans. - Methodologies for generating chimeric antibodies are available to those in the art. For example, the light and heavy chains can be expressed separately, using, for example, immunoglobulin light chain and immunoglobulin heavy chains in separate plasmids. These can then be purified and assembled in vitro into complete antibodies; methodologies for accomplishing such assembly have been described. See, for example, Scharff, M.,Harvey Lectures 69:125 (1974). In vitro reaction parameters for the formation of IgG antibodies from reduced isolated light and heavy chains have also been described. See, for example, Beychok, S., Cells of Immunoglobulin Synthesis, Academic Press, New York, p. 69, 1979. Co-expression of light and heavy chains in the same cells to achieve intracellular association and linkage of heavy and light chains into complete H2L2 IgG antibodies is also possible. Such co-expression can be accomplished using either the same or different plasmids in the same host cell.
- Another approach, and one which is our most preferred approach for developing a chimeric non-human/human anti-CD20 antibody, is based upon utilization of an expression vector which includes, ab initio, DNA encoding heavy and light chain constant regions from a human source. Such a vector allows for inserting DNA encoding non-human variable region such that a variety of non-human anti-CD20 antibodies can be generated, screened and analyzed for various characteristics (eg type of binding specificity, epitope binding regions, etc.); thereafter, cDNA encoding the light and heavy chain variable regions from a preferred or desired anti-CD20 antibody can be incorporated into the vector. We refer to these types of vectors as Tandem Chimeric Antibody Expression (“TCAE”) vectors. A most preferred TCAE vector which was used to generate immunologically active chimeric anti-CD20 antibodies for therapeutic treatment of lymphomas is
TCAE 8.TCAE 8 is a derivative of a vector owned by the assignee of this patent document, referred to as TCAE 5.2 the difference being that in TCAE 5.2, the translation initiation start site of the dominant selectable marker (neomycin phosphostransferase, “NEO”) is a consensus Kozak sequence, while forTCAE 8, this region is a partially impaired consensus Kozak sequence. Details regarding the impact of the initiation start site of the dominant selectable marker of the TCAE vectors (also referred to as “ANEX vector”) vis-a-vis protein expression are disclosed in detail in the co-pending application filed herewith. -
TCAE 8 comprises four (4) transcriptional cassettes, and these are in tandem order, ie a human immunoglobulin light chain absent a variable region; a human immunoglobulin heavy chain absent a variable region; DHFR; and NEO. Each transcriptional cassette contains its own eukaryotic promoter and polyadenylation region (reference is made to FIG. 1 which is a diagrammatic representation of theTCAE 8 vector). Specifically: - 1) the CMV promoter/enhancer in front of the immunoglobulin heavy chain is a truncated version of the promoter/enhancer in front of the light chain, from the Nhe I site at −350 to the Sst I site at −16 (see, 41Cell 521, 1985).
- 2) a human immunoglobulin light chain constant region was derived via amplification of cDNA by a PCR reaction. In
TCAE 8, this was the human immunoglobulin light chain kappa constant region (Kabat numbering, amino acids 108-214,allotype Km 3, (see, Kabat, E. A. “Sequences of proteins of immunological interest,” NIH Publication, Fifth Ed. No. 91-3242, 1991)), and the human immunoglobulinheavy chain gamma 1 constant region (Kabat numbering amino acids 114-478, allotype Gmla, Gmlz). The light chain was isolated from normal human blood (IDEC Pharmaceuticals Corporation, La Jolla, Calif.); RNA therefrom was used to synthesize cDNA which was then amplified using PCR techniques (primers were derived vis-a-vis the consensus from Kabat). The heavy chain was isolated (using PCR techniques) from cDNA prepared from RNA which was in turn derived from cells transfected with a human IgG1 vector (see, 3 Prot. Eng. 531, 1990; vector pNγ162). Two amino acids were changed in the isolated human IgG1 to match the consensus amino acid sequence from Kabat, to wit: amino acid 225 was changed from valine to alanine (GTT to GCA), and amino acid 287 was changed from methionine to lysine (ATG to AAG); - 3) The human immunoglobulin light and heavy chain cassettes contain synthetic signal sequences for secretion of the immunoglobulin chains;
- 4) The human immunoglobulin light and heavy chain cassettes contain specific DNA restriction sites which allow for insertion of light and heavy immunoglobulin variable regions which maintain the transitional reading frame and do not alter the amino acids normally found in immunoglobulin chains;
- 5) The DHFR cassette contained its own eukaryotic promoter (mouse beta globin major promoter, “BETA”) and polyadenylation region (bovine growth hormone polyadenylation, “BGH”); and
- 6) The NEO cassette contained its own eukaryotic promoter (BETA) and polyadenylation region (SV40 early polyadenylation, “SV”).
- With respect to the
TCAE 8 vector and the NEO cassette, the Kozak region was a partially impaired consensus Kozak sequence (which included an upstream Cla I site):ClaI −3 +1 GGGAGCTTGG ATCCAT ccTct ATG Gtt - (In the TCAE 5.2 vector, the change is between the ClaI and ATG regions, to wit: ccAcc.)
- The complete sequence listing of TCAE 8 (including the specific components of the four transcriptional cassettes) is set forth in FIG. 2 (SEQ. ID. NO. 1).
- As will be appreciated by those in the art, the TCAE vectors beneficially allow for substantially reducing the time in generating the immunologically active chimeric anti-CD20 antibodies. Generation and isolation of non-human light and heavy chain variable regions, followed by incorporation thereof within the human light chain constant transcriptional cassette and human heavy chain constant transcriptional cassette, allows for production of immunologically active chimeric anti-CD20 antibodies.
- We have derived a most preferred non-human variable region with specificity to the CD20 antigen using a murine source and hybridoma technology. Using polymerase chain reaction (“PCR”) techniques, the murine light and heavy variable regions were cloned directly into the
TCAE 8 vector—this is the most preferred route for incorporation of the non-human variable region into the TCAE vector. This preference is principally predicated upon the efficiency of the PCR reaction and the accuracy of insertion. However, other equivalent procedures for accomplishing this task are available. For example, using TCAE 8 (or an equivalent vector), the sequence of the variable region of a non-human anti-CD20 antibody can be obtained, followed by oligonucleotide synthesis of portions of the sequence or, if appropriate, the entire sequence; thereafter, the portions or the entire synthetic sequence can be inserted into the appropriate locations within the vector. Those skilled in the art are credited with the ability to accomplish this task. - Our most preferred immunologically active chimeric anti-CD20 antibodies were derived from utilization of
TCAE 8 vector which included murine variable regions derived from monoclonal antibody to CD20; this antibody (to be discussed in detail, infra), is referred to as “2B8.” The complete sequence of the variable regions obtained from 2B8 in TCAE 8 (“anti-CD20 inTCAE 8”) is set forth in FIG. 3 (SEQ. ID. NO. 2). - The host cell line utilized for protein expression is most preferably of mammalian origin; those skilled in the art are credited with ability to preferentially determine particular host cell lines which are best suited for the desired gene product to be expressed therein. Exemplary host cell lines include, but are not limited to, DG44 and DUXBll (Chinese Hamster Ovary lines, DHFR minus), HELA (human cervical carcinoma), CVI (monkey kidney line), COS (a derivative of CVI with SV40 T antigen), R1610 (Chinese hamster fibroblast) BALBC/3T3 (mouse fibroblast), HAK (hamster kidney line), SP2/O (mouse myeloma), P3×63-Ag3.653 (mouse myeloma), BFA-lclBPT (bovine endothelial cells), RAJI (human lymphocyte) and 293 (human kidney). Host cell lines are typically available from commercial services, the American Tissue Culture Collection or from published literature.
- Preferably the host cell line is either DG44 (“CHO”) or SP2/O. See Urland, G. et al., “Effect of gamma rays and the dihydrofolate reductase locus: deletions and inversions.”Som. Cell & Mol. Gen. 12/6:555-566 (1986), and Shulman, M. et al., “A better cell line for making hybridomas secreting specific antibodies.” Nature 276:269 (1978), respectively. Most preferably, the host cell line is DG44. Transfection of the plasmid into the host cell can be accomplished by any technique available to those in the art. These include, but are not limited to, transfection (including electrophoresis and electroporation), cell fusion with enveloped DNA, microinjection, and infection with intact virus. See, Ridgway, A. A. G. “Mammalian Expression Vectors.” Chapter 24.2, pp. 470-472 Vectors, Rodriguez and Denhardt, Eds. (Butterworths, Boston, Mass. 1988). Most preferably, plasmid introduction into the host is via electroporation.
- The following examples are not intended, nor are they to be construed, as limiting the invention. The examples are intended to evidence: dose-imaging using a radiolabeled anti-CD20 antibody (“I2B8”); radiolabeled anti-CD20 antibody (“Y2B8”); and immunologically active, chimeric anti-CD20 antibody (“C2B8”) derived utilizing a specific vector (“
TCAE 8”) and variable regions derived from murine anti-CD20 monoclonal antibody (“2B8”). - I. RADIOLABELED ANTI-CD20 ANTIBODY 2B8
- A. Anti-CD20 Monoclonal Antibody (Murine) Production (“2B8”)
- BALB/C mice were repeatedly immunized with the human lymphoblastoid cell line SB (see, Adams, R. A. et al., “Direct implantation and serial transplantation of human acute lymphoblastic leukemia in hamsters, SB-2.”Can Res 28:1121-1125 (1968); this cell line is available from the American Tissue Culture Collection, Rockville, Md., under ATCC accession number ATCC CCL 120), with weekly injections over a period of 3-4 months. Mice evidencing high serum titers of anti-CD20 antibodies, as determined by inhibition of known CD20-specific antibodies (anti-CD20 antibodies utilized were Leu 16, Beckton Dickinson, San Jose, Calif., Cat. No. 7670; and Bl, Coulter Corp., Hialeah, Fla., Cat. No. 6602201) were identified; the spleens of such mice were then removed. Spleen cells were fused with the mouse myeloma SP2/0 in accordance with the protocol described in Einfeld, D. A. et al., (1988) EMBO 7:711 (SP2/0 has ATCC accession no. ATCC CRL 8006).
- Assays for CD20 specificity were accomplished by radioimmunoassay. Briefly, purified anti-CD20 Bl was radiolabeled with I125 by the iodobead method as described in Valentine, M. A. et al., (1989) J. Biol. Chem. 264:11282. (I125 Sodium Iodide, ICN, Irvine, Calif., Cat. No. 28665H). Hybridomas were screened by co-incubation of 0.05 ml of media from each of the fusion wells together with 0.05 ml of I125 labeled anti-CD20 Bl (10 ng) in 1% BSA, PBS (pH 7.4), and 0.5 ml of the same buffer containing 100,000 SB cells. After incubation for 1 hr at room temperature, the cells were harvested by transferring to 96 well titer plates (V&P Scientific, San Diego, Calif.), and washed thoroughly. Duplicate wells containing unlabeled anti-CD20 Bl and wells containing no inhibiting antibody were used as positive and negative controls, respectively. Wells containing greater than 50% inhibition were expanded and cloned. The antibody demonstrating the highest inhibition was derived from the cloned cell line designated herein as “2B8.”
- B. Preparation of2B8-MX-DTPA Conjugate
- i. MX-DTPA
- Carbon-14-labeled 1-isothiocyanatobenzyl-3-methyldiethylene triaminepentaacetic acid (“carbon-14 labeled MX-DTPA”) was used as a chelating agent for conjugation of radiolabel to 2B8. Manipulations of MX-DTPA were conducted to maintain metal-free conditions, ie metal-free reagents were utilized and, when possible, polypropylene plastic containers (flasks, beakers, graduated cylinders, pipette tips) washed with Alconox and rinsed with Milli-Q water, were similarly utilized. MX-DTPA was obtained as a dry solid from Dr. Otto Gansow (National Institute of Health, Bethesda, Md.) and stored desiccated at 4° C. (protected from light), with stock solutions being prepared in Milli-Q water at a concentration of 2-5 mM, with storage at −70° C. MX-DTPA was also obtained from Coulter Immunology (Hialeah, Florida) as the disodium salt in water and stored at −70° C.
- ii. Preparation of 2B8
- Purified 2B8 was prepared for conjugation with MX-DTPA by transferring the antibody into metal-free 50 mM bicine-NaOff, pH 8.6, containing 150 mM NaCl, using repetitive buffer exchange with
CENTRICON 30™ spin filters (30,000D, MWCO; Amicon). Generally, 50-200 μL of protein (10 mg/nl) was added to the filter unit, followed by 2 mL of bicine buffer. The filter was centrifuged at 4° C. in a Sorval SS-34 rotor (6,000 rpm, 45 min.). Retentate volume was approximately 50-100 μL; this process was repeated twice using the same filter. Retentate was transferred to a polypropylene 1.5 mL screw cap tube, assayed for protein, diluted to 10.0 mg/mL and stored at 4° C. until utilized; protein was similarly transferred into 50 mM sodium citrate, pH 5.5, containing 150 mM NaCl and 0.05% sodium azide, using the foregoing protocol. - iii. Conjugation of 2B8 with MX-DTPA
- Conjugation of 2B8 with MX-DTPA was performed in polypropylene tubes at ambient temperature. Frozen MX-DTPA stock solutions were thawed immediately prior to use. 50-200 mL of protein at 10 mg/mL were reacted with MX-DTPA at a molar ratio of MX-DTPA-to-2B8 of 4:1. Reactions were initiated by adding the MX-DTPA stock solution and gently mixing; the conjugation was allowed to proceed overnight (14 to 20 hr), at ambient temperature. Unreacted MX-DTPA was removed from the conjugate by dialysis or repetitive ultrafiltration, as described above in Example I.B.ii, into metal-free normal saline (0.9% w/v) containing 0.05% sodium azide. The protein concentration was adjusted to 10 mg/mL and stored at 4° C. in a polypropylene tube until radiolabeled.
- iv. Determination of MX-DTPA Incorporation
- MX-DTPA incorporation was determined by scintillation counting and comparing the value obtained with the purified conjugate to the specific activity of the carbon-[14]-labeled MX-DTPA. For certain studies, in which non-radioactive MX-DTPA (Coulter Immunology) was utilized, MX-DTPA incorporation was assessed by incubating the conjugate with an excess of a radioactive carrier solution of yttrium-[90] of known concentration and specific activity.
- A stock solution of yttrium chloride of known concentration was prepared in metal-free 0.05 N HCl to which carrier-free yttrium-[90] (chloride salt) was added. An aliquot of this solution was analyzed by liquid scintillation counting to determine an accurate specific activity for this reagent. A volume of the yttrium chloride reagent equal to 3-times the number of mols of chelate expected to be attached to the antibody, (typically 2 mol/mol antibody), was added to a polypropylene tube, and the pH adjusted to 4.0-4.5 with 2 M sodium acetate. Conjugated antibody was subsequently added and the mixture incubated 15-30 min. at ambient temperature. The reaction was quenched by adding 20 mM EDTA to a final concentration of 1 mM and the pH of the solution adjusted to approximately
pH 6 with 2M sodium acetate. - After a 5 min. incubation, the entire volume was purified by high-performance, size-exclusion chromatography (described infra). The eluted protein-containing fractions were combined, the protein concentration determined, and an aliquot assayed for radioactivity. The chelate incorporation was calculated using the specific activity of the yttrium-[90] chloride preparation and the protein concentration.
- v. Immunoreactivity of 2B8-MX-DTPA
- The immunoreactivity of conjugated 2B8 was assessed using whole-cell ELISA. Mid-log phase SB cells were harvested from culture by centrifugation and washed two times with 1×HBSS. Cells were diluted to 1-2×106 cells/mL in HBSS and aliquoted into 96-well polystyrene microtiter plates at 50,000-100,000 cells/well. The plates were dried under vacuum for 2 h. at 40-45° C. to fix the cells to the plastic; plates were stored dry at −20° C. until utilized. For assay, the plates were warmed to ambient temperature immediately before use, then blocked with 1×PBS, pH 7.2-7.4 containing 1% BSA (2 h). Samples for assay were diluted in 1×PBS/1% BSA, applied to plates and serially diluted (1:2) into the same buffer. After incubating plates for 1 h. at ambient temperature, the plates were washed three times with 1×PBS. Secondary antibody (goat anti-mouse IgG1-
specific HRP conjugate 50 μL) was added to wells (1:1500 dilution in 1×PBS/1% BSA) and incubated 1 h. at ambient temperature. Plates were washed four times with 1×PBS followed by the addition of ABTS substrate solution (50 mM sodium citrate, pH 4.5 containing 0.01% ATBS and 0.001% H2O2). Plates were read at 405 nm after 15-30 min. incubation. Antigen-negative HSB cells were included in assays to monitor non-specific binding. Immunoreactivity of the conjugate was calculated by plotting the absorbance values vs. the respective dilution factor and comparing these to values obtained using native antibody (representing 100% immunoreactivity) tested on the same plate; several values on the linear portion of the titration profile were compared and a mean value determined (data not shown). - vi. Preparation of Indium-[111]-Labeled 2B8-MX-DTPA (“I2B8”)
- Conjugates were radiolabeled with carrier-free indium-[111]. An aliquot of isotope (0.1-2 mCi/mg antibody) in 0.05 M HCL was transferred to a polypropylene tube and approximately one-tenth volume of metal-free 2 M HCl added. After incubation for 5 min., metal-free 2 M sodium acetate was added to adjust the solution to pH 4.0-4.4. Approximately 0.5 mg of 2B8-MX-DTPA was added from a stock solution of 10.0 mg/mL DTPA in normal saline, or 50 mM sodium citrate/150 mM NaCl containing 0.05% sodium azide, and the solution gently mixed immediately. The pH solution was checked with pH paper to verify a value of 4.0-4.5 and the mixture incubated at ambient temperature for 15-30 min. Subsequently, the reaction was quenched by adding 20 mM EDTA to a final concentration of 1 mM and the reaction mixture was adjusted to approximately pH 6.0 using 2 M sodium acetate.
- After a 5-10 min. incubation, uncomplexed radioisotope was removed by size-exclusion chromatography. The HPLC unit consisted of
Waters Model 6000 or TosoHaas Model TSK-6110 solvent delivery system fitted, respectively, with a Waters U6K orRheodyne 700 injection valve. Chromatographic separations were performed using a gel permeation column (BioRad SEC-250; 7.5×300 mm or comparable TosoHaas column) and a SEC-250 guard column (7.5×100 mm). The system was equipped with a fraction collector (Pharmacia Frac200) and a UV monitor fitted with a 280 nm filter (Pharmacia model TV-1). Samples were applied and eluted isocratically using 1×PBS, pH 7.4, at 1.0 mL/min flow rate. One-half milliliter fractions were collected in glass tubes and aliquots of these counted in a gamma counter. The lower and upper windows were set to 100 and 500 KeV respectively. - The radioincorporation was calculated by summing the radioactivity associated with the eluted protein peak and dividing this number by the total radioactivity eluted from the column; this value was then expressed as a percentage (data not shown). In some cases, the radioincorporation was determined using instant thin-layer chromatography (“ITLC”). Radiolabeled conjugate was diluted 1:10 or 1:20 in 1×PBS containing or 1×PBS/1 mM DTPA, then 1 μL was spotted 1.5 cm from one end of a 1×5 cm strip of ITLC SG paper. The paper was developed by ascending chromatography using 10% ammonium acetate in methanol:water (1:1;v/v). The strip was dried, cut in half crosswise, and the radioactivity associated with each section determined by gamma counting. The radioactivity associated with the bottom half of the strip (protein-associated radioactivity) was expressed as a percentage of the total radioactivity, determined by summing the values for both top and bottom halves (data not shown).
- Specific activities were determined by measuring the radioactivity of an appropriate aliquot of the radiolabeled conjugate. This value was corrected for the counter efficiency (typically 75%) and related to the protein concentration of the conjugate, previously determined by absorbance at 280 nm, and the resulting value expressed as mCi/mg protein.
- For some experiments, 2B8-MX-DTPA was radiolabeled with indium [111] following a protocol similar to the one described above but without purification by HPLC; this was referred to as the “mix-and-shoot” protocol.
- vii. Preparation of Yttrium-[90]-Labeled 2B8-MX-DTPA (“Y2B8”)
- The same protocol described for the preparation of I2B8 was followed for the preparation of the yttrium-[90]-labeled 2B8-MX-DTPA (“Y2B8”) conjugate except that 2 ng HCl was not utilized; all preparations of yttrium-labeled conjugates were purified by size-exclusion chromatography as described above.
- C. Non-Human Animal Studies.
- i. Biodistribution of Radiolabeled 2B8-MX-DTPA
- I2B8 was evaluated for tissue biodistribution in six-to-eight week old BALB/c mice. The radiolabeled conjugate was prepared using clinical-grade 2B8-MX-DTPA following the “mix and shoot” protocol described above. The specific activity of the conjugate was 2.3 mCi/mg and the conjugate was formulated in PBS, pH 7.4 containing 50mg/mL HSA. Mice were injected intravenously with 100 μL of I2B8 (approximately 21 μCi) and groups of three mice were sacrificed by cervical dislocation at 0, 24, 48, and 72 hours. After sacrifice, the tail, heart, lungs, liver, kidney, spleen, muscle, and femur were removed, washed and weighed; a sample of blood was also removed for analysis. Radioactivity associated with each specimen was determined by gamma counting and the present injected dose per gram tissue subsequently determined. No attempt was made to discount the activity contribution represented by the blood associated with individual organs.
- In a separate protocol, aliquots of 2B8-MX-DTPA incubated at 4° C. and 30° C. for 10 weeks were radiolabeled with indium-[111] to a specific activity of 2.1 mCi/mg for both preparations. These conjugates were then used in biodistribution studies in mice as described above.
- For dosimetry determinations, 2B8-MX-DTPA was radiolabeled with indium-[111] to a specific activity of 2.3 mCi/mg and approximately 1.1 μCi was injected into each of 20 BALB/c mice. Subsequently, groups of five mice each were sacrificed at 1, 24, 48 and 72 hours and their organs removed and prepared for analysis. In addition, portions of the skin, muscle and bone were removed and processed for analysis; the urine and feces were also collected and analyzed for the 24-72 hour time points.
- Using a similar approach, 2B8-MX-DTPA was also radiolabeled with yttrium-[90] and its biological distribution evaluated in BALB/c mice over a 72-hour time period. Following purification by HPLC size exclusion chromatography, four groups of five mice each were injected intravenously with approximately 1 μCi of clinically-formulated conjugate (specific activity:12.2 mCi/mg); groups were subsequently sacrificed at 1, 24, 48 and 72 hours and their organs and tissues analyzed as described above. Radioactivity associated with each tissue specimen was determined by measuring bremstrahlung energy with a gamma scintillation counter. Activity values were subsequently expressed as percent injected dose per gram tissue or percent injected dose per organ. While organs and other tissues were rinsed repeatedly to remove superficial blood, the organs were not perfused. Thus, organ activity values were not discounted for the activity contribution represented by internally associated blood.
- ii. Tumor Localization of I2B8
- The localization of radiolabeled 2B8-MX-DTPA was determined in athymic mice bearing Ramos B cell tumors. Six-to-eight week old athymic mice were injected subcutaneously (left-rear flank) with 0.1 mL of RPMI-1640 containing 1.2×107 Ramos tumor cells which had been previously adapted for growth in athymic mice. Tumors arose within two weeks and ranged in weight from 0.07 to 1.1 grams. Mice were injected intravenously with 100 μL of indium-[111]-labeled 2B8-MX-DTPA (16.7 μCi) and groups of three mice were sacrificed by cervical dislocation at 0, 24, 48, and 72 hours. After sacrifice the tail, heart, lungs, liver, kidney, spleen, muscle, femur, and tumor were removed, washed, weighed; a sample of blood was also removed for analysis. Radioactivity associated with each specimen was determined by gamma counting and the percent injected dose per gram tissue determined.
- iii. Biodistribution and Tumor Localization Studies with Radiolabeled 2B8-MX-DTPA
- Following the preliminary biodistribution experiment described above (Example I.B.viii.a.), conjugated 2B8 was radiolabeled with indium-[111] to a specific activity of 2.3 mCi/mg and roughly 1.1 μCi was injected into each of twenty BALB/c mice to determine biodistribution of the radiolabeled material. Subsequentially, groups of five mice each were sacrificed at 1, 24, 48 and 72 hours and their organs and a portion of the skin, muscle and bone were removed and processed for analysis. In addition, the urine and feces were collected and analyzed for the 24-72 hour time-points. The level of radioactivity in the blood dropped from 40.3% of the injected dose per gram at 1 hour to 18.9% at 72 hours (data not shown). Values for the heart, kidney, muscle and spleen remained in the range of 0.7-9.8% throughout the experiment. Levels of radioactivity found in the lungs decreased from 14.2% at 1 hour to 7.6% at 72 hours; similarly the respective liver injected-dose per gram values were 10.3% and 9.9%. These data were used in determining radiation absorbed dose estimates I2B8 described below.
- The biodistribution of yttrium-[90]-labeled conjugate, having a specific activity of 12.2 mCi/mg antibody, was evaluated in BALB/c mice. Radioincorporations of >90% were obtained and the radiolabeled antibody was purified by HPLC. Tissue deposition of radioactivity was evaluated in the major organs, and the skin, muscle, bone, and urine and feces over 72 hours and expressed as percent injected dose/g tissue. Results (not shown) evidenced that while the levels of radioactivity associated with the blood dropped from approximately 39.2% injected dose per gram at 1 hour to roughly 15.4% after 72 hours the levels of radioactivity associated with tail, heart, kidney, muscle and spleen remained fairly constant at 10.2% or less throughout the course of the experiment. Importantly, the radioactivity associated with the bone ranged from 4.4% of the injected dose per gram bone at 1 hour to 3.2% at 72 hours. Taken together, these results suggest that little free yttrium was associated with the conjugate and that little free radiometal was released during the course of the study. These data were used in determining radiation absorbed dose estimates for Y2B8 described below.
- For tumor localization studies, 2B8-MX-DTPA was prepared and radiolabeled with111Indium to a specific activity of 2.7 mCi/mg. One hundred microliters of labeled conjugate (approximately 24 μCi) were subsequently injected into each of 12 athymic mice bearing Ramos B cell tumors. Tumors ranged in weight from 0.1 to 1.0 grams. At time points of 0, 24, 48, and 72 hours following injection, 50 μL of blood was removed by retro-orbital puncture, the mice sacrificed by cervical dislocation, and the tail, heart, lungs, liver, kidney, spleen, muscle, femur, and tumor removed. After processing and weighing the tissues, the radioactivity associated with each tissue specimen was determined using a gamma counter and the values expressed as percent injected dose per gram.
- The results (not shown) evidenced that the tumor concentrations of the111In-2B8-MX-DTPA increased steadily throughout the course of the experiment. Thirteen percent of the injected dose was accumulated in the tumor after 72 hours. The blood levels, by contrast, dropped during the experiment from over 30% at time zero to 13% at 72 hours. All other tissues (except muscle) contained between 1.3 and 6.0% of the injected dose per gram tissue by the end of the experiment; muscle tissue contained approximately 13% of the injected dose per gram.
- D. Human Studies
- i. 2B8 and 2B8-MX-DTPA: Immunohistology Studies with Human Tissues
- The tissue reactivity of murine monoclonal antibody 2B8 was evaluated using a panel of 32 different human tissues fixed with acetone. Antibody 2B8 reacts with the anti-CD20 antigen which had a very restricted pattern of tissue distribution, being observed only in a subset of cells in lymphoid tissues including those of hematopoietic origin.
- In the lymph node, immunoreactivity was observed in a population of mature cortical B-lymphocytes as well as proliferating cells in the germinal centers. Positive reactivity was also observed in the peripheral blood, B-cell areas of the tonsils, white pulp of the spleen, and with 40-70% of the medullary lymphocytes found in the thymus. Positive reactivity was also seen in the follicles of the lamina propria (Peyer's Patches) of the large intestines. Finally, aggregates or scattered lymphoid cells in the stroma of various organs, including the bladder, breast, cervix, esophagus, lung, parotid, prostate, small intestine, and stomach, were also positive with antibody 2B8 (data not shown).
- All simple epithelial cells, as well as the stratified epithelia and epithelia of different organs, were found to be unreactive. Similarly, no reactivity was seen with neuroectodermal cells, including those in the brain, spinal cord and peripheral nerves. Mesenchymal elements, such as skeletal and smooth muscle cells, fibroblasts, endothelial cells, and polymorphonuclear inflammatory cells were also found to be negative (data not shown).
- The tissue reactivity of the 2B8-MX-DTPA conjugate was evaluated using a panel of sixteen human tissues which had been fixed with acetone. As previously demonstrated with the native antibody (data not shown), the 2B8-MX-DTPA conjugate recognized the CD20 antigen which exhibited a highly restricted pattern of distribution, being found only on a subset of cells of lymphoid origin. In the lymph node, immunoreactivity was observed in the B cell population. Strong reactivity was seen in the white pulp of the spleen and in the medullary lymphocytes of the thymus. Immunoreactivity was also observed in scattered lymphocytes in the bladder, heart, large intestines, liver, lung, and uterus, and was attributed to the presence of inflammatory cells present in these tissues. As with the native antibody, no reactivity was observed with neuroectodermal cells or with mesenchymal elements (data not shown).
- ii. Clinical Analysis of I2B8 (Imaging) and Y2B8 (Therapy)
- a. Phase I/II Clinical Trial Single Dose Therapy Study
- A Phase I/II clinical analysis of I2B8 (imaging) followed by treatment with a single therapeutic dose of Y2B8 is currently being conducted. For the single-dose study, the following schema is being followed:
- 1. Peripheral Stem Cell (PSC) or Bone Marrow (BM) Harvest with Purging;
- 2. I2B8 Imaging;
- 3. Y2B8 Therapy (three Dose Levels); and
- 4. PSC or Autologous BM Transplantation (if necessary based upon absolute neutrophil count below 500/mm3 for three consecutive days or platelets below 20,000/mm3 with no evidence of marrow recovery on bone marrow examination).
- The Dose Levels of Y2B8 are as follows:
Dose Level Dose (mCi) 1. 20 2. 30 3. 40 - Three patients are to be treated at each of the dose levels for determination of a Maximum Tolerated Dose (“MTD”).
- Imaging (Dosimetry) Studies are conducted as follows: each patient is involved in two in vivo biodistribution studies using I2B8. In the first study, 2 mg of I2B8 (5 mCi), is administered as an intravenous (i.v.) infusion over one hour; one week later 2B8 (ie unconjugated antibody) is administered by i.v. at a rate not to exceed 250 mg/hr followed immediately by 2 mg of I2B8 (5 mCi) administered by i.v. over one hour. In both studies, immediately following the I2B8 infusion, each patient is imaged and imaging is repeated at time t=14-18 hr (if indicated), t=24 hr; t=72 hr; and t=96 hr (if indicated). Whole body average retention times for the indium [111] label are determined; such determinations are also made for recognizable organs or tumor lesions (“regions of interest”).
- The regions of interest are compared to the whole body concentrations of the label; based upon this comparison, an estimate of the localization and concentration of Y2B8 can be determined using standard protocols. If the estimated cumulative dose of Y2B8 is greater than eight (8) times the estimated whole body dose, or if the estimated cumulative dose for the liver exceeds 1500 cGy, no treatment with Y2B8 should occur.
- If the imaging studies are acceptible, either 0.0 or 1.0 mg/kg patient body weight of 2B8 is administered by i.v. infusion at a rate not to exceed 250 mg/h. This is followed by administration of Y2B8 (10,20 or 400 mCi) at an i.v. infusion rate of 20 mCi/hr.
- b. Phase I/II Clinical Trial: Multiple Dose Therapy Study
- A Phase I/II clinical analysis of of Y2B8 is currently being conducted. For the multiple-dose study, the following schema is being followed:
- 1. PSC or BM Harvest;
- 2. I2B8 Imaging;
- 3. Y2B8 Therapy (three Dose Levels) for four doses or a total cumulative dose of 80 mCi; and
- 4. PSC or Autologous BM Transplantation (based upon decision of medical practitioner).
- The Dose Levels of Y2B8 are as follows:
Dose Level Dose (mCi) 1. 10 2. 15 3. 20 - Three patients are to be treated at each of the dose levels for determination of an MTD.
- Imaging (Dosimetry) Studies are conducted as follows: A preferred imaging dose for the unlabeled antibody (ie 2B8) will be determined with the first two patients. The first two patients will receive 100 mg of unlabeled 2B8 in 250 cc of normal saline over 4 hrs followed by 0.5 mCi of I2B8—blood will be sampled for biodistribution data at times t=0, t=10 min., t=120 min., t=24 hr, and t=48 hr. Patients will be scanned with multiple regional gamma camera images at times t=2 hr, t=24 hr and t=48 hr. After scanning at t=48 hr, the patients will receive 250 mg of 2B8 as described, followed by 4.5 mCi of I2B8—blood and scanning will then follow as described. If 100 mg of 2B8 produces superior imaging, then the next two patients will receive 50 mg of 2B8 as described, followed by 0.5 mCi of I2B8 followed 48 hrs later by 100 mg 2B8 and then with 4.5 mCi of I2B8. If 250 mg of 2B8 produces superior imaging, then the next two patients will receive 250 mg of 2B8 as described, followed by 0.5 mCi of I2B8 followed 48 hrs later with 500 mg 2B8 and then with 4.5 mCi of I2B8. Subsequent patients will be treated with the lowest amount of 2B8 that provides optimal imaging. Optimal imaging will be defined by: (1) best effective imaging with the slowest disappearance of antibody; (2) best distribution minimizing compartmentalization in a single organ; and (3) best subjective resolution of the lesion (tumor/background comparison).
- For the first four patients, the first therapeutic dose of Y2B8 will begin 14 days after the last dose of I2B8; for subsequent patients, the first therapeutic dose of Y2B8 will begin between two to seven days after the I2B8.
- Prior to treatment with Y2B8, for the patients other than the first four, 2B8 will be administered as described, followed by i.v. infusion of Y2B8 over 5-10 min. Blood will be sampled for biodistribution at times t=0, t=10 min., t=120 min., t=24 hr and t=48 hr. Patients will receive repetitive doses of Y2B8 (the same dose administered as with the first dose) approximately every six to eight weeks for a maximum of four doses, or total cumulative dose of 80 mCi. It is most preferred that patients not receive a subsequent dose of Y2B8 until the patients' WBC is greater than/equal to 3,000 and AGC is greater than/equal to 100,000.
- Following completion of the three-dose level study, an MTD will be defined. Additional patients will then be enrolled in the study and these will receive the MTD.
- A. Construction of Chimeric Anti-CD20 Immunoglobulin DNA Expression Vector
- RNA was isolated from the 2B8 mouse hybridoma cell (as described in Chomczynki, P. et al., “Single step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction.”Anal. Biochem. 162:156-159 (1987)). and cDNA was prepared therefrom. The mouse immunoglobulin light chain variable region DNA was isolated from the cDNA by polymerase chain reaction using a set of DNA primers with homology to mouse light chain signal sequences at the 5′ end and mouse light chain J region at the 3′ end. Primer sequences were as follows:
- 1.
VL Sense (SEQ. ID. NO.3) 5′ ATC AC AGATCT CTC ACC ATG GAT TTT CAG GTG CAG ATT ATC AGC TTC 3′ - (The underlined portion is a Bgl II site; the above-lined portion is the start codon.)
- 2.
VL Antisense (SEQ. ID. NO.4) 5′ TGC AGC ATC CGTACG TTT GAT TTC CAG CTT 3′ - (The underlined portion is a Bsi WI site.)
- See, FIGS. 1 and 2 for the corresponding Bgl II and Bsi WI sites in
TCAE 8, and FIG. 3 for the corresponding sites in anti-CD20 inTCAE 8. - These resulting DNA fragment was cloned directly into the
TCAE 8 vector in front of the human kappa light chain constant domain and sequenced. The determined DNA sequence for the murine variable region light chain is set forth in FIG. 4 (SEQ. ID. NO. 5); see also FIG. 3,nucleotides 978 through 1362. FIG. 4 further provides the amino acid sequence from this murine variable region, and the CDR and framework regions. The mouse light chain variable region from 2B8 is in the mouse kappa VI family. See, Kabat, supra. - The mouse heavy chain variable region was similarly isolated and cloned in front of the human IgGl constant domains. Primers were as follows:
1. VH Sense (SEQ. ID. NO.6) 5′ GCG GCT CCC ACGCGT GTC CTG TCC CAG 3′ - (The underlined portion is an Mlu I site.)
2. VH Antisense (SEQ. ID. NO.7) 5′ GG(G/C) TGT TGT GCTAGC TG(A/C) (A/G)GA GAC (G/A) GT GA 3′ - (The underlined portion is an Nhe I site.)
- See, FIGS. 1 and 2 for corresponding Mlu I and Nhe I sites in
TCAE 8, and FIG. 3 for corresponding sites in anti-CD20 inTCAE 8. - The sequence for this mouse heavy chain is set forth in FIG. 5 (SEQ. ID. NO. 8); see also FIG. 3, nucleotide 2401 through 2820. FIG. 5 also provides the amino acid sequence from this murine variable region, and the CDR and framework regions. The mouse heavy chain variable region from 2B8 is in the mouse VH 2B family. See, Kabat, supra.
- B. Creation of Chimeric Anti-CD20 Producing CHO and SP2/0 Transfectomas
- Chinese hamster ovary (“CHO”) cells DG44 were grown in SSFM II minus hypoxanthine and thymidine media (Gibco, Grand Island, N.Y., Form No. 91-0456PK); SP2/0 mouse myeloma cells were grown in Dulbecco's Modified Eagles Medium media (“DMEM”) (Irvine Scientific, Santa Ana, Calif., Cat. No. 9024) with 5% fetal bovine serum and 20 ml/L glutamine added. Four million cells were electroporated with either 25 μg CHO or 50 μg SP2/0 plasmid DNA that had been restricted with Not I using a
BTX 600 electroporation system (BTX, San Diego, Calif.) in 0.4 ml disposable cuvettes. Conditions were either 210 volts for CHO or 180 volts for SP2/0, 400 microfaradays, 13 ohms. Each electroporation was plated into six 96 well dishes (about 7,000 cells/well). Dishes were fed with media containing G418 (GENETICIN, Gibco, Cat. No.860-1811) at 400 μg/ml active compound for CHO (media further included 50 μM hypoxanthine and 8 μM thymidine) or 800 μg/ml for SP2/0, two days following electroporation and thereafter 2 or 3 days until colonies arose. Supernatant from colonies was assayed for the presence of chimeric immunoglobulin via an ELISA specific for human antibody. Colonies producing the highest amount of immunoglobulin were expanded and plated into 96 well plates containing media plus methotrexate (25 nM for SP2/0 and 5 nM for CHO) and fed every two or three days. Supernatants were assayed as above and colonies producing the highest amount of immunoglobulin were examined. Chimeric anti-CD20 antibody was purified from supernatant using protein A affinity chromatography. - Purified chimeric anti-CD20 was analyzed by electrophoresis in polyacrylamide gels and estimated to be greater than about 95% pure. Affinity and specificity of the chimeric antibody was determined based upon 2B8. Chimeric anti-CD20 antibody tested in direct and competitive binding assays, when compared to murine anti-CD20 monoclonal antibody 2B8, evidenced comparable affinity and specificity on a number of CD20 positive B cells lines (data not presented). The apparent affinity constant (“Kap”) of the chimeric antibody was determined by direct binding of I125 radiolabeled chimeric anti-CD20 and compared to radiolabeled 2B8 by Scatchard plot; estimated Kap for CHO produced chimeric anti-CD20 was 5.2×10−9 M and for SP2/0 produced antibody, 7.4×10−9M. The estimated Kap for 2B8 was 3.5×10−9 M. Direct competition by radioimmunoassay was utilized to confirm both the specificity and retention of immunoreactivity of the chimeric antibody by comparing its ability to effectively compete with 2B8. Substantially equivalent amounts of chimeric anti-CD20 and 2B8 antibodies were required to produce 50% inhibition of binding to CD20 antigens on B cells (data not presented), ie there was a minimal loss of inhibiting activity of the anti-CD20 antibodies, presumably due to chimerization.
- The results of Example II.B indicate, inter alia, that chimeric anti-CD20 antibodies were generated from CHO and SP2/0 transfectomas using the
TCAE 8 vectors, and these chimeric antibodies had substantially the same specificity and binding capability as murine anti-CD20 monoclonal antibody 2B8. - C. Determination of Immunological Activity of Chimeric Anti-CD20 Antibodies
- i. Human C1q Analysis
- Chimeric anti-CD20 antibodies produced by both CHO and SP2/0 cell lines were evaluated for human C1q binding in a flow cytometry assay using fluorescein labeled C1q (C1q was obtained from Quidel, Mira Mesa, Calif., Prod. No. A400 and FITC label from Sigma, St. Louis Mo., Prod. No. F-7250; FITC. Labeling of C1q was accomplished in accordance with the protocol described inSelected Methods In Cellular Immunology, Michell & Shiigi, Ed. (W. H. Freeman & Co., San Francisco, Calif., 1980, p. 292). Analytical results were derived using a Becton Dickinson FACScan™ flow cytometer (fluorescein measured over a range of 515-545 nm). Equivalent amounts of chimeric anti-CD20 antibody, human IgG1,K myeloma protein (Binding Site, San Diego, Calif., Prod. No. BP078), and 2B8 were incubated with an equivalent number of CD20-positive SB cells, followed by a wash step with FACS buffer (0.2% BSA in PBS, pH 7.4, 0.02% sodium azide) to remove unattached antibody, followed by incubation with FITC labeled C1q. Following a 30-60 min. incubation, cells were again washed. The three conditions, including FITC-labeled C1q as a control, were analyzed on the FACScan™ following manufacturing instructions. Results are presented in FIG. 6.
- As the results of FIG. 6 evidence, a significant increase in fluorescence was observed only for the chimeric anti-CD20 antibody condition; ie only SB cells with adherent chimeric anti-CD20 antibody were C1q positive, while the other conditions produced the same pattern as the control.
- ii. Complement Dependent Cell Lyses
- Chimeric anti-CD20 antibodies were analyzed for their ability to lyse lymphoma cell lines in the presence of human serum (complement source). CD20 positive SB cells were labeled with51Cr by admixing 100 μ Ci of 51Cr with 1×106 SB cells for 1 hr at 37° C.; labeled SB cells were then incubated in the presence of equivalent amounts of human complement and equivalent amounts (0-50 μg/ml) of either chimeric anti-CD20 antibodies or 2B8 for 4 hrsat 37° C. (see, Brunner. K. T. et al., “Quantitative assay of the lytic action of immune lymphoid cells on 51Cr-labeled allogeneic target cells in vitro.” Immunology 14:181-189 (1968). Results are presented in FIG. 7.
- The results of FIG. 7 indicate, inter alia, that chimeric anti-CD20 antibodies produced significant lysis (49%) under these conditions.
- iii. Antibody Dependent Cellular Cytotoxicity Effector Assay
- For this study, CD20 positive cells (SB) and CD20 negative cells (T cell leukemia line HSB; see, Adams, Richard, “Formal Discussion,”Can. Res. 27:2479-2482 (1967); ATCC deposit no. ATCC CCL 120.1) were utilized; both were labeled with 51Cr. Analysis was conducted following the protocol described in Brunner, K. T. et al., “Quantitative assay of the lytic action of immune lymphoid cells on 51Cr-labeled allogeneic target cells in vitro; inhibition by isoantibody and drugs.” Immunology 14:181-189 (1968); a substantial chimeric anti-CD20 antibody dependent cell mediated lysis of CD20 positive SB target cells (51Cr-labeled) at the end of a 4 hr, 37° C. incubation, was observed and this effect was observed for both CHO and SP2/0 produced antibody (effector cells were human peripheral lymphocytes; ratio of effector cells:target was 100:1). Efficient lysis of target cells was obtained at 3.9 μg/ml. In contrast, under the same conditions, the murine anti-CD20 monoclonal antibody 2B8 had a statistically insignificant effect, and CD20 negative HSB cells were not lysed. Results are presented in FIG. 8.
- The results of Example II indicate, inter alia, that the chimeric anti-CD20 antibodies of Example I were immunologically active.
- A. Non-Human Primate Study
- Three separate non-human primate studies were conducted. For convenience, these are referred to herein as “Chimeric Anti-CD20: CHO & SP2/0;” “Chimeric Anti-CD20: CHO;” and “High Dosage Chimeric Anti-CD20.” Conditions were as follows:
- Chimeric Anti-CD20: CHO & SP2/0
- Six cynomolgus monkeys ranging in weight from 4.5 to 7 kilograms (White Sands Research Center, Alamogordo, N.Mex.) were divided into three groups of two monkeys each. Both animals of each group received the same dose of immunologically active chimeric anti-CD20 antibody. One animal in each group received purified antibody produced by the CHO transfectoma; the other received antibody produced by the SP2/0 transfectoma. The three groups received antibody dosages corresponding to 0.1 mg/kg, 0.4 mg/kg, and 1.6 mg/kg each day for four (4) consecutive days. The chimeric immunologically active anti-CD20 antibody, which was admixed with sterile saline, was administered by intravenous infusion; blood samples were drawn prior to each infusion. Additional blood samples were drawn beginning 24 hrs after the last injection (T=O) and thereafter on
days day 90. - Approximately 5 ml of whole blood from each animal was centrifuged at 2000 RPM for 5 min. Plasma was removed for assay of soluble chimeric anti-CD20 antibody levels. The pellet (containing peripheral blood leukocytes and red blood cells) was resuspended in fetal calf serum for fluorescent-labeled antibody analysis (see, “Fluorescent Antibody Labeling of Lymphoid Cell Population,” infra.).
- Chimeric Anti-CD20: CHO
- Six cynomolgus monkeys ranging in weight from 4 to 6 kilograms (White Sands) were divided into three groups of two monkeys each. All animals were injected with immunologically active chimeric anti-CD20 antibodies produced from the CHO transfectoma (in sterile saline). The three groups were separated as follows:
subgroup 1 received daily intravenous injections of 0.01 mg/kg of the antibody over a four (4) day period;subgroup 2 received daily intravenous injections of 0.4 mg/kg of the antibody over a four (4) day period;subgroup 3 received a single intravenous injection of 6.4 mg/kg of the antibody. For all three subgroups, a blood sample was obtained prior to initiation of treatment; additionally, blood samples were also drawn at T=0, 1, 3, 7, 14 and 28 days following the last injection, as described above, and these samples were processed for fluorescent labeled antibody analysis (see, “Fluorescent Antibody Labeling,” infra.). In addition to peripheral blood B cell quantitation, lymph node biopsies were taken atdays 7, 14 and 28 following the last injection, and a single cell preparation stained for quantitation of lymphocyte populations by flow cytometry. - High Dosage Chimeric Anti-CD20
- Two cynomolgus monkeys (White Sands) were infused with 16.8 mg/kg of the immunologically active chimeric anti-CD20 antibodies from the CHO transfectomas (in sterile saline) weekly over a period of four consecutive weeks. At the conclusion of the treatment, both animals were anesthetized for removal of bone marrow; lymph node biopsies were also taken. Both sets of tissue were stained for the presence of B lymphocytes using Leu 16 by flow cytometry following the protocol described in Ling, N. R. et al., “B-cell and plasma cell antigens.”Leucocyte Typing III White Cell Differentiations Antigens, A. J. McMichael, Ed. (Oxford University Press, Oxford UK, 1987), p. 302.
- Fluorescent Antibody Labeling of Lymphoid Cell Population
- After removal of plasma, leukocytes were washed twice with Hanks Balanced Salt Solution (“HBSS”) and resuspended in a plasma equivalent volume of fetal bovine serum (heat inactivated at 56° C. for 30 min.). A 0.1 ml volume of the cell preparation was distributed to each of six (6), 15 ml conical centrifuge tubes Fluorescein labeled monoclonal antibodies with specificity for the human lymphocyte surface markers CD2 (AMAC, Westbrook, Me.), CD20 (Becton Dickinson) and human IgM (Binding Site, San Diego, Calif.) were added to 3 of the tubes for identifying T and B lymphocyte populations. All reagents had previously tested positive to the corresponding monkey lymphocyte antigens. Chimeric anti-CD20 antibody bound to monkey B cell surface CD20 was measured in the fourth tube using polyclonal goat anti-human IgG coupled with phycoerythrin (AMAC). This reagent was pre-adsorbed on a monkey Ig-sepharose column to prevent cross-reactivity to monkey Ig, thus allowing specific detection and quantitation of chimeric anti-CD20 antibody bound to cells. A fifth tube included both anti-IgM and anti-human IgG reagents for double stained B cell population. A sixth sample was included with no reagents for determination of autofluorescence. Cells were incubated with fluorescent antibodies for 30 min., washed and fixed with 0.5 ml of fixation buffer (0.15 M NaCl, 1% paraformaldehyde, pH7.4) and analyzed on a Becton Dickinson FACScan™ instrument. Lymphocyte populations were initially identified by forward versus right angle light scatter in a dot-plot bitmap with unlabeled leucocytes. The total lymphocyte population was then isolated by gating out all other events. Subsequent fluorescence measurements reflected only gated lymphocyte specific events.
- Depletion of Peripheral Blood B Lymphocytes
- No observable difference could be ascertained between the efficacy of CHO and SP2/0 produced antibodies in depleting B cells in vivo, although a slight increase in B cell recovery beginning after
day 7 for monkeys injected with chimeric anti-CD20 antibodies derived from CHO transfectomas at dosage levels 1.6 mg/kg and 6.4 mg/kg was observed and for the monkey injected with SP2/0 producing antibody at the 0.4 mg/kg dose level. FIGS. 9A, B and C provide the results derived from the chimeric anti-CD20:CHO & SP2/0 study, with FIG. 9A directed to the 0.4 mg/kg dose level; FIG. 9B directed to the 1.6 mg/kg dose level; and FIG. 9C directed to the 6.4 mg/kg dose level. - As is evident from FIG. 9, there was a dramatic decrease (>95%) in peripheral B cell levels after the therapeutic treatment across all tested dose ranges, and these levels were maintained up to seven (7) days post infusion; after this period, B cell recovery began, and, the time of recovery initiation was independent of dosage levels.
- In the Chimeric Anti-CD20:CHO study, a 10-fold lower antibody dosage concentration (0.01 mg/kg) over a period of four daily injections (0.04 mg/kg total) was utilized. FIG. 10 provides the results of this study. This dosage depleted the peripheral blood B cell population to approximately 50% of normal levels estimated with either the anti-surface IgM or the Leu 16 antibody. The results also indicate that saturation of the CD20 antigen on the B lymphocyte population was not achieved with immunologically active chimeric anti-CD20 antibody at this dose concentration over this period of time for non-human primates; B lymphocytes coated with the antibody were detected in the blood samples during the initial three days following therapeutic treatment. However, by
day 7, antibody coated cells were undetectable. - Table I summarizes the results of single and multiple doses of immunologically active chimeric anti-CD20 antibody on the peripheral blood populations; single dose condition was 6.4 mg/kg; multiple dose condition was 0.4 mg/kg over four (4) consecutive days (these results were derived from the monkeys described above).
TABLE I PERIPHERAL BLOOD POPULATION FROM C2B8 PRIMATE STUDY Monkey Dose Day CD2 Anti-Hu IgG A 0.4 mg/kg Prebleed 81.5 — (4 doses) 0 86.5 0.2 7 85.5 0.0 21 93.3 — 28 85.5 — B 0.4 mg/kg Prebleed 81.7 — (4 doses) 0 94.6 0.1 7 92.2 0.1 21 84.9 — 28 84.1 — C 6.4 mg/kg Prebleed 77.7 0.0 (1 dose) 7 85.7 0.1 21 86.7 — 28 76.7 — D 6.4 mg/kg Prebleed 85.7 0.1 (1 dose) 7 94.7 0.1 21 85.2 — 28 85.9 — Anti-Hu IgG + Monkey Anti-Hu IgM* Leu-16 % B Cell Depletion A — 9.4 0 0.3 0.0 97 0.1 1.2 99 — 2.1 78 — 4.1 66 B — 14.8 0 0.2 0.1 99 0.1 0.1 99 — 6.9 53 — 8.7 41 C 0.2 17.0 0 0.1 0.0 99 — 14.7 15 — 8.1 62 D 0.1 14.4 0 0.2 0.0 99 — 9.2 46 — 6.7 53 - The data summarized in Table I indicates that depletion of B cells in peripheral blood under conditions of antibody excess occurred rapidly and effectively, regardless of single or multiple dosage levels. Additionally, depletion was observed for at least seven (7) days following the last injection, with partial B cell recovery observed by
day 21. - Table II summarizes the effect of immunologically active, chimeric anti-CD20 antibodies on cell populations of lymph nodes using the treatment regimen of Table I (4 daily doses of 0.4 mg/kg; 1 dose of 6.4 mg/kg); comparative values for normal lymph nodes (control monkey, axillary and inguinal) and normal bone marrow (two monkeys) are also provided.
TABLE II CELL POPULATIONS OF LYMPH NODES Monkey Dose Day CD2 Anti-Hu IgM A 0.4 mg/ kg 7 66.9 — (4 doses) 14 76.9 19.6 28 61.6 19.7 B 0.4 mg/ kg 7 59.4 — (4 doses) 14 83.2 9.9 28 84.1 15.7 C 6.4 mg/ kg 7 75.5 — (1 dose) 14 74.1 17.9 28 66.9 23.1 D 6.4 mg/ kg 7 83.8 — (1 dose) 14 74.1 17.9 28 84.1 12.8 Anti-Hu IgG + Monkey Anti-Hu IgM* Leu-16 % B Lymphocyte Depletion A 7.4 40.1 1 0.8 22.6 44 — 26.0 36 B 29.9 52.2 0 0.7 14.5 64 — 14.6 64 C 22.3 35.2 13 1.1 23.9 41 — 21.4 47 D 12.5 19.7 51 0.2 8.7 78 — 12.9 68 Anti-Hu IgG + Anti-Hu % B Lymphocyte CD2 Anti-Hu IgM IgM Leu-16 Depletion Normal Lymph Nodes Control 1 55.4 25.0 — 41.4 NA Axillary 52.1 31.2 — 39.5 NA Inguinal Normal Bone Marrow Control 2 65.3 19.0 — 11.4 NA Control 3 29.8 28.0 — 16.6 NA - The results of Table II evidence effective depletion of B lymphocytes for both treatment regimens. Table II further indicates that for the non-human primates, complete saturation of the B cells in the lymphatic tissue with immunologically active, chimeric anti-CD20 antibody was not achieved; additionally, antibody coated cells were observed seven (7) days after treatment, followed by a marked depletion of lymph node B cells, observed on day 14.
- Based upon this data, the single High Dosage Chimeric Anti-CD20 study referenced above was conducted, principally with an eye toward pharmacology/toxicology determination. Ie this study was conducted to evaluate any toxicity associated with the administration of the chimeric antibody, as well as the efficacy of B cell depletion from peripheral blood lymph nodes and bone marrow. Additionally, because the data of Table II indicates that for that study, the majority of lymph node B cells were depleted between 7 and 14 days following treatment, a weekly dosing regimen might evidence more efficacious results. Table III summarizes the results of the High Dosage Chimeric Anti-CD20 study.
TABLE III CELL POPULATIONS OF LYMPH NODES AND BONE MARROW Lymphocyte Populations (%) Monkey CD2 CD20a mIgM + anti-C2B8b C2B8c Dayd Inguinal Lymph Node E 90.0 5.3 4.8 6.5 22 F 91.0 6.3 5.6 6.3 22 G 89.9 5.0 3.7 5.8 36 H 85.4 12.3 1.7 1.8 36 Bone Marrow E 46.7 4.3 2.6 2.8 22 F 41.8 3.0 2.1 2.2 22 G 35.3 0.8 1.4 1.4 36 H 25.6 4.4 4.3 4.4 36 - Both animals evaluated at 22 days post treatment cessation contained less than 5% B cells, as compared to 40% in control lymph nodes (see, Table II, supra). Similarly, in the bone marrow of animals treated with chimeric anti-CD20 antibody, the levels of CD20 positive cells were less than 3% as compared to 11-15% in the normal animals (see, Table II, supra). In the animals evaluated at 36 days post treatment cessation, one of the animals (H) had approximately 12% B cells in the lymph node and 4.4% B cells in bone marrow, while the other (G) had approximately 5% B cells in the lymph node and 0.8% in the bone marrow—the data is indicative of significant B cell depletion.
- The results of Example III,A indicate, inter alia that low doses of immunologically active, chimeric anti-CD20 leads to long-term peripheral blood B cell depletion in primates. The data also indicates that significant depletion of B cell populations was achieved in peripheral lymph nodes and bone marrow when repetitive high doses of the antibody were administered. Continued follow-up on the test animals has indicated that even with such severe depletion of peripheral B lymphocytes during the first week of treatment, no adverse health effects have been observed. Furthermore, as recovery of B cell population was observed, a conclusion to be drawn is that the pluripotent stem cells of these primates were not adversely affected by the treatment.
- B. Clinical Analysis of C2B8
- i. Phase I/II Clinical Trial of C2B8: Single Dose Therapy Study
- Fifteen patients having histologically documented relapsed B cell lymphoma have been treated with C2B8 in a Phase I/II Clinical Trial. Each patient received a single dose of C2B8 in a dose-escalating study; there were three patients per dose: 10 mg/m2; 50 mg/m2; 100 mg/m2; 250 mg/m2 and 500 mg/m2. Treatment was by i.v. infusion through an 0.22 micron in-line filter with C2B8 being diluted in a final volume of 250 cc or a maximal concentration of 1 mg/ml of normal saline. Initial rate was 50 cc/hr for the first hour; if no toxicity was seen, dose rate was able to be escalated to a maximum of 200 cc/hr.
- Toxicity (as indicated by the clinician) ranged from “none”, to “fever” to “moderate” (two patients) to “severe” (one patient); all patients completed the therapy treatment. Peripheral Blood Lymphocytes were analyzed to determine, inter alia, the impact of C2B8 on T-cells and B-cells. Consistently for all patients, Peripheral Blood B Lymphocytes were depleted after infusion with C2B8 and such depletion was maintained for in excess of two weeks.
- One patient (receiving 100 mg/=Lymphocytes; =CD3+cells (T cells); =CD20+cells; =CD19+cells; =Kappa; =lambda; and =C2B8. As evidenced, the B cell markers CD20 and CD19, Kappa and Lambda, were depleted for a period in excess of two weeks; while there was a slight, initial reduction in T-cell counts, these returned to an approximate base-line level in a relatively rapid time-frame.2 of C2B8) evidenced a Partial Response to the C2B8 treatment (reduction of greater than 50% in the sum of the products of the perpendicular diameters of all measurable indicator lesions lasting greater than four weeks, during which no new lesions may appear and no existing lesions may enlarge); at least one other patient (receiving 500 mg/m2) evidenced a Minor Response to the C2B8 treatment (reduction of less than 50% but at least 25% in the sum of the products of the two longest perpendicular diameters of all measurable indicator lesions). For presentational efficiency, results of the PBLs are set forth in FIG. 14; data for the patient evidencing a PR is set forth in FIG. 14A; for the patient evidencing an MR, data is set forth in FIG. 14B. In FIG. 14, the following are applicable:
- ii. Phase I/II Clinical Trial of C2B8: Multiple Dose Therapy Study
- Patients having histologically confirmed B cell lymphoma with measurable progressive disease are eligible for this study which is separated into two parts: in Phase I, consisting of a dose escalation to characterize dose limiting toxicities and determination of biologically active tolerated dose level, groups of three patients will receive weekly i.v. infusions of C2B8 for a total of four (4) separate infusions. Cumulative dose at each of the three levels will be as follows: 500 mg/m2 (125 mg/m2/infusion); 1000 mg/m2 (250 mg/m2/infusion); 1500 mg/m2 (375 mg/m2/infusion. A biologically active tolerated dose is defined, and will be determined, as the lowest dose with both tolerable toxicity and adequate activity); in Phase II, additional patients will receive the biologically active tolerated dose with an emphasis on determining the activity of the four doses of C2B8.
- A combination therapeutic approach using C2B8 and Y2B8 was investigated in a mouse xenographic model (nu/nu mice, female, approximately 10 weeks old) utilizing a B cell lymphoblastic tumor (Ramos tumor cells). For comparative purposes, additional mice were also treated with C2B8 and Y2B8.
- Ramos tumor cells (ATCC, CRL 1596) were maintained in culture using RPMI-1640 supplemented with 10% fetal calf serum and glutamine at 37° C. and 5% CO2. Tumors were initiated in nine female nude mice approximately 7-10 weeks old by subcutaneous injection of 1.7×106 Ramos cells in a volume of 0.10 ml (HBSS) using a 1 cc syringe fitted with 25 g needle. All animals were manipulated in a laminar flow hood and all cages, bedding, food and water were autoclaved. Tumor cells were passaged by excising tumors and passing these through a 40 mesh screen; cells were washed twice with 1×HBSS (50 ml) by centrifugation (1300RPM), resuspended in IX HBSS to 10×106 cells/ml, and frozen at −70° C. until used.
- For the experimental conditions, cells from several frozen lots were thawed, pelleted by centrifugation (1300RPM) and washed twice with 1×HBSS. Cells were then resuspended to approximately 2.0×106 cells/ml. Approximately 9 to 12 mice were injected with 0.10 ml of the cell suspension (s.c.) using a 1 cc syringe fitted with a 25 g needle; injections were made on the animal's left side, approximately mid-region. Tumors developed in approximately two weeks. Tumors were excised and processed as described above. Study mice were injected as described above with 1.67×106 cells in 0.10 ml HBSS.
- Based on preliminary dosing experiments, it was determined that 200 mg of C2B8 and 100 μCi of Y2B8 would be utilized for the study. Ninety female nu/nu mice (approximately 10 weeks old) were injected with the tumor cells. Approximately ten days later, 24 mice were assigned to four study groups (six mice/group) while attempting to maintain a comparable tumor size distribution in each group (average tumor size, expressed as a product of length×width of the tumor, was approximately 80 mm2). The following groups were treated as indicated via tail-vain injections using a 100 μl Hamilton syringe fitted with a 25 g needle:
A. Normal Saline B. Y2B8 (100 μCi) C. C2B8 (200 μg); and D. Y2B8 (100 μCi) + C2B8 (200 μg) - Groups tested with C2B8 were given a second C2B8 injection (200 μg/mouse) seven days after the initial injection. Tumor measurements were made every two or three days using a caliper.
- Preparation of treatment materials were in accordance with the following protocols:
- A. Preparation of Y2B8
- Yttrium-[90] chloride (6 mCi) was transformed to a polypropylene tube and adjusted to pH 4.1-4.4 using metal free 2M sodium acetate. 2B8-MX-DTPA (0.3 mg in normal saline; see above for preparation of 2B8-MX-DTPA) was added and gently mixed by vortexing. After 15 min. incubation, the reaction was quenched by adding 0.05×
volume 20 mM EDTA and 0.05×volume 2M sodium acetate. Radioactivity concentration was determined by diluting 5.0 μl of the reaction mixture in 2.5ml 1×PBS containing 75 mg/ml HSA and 1 mM DTPA, (“formulation buffer”); counting was accomplished by adding 10.0 μl to 20 ml of Ecolume™ scintillation cocktail. The remainder of the reactive mixture was added to 3.0 ml formulation buffer, sterile filtered and stored at 2-8° C. until used. Specific activity (14 mCi/mg at time of injection) was calculated using the radioactivity concentration and the calculated protein concentration based upon the amount of antibody added to the reaction mixture. Protein-associated radioactivity was determined using instant thin-layer chromatography. Radioincorporation was 95%. Y2B8 was diluted in formulation buffer immediately before use and sterile-filtered (final radioactivity concentration was 1.0 mCi/ml). - B. Preparation of C2B8
- C2B8 was prepared as described above. C2B8 was provided as a sterile reagent in normal saline at 5.0 mg/ml. Prior to injection, the C2B8 was diluted in normal saline to 2.0 mg/ml and sterile filtered.
- C. Results
- Following treatment, tumor size was expressed as a product of length and width, and measurements were taken on the days indicated in FIG. 11 (Y2B8 vs. Saline); FIG. 12 (C2B8 vs. Saline); and FIG. 13 (Y2B8+C2B8 vs. Saline). Standard error was also determined.
- As indicated in FIG. 13, the combination of Y2B8 and C2B8 exhibited tumoricidal effects comparable to the effects evidenced by either Y2B8 or C2B8.
- Alternative therapeutic strategies recognized in view of the foregoing examples are evident. One such strategy employs the use of a therapeutic dose of C2B8 followed within about one week with a combination of either 2B8 and radioabeled 2B8 (eg Y2B8); or 2B8, C2B8 and, eg Y2B8; or C2B8 and, eg Y2B8. An additional strategy is utilization of radiolabeled C2B8—such a strategy allows for utilization of the benefits of the immunologically active portion of C2B8 plus those benefits associated with a radiolabel. Preferred radiolabels include yttrium-90 given the larger circulating half-life of C2B8 versus the murine antibody 2B8. Because of the ability of C2B8 to deplete B-cells, and the benefits to be derived from the use of a radiolabel, a preferred alternative strategy is to treat the patient with C2B8 (either with a single dose or multiple doses) such that most, if not all, peripheral B cells have been depleted. This would then be followed with the use of radiolabeled 2B8; because of the depletion of peripheral B cells, the radiolabeled 2B8 stands an increased chance of targeting tumor cells. Iodine [131] labeled 2B8 is preferably utilized, given the types of results reported in the literature with this label (see Kaminski). An alternative preference involves the use of a radiolabeled 2B8 (or C2B8) first in an effort to increase the permeability of a tumor, followed by single or multiple treatments with C2B8; the intent of this strategy is to increase the chances of the C2B8 in getting both outside and inside the tumor mass. A further strategy involved the use of chemotherapeutic agenst in combination with C2B8. These strategies include so-called “staggered” treatments, ie, treatment with chemotherapeutic agent, followed by treatment with C2B8, followed by a repetition of this protocol. Alternatively, initial treatment with a single or multiple doses of C2B8, thereafter followed with chemotherapeutic treatement, is viable. Preferred chemotherapeutic agents include, but are not limited to: cyclophlsphamide; doxorubicin; vincristine; and prednisone, See Armitage, J. O. et al.,Cancer 50:1695 (1982), incorporated herein by reference.
- The foregoing alternative therapy strategies are not intended to be limiting, but rather are presented as being representative.
- Anti-CD20 in TCAE 8 (transformed inE. coli for purposes of deposit) was deposited with the American Type Culture Collection (ATCC), 12301 Parklawn Drive, Rockville, Md., 20852, under the provisions of the Budapest Treaty for the International Recognition of the Deposit of Microorganisms for the Purpose of Patent Procedure (“Budapest Treaty”). The microorganism was tested by the ATCC on Nov. 9, 1992, and determined to be viable on that date. The ATCC has assigned this microorganism for the following ATCC deposit number: ATCC 69119 (anti-CD20 in TCAE 8). Hybridoma 2B8 was deposited with the ATCC on Jun. 22, 1993 under the provisions of the Budapest Treaty. The viability of the culture was determined on Jun. 25, 1993 and the ATCC has assigned this hybridoma the following ATCC deposit number: HB 11388.
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0 SEQUENCE LISTING (1) GENERAL INFORMATION: (iii) NUMBER OF SEQUENCES: 11 (2) INFORMATION FOR SEQ ID NO: 1: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 8541 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: single (D) TOPOLOGY: circular (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (viii) POSITION IN GENOME: (A) CHROMOSOME/SEGMENT: TCAE 8 (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 1: GACGTCGCGG CCGCTCTAGG CCTCCAAAAA AGCCTCCTCA CTACTTCTGG AATAGCTCAG 60 AGGCCGAGGC GGCCTCGGCC TCTGCATAAA TAAAAAAAAT TAGTCAGCCA TGCATGGGGC 120 GGAGAATGGG CGGAACTGGG CGGAGTTAGG GGCGGGATGG GCGGAGTTAG GGGCGGGACT 180 ATGGTTGCTG ACTAATTGAG ATGCATGCTT TGCATACTTC TGCCTGCTGG GGAGCCTGGG 240 GACTTTCCAC ACCTGGTTGC TGACTAATTG AGATGCATGC TTTGCATACT TCTGCCTGCT 300 GGGGAGCCTG GGGACTTTCC ACACCCTAAC TGACACACAT TCCACAGAAT TAATTCCCCT 360 AGTTATTAAT AGTAATCAAT TACGGGGTCA TTAGTTCATA GCCCATATAT GGAGTTCCGC 420 GTTACATAAC TTACGGTAAA TGGCCCGCCT GGCTGACCGC CCAACGACCC CCGCCCATTG 480 ACGTCAATAA TGACGTATGT TCCCATAGTA ACGCCAATAG GGACTTTCCA TTGACGTCAA 540 TGGGTGGACT ATTTACGGTA AACTGCCCAC TTGGCAGTAC ATCAAGTGTA TCATATGCCA 600 AGTACGCCCC CTATTGACGT CAATGACGGT AAATGGCCCG CCTGGCATTA TGCCCAGTAC 660 ATGACCTTAT GGGACTTTCC TACTTGGCAG TACATCTACG TATTAGTCAT CGCTATTACC 720 ATGGTGATGC GGTTTTGGCA GTACATCAAT GGGCGTGGAT AGCGGTTTGA CTCACGGGGA 780 TTTCCAAGTC TCCACCCCAT TGACGTCAAT GGGAGTTTGT TTTGGCACCA AAATCAACGG 840 GACTTTCCAA AATGTCGTAA CAACTCCGCC CCATTGACGC AAATGGGCGG TAGGCGTGTA 900 CGGTGGGAGG TCTATATAAG CAGAGCTGGG TACGTGAACC GTCAGATCGC CTGGAGACGC 960 CATCACAGAT CTCTCACCAT GAGGGTCCCC GCTCAGCTCC TGGGGCTCCT GCTGCTCTGG 1020 CTCCCAGGTG CACGATGTGA TGGTACCAAG GTGGAAATCA AACGTACGGT GGCTGCACCA 1080 TCTGTCTTCA TCTTCCCGCC ATCTGATGAG CAGTTGAAAT CTGGAACTGC CTCTGTTGTG 1140 TGCCTGCTGA ATAACTTCTA TCCCAGAGAG GCCAAAGTAC AGTGGAAGGT GGATAACGCC 1200 CTCCAATCGG GTAACTCCCA GGAGAGTGTC ACAGAGCAGG ACAGCAAGGA CAGCACCTAC 1260 AGCCTCAGCA GCACCCTGAC GCTGAGCAAA GCAGACTACG AGAAACACAA AGTCTACGCC 1320 TGCGAAGTCA CCCATCAGGG CCTGAGCTCG CCCGTCACAA AGAGCTTCAA CAGGGGAGAG 1380 TGTTGAATTC AGATCCGTTA ACGGTTACCA ACTACCTAGA CTGGATTCGT GACAACATGC 1440 GGCCGTGATA TCTACGTATG ATCAGCCTCG ACTGTGCCTT CTAGTTGCCA GCCATCTGTT 1500 GTTTGCCCCT CCCCCGTGCC TTCCTTGACC CTGGAAGGTG CCACTCCCAC TGTCCTTTCC 1560 TAATAAAATG AGGAAATTGC ATCGCATTGT CTGAGTAGGT GTCATTCTAT TCTGGGGGGT 1620 GGGGTGGGGC AGGACAGCAA GGGGGAGGAT TGGGAAGACA ATAGCAGGCA TGCTGGGGAT 1680 GCGGTGGGCT CTATGGAACC AGCTGGGGCT CGACAGCTAT GCCAAGTACG CCCCCTATTG 1740 ACGTCAATGA CGGTAAATGG CCCGCCTGGC ATTATGCCCA GTACATGACC TTATGGGACT 1800 TTCCTACTTG GCAGTACATC TACGTATTAG TCATCGCTAT TACCATGGTG ATGCGGTTTT 1860 GGCAGTACAT CAATGGGCGT GGATAGCGGT TTGACTCACG GGGATTTCCA AGTCTCCACC 1920 CCATTGACGT CAATGGGAGT TTGTTTTGGC ACCAAAATCA ACGGGACTTT CCAAAATGTC 1980 GTAACAACTC CGCCCCATTG ACGCAAATGG GCGGTAGGCG TGTACGGTGG GAGGTCTATA 2040 TAAGCAGAGC TGGGTACGTC CTCACATTCA GTGATCAGCA CTGAACACAG ACCCGTCGAC 2100 ATGGGTTGGA GCCTCATCTT GCTCTTCCTT GTCGCTGTTG CTACGCGTGT CGCTAGCACC 2160 AAGGGCCCAT CGGTCTTCCC CCTGGCACCC TCCTCCAAGA GCACCTCTGG GGGCACAGCG 2220 GCCCTGGGCT GCCTGGTCAA GGACTACTTC CCCGAACCGG TGACGGTGTC GTGGAACTCA 2280 GGCGCCCTGA CCAGCGGCGT GCACACCTTC CCGGCTGTCC TACAGTCCTC AGGACTCTAC 2340 TCCCTCAGCA GCGTGGTGAC CGTGCCCTCC AGCAGCTTGG GCACCCAGAC CTACATCTGC 2400 AACGTGAATC ACAAGCCCAG CAACACCAAG GTGGACAAGA AAGCAGAGCC CAAATCTTGT 2460 GACAAAACTC ACACATGCCC ACCGTGCCCA GCACCTGAAC TCCTGGGGGG ACCGTCAGTC 2520 TTCCTCTTCC CCCCAAAACC CAAGGACACC CTCATGATCT CCCGGACCCC TGAGGTCACA 2580 TGCGTGGTGG TGGACGTGAG CCACGAAGAC CCTGAGGTCA AGTTCAACTG GTACGTGGAC 2640 GGCGTGGAGG TGCATAATGC CAAGACAAAG CCGCGGGAGG AGCAGTACAA CAGCACGTAC 2700 CGTGTGGTCA GCGTCCTCAC CGTCCTGCAC CAGGACTGGC TGAATGGCAA GGACTACAAG 2760 TGCAAGGTCT CCAACAAAGC CCTCCCAGCC CCCATCGAGA AAACCATCTC CAAAGCCAAA 2820 GGGCAGCCCC GAGAACCACA GGTGTACACC CTGCCCCCAT CCCGGGATGA GCTGACCAGG 2880 AACCAGGTCA GCCTGACCTG CCTGGTCAAA GGCTTCTATC CCAGCGACAT CGCCGTGGAG 2940 TGGGAGAGCA ATGGGCAGCC GGAGAACAAC TACAAGACCA CGCCTCCCGT GCTGGACTCC 3000 GACGGCTCCT TCTTCCTCTA CAGCAAGCTC ACCGTGGACA AGAGCAGGTG GCAGCAGGGG 3060 AACGTCTTCT CATGCTCCGT GATGCATGAG GCTCTGCACA ACCACTACAC GCAGAAGAGC 3120 CTCTCCCTGT CTCCGGGTAA ATGAGGATCC GTTAACGGTT ACCAACTACC TAGACTGGAT 3180 TCGTGACAAC ATGCGGCCGT GATATCTACG TATGATCAGC CTCGACTGTG CCTTCTAGTT 3240 GCCAGCCATC TGTTGTTTGC CCCTCCCCCG TGCCTTCCTT GACCCTGGAA GGTGCCACTC 3300 CCACTGTCCT TTCCTAATAA AATGAGGAAA TTGCATCGCA TTGTCTGAGT AGGTGTCATT 3360 CTATTCTGGG GGGTGGGGTG GGGCAGGACA GCAAGGGGGA GGATTGGGAA GACAATAGCA 3420 GGCATGCTGG GGATGCGGTG GGCTCTATGG AACCAGCTGG GGCTCGACAG CGCTGGATCT 3480 CCCGATCCCC AGCTTTGCTT CTCAATTTCT TATTTGCATA ATGAGAAAAA AAGGAAAATT 3540 AATTTTAACA CCAATTCAGT AGTTGATTGA GCAAATGCGT TGCCAAAAAG GATGCTTTAG 3600 AGACAGTGTT CTCTGCACAG ATAAGGACAA ACATTATTCA GAGGGAGTAC CCAGAGCTGA 3660 GACTCCTAAG CCAGTGAGTG GCACAGCATT CTAGGGAGAA ATATGCTTGT CATCACCGAA 3720 GCCTGATTCC GTAGAGCCAC ACCTTGGTAA GGGCCAATCT GCTCACACAG GATAGAGAGG 3780 GCAGGAGCCA GGGCAGAGCA TATAAGGTGA GGTAGGATCA GTTGCTCCTC ACATTTGCTT 3840 CTGACATAGT TGTGTTGGGA GCTTGGATAG CTTGGACAGC TCAGGGCTGC GATTTCGCGC 3900 CAAACTTGAC GGCAATCCTA GCGTGAAGGC TGGTAGGATT TTATCCCCGC TGCCATCATG 3960 GTTCGACCAT TGAACTGCAT CGTCGCCGTG TCCCAAAATA TGGGGATTGG CAAGAACGGA 4020 GACCTACCCT GGCCTCCGCT CAGGAACGAG TTCAAGTACT TCCAAAGAAT GACCACAACC 4080 TCTTCAGTGG AAGGTAAACA GAATCTGGTG ATTATGGGTA GGAAAACCTG GTTCTCCATT 4140 CCTGAGAAGA ATCGACCTTT AAAGGACAGA ATTAATATAG TTCTCAGTAG AGAACTCAAA 4200 GAACCACCAC GAGGAGCTCA TTTTCTTGCC AAAAGTTTGG ATGATGCCTT AAGACTTATT 4260 GAACAACCGG AATTGGCAAG TAAAGTAGAC ATGGTTTGGA TAGTCGGAGG CAGTTCTGTT 4320 TACCAGGAAG CCATGAATCA ACCAGGCCAC CTTAGACTCT TTGTGACAAG GATCATGCAG 4380 GAATTTGAAA GTGACACGTT TTTCCCAGAA ATTGATTTGG GGAAATATAA ACTTCTCCCA 4440 GAATACCCAG GCGTCCTCTC TGAGGTCCAG GAGGAAAAAG GCATCAAGTA TAAGTTTGAA 4500 GTCTACGAGA AGAAAGACTA ACAGGAAGAT GCTTTCAAGT TCTCTGCTCC CCTCCTAAAG 4560 TCATGCATTT TTATAAGACC ATGGGACTTT TGCTGGCTTT AGATCAGCCT CGACTGTGCC 4620 TTCTAGTTGC CAGCCATCTG TTGTTTGCCC CTCCCCCGTG CCTTCCTTGA CCCTGGAAGG 4680 TGCCACTCCC ACTGTCCTTT CCTAATAAAA TGAGGAAATT GCATCGCATT GTCTGAGTAG 4740 GTGTCATTCT ATTCTGGGGG GTGGGGTGGG GCAGGACAGC AAGGGGGAGG ATTGGGAAGA 4800 CAATAGCAGG CATGCTGGGG ATGCGGTGGG CTCTATGGAA CCAGCTGGGG CTCGAGCTAC 4860 TAGCTTTGCT TCTCAATTTC TTATTTGCAT AATGAGAAAA AAAGGAAAAT TAATTTTAAC 4920 ACCAATTCAG TAGTTGATTG AGCAAATGCG TTGCCAAAAA GGATGCTTTA GAGACAGTGT 4980 TCTCTGCACA GATAAGGACA AACATTATTC AGAGGGAGTA CCCAGAGCTG AGACTCCTAA 5040 GCCAGTGAGT GGCACAGCAT TCTAGGGAGA AATATGCTTG TCATCACCGA AGCCTGATTC 5100 CGTAGAGCCA CACCTTGGTA AGGGCCAATC TGCTCACACA GGATAGAGAG GGCAGGAGCC 5160 AGGGCAGAGC ATATAAGGTG AGGTAGGATC AGTTGCTCCT CACATTTGCT TCTGACATAG 5220 TTGTGTTGGG AGCTTGGATC GATCCTCTAT GGTTGAACAA GATGGATTGC ACGCAGGTTC 5280 TCCGGCCGCT TGGGTGGAGA GGCTATTCGG CTATGACTGG GCACAACAGA CAATCGGCTG 5340 CTCTGATGCC GCCGTGTTCC GGCTGTCAGC GCAGGGGCGC CCGGTTCTTT TTGTCAAGAC 5400 CGACCTGTCC GGTGCCCTGA ATGAACTGCA GGACGAGGCA GCGCGGCTAT CGTGGCTGGC 5460 CACGACGGGC GTTCCTTGCG CAGCTGTGCT CGACGTTGTC ACTGAAGCGG GAAGGGACTG 5520 GCTGCTATTG GGCGAAGTGC CGGGGCAGGA TCTCCTGTCA TCTCACCTTG CTCCTGCCGA 5580 GAAAGTATCC ATCATGGCTG ATGCAATGCG GCGGCTGCAT ACGCTTGATC CGGCTACCTG 5640 CCCATTCGAC CACCAAGCGA AACATCGCAT CGAGCGAGCA CGTACTCGGA TGGAAGCCGG 5700 TCTTGTCGAT CAGGATGATC TGGACGAAGA GCATCAGGGG CTCGCGCCAG CCGAACTGTT 5760 CGCCAGGCTC AAGGCGCGCA TGCCCGACGG CGAGGATCTC GTCGTGACCC ATGGCGATGC 5820 CTGCTTGCCG AATATCATGG TGGAAAATGG CCGCTTTTCT GGATTCATCG ACTGTGGCCG 5880 GCTGGGTGTG GCGGACCGCT ATCAGGACAT AGCGTTGGCT ACCCGTGATA TTGCTGAAGA 5940 GCTTGGCGGC GAATGGGCTG ACCGCTTCCT CGTGCTTTAC GGTATCGCCG CTTCCCGATT 6000 CGCAGCGCAT CGCCTTCTAT CGCCTTCTTG ACGAGTTCTT CTGAGCGGGA CTCTGGGGTT 6060 CGAAATGACC GACCAAGCGA CGCCCAACCT GCCATCACGA GATTTCGATT CCACCGCCGC 6120 CTTCTATGAA AGGTTGGGCT TCGGAATCGT TTTCCGGGAC GCCGGCTGGA TGATCCTCCA 6180 GCGCGGGGAT CTCATGCTGG AGTTCTTCGC CCACCCCAAC TTGTTTATTG CAGCTTATAA 6240 TGGTTACAAA TAAAGCAATA GCATCACAAA TTTCACAAAT AAAGCATTTT TTTCACTGCA 6300 TTCTAGTTGT GGTTTGTCCA AACTCATCAA TCTATCTTAT CATGTCTGGA TCGCGGCCGC 6360 GATCCCGTCG AGAGCTTGGC GTAATCATGG TCATAGCTGT TTCCTGTGTG AAATTGTTAT 6420 CCGCTCACAA TTCCACACAA CATACGAGCC GGAAGCATAA AGTGTAAAGC CTGGGGTGCC 6480 TAATGAGTGA GCTAACTCAC ATTAATTGCG TTGCGCTCAC TGCCCGCTTT CCAGTCGGGA 6540 AACCTGTCGT GCCAGCTGCA TTAATGAATC GGCCAACGCG CGGGGAGAGG CGGTTTGCGT 6600 ATTGGGCGCT CTTCCGCTTC CTCGCTCACT GACTCGCTGC GCTCGGTCGT TCGGCTGCGG 6660 CGAGCGGTAT CAGCTCACTC AAAGGCGGTA ATACGGTTAT CCACAGAATC AGGGGATAAC 6720 GCAGGAAAGA ACATGTGAGC AAAAGGCCAG CAAAAGGCCA GGAACCGTAA AAAGGCCGCG 6780 TTGCTGGCGT TTTTCCATAG GCTCCGCCCC CCTGACGAGC ATCACAAAAA TCGACGCTCA 6840 AGTCAGAGGT GGCGAAACCC GACAGGACTA TAAAGATACC AGGCGTTTCC CCCTGGAAGC 6900 TCCCTCGTGC GCTCTCCTGT TCCGACCCTG CCGCTTACCG GATACCTGTC CGCCTTTCTC 6960 CCTTCGGGAA GCGTGGCGCT TTCTCAATGC TCACGCTGTA GGTATCTCAG TTCGGTGTAG 7020 GTCGTTCGCT CCAAGCTGGG CTGTGTGCAC GAACCCCCCG TTCAGCCCGA CCGCTGCGCC 7080 TTATCCGGTA ACTATCGTCT TGAGTCCAAC CCGGTAAGAC ACGACTTATC GCCACTGGCA 7140 GCAGCCACTG GTAACAGGAT TAGCAGAGCG AGGTATGTAG GCGGTGCTAC AGAGTTCTTG 7200 AAGTGGTGGC CTAACTACGG CTACACTAGA AGGACAGTAT TTGGTATCTG CGCTCTGCTG 7260 AAGCCAGTTA CCTTCGGAAA AAGAGTTGGT AGCTCTTGAT CCGGCAAACA AACCACCGCT 7320 GGTAGCGGTG GTTTTTTTGT TTGCAAGCAG CAGATTACGC GCAGAAAAAA AGGATCTCAA 7380 GAAGATCCTT TGATCTTTTC TACGGGGTCT GACGCTCAGT GGAACGAAAA CTCACGTTAA 7440 GGGATTTTGG TCATGAGATT ATCAAAAAGG ATCTTCACCT AGATCCTTTT AAATTAAAAA 7500 TGAAGTTTTA AATCAATCTA AAGTATATAT GAGTAAACTT GGTCTGACAG TTACCAATGC 7560 TTAATCAGTG AGGCACCTAT CTCAGCGATC TGTCTATTTC GTTCATCCAT AGTTGCCTGA 7620 CTCCCCGTCG TGTAGATAAC TACGATACGG GAGGGCTTAC CATCTGGCCC CAGTGCTGCA 7680 ATGATACCGC GAGACCCACG CTCACCGGCT CCAGATTTAT CAGCAATAAA CCAGCCAGCC 7740 GGAAGGGCCG AGCGCAGAAG TGGTCCTGCA ACTTTATCCG CCTCCATCCA GTCTATTAAT 7800 TGTTGCCGGG AAGCTAGAGT AAGTAGTTCG CCAGTTAATA GTTTGCGCAA CGTTGTTGCC 7860 ATTGCTACAG GCATCGTGGT GTCACGCTCG TCGTTTGGTA TGGCTTCATT CAGCTCCGGT 7920 TCCCAACGAT CAAGGCGAGT TACATGATCC CCCATGTTGT GCAAAAAAGC GGTTAGCTCC 7980 TTCGGTCCTC CGATCGTTGT CAGAAGTAAG TTGGCCGCAG TGTTATCACT CATGGTTATG 8040 GCAGCACTGC ATAATTCTCT TACTGTCATG CCATCCGTAA GATGCTTTTC TGTGACTGGT 8100 GAGTACTCAA CCAAGTCATT CTGAGAATAG TGTATGCGGC GACCGAGTTG CTCTTGCCCG 8160 GCGTCAATAC GGGATAATAC CGCGCCACAT AGCAGAACTT TAAAAGTGCT CATCATTGGA 8220 AAACGTTCTT CGGGGCGAAA ACTCTCAAGG ATCTTACCGC TGTTGAGATC CAGTTCGATG 8280 TAACCCACTC GTGCACCCAA CTGATCTTCA GCATCTTTTA CTTTCACCAG CGTTTCTGGG 8340 TGAGCAAAAA CAGGAAGGCA AAATGCCGCA AAAAAGGGAA TAAGGGCGAC ACGGAAATGT 8400 TGAATACTCA TACTCTTCCT TTTTCAATAT TATTGAAGCA TTTATCAGGG TTATTGTCTC 8460 ATGAGCGGAT ACATATTTGA ATGTATTTAG AAAAATAAAC AAATAGGGGT TCCGCGCACA 8520 TTTCCCCGAA AAGTGCCACC T 8541 (2) INFORMATION FOR SEQ ID NO: 2: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 9209 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: single (D) TOPOLOGY: circular (ii) MOLECULE TYPE: DNA (genomic) (iii) HYPOTHETICAL: NO (iv) ANTI-SENSE: NO (viii) POSITION IN GENOME: (A) CHROMOSOME/SEGMENT: anti-CD20 in TCAE 8 (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 2: GACGTCGCGG CCGCTCTAGG CCTCCAAAAA AGCCTCCTCA CTACTTCTGG AATAGCTCAG 60 AGGCCGAGGC GGCCTCGGCC TCTGCATAAA TAAAAAAAAT TAGTCAGCCA TGCATGGGGC 120 GGAGAATGGG CGGAACTGGG CGGAGTTAGG GGCGGGATGG GCGGAGTTAG GGGCGGGACT 180 ATGGTTGCTG ACTAATTGAG ATGCATGCTT TGCATACTTC TGCCTGCTGG GGAGCCTGGG 240 GACTTTCCAC ACCTGGTTGC TGACTAATTG AGATGCATGC TTTGCATACT TCTGCCTGCT 300 GGGGAGCCTG GGGACTTTCC ACACCCTAAC TGACACACAT TCCACAGAAT TAATTCCCCT 360 AGTTATTAAT AGTAATCAAT TACGGGGTCA TTAGTTCATA GCCCATATAT GGAGTTCCGC 420 GTTACATAAC TTACGGTAAA TGGCCCGCCT GGCTGACCGC CCAACGACCC CCGCCCATTG 480 ACGTCAATAA TGACGTATGT TCCCATAGTA ACGCCAATAG GGACTTTCCA TTGACGTCAA 540 TGGGTGGACT ATTTACGGTA AACTGCCCAC TTGGCAGTAC ATCAAGTGTA TCATATGCCA 600 AGTACGCCCC CTATTGACGT CAATGACGGT AAATGGCCCG CCTGGCATTA TGCCCAGTAC 660 ATGACCTTAT GGGACTTTCC TACTTGGCAG TACATCTACG TATTAGTCAT CGCTATTACC 720 ATGGTGATGC GGTTTTGGCA GTACATCAAT GGGCGTGGAT AGCGGTTTGA CTCACGGGGA 780 TTTCCAAGTC TCCACCCCAT TGACGTCAAT GGGAGTTTGT TTTGGCACCA AAATCAACGG 840 GACTTTCCAA AATGTCGTAA CAACTCCGCC CCATTGACGC AAATGGGCGG TAGGCGTGTA 900 CGGTGGGAGG TCTATATAAG CAGAGCTGGG TACGTGAACC GTCAGATCGC CTGGAGACGC 960 CATCACAGAT CTCTCACTAT GGATTTTCAG GTGCAGATTA TCAGCTTCCT GCTAATCAGT 1020 GCTTCAGTCA TAATGTCCAG AGGACAAATT GTTCTCTCCC AGTCTCCAGC AATCCTGTCT 1080 GCATCTCCAG GGGAGAAGGT CACAATGACT TGCAGGGCCA GCTGAAGTGT AAGTTACATC 1140 CACTGGTTCC AGCAGAAGCC AGGATCCTCC CCCAAACCCT GGATTTATGC CACATCCAAC 1200 CTGGCTTCTG GAGTCCCTGT TCGCTTCAGT GGCAGTGGGT CTGGGACTTC TTACTCTCTC 1260 ACCATCAGCA GAGTGGAGGC TGAAGATGCT GCCACTTATT ACTGCCAGCA GTGGACTAGT 1320 AACCCACCCA CGTTCGGAGG GGGGACCAAG CTGGAAATCA AACGTACGGT GGCTGCACCA 1380 TCTGTCTTCA TCTTCCCGCC ATCTGATGAG CAGTTGAAAT CTGGAACTGC CTCTGTTGTG 1440 TGCCTGCTGA ATAACTTCTA TCCCAGAGAG GCCAAAGTAC AGTGGAAGGT GGATAACGCC 1500 CTCCAATCGG GTAACTCCCA GGAGAGTGTC ACAGAGCAGG ACAGCAAGGA CAGCACCTAC 1560 AGCCTCAGCA GCACCCTGAC GCTGAGCAAA GCAGACTACG AGAAACACAA AGTCTACGCC 1620 TGCGAAGTCA CCCATCAGGG CCTGAGCTCG CCCGTCACAA AGAGCTTCAA CAGGGGAGAG 1680 TGTTGAATTC AGATCCGTTA ACGGTTACCA ACTACCTAGA CTGGATTCGT GACAACATGC 1740 GGCCGTGATA TCTACGTATG ATCAGCCTCG ACTGTGCCTT CTAGTTGCCA GCCATCTGTT 1800 GTTTGCCCCT CCCCCGTGCC TTCCTTGACC CTGGAAGGTG CCACTCCCAC TGTCCTTTCC 1860 TAATAAAATG AGGAAATTGC ATCGCATTGT CTGAGTAGGT GTCATTCTAT TCTGGGGGGT 1920 GGGGTGGGGC AGGACAGCAA GGGGGAGGAT TGGGAAGACA ATAGCAGGCA TGCTGGGGAT 1980 GCGGTGGGCT CTATGGAACC AGCTGGGGCT CGACAGCTAT GCCAAGTACG CCCCCTATTG 2040 ACGTCAATGA CGGTAAATGG CCCGCCTGGC ATTATGCCCA GTACATGACC TTATGGGACT 2100 TTCCTACTTG GCAGTACATC TACGTATTAG TCATCGCTAT TACCATGGTG ATGCGGTTTT 2160 GGCAGTACAT CAATGGGCGT GGATAGCGGT TTGACTCACG GGGATTTCCA AGTCTCCACC 2220 CCATTGACGT CAATGGGAGT TTGTTTTGGC ACCAAAATCA ACGGGACTTT CCAAAATGTC 2280 GTAACAACTC CGCCCCATTG ACGCAAATGG GCGGTAGGCG TGTACGGTGG GAGGTCTATA 2340 TAAGCAGAGC TGGGTACGTC CTCACATTCA GTGATCAGCA CTGAACACAG ACCCGTCGAC 2400 ATGGGTTGGA GCCTCATCTT GCTCTTCCTT GTCGCTGTTG CTACGCGTGT CCTGTCCCAG 2460 GTACAACTGC AGCAGCCTGG GGCTGAGCTG GTGAAGCCTG GGGCCTCAGT GAAGATGTCC 2520 TGCAAGGCTT CTGGCTACAC ATTTACCAGT TACAATATGC ACTGGGTAAA ACAGACACCT 2580 GGTCGGGGCC TGGAATGGAT TGGAGCTATT TATCCCGGAA ATGGTGATAC TTCCTACAAT 2640 CAGAAGTTCA AAGGCAAGGC CACATTGACT GCAGACAAAT CCTCCAGCAC AGCCTACATG 2700 CAGCTCAGCA GCCTGACATC TGAGGACTCT GCGGTCTATT ACTGTGCAAG ATCGACTTAC 2760 TACGGCGGTG ACTGGTACTT CAATGTCTGG GGCGCAGGGA CCACGGTCAC CGTCTCTGCA 2820 GCTAGCACCA AGGGCCCATC GGTCTTCCCC CTGGCACCCT CCTCCAAGAG CACCTCTGGG 2880 GGCACAGCGG CCCTGGGCTG CCTGGTCAAG GACTACTTCC CCGAACCGGT GACGGTGTCG 2940 TGGAACTCAG GCGCCCTGAC CAGCGGCGTG CACACCTTCC CGGCTGTCCT ACAGTCCTCA 3000 GGACTCTACT CCCTCAGCAG CGTGGTGACC GTGCCCTCCA GCAGCTTGGG CACCCAGACC 3060 TACATCTGCA ACGTGAATCA CAAGCCCAGC AACACCAAGG TGGACAAGAA AGCAGAGCCC 3120 AAATCTTGTG ACAAAACTCA CACATGCCCA CCGTGCCCAG CACCTGAACT CCTGGGGGGA 3180 CCGTCAGTCT TCCTCTTCCC CCCAAAACCC AAGGACACCC TCATGATCTC CCGGACCCCT 3240 GAGGTCACAT GCGTGGTGGT GGACGTGAGC CACGAAGACC CTGAGGTCAA GTTCAACTGG 3300 TACGTGGACG GCGTGGAGGT GCATAATGCC AAGACAAAGC CGCGGGAGGA GCAGTACAAC 3360 AGCACGTACC GTGTGGTCAG CGTCCTCACC GTCCTGCACC AGGACTGGCT GAATGGCAAG 3420 GAGTACAAGT GCAAGGTCTC CAACAAAGCC CTCCCAGCCC CCATCGAGAA AACCATCTCC 3480 AAAGCCAAAG GGCAGCCCCG AGAACCACAG GTGTACACCC TGCCCCCATC CCGGGATGAG 3540 CTGACCAAGA ACCAGGTCAG CCTGACCTGC CTGGTCAAAG GCTTCTATCC CAGCGACATC 3600 GCCGTGGAGT GGGAGAGCAA TGGGCAGCCG GAGAACAACT ACAAGACCAC GCCTCCCGTG 3660 CTGGACTCCG ACGGCTCCTT CTTCCTCTAC AGCAAGCTCA CCGTGGACAA GAGCAGGTGG 3720 CAGCAGGGGA ACGTCTTCTC ATGCTCCGTG ATGCATGAGG CTCTGCACAA CCACTACACG 3780 CAGAAGAGCC TCTCCCTGTC TCCGGGTAAA TGAGGATCCG TTAACGGTTA CCAACTACCT 3840 AGACTGGATT CGTGACAACA TGCGGCCGTG ATATCTACGT ATGATCAGCC TCGACTGTGC 3900 CTTCTAGTTG CCAGCCATCT GTTGTTTGCC CCTCCCCCGT GCCTTCCTTG ACCCTGGAAG 3960 GTGCCACTCC CACTGTCCTT TCCTAATAAA ATGAGGAAAT TGCATCGCAT TGTCTGAGTA 4020 GGTGTCATTC TATTCTGGGG GGTGGGGTGG GGCAGGACAG CAAGGGGGAG GATTGGGAAG 4080 ACAATAGCAG GCATGCTGGG GATGCGGTGG GCTCTATGGA ACCAGCTGGG GCTCGACAGC 4140 GCTGGATCTC CCGATCCCCA GCTTTGCTTC TCAATTTCTT ATTTGCATAA TGAGAAAAAA 4200 AGGAAAATTA ATTTTAACAC CAATTCAGTA GTTGATTGAG CAAATGCGTT GCCAAAAAGG 4260 ATGCTTTAGA GACAGTGGTC TCTGCACAGA TAAGGACAAA CATTATTCAG AGGGAGTACC 4320 CAGAGCTGAG ACTCCTAAGC CAGTGAGTGG CACAGCATTC TAGGGAGAAA TATGCTTGTC 4380 ATCACCGAAG CCTGATTCCG TAGAGCCACA CCTTGGTAAG GGCCAATCTG CTCACACAGG 4440 ATAGAGAGGG CAGGAGCCAG GGCAGAGCAT ATAAGGTGAG GTAGGATCAG TTGCTCCTCA 4500 CATTTGCTTC TGACATAGTT GTGTTGGGAG CTTGGATAGC TTGGACAGCT CAGGGCTGCG 4560 ATTTCGCGCC AAACTTGACG GCAATCCTAG CGTGAAGGCT GGTAGGATTT TATCCCCGCT 4620 GCCATCATGG TTCGACCATT GAACTGCATC GTCGCCGTGT CCCAAAATAT GGGGATTGGC 4680 AAGAACGGAG ACCTACCCTG GCCTCCGCTC AGGAACGAGT TCAAGTACTT CCAAAGAATG 4740 ACCACAACCT CTTCAGTGGA AGGTAAACAG AATCTGGTGA TTATGGGTAG GAAAACCTGG 4800 TTCTCCATTC CTGAGAAGAA TCGACCTTTA AAGGACAGAA TTAATATAGT TCTCAGTAGA 4860 GAACTCAAAG AACCACCACG AGGAGCTCAT TTTCTTGCCA AAAGTTTGGA TGATGCCTTA 4920 AGACTTATTG AACAACCGGA ATTGGCAAGT AAAGTAGACA TGGTTTGGAT AGTCGGAGGC 4980 AGTTCTGTTT ACCAGGAAGC CATGAATCAA CCAGGCCACC TTAGACTCTT TGTGACAAGG 5040 ATCATGCAGG AATTTGAAAG TGACACGTTT TTCCCAGAAA TTGATTTGGG GAAATATAAA 5100 CTTCTCCCAG AATACCCAGG CGTCCTCTCT GAGGTCCAGG AGGAAAAAGG CATCAAGTAT 5160 AAGTTTGAAG TCTACGAGAA GAAAGACTAA CAGGAAGATG CTTTCAAGTT CTCTGCTCCC 5220 CTCCTAAAGC TATGCATTTT TATAAGACCA TGGGACTTTT GCTGGCTTTA GATCAGCCTC 5280 GACTGTGCCT TCTAGTTGCC AGCCATCTGT TGTTTGCCCC TCCCCCGTGC CTTCCTTGAC 5340 CCTGGAAGGT GCCACTCCCA CTGTCCTTTC CTAATAAAAT GAGGAAATTG CATCGCATTG 5400 TCTGAGTAGG TGTCATTCTA TTCTGGGGGG TGGGGTGGGG CAGGACAGCA AGGGGGAGGA 5460 TTGGGAAGAC AATAGCAGGC ATGCTGGGGA TGCGGTGGGC TCTATGGAAC CAGCTGGGGC 5520 TCGAGCTACT AGCTTTGCTT CTCAATTTCT TATTTGCATA ATGAGAAAAA AAGGAAAATT 5580 AATTTTAACA CCAATTCAGT AGTTGATTGA GCAAATGCGT TGCCAAAAAG GATGCTTTAG 5640 AGACAGTGTT CTCTGCACAG ATAAGGACAA CTAGGGAGAA ATATGCTTGT CATCACCGAA 5700 GACTCCTAAG CCAGTGAGTG GCACAGCATT CTAGGGAGAA ATATGCTTGT CATCACCGAA 5760 GCCTGATTCC GTAGAGCCAC ACCTTGGTAA GGGCCAATCT GCTCACACAG GATAGAGAGG 5820 GCAGGAGCCA GGGCAGAGCA TATAAGGTGA GGTAGGATCA GTTGCTCCTC ACATTTGCTT 5880 CTGACATAGT TGTGTTGGGA GCTTGGATCG ATCCTCTATG GTTGAACAAG ATGGATTGCA 5940 CGCAGGTTCT CCGGCCGCTT GGGTGGAGAG GCTATTCGGC TATGACTGGG CACAACAGAC 6000 AATCGGCTGC TCTGATGCCG CCGTGTTCCG GCTGTCAGCG CAGGGGCGCC CGGTTCTTTT 6060 TGTCAAGACC GACCTGTCCG GTGCCCTGAA TGAACTGCAG GACGAGGCAG CGCGGCTATC 6120 GTGGCTGGCC ACGACGGGCG TTCCTTGCGC AGCTGTGCTC GACGTTGTCA CTGAAGCGGG 6180 AAGGGACTGG CTGCTATTGG GCGAAGTGCC GGGGCAGGAT CTCCTGTCAT CTCACCTTGC 6240 TCCTGCCGAG AAAGTATCCA TCATGGCTGA TGCAATGCGG CGGCTGCATA CGCTTGATCC 6300 GGCTACCTGC CCATTCGACC ACCAAGCGAA ACATCGCATC GAGCGAGCAC GTACTCGGAT 6360 GGAAGCCGGT CTTGTCGATC AGGATGATCT GGACGAAGAG CATCAGGGGC TCGCGCCAGC 6420 CGAACTGTTC GCCAGGCTCA AGGCGCGCAT GCCCGACGGC GAGGATCTCG TCGTGACCCA 6480 TGGCGATGCC TGCTTGCCGA ATATCATGGT GGAAAATGGC CGCTTTTCTG GATTCATCGA 6540 CTGTGGCCGG CTGGGTGTGG CGGACCGCTA TCAGGACATA GCGTTGGCTA CCCGTGATAT 6600 TGCTGAAGAG CTTGGCGGCG AATGGGCTGA CCGCTTCCTC GTGCTTTACG GTATCGCCGC 6660 TCCCGATTCG CAGCGCATCG CCTTCTATCG CCTTCTTGAC GAGTTCTTCT GAGCGGGACT 6720 CTGGGGTTCG AAATGACCGA CCAAGCGACG CCCAACCTGC CATCACGAGA TTTCGATTCC 6780 ACCGCCGCCT TCTATGAAAG GTTGGGCTTC GGAATCGTTT TCCGGGACGC CGGCTGGATG 6840 ATCCTCCAGC GCGGGGATCT CATGCTGGAG TTCTTCGCCC ACCCCAACTT GTTTATTGCA 6900 GCTTATAATG GTTACAAATA AAGCAATAGC ATCACAAATT TCACAAATAA AGCATTTTTT 6960 TCACTGCATT CTAGTTGTGG TTTGTCCAAA CTCATCAATC TATCTTATCA TGTCTGGATC 7020 GCGGCCGCGA TCCCGTCGAG AGCTTGGCGT AATCATGGTC ATAGCTGTTT CCTGTGTGAA 7080 ATTGTTATCC GCTCACAATT CCACACAACA TACGAGCCGG AAGCATAAAG TGTAAAGCCT 7140 GGGGTGCCTA ATGAGTGAGC TAACTCACAT TAATTGCGTT GCGCTCACTG CCCGCTTTCC 7200 AGTCGGGAAA CCTGTCGTGC CAGCTGCATT AATGAATCGG CCAACGCGCG GGGAGAGGCG 7260 GTTTGCGTAT TGGGCGCTCT TCCGCTTCCT CGCTCACTGA CTCGCTGCGC TCGGTCGTTC 7320 GGCTGCGGCG AGCGGTATCA GCTCACTCAA AGGCGGTAAT ACGGTTATCC ACAGAATCAG 7380 GGGATAACGC AGGAAAGAAC ATGTGAGCAA AAGGCCAGCA AAAGGCCAGG AACCGTAAAA 7440 AGGCCGCGTT GCTGGCGTTT TTCCATAGGC TCCGCCCCCC TGACGAGCAT CACAAAAATC 7500 GACGCTCAAG TCAGAGGTGG CGAAACCCGA CAGGACTATA AAGATACCAG GCGTTTCCCC 7560 CTGGAAGCTC CCTCGTGCGC TCTCCTGTTC CGACCCTGCC GCTTACCGGA TACCTGTCCG 7620 CCTTTCTCCC TTCGGGAAGC GTGGCGCTTT CTCAATGCTC ACGCTGTAGG TATCTCAGTT 7680 CGGTGTAGGT CGTTCGCTCC AAGCTGGGCT GTGTGCACGA ACCCCCCGTT CAGCCCGACC 7740 GCTGCGCCTT ATCCGGTAAC TATCGTCTTG AGTCCAACCC GGTAAGACAC GACTTATCGC 7800 CACTGGCAGC AGCCACTGGT AACAGGATTA GCAGAGCGAG GTATGTAGGC GGTGCTACAG 7860 AGTTCTTGAA GTGGTGGCCT AACTACGGCT ACACTAGAAG GACAGTATTT GGTATCTGCG 7920 CTCTGCTGAA GCCAGTTACC TTCGGAAAAA GAGTTGGTAG CTCTTGATCC GGCAAACAAA 7980 CCACCGCTGG TAGCGGTGGT TTTTTTGTTT GCAAGCAGCA GATTACGCGC AGAAAAAAAG 8040 GATCTCAAGA AGATCCTTTG ATCTTTTCTA CGGGGTCTGA CGCTCAGTGG AACGAAAACT 8100 CACGTTAAGG GATTTTGGTC ATGAGATTAT CAAAAAGGAT CTTCACCTAG ATCCTTTTAA 8160 ATTAAAAATG AAGTTTTAAA TCAATCTAAA GTATATATGA GTAAACTTGG TCTGACAGTT 8220 ACCAATGCTT AATCAGTGAG GCACCTATCT CAGCGATCTG TCTATTTCGT TCATCCATAG 8280 TTGCCTGACT CCCCGTCGTG TAGATAACTA CGATACGGGA GGGCTTACCA TCTGGCCCCA 8340 GTGCTGCAAT GATACCGCGA GACCCACGCT CACCGGCTCC AGATTTATCA GCAATAAACC 8400 AGCCAGCCGG AAGGGCCGAG CGCAGAAGTG GTCCTGCAAC TTTATCCGCC TCCATCCAGT 8460 CTATTAATTG TTGCCGGGAA GCTAGAGTAA GTAGTTCGCC AGTTAATAGT TTGCGCAACG 8520 TTGTTGCCAT TGCTACAGGC ATCGTGGTGT CACGCTCGTC GTTTGGTATG GCTTCATTCA 8580 GCTCCGGTTC CCAACGATCA AGGCGAGTTA CATGATCCCC CATGTTGTGC AAAAAAGCGG 8640 TTAGCTCCTT CGGTCCTCCG ATCGTTGTCA GAAGTAAGTT GGCCGCAGTG TTATCACTCA 8700 TGGTTATGGC AGCACTGCAT AATTCTCTTA CTGTCATGCC ATCCGTAAGA TGCTTTTCTG 8760 TGACTGGTGA GTACTCAACC AAGTCATTCT GAGAATAGTG TATGCGGCGA CCGAGTTGCT 8820 CTTGCCCGGC GTCAATACGG GATAATACCG CGCCACATAG CAGAACTTTA AAAGTGCTCA 8880 TCATTGGAAA ACGTTCTTCG GGGCGAAAAC TCTCAAGGAT CTTACCGCTG TTGAGATCCA 8940 GGTCGATGTA ACCCACTCGT GCACCCAACT GATCTTCAGC ATCTTTTACT TTCACCAGCG 9000 TTTCTGGGTG AGCAAAAACA GGAAGGCAAA ATGCCGCAAA AAAGGGAATA AGGGCGACAC 9060 GGAAATGTTG AATACTCATA CTCTTCCTTT TTCAATATTA TTGAAGCATT TATCAGGGTT 9120 ATTGTCTCAT GAGCGGATAC ATATTTGAAT GTATTTAGAA AAATAAACAA ATAGGGGTTC 9180 CGCGCACATT TCCCCGAAAA GTGCCACCT 9209 (2) INFORMATION FOR SEQ ID NO: 3: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 384 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: Not Relevant (D) TOPOLOGY: Not Relevant (ii) MOLECULE TYPE: peptide (viii) POSITION IN GENOME: (A) CHROMOSOME/SEGMENT: murine variable region light chain (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..384 (ix) FEATURE: (A) NAME/KEY: mat_peptide (B) LOCATION: 67..384 (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 3: ATG GAT TTT CAG GTG CAG ATT ATC AGC TTC CTG CTA ATC AGT GCT TCA 48 Met Asp Phe Gln Val Gln Ile Ile Ser Phe Leu Leu Ile Ser Ala Ser -22 -20 -15 -10 GTC ATA ATG TCC AGA GGA CAA ATT GTT CTC TCC CAG TCT CCA GCA ATC 96 Val Ile Met Ser Arg Gly Gln Ile Val Leu Ser Gln Ser Pro Ala Ile -5 1 5 10 CTG TCT GCA TCT CCA GGG GAG AAG GTC ACA ATG ACT TGC AGG GCC AGC 144 Leu Ser Ala Ser Pro Gly Glu Lys Val Thr Met Thr Cys Arg Ala Ser 15 20 25 TCA AGT GTA AGT TAC ATC CAC TGG TTC CAG CAG AAG CCA GGA TCC TCC 192 Ser Ser Val Ser Tyr Ile His Trp Phe Gln Gln Lys Pro Gly Ser Ser 30 35 40 CCC AAA CCC TGG ATT TAT GCC ACA TCC AAC CTG GCT TCT GGA GTC CCT 240 Pro Lys Pro Trp Ile Tyr Ala Thr Ser Asn Leu Ala Ser Gly Val Pro 45 50 55 GTT CGC TTC AGT GGC AGT GGG TCT GGG ACT TCT TAC TCT CTC ACC ATC 288 Val Arg Phe Ser Gly Ser Gly Ser Gly Thr Ser Tyr Ser Leu Thr Ile 60 65 70 AGC AGA GTG GAG GCT GAA GAT GCT GCC ACT TAT TAC TGC CAG CAG TGG 336 Ser Arg Val Glu Ala Glu Asp Ala Ala Thr Tyr Tyr Cys Gln Gln Trp 75 80 85 90 ACT AGT AAC CCA CCC ACG TTC GGA GGG GGG ACC AAG CTG GAA ATC AAA 384 Thr Ser Asn Pro Pro Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 95 100 105 (2) INFORMATION FOR SEQ ID NO: 4: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 128 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 4: Met Asp Phe Gln Val Gln Ile Ile Ser Phe Leu Leu Ile Ser Ala Ser -22 -20 -15 -10 Val Ile Met Ser Arg Gly Gln Ile Val Leu Ser Gln Ser Pro Ala Ile -5 1 5 10 Leu Ser Ala Ser Pro Gly Glu Lys Val Thr Met Thr Cys Arg Ala Ser 15 20 25 Ser Ser Val Ser Tyr Ile His Trp Phe Gln Gln Lys Pro Gly Ser Ser 30 35 40 Pro Lys Pro Trp Ile Tyr Ala Thr Ser Asn Leu Ala Ser Gly Val Pro 45 50 55 Val Arg Phe Ser Gly Ser Gly Ser Gly Thr Ser Tyr Ser Leu Thr Ile 60 65 70 Ser Arg Val Glu Ala Glu Asp Ala Ala Thr Tyr Tyr Cys Gln Gln Trp 75 80 85 90 Thr Ser Asn Pro Pro Thr Phe Gly Gly Gly Thr Lys Leu Glu Ile Lys 95 100 105 (2) INFORMATION FOR SEQ ID NO: 5: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 420 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: Not Relevant (D) TOPOLOGY: Not Relevant (ii) MOLECULE TYPE: peptide (viii) POSITION IN GENOME: (A) CHROMOSOME/SEGMENT: murine variable region heavy chain (ix) FEATURE: (A) NAME/KEY: CDS (B) LOCATION: 1..420 (ix) FEATURE: (A) NAME/KEY: mat_peptide (B) LOCATION: 58..420 (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 5: ATG GGT TGG AGC CTC ATC TTG CTC TTC CTT GTC GCT GTT GCT ACG CGT 48 Met Gly Trp Ser Leu Ile Leu Leu Phe Leu Val Ala Val Ala Thr Arg -19 -15 -10 -5 GTC CTG TCC CAG GTA CAA CTG CAG CAG CCT GGG GCT GAG CTG GTG AAG 96 Val Leu Ser Gln Val Gln Leu Gln Gln Pro Gly Ala Glu Leu Val Lys 1 5 10 GCT GGG GCC TCA GTG AAG ATG TCC TGC AAG GCT TCT GGC TAC ACA TTT 144 Ala Gly Ala Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe 15 20 25 ACC AGT TAC AAT ATG CAC TGG GTA AAA CAG ACA CCT GGT CGG GGC CTG 192 Thr Ser Tyr Asn Met His Trp Val Lys Gln Thr Pro Gly Arg Gly Leu 30 35 40 45 GAA TGG ATT GGA GCT ATT TAT CCC GGA AAT GGT GAT ACT TCC TAC AAT 240 Glu Trp Ile Gly Ala Ile Tyr Pro Gly Asn Gly Asp Thr Ser Tyr Asn 50 55 60 CAG AAG TTC AAA GGC AAG GCC ACA TTG ACT GCA GAC AAA TCC TCC AGC 288 Gln Lys Phe Lys Gly Lys Ala Thr Leu Thr Ala Asp Lys Ser Ser Ser 65 70 75 ACA GCC TAC ATG CAG CTC AGC AGC CTG ACA TCT GAG GAC TCT GCG GTC 336 Thr Ala Tyr Met Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val 80 85 90 TAT TAC TGT GCA AGA TCG ACT TAC TAC GGC GGT GAC TGG TAC TTC AAT 384 Tyr Tyr Cys Ala Arg Ser Thr Tyr Tyr Gly Gly Asp Trp Tyr Phe Asn 95 100 105 GTC TGG GGC GCA GGG ACC ACG GTC ACC GTC TCT GCA 420 Val Trp Gly Ala Gly Thr Thr Val Thr Val Ser Ala 110 115 120 (2) INFORMATION FOR SEQ ID NO: 6: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 140 amino acids (B) TYPE: amino acid (D) TOPOLOGY: linear (ii) MOLECULE TYPE: protein (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 6: Met Gly Trp Ser Leu Ile Leu Leu Phe Leu Val Ala Val Ala Thr Arg -19 -15 -10 -5 Val Leu Ser Gln Val Gln Leu Gln Gln Pro Gly Ala Glu Leu Val Lys 1 5 10 Ala Gly Ala Ser Val Lys Met Ser Cys Lys Ala Ser Gly Tyr Thr Phe 15 20 25 Thr Ser Tyr Asn Met His Trp Val Lys Gln Thr Pro Gly Arg Gly Leu 30 35 40 45 Glu Trp Ile Gly Ala Ile Tyr Pro Gly Asn Gly Asp Thr Ser Tyr Asn 50 55 60 Gln Lys Phe Lys Gly Lys Ala Thr Leu Thr Ala Asp Lys Ser Ser Ser 65 70 75 Thr Ala Tyr Met Gln Leu Ser Ser Leu Thr Ser Glu Asp Ser Ala Val 80 85 90 Tyr Tyr Cys Ala Arg Ser Thr Tyr Tyr Gly Gly Asp Trp Tyr Phe Asn 95 100 105 Val Trp Gly Ala Gly Thr Thr Val Thr Val Ser Ala 110 115 120 (2) INFORMATION FOR SEQ ID NO: 7: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 27 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: single (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 7: GGGAGCTTGG ATCGATCCTC TATGGTT 27 (2) INFORMATION FOR SEQ ID NO: 8: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 47 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: single (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 8: ATCACAGATC TCTCACCATG GATTTTCAGG TGCAGATTAT CAGCTTC 47 (2) INFORMATION FOR SEQ ID NO: 9: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 30 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: single (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iv) ANTI-SENSE: YES (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 9: TGCAGCATCC GTACGTTTGA TTTCCAGCTT 30 (2) INFORMATION FOR SEQ ID NO: 10: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 27 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: single (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iv) ANTI-SENSE: NO (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 10: GCGGCTCCCA CGCGTGTCCT GTCCCAG 27 (2) INFORMATION FOR SEQ ID NO: 11: (i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 29 base pairs (B) TYPE: nucleic acid (C) STRANDEDNESS: single (D) TOPOLOGY: linear (ii) MOLECULE TYPE: DNA (genomic) (iv) ANTI-SENSE: YES (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 11: GGSTGTTGTG CTAGCTGMRG AGACRGTGA 29
Claims (20)
1. A method for the treatment of B cell lymphoma comprising the step of administering a therapeutically effective amount of at least one immunologically active, chimeric anti-CD20 antibody to a human.
2. The method of claim 1 wherein the amount of said antibody administered to said human is between about 0.001 to about 30 milligrams of antibody per kilogram body weight of said human (“mg/kg”).
3. The method of claim 1 wherein said antibody is derived from a transfectoma comprising anti-CD20 in TCAE 8 as deposited with the American Type Culture Collection as part of ATCC deposit number 69119.
4. The method of claim 1 further comprising the step of administering a second therapeutically effective amount of at least one immunologically active, chimeric anti-CD20 antibody.
5. The method of claim 4 wherein said additional administration of said antibody to said human occurs within about seven days of said first administration of said antibody to said human.
6. A method for the treatment of B cell lymphoma comprising the steps of:
1) administering, at a first administration period, a first therapeutically effective amount of immunologically active, chimeric anti-CD20 antibody to a human;
2) administering at a second subsequent administration period, a second therapeutically effective amount of said antibody;
3) administering, at a third subsequent administration period, a third therapeutically effective amount of said antibody.
7. The method of claim 6 wherein said first, second and third therapeutically effective amount of said antibody is between about 0.001 mg/kg to about 30 mg/kg.
8. The method of claim 6 wherein said second administration period is within about seven days of said first administration period.
9. The method of claim 6 wherein said third administration period is within about fourteen days of said first administration period.
10. The method of claim 6 wherein said antibody is derived from a transfectoma comprising anti-CD20 in TCAE 8 (within ATCC deposit number 691193).
11. Immunologically active, chimeric anti-CD20 produced from a transfectoma comprising anti-CD20 in TCAE 8 (within ATCC deposit number 69119).
12. A hybridoma which secretes anti-CD20 antibody, said hybridoma being identified by American Type Culture Collection deposit number HB 11388.
13. A monoclonal antibody secreted from the hybridoma of claim 12 .
14. A radiolabeled antibody according to claim 12 .
15. The radiolabeled antibody of claim 14 where the radiolabel is selected from the group consisting of yttrium [90]; indium [111], and iodine [131].
16. A method for the treatment of B cell lymphoma comprising of steps of administering a therapeutically effective amount of the antibody of claim 14 to a human.
17. The method of claim 16 when the radiolabel of said antibody is yttrium [90].
18. A method for the treatment of B cell lymphoma comprising the steps of:
1) administering, at a first administration period, an immunology active chimeric anti-CD20 antibody to human; and
2) administering, at a second administration period, a radiolabeled anti-CD20 antibody to said human.
19. The method of claim 18 when said chimeric anti-CD20 is derived from a transfectoma comprising anti-CD20 in TCAE 8 as deposited with the American Type Culture Collection as part of ATCC deposit number 69119.
20. The method of claim 8 when said radiolabeled antibody comprises a monoclonal antibody secreted from a hybridoma identified by American Type Culture Collection deposit number HB 11388.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/096,964 US20030082172A1 (en) | 1992-11-13 | 2002-03-14 | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US97889192A | 1992-11-13 | 1992-11-13 | |
US08/475,815 US6399061B1 (en) | 1992-11-13 | 1995-06-07 | Chimeric and radiolabelled antibodies specific to human CD20 antigen and use thereof for treatment of B-cell lymphoma |
US10/096,964 US20030082172A1 (en) | 1992-11-13 | 2002-03-14 | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
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US08/475,815 Continuation US6399061B1 (en) | 1992-11-13 | 1995-06-07 | Chimeric and radiolabelled antibodies specific to human CD20 antigen and use thereof for treatment of B-cell lymphoma |
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US20030082172A1 true US20030082172A1 (en) | 2003-05-01 |
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US08/149,099 Expired - Lifetime US5736137A (en) | 1992-11-13 | 1993-11-03 | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US10/096,964 Abandoned US20030082172A1 (en) | 1992-11-13 | 2002-03-14 | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
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US08/149,099 Expired - Lifetime US5736137A (en) | 1992-11-13 | 1993-11-03 | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020197255A1 (en) * | 1992-11-13 | 2002-12-26 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabelled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US20030147885A1 (en) * | 1992-11-13 | 2003-08-07 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US20030206903A1 (en) * | 1998-08-11 | 2003-11-06 | Idec Pharmaceuticals Corporation | Combination therapies for B-cell lynphomas comprising administration of anti-CD20 antibody |
US20050053602A1 (en) * | 2003-08-29 | 2005-03-10 | Genentech, Inc. | Therapy of ocular disorders |
US20050070689A1 (en) * | 2001-08-03 | 2005-03-31 | Genentech, Inc. | Taci and br3 polypeptides and uses thereof |
US20050095243A1 (en) * | 2003-06-05 | 2005-05-05 | Genentech, Inc. | Combination therapy for B cell disorders |
US20050163775A1 (en) * | 2003-06-05 | 2005-07-28 | Genentech, Inc. | Combination therapy for B cell disorders |
US20050186206A1 (en) * | 2003-12-19 | 2005-08-25 | Genentech, Inc. | Detection of CD20 in therapy of autoimmune diseases |
US20050191297A1 (en) * | 2003-12-19 | 2005-09-01 | Genentech, Inc. | Detection of CD20 in transplant rejection |
US20050271658A1 (en) * | 2004-05-05 | 2005-12-08 | Genentech, Inc. | Preventing autoimmune disease |
US20060024295A1 (en) * | 2004-06-04 | 2006-02-02 | Genentech, Inc. | Method for treating lupus |
US20060034835A1 (en) * | 2002-12-16 | 2006-02-16 | Genentech, Inc. | Immunoglobulin variants and uses thereof |
US20060051345A1 (en) * | 2004-06-04 | 2006-03-09 | Genentech, Inc. | Method for treating multiple sclerosis |
US20060062787A1 (en) * | 2004-07-22 | 2006-03-23 | Genentech, Inc. | Method for treating Sjogren's syndrome |
US20060073146A1 (en) * | 2000-02-16 | 2006-04-06 | Genentech, Inc. | Uses of agonists and antagonists to modulate activity of TNF-related molecules |
US20060110387A1 (en) * | 2004-10-05 | 2006-05-25 | Genentech, Inc. | Method for treating vasculitis |
US20060188495A1 (en) * | 2005-01-13 | 2006-08-24 | Genentech, Inc. | Treatment method |
US20060233797A1 (en) * | 2005-04-15 | 2006-10-19 | Genentech, Inc. | Treatment of inflammatory bowel disease (IBD) |
US20060246004A1 (en) * | 2005-02-07 | 2006-11-02 | Genentech, Inc. | Antibody variants and uses thereof |
US20060263349A1 (en) * | 2005-05-20 | 2006-11-23 | Genentech, Inc. | Pretreatment of a biological sample from an autoimmune disease subject |
US20060263355A1 (en) * | 2005-02-28 | 2006-11-23 | Joanne Quan | Treatment of bone disorders |
US20070212733A1 (en) * | 2005-11-23 | 2007-09-13 | Genentech, Inc. | Methods and compositions related to B cell assays |
US20080171036A1 (en) * | 2002-07-25 | 2008-07-17 | Anan Chuntharapai | Taci antibodies and uses thereof |
US20090074760A1 (en) * | 1998-11-09 | 2009-03-19 | Grillo-Lopez Antonio J | Use of chimeric anti-cd20 antibody as in vitro or in vivo purging agent in patients receiving bmt or pbsc transplant |
EP2077281A1 (en) | 2008-01-02 | 2009-07-08 | Bergen Teknologioverforing AS | Anti-CD20 antibodies or fragments thereof for the treatment of chronic fatigue syndrome |
US7682612B1 (en) | 1998-11-09 | 2010-03-23 | Biogen Idec Inc. | Treatment of hematologic malignancies associated with circulating tumor cells using chimeric anti-CD20 antibody |
US20100158903A1 (en) * | 2008-09-16 | 2010-06-24 | Craig Smith | Methods for treating progressive multiple sclerosis |
WO2010075249A2 (en) | 2008-12-22 | 2010-07-01 | Genentech, Inc. | A method for treating rheumatoid arthritis with b-cell antagonists |
EP2233149A1 (en) | 2007-10-16 | 2010-09-29 | ZymoGenetics, Inc. | Combination of BLYS inhibition and anti-CD20 agents for treatment of autoimmune disease |
US7820161B1 (en) | 1999-05-07 | 2010-10-26 | Biogen Idec, Inc. | Treatment of autoimmune diseases |
WO2011019619A1 (en) | 2009-08-11 | 2011-02-17 | Genentech, Inc. | Production of proteins in glutamine-free cell culture media |
US7914785B2 (en) | 2008-01-02 | 2011-03-29 | Bergen Teknologieverforing As | B-cell depleting agents, like anti-CD20 antibodies or fragments thereof for the treatment of chronic fatigue syndrome |
US20110142836A1 (en) * | 2009-01-02 | 2011-06-16 | Olav Mella | B-cell depleting agents for the treatment of chronic fatigue syndrome |
WO2011100403A1 (en) | 2010-02-10 | 2011-08-18 | Immunogen, Inc | Cd20 antibodies and uses thereof |
EP2586788A1 (en) | 2007-07-09 | 2013-05-01 | Genentech, Inc. | Prevention of disulfide bond reduction during recombinant production of polypeptides |
US8557244B1 (en) | 1999-08-11 | 2013-10-15 | Biogen Idec Inc. | Treatment of aggressive non-Hodgkins lymphoma with anti-CD20 antibody |
WO2017055542A1 (en) | 2015-10-02 | 2017-04-06 | F. Hoffmann-La Roche Ag | Bispecific anti-human cd20/human transferrin receptor antibodies and methods of use |
US10280227B2 (en) | 2009-09-11 | 2019-05-07 | Genentech, Inc. | Highly concentrated pharmaceutical formulations |
US10450379B2 (en) | 2005-11-15 | 2019-10-22 | Genetech, Inc. | Method for treating joint damage |
US10941205B2 (en) | 2015-10-02 | 2021-03-09 | Hoffmann-La Roche Inc. | Bispecific anti-human A-beta/human transferrin receptor antibodies and methods of use |
US11584793B2 (en) | 2015-06-24 | 2023-02-21 | Hoffmann-La Roche Inc. | Anti-transferrin receptor antibodies with tailored affinity |
Families Citing this family (671)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4816567A (en) | 1983-04-08 | 1989-03-28 | Genentech, Inc. | Recombinant immunoglobin preparations |
US5736137A (en) * | 1992-11-13 | 1998-04-07 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US5595721A (en) | 1993-09-16 | 1997-01-21 | Coulter Pharmaceutical, Inc. | Radioimmunotherapy of lymphoma using anti-CD20 |
US5885574A (en) * | 1994-07-26 | 1999-03-23 | Amgen Inc. | Antibodies which activate an erythropoietin receptor |
US8771694B2 (en) * | 1994-08-12 | 2014-07-08 | Immunomedics, Inc. | Immunoconjugates and humanized antibodies specific for B-cell lymphoma and leukemia cells |
WO1996004925A1 (en) * | 1994-08-12 | 1996-02-22 | Immunomedics, Inc. | Immunoconjugates and humanized antibodies specific for b-cell lymphoma and leukemia cells |
US20030180290A1 (en) * | 1995-06-07 | 2003-09-25 | Idec Pharmaceuticals Corporation | Anti-CD80 antibody having ADCC activity for ADCC mediated killing of B cell lymphoma cells alone or in combination with other therapies |
US6373497B1 (en) | 1999-05-14 | 2002-04-16 | Zight Corporation | Time sequential lookup table arrangement for a display |
US7033589B1 (en) * | 1997-02-20 | 2006-04-25 | Biogen Idec Ma Inc. | γ-1 anti-human CD23 monoclonal antibodies and use thereof as therapeutics |
US6893636B2 (en) * | 1997-02-20 | 2005-05-17 | Biogen Idec Ma Inc. | Gamma-1 and gamma-3 anti-human CD23 monoclonal antibodies and use thereof as therapeutics |
US6171586B1 (en) * | 1997-06-13 | 2001-01-09 | Genentech, Inc. | Antibody formulation |
US6991790B1 (en) | 1997-06-13 | 2006-01-31 | Genentech, Inc. | Antibody formulation |
US6177545B1 (en) * | 1997-09-02 | 2001-01-23 | Insight Strategy & Marketing Ltd. | Heparanase specific molecular probes and their use in research and medical applications |
US6699672B1 (en) * | 1997-09-02 | 2004-03-02 | Insight Biopharmaceuticals Ltd. | Heparanase specific molecular probes and their use research and medical applications |
US20020088019A1 (en) * | 1997-09-02 | 2002-07-04 | Oron Yacoby-Zeevi | Methods of and pharmaceutical compositions for improving implantation of embryos |
US6562950B2 (en) * | 1997-09-02 | 2003-05-13 | Insight Strategy & Marketing Ltd. | Heparanase activity neutralizing anti-heparanase monoclonal antibody |
US20040213789A1 (en) * | 1997-09-02 | 2004-10-28 | Oron Yacoby-Zeevi | Heparanase activity neutralizing anti-heparanase monoclonal antibody and other anti-heparanase antibodies |
US20010006630A1 (en) * | 1997-09-02 | 2001-07-05 | Oron Yacoby-Zeevi | Introducing a biological material into a patient |
US20030161823A1 (en) * | 1998-08-31 | 2003-08-28 | Neta Ilan | Therapeutic and cosmetic uses of heparanases |
US6242195B1 (en) | 1998-04-02 | 2001-06-05 | Genentech, Inc. | Methods for determining binding of an analyte to a receptor |
US6528624B1 (en) * | 1998-04-02 | 2003-03-04 | Genentech, Inc. | Polypeptide variants |
US6194551B1 (en) | 1998-04-02 | 2001-02-27 | Genentech, Inc. | Polypeptide variants |
PT2180007E (en) * | 1998-04-20 | 2013-11-25 | Roche Glycart Ag | Glycosylation engineering of antibodies for improving antibody-dependent cellular cytotoxicity |
US20030217375A1 (en) * | 1998-08-31 | 2003-11-20 | Eyal Zcharia | Transgenic animals expressing heparanase and uses thereof |
US6224866B1 (en) | 1998-10-07 | 2001-05-01 | Biocrystal Ltd. | Immunotherapy of B cell involvement in progression of solid, nonlymphoid tumors |
US20010033839A1 (en) * | 1999-10-04 | 2001-10-25 | Emilio Barbera-Guillem | Vaccine and immunotherapy for solid nonlymphoid tumor and related immune dysregulation |
WO2000029431A1 (en) * | 1998-11-17 | 2000-05-25 | Tanox, Inc. | Bispecific molecules cross-linking itim and itam for therapy |
CA2359067C (en) | 1999-01-15 | 2017-03-14 | Genentech, Inc. | Polypeptide variants with altered effector function |
US7183387B1 (en) | 1999-01-15 | 2007-02-27 | Genentech, Inc. | Polypeptide variants with altered effector function |
US6737056B1 (en) * | 1999-01-15 | 2004-05-18 | Genentech, Inc. | Polypeptide variants with altered effector function |
MY133346A (en) * | 1999-03-01 | 2007-11-30 | Biogen Inc | Kit for radiolabeling ligands with yttrium-90 |
EP1157118A4 (en) * | 1999-03-01 | 2002-07-17 | Insight Strategy & Marketing | Polynucleotide encoding a polypeptide having heparanase activity and expression of same in genetically modified cells |
US20020102208A1 (en) | 1999-03-01 | 2002-08-01 | Paul Chinn | Radiolabeling kit and binding assay |
EP1645290A1 (en) | 1999-05-07 | 2006-04-12 | Genentech, Inc. | Treatment of autoimmune diseases with antagonists which bind to B cell surface markers |
KR20020020730A (en) * | 1999-06-09 | 2002-03-15 | 오트리브 데이비스 더블유 | Immunotherapy of autoimmune disorders using antibodies which target B-cells |
ITMI991299A1 (en) * | 1999-06-11 | 2000-12-11 | Consiglio Nazionale Ricerche | USE OF ANTIBODIES AGAINST SURFACE ANTIGENS FOR THE TREATMENT OF DISEASE TRANSPLANT AGAINST GUESTS |
US20040013667A1 (en) * | 1999-06-25 | 2004-01-22 | Genentech, Inc. | Treatment with anti-ErbB2 antibodies |
US7041292B1 (en) | 1999-06-25 | 2006-05-09 | Genentech, Inc. | Treating prostate cancer with anti-ErbB2 antibodies |
US20030086924A1 (en) * | 1999-06-25 | 2003-05-08 | Genentech, Inc. | Treatment with anti-ErbB2 antibodies |
ES2282120T3 (en) * | 1999-06-25 | 2007-10-16 | Genentech, Inc. | TREATMENT OF PROSTATE CANCER WITH ANTI-ERBB2 ANTIBODIES. |
US6949245B1 (en) * | 1999-06-25 | 2005-09-27 | Genentech, Inc. | Humanized anti-ErbB2 antibodies and treatment with anti-ErbB2 antibodies |
HUP0202238A3 (en) * | 1999-07-12 | 2004-05-28 | Idec Pharmaceuticals Inc San D | Blocking immune response to a foreign antigen using an antagonist which binds to cd20 |
US6451284B1 (en) * | 1999-08-11 | 2002-09-17 | Idec Pharmaceuticals Corporation | Clinical parameters for determining hematologic toxicity prior to radioimmunotheraphy |
WO2001013945A1 (en) * | 1999-08-23 | 2001-03-01 | Biocrystal Ltd. | Methods and compositions for immunotherapy of b cell involvement in promotion of a disease condition comprising multiple sclerosis |
CA2390412A1 (en) * | 1999-11-08 | 2001-05-17 | Idec Pharmaceuticals Corporation | Treatment of b cell malignancies using anti-cd40l antibodies in combination with anti-cd20 antibodies and/or chemotherapeutics and radiotherapy |
US20020028178A1 (en) * | 2000-07-12 | 2002-03-07 | Nabil Hanna | Treatment of B cell malignancies using combination of B cell depleting antibody and immune modulating antibody related applications |
US20030185796A1 (en) * | 2000-03-24 | 2003-10-02 | Chiron Corporation | Methods of therapy for non-hodgkin's lymphoma |
AU8729101A (en) * | 2000-03-31 | 2001-10-15 | Idec Pharma Corp | Combined use of anti-cytokine antibodies or antagonists and anti-CD20 for the treatment of B cell lymphoma |
WO2001077342A1 (en) * | 2000-04-11 | 2001-10-18 | Genentech, Inc. | Multivalent antibodies and uses therefor |
CA2399940A1 (en) | 2000-04-13 | 2001-10-25 | The Rockefeller University | Enhancement of antibody-mediated immune responses |
AU2001259142C1 (en) * | 2000-04-25 | 2006-11-23 | Biogen Idec Inc. | Intrathecal administration of rituximab for treatment of central nervous system lymphomas |
EP1280923A2 (en) * | 2000-04-28 | 2003-02-05 | Millennium Pharmaceuticals, Inc. | 14094, a human trypsin family member and uses thereof |
DK1282443T3 (en) | 2000-05-19 | 2010-01-04 | Genentech Inc | Gene detection assay to improve the likelihood of an effective response to an ErbB antagonist cancer therapy |
AU2001268363B2 (en) * | 2000-06-20 | 2006-08-17 | Biogen Idec Inc. | Treatment of B cell associated diseases |
JP2003535908A (en) * | 2000-06-22 | 2003-12-02 | アイデック ファーマスーティカルズ コーポレイション | Bispecific fusion proteins and methods of use to enhance effector cells that kill target cells |
US20060034830A1 (en) * | 2000-06-28 | 2006-02-16 | Gerngross Tillman U | Immunoglobulins comprising predominantly a GalGlcNAcMan5GLcNAc2 glycoform |
US20060024304A1 (en) * | 2000-06-28 | 2006-02-02 | Gerngross Tillman U | Immunoglobulins comprising predominantly a Man5GlcNAc2 glycoform |
US20060034828A1 (en) * | 2000-06-28 | 2006-02-16 | Gerngross Tillman U | Immunoglobulins comprising predominantly a GlcNAcMAN5GLCNAC2 glycoform |
US20060029604A1 (en) * | 2000-06-28 | 2006-02-09 | Gerngross Tillman U | Immunoglobulins comprising predominantly a GlcNAc2Man3GlcNAc2 glycoform |
IL153764A0 (en) * | 2000-07-12 | 2003-07-06 | Idec Pharma Corp | Treatment of b cell malignancies using combination of b cell depleting antibody and immune modulating antibody related applications |
US20020058029A1 (en) * | 2000-09-18 | 2002-05-16 | Nabil Hanna | Combination therapy for treatment of autoimmune diseases using B cell depleting/immunoregulatory antibody combination |
US20020128448A1 (en) * | 2000-10-20 | 2002-09-12 | Idec Pharmaceuticals Corporation | Variant IgG3 Rituxan and therapeutic use thereof |
US7507724B2 (en) | 2001-01-16 | 2009-03-24 | Sloan-Kettering Institute For Cancer Research | Therapy-enhancing glucan |
US7906492B2 (en) * | 2001-01-16 | 2011-03-15 | Sloan-Kettering Institute For Cancer Research | Therapy-enhancing glucan |
IL156955A0 (en) * | 2001-01-17 | 2004-02-08 | Genecraft Inc | Binding domain-immunoglobulin fusion proteins |
US7829084B2 (en) * | 2001-01-17 | 2010-11-09 | Trubion Pharmaceuticals, Inc. | Binding constructs and methods for use thereof |
US20030133939A1 (en) * | 2001-01-17 | 2003-07-17 | Genecraft, Inc. | Binding domain-immunoglobulin fusion proteins |
AU2008200400B2 (en) * | 2001-01-17 | 2012-06-07 | Aptevo Research And Development Llc | Binding domain-immunoglobulin fusion proteins |
US7754208B2 (en) * | 2001-01-17 | 2010-07-13 | Trubion Pharmaceuticals, Inc. | Binding domain-immunoglobulin fusion proteins |
US20030103971A1 (en) * | 2001-11-09 | 2003-06-05 | Kandasamy Hariharan | Immunoregulatory antibodies and uses thereof |
US20020159996A1 (en) * | 2001-01-31 | 2002-10-31 | Kandasamy Hariharan | Use of CD23 antagonists for the treatment of neoplastic disorders |
US20030211107A1 (en) * | 2002-01-31 | 2003-11-13 | Kandasamy Hariharan | Use of CD23 antagonists for the treatment of neoplastic disorders |
JP2005503999A (en) | 2001-01-31 | 2005-02-10 | アイデック ファーマスーティカルズ コーポレイション | Use of CD23 antagonists for the treatment of neoplastic diseases |
US20070065436A1 (en) * | 2001-01-31 | 2007-03-22 | Biogen Idec Inc. | Anti-cd80 antibody having adcc activity for adcc mediated killing of b cell lymphoma cells alone or in combination with other therapies |
EP1372724A2 (en) | 2001-01-31 | 2004-01-02 | Idec Pharmaceuticals Corporation | Use of immunoregulatory antibodies in the treatment of neoplastic disorders |
CA2442801A1 (en) * | 2001-04-02 | 2002-10-10 | Idec Pharmaceutical Corporation | Recombinant antibodies coexpressed with gntiii |
JP4679035B2 (en) * | 2001-04-02 | 2011-04-27 | ジェネンテック, インコーポレイテッド | Combination therapy |
US20040136908A1 (en) * | 2001-04-09 | 2004-07-15 | Olson William C. | Anti-cd19 immunotoxins |
US20020193569A1 (en) * | 2001-06-04 | 2002-12-19 | Idec Pharmaceuticals Corporation | Bispecific fusion protein and method of use for enhancing effector cell killing of target cells |
WO2002101019A2 (en) * | 2001-06-13 | 2002-12-19 | Genentech, Inc. | Methods of culturing animal cells and polypeptide production in animal cells |
CA2455365C (en) | 2001-08-03 | 2014-07-29 | Glycart Biotechnology Ag | Antibody glycosylation variants having increased antibody-dependent cellular cytotoxicity |
AU2002326581A1 (en) * | 2001-08-10 | 2003-03-03 | University Of Virginia Patent Foundation | Enhancing the efficacy of immunotherapies by supplementing with complement |
US7214428B2 (en) * | 2001-09-17 | 2007-05-08 | Invitrogen Corporation | Highly luminescent functionalized semiconductor nanocrystals for biological and physical applications |
US7205048B2 (en) * | 2001-09-17 | 2007-04-17 | Invitrogen Corporation | Functionalized fluorescent nanocrystal compositions and methods of making |
EP1456022B1 (en) * | 2001-09-17 | 2009-11-11 | Life Technologies Corporation | Nanocrystals |
EP1438583B1 (en) * | 2001-09-20 | 2009-09-16 | Board of Regents, The University of Texas System | Measuring circulating therapeutic antibody, antigen and antigen/antibody complexes using elisa assays |
EP2322229B1 (en) | 2001-10-10 | 2016-12-21 | Novo Nordisk A/S | Remodeling and glycoconjugation of Factor IX |
US8323903B2 (en) * | 2001-10-12 | 2012-12-04 | Life Technologies Corporation | Antibody complexes and methods for immunolabeling |
US20050069962A1 (en) | 2001-10-12 | 2005-03-31 | Archer Robert M | Antibody complexes and methods for immunolabeling |
US7151164B2 (en) | 2002-02-14 | 2006-12-19 | Immunomedics, Inc. | Anti-CD20 antibodies and fusion proteins thereof and methods of use |
JP4216720B2 (en) * | 2001-10-19 | 2009-01-28 | サントル・オスピタリエ・レジオナル・エ・ユニヴェルシタイル・ドゥ・トゥール | Methods and compositions for assessing antibody treatment response |
HUP0600342A3 (en) * | 2001-10-25 | 2011-03-28 | Genentech Inc | Glycoprotein compositions |
US6671189B2 (en) * | 2001-11-09 | 2003-12-30 | Minebea Co., Ltd. | Power converter having primary and secondary side switches |
CA2467363A1 (en) | 2001-11-16 | 2003-06-12 | Idec Pharmaceuticals Corporation | Polycistronic expression of antibodies |
US20060024292A1 (en) * | 2001-12-27 | 2006-02-02 | Gerngross Tillman U | Immunoglobulins comprising predominantly a Gal2GlcNAc2Man3GlcNAc2 glycoform |
ES2319636T3 (en) | 2002-02-05 | 2009-05-11 | Genentech, Inc. | PURIFICATION OF PROTEINS. |
JP2005517025A (en) | 2002-02-08 | 2005-06-09 | エクサイト セラピーズ, インコーポレイテッド | Compositions and methods for restoring immune responsiveness in patients with immunological deficiencies |
US8287864B2 (en) * | 2002-02-14 | 2012-10-16 | Immunomedics, Inc. | Structural variants of antibodies for improved therapeutic characteristics |
US20040002587A1 (en) * | 2002-02-20 | 2004-01-01 | Watkins Jeffry D. | Fc region variants |
IL163851A0 (en) * | 2002-03-01 | 2005-12-18 | Immunomedics Inc | Internalizing anti-cd74 antibodies and methods of use |
US20090042291A1 (en) * | 2002-03-01 | 2009-02-12 | Xencor, Inc. | Optimized Fc variants |
US8361464B2 (en) * | 2002-03-01 | 2013-01-29 | Immunomedics, Inc. | Anthracycline-Antibody Conjugates for Cancer Therapy |
US8093357B2 (en) * | 2002-03-01 | 2012-01-10 | Xencor, Inc. | Optimized Fc variants and methods for their generation |
US20040132101A1 (en) | 2002-09-27 | 2004-07-08 | Xencor | Optimized Fc variants and methods for their generation |
US20160279239A1 (en) | 2011-05-02 | 2016-09-29 | Immunomedics, Inc. | Subcutaneous administration of anti-cd74 antibody for systemic lupus erythematosus and autoimmune disease |
US20030180292A1 (en) * | 2002-03-14 | 2003-09-25 | Idec Pharmaceuticals | Treatment of B cell malignancies using anti-CD40L antibodies in combination with anti-CD20 antibodies and/or chemotherapeutics and radiotherapy |
DK1501369T3 (en) | 2002-04-26 | 2015-09-28 | Genentech Inc | Non-affinity purification of proteins |
US8187593B2 (en) * | 2002-08-14 | 2012-05-29 | Macrogenics, Inc. | FcγRIIB specific antibodies and methods of use thereof |
US8044180B2 (en) * | 2002-08-14 | 2011-10-25 | Macrogenics, Inc. | FcγRIIB specific antibodies and methods of use thereof |
US8193318B2 (en) * | 2002-08-14 | 2012-06-05 | Macrogenics, Inc. | FcγRIIB specific antibodies and methods of use thereof |
US8946387B2 (en) * | 2002-08-14 | 2015-02-03 | Macrogenics, Inc. | FcγRIIB specific antibodies and methods of use thereof |
US8968730B2 (en) | 2002-08-14 | 2015-03-03 | Macrogenics Inc. | FcγRIIB specific antibodies and methods of use thereof |
EP2364996B1 (en) | 2002-09-27 | 2016-11-09 | Xencor Inc. | Optimized FC variants and methods for their generation |
DK3284753T3 (en) * | 2002-10-17 | 2021-07-05 | Genmab As | HUMAN MONOCLONAL ANTIBODIES AGAINST CD20 FOR USE IN THE TREATMENT OF MULTIPLE SCLEROSE |
JP4033390B2 (en) * | 2002-10-30 | 2008-01-16 | 独立行政法人科学技術振興機構 | Immortalized natural killer cell line |
US20040258685A1 (en) * | 2002-11-21 | 2004-12-23 | Genentech, Inc. | Therapy of non-malignant diseases or disorders with anti-ErbB2 antibodies |
SE0203731D0 (en) * | 2002-12-13 | 2002-12-13 | Mitra Medical Technology Ab | Reagent |
US7960512B2 (en) * | 2003-01-09 | 2011-06-14 | Macrogenics, Inc. | Identification and engineering of antibodies with variant Fc regions and methods of using same |
EP1587540B1 (en) * | 2003-01-09 | 2021-09-15 | MacroGenics, Inc. | IDENTIFICATION AND ENGINEERING OF ANTIBODIES WITH VARIANT Fc REGIONS AND METHODS OF USING SAME |
JP4177123B2 (en) * | 2003-01-10 | 2008-11-05 | 富士通株式会社 | Wiring pattern verification method, program and apparatus |
US20040202666A1 (en) * | 2003-01-24 | 2004-10-14 | Immunomedics, Inc. | Anti-cancer anthracycline drug-antibody conjugates |
WO2004066933A2 (en) * | 2003-01-27 | 2004-08-12 | Biogen Idec Ma Inc. | Compositions and methods for treating cancer using igsf9 and liv-1 |
US8388955B2 (en) * | 2003-03-03 | 2013-03-05 | Xencor, Inc. | Fc variants |
US20090010920A1 (en) * | 2003-03-03 | 2009-01-08 | Xencor, Inc. | Fc Variants Having Decreased Affinity for FcyRIIb |
ES2322267T3 (en) | 2003-04-09 | 2009-06-18 | Genentech, Inc. | THERAPY OF AN AUTOINMUNOLOGICAL DISEASE IN A PATIENT THAT PRESENTS AN INAPPROPRIATE RESPONSE TO A TNF-ALFA INHIBITOR. |
TWI353991B (en) | 2003-05-06 | 2011-12-11 | Syntonix Pharmaceuticals Inc | Immunoglobulin chimeric monomer-dimer hybrids |
CN1802388B (en) * | 2003-05-09 | 2011-01-05 | 杜克大学 | CD20-specific antibodies and methods of employing same |
US20060269552A1 (en) * | 2003-06-09 | 2006-11-30 | Oron Yacoby-Zeevi | Heparanase activity neutralizing anti-heparanase monclonal antibody and other anti-heparanase antibodies |
US7754209B2 (en) | 2003-07-26 | 2010-07-13 | Trubion Pharmaceuticals | Binding constructs and methods for use thereof |
HUE050171T2 (en) | 2003-07-28 | 2020-11-30 | Genentech Inc | Reducing protein a leaching during protein a affinity chromatography |
CN1860367B (en) * | 2003-07-29 | 2010-05-26 | 健泰科生物技术公司 | Assay for human anti cd20 antibodies and uses therefor |
US8883147B2 (en) | 2004-10-21 | 2014-11-11 | Xencor, Inc. | Immunoglobulins insertions, deletions, and substitutions |
US9714282B2 (en) | 2003-09-26 | 2017-07-25 | Xencor, Inc. | Optimized Fc variants and methods for their generation |
US8101720B2 (en) * | 2004-10-21 | 2012-01-24 | Xencor, Inc. | Immunoglobulin insertions, deletions and substitutions |
US20060134105A1 (en) * | 2004-10-21 | 2006-06-22 | Xencor, Inc. | IgG immunoglobulin variants with optimized effector function |
US8399618B2 (en) | 2004-10-21 | 2013-03-19 | Xencor, Inc. | Immunoglobulin insertions, deletions, and substitutions |
SI1673398T1 (en) | 2003-10-16 | 2011-05-31 | Micromet Ag | Multispecific deimmunized cd3-binders |
ATE516819T1 (en) | 2003-11-04 | 2011-08-15 | Novartis Vaccines & Diagnostic | METHOD FOR TREATING B-CELL-RELATED CANCER |
TR201809892T4 (en) | 2003-11-05 | 2018-07-23 | Roche Glycart Ag | Antigen binding molecules with binding affinity to the Fc receptor and enhanced effector function. |
BRPI0416243A (en) * | 2003-11-05 | 2007-01-09 | Palingen Inc | method of treating a human patient suffering from a condition including b-cell hyperproliferation; pharmaceutical formulation for parenteral injection; kit for treating a patient suffering from a condition including b-cell hyperproliferation; and method for purging the bone marrow of a patient suffering from malignant B-cell lymphoid cancer prior to bone marrow reimplantation in the patient after myeloablative therapy |
AU2004290070A1 (en) | 2003-11-12 | 2005-05-26 | Biogen Idec Ma Inc. | Neonatal Fc receptor (FcRn)-binding polypeptide variants, dimeric Fc binding proteins and methods related thereto |
WO2005060520A2 (en) * | 2003-11-25 | 2005-07-07 | Dana-Farber Cancer Institute, Inc. | ANTIBODIES AGAINST SARS-CoV AND METHODS OF USE THEREOF |
FR2867982B1 (en) * | 2004-03-26 | 2007-07-20 | Jean Marie Andrieu | METHOD FOR AMPLIFYING THE ACTIVITY OF THERAPEUTIC VACCINES |
WO2005113003A2 (en) * | 2004-04-16 | 2005-12-01 | Genentech, Inc. | Method for augmenting b cell depletion |
WO2005108989A2 (en) * | 2004-04-16 | 2005-11-17 | Genentech, Inc. | Assay for antibodies |
US20060002930A1 (en) * | 2004-04-16 | 2006-01-05 | Genentech, Inc. | Treatment of disorders |
EP1740946B1 (en) * | 2004-04-20 | 2013-11-06 | Genmab A/S | Human monoclonal antibodies against cd20 |
WO2005113001A1 (en) | 2004-05-20 | 2005-12-01 | Zymogenetics, Inc. | Methods of treating cancer using il-21 and monoclonal antibody therapy |
US9109255B2 (en) * | 2004-06-18 | 2015-08-18 | The Board Of Trustees Of The Leland Stanford Junior University | Methods and compositions for determining responsiveness to antibody therapy |
BRPI0510674A (en) | 2004-07-15 | 2007-12-26 | Xencor Inc | optimized fc variants |
RU2442571C2 (en) | 2004-07-23 | 2012-02-20 | Дженентек, Инк. | The crystallization of antibodies or their fragments |
BRPI0514068B8 (en) | 2004-08-04 | 2021-05-25 | Applied Molecular Evolution Inc | anti-cd20 antibody, and, pharmaceutical composition |
WO2006033732A1 (en) * | 2004-08-17 | 2006-03-30 | Invitrogen Corporation | Synthesis of highly luminescent colloidal particles |
AU2005285347A1 (en) * | 2004-08-19 | 2006-03-23 | Genentech, Inc. | Polypeptide variants with altered effector function |
US7655229B2 (en) * | 2004-09-02 | 2010-02-02 | Chan Andrew C | Anti-FC-gamma RIIB receptor antibody and uses therefor |
US7662926B2 (en) * | 2004-09-02 | 2010-02-16 | Genentech, Inc. | Anti-Fc-gamma receptor antibodies, bispecific variants and uses therefor |
CN101052653A (en) * | 2004-09-02 | 2007-10-10 | 健泰科生物技术公司 | Anti-Fc-gamma RIIB receptor antibody and uses therefor |
MX2007002855A (en) * | 2004-09-08 | 2007-04-27 | Genentech Inc | Methods of using death receptor ligands and cd20 antibodies. |
EP1802660A2 (en) * | 2004-09-08 | 2007-07-04 | Genentech, Inc. | Methods of using death receptor ligands and cd20 antibodies |
JO3000B1 (en) | 2004-10-20 | 2016-09-05 | Genentech Inc | Antibody Formulations. |
EP1809720B1 (en) | 2004-10-29 | 2012-05-02 | Life Technologies Corporation | Functionalized fluorescent nanocrystals, and methods for their preparation and use |
AU2005335714B2 (en) | 2004-11-10 | 2012-07-26 | Macrogenics, Inc. | Engineering Fc antibody regions to confer effector function |
US8367805B2 (en) | 2004-11-12 | 2013-02-05 | Xencor, Inc. | Fc variants with altered binding to FcRn |
US8546543B2 (en) | 2004-11-12 | 2013-10-01 | Xencor, Inc. | Fc variants that extend antibody half-life |
US20070135620A1 (en) * | 2004-11-12 | 2007-06-14 | Xencor, Inc. | Fc variants with altered binding to FcRn |
DK2325207T3 (en) | 2004-11-12 | 2017-06-06 | Xencor Inc | Fc variants with altered binding to FcRn |
US8802820B2 (en) | 2004-11-12 | 2014-08-12 | Xencor, Inc. | Fc variants with altered binding to FcRn |
GB2420976B (en) * | 2004-11-19 | 2006-12-20 | Zvi Finkelstein | Therapeutic implant |
EP1824885A1 (en) * | 2004-12-17 | 2007-08-29 | Genentech, Inc. | Antiangiogenesis therapy of autoimmune disease in patients who have failed prior therapy |
US7691989B2 (en) | 2004-12-22 | 2010-04-06 | Genentech, Inc. | Methods for producing soluble membrane-spanning proteins |
EP1674479A1 (en) * | 2004-12-22 | 2006-06-28 | Memorial Sloan-Kettering Cancer Center | Modulation of Fc Gamma receptors for optimizing immunotherapy |
WO2006066912A2 (en) * | 2004-12-23 | 2006-06-29 | F. Hoffmann-La Roche Ag | Detection of a therapeutic antibody in an experimental animal |
EP1674457B1 (en) | 2004-12-23 | 2009-06-03 | GPC Biotech AG | Derivatives of squaric acid with anti-proliferative activity |
BRPI0606398A (en) | 2005-01-05 | 2008-03-11 | Biogen Idec Inc | cryptoligation molecules |
US20160355591A1 (en) | 2011-05-02 | 2016-12-08 | Immunomedics, Inc. | Subcutaneous anti-hla-dr monoclonal antibody for treatment of hematologic malignancies |
US8475794B2 (en) | 2005-04-06 | 2013-07-02 | Ibc Pharmaceuticals, Inc. | Combination therapy with anti-CD74 antibodies provides enhanced toxicity to malignancies, Autoimmune disease and other diseases |
US8349332B2 (en) | 2005-04-06 | 2013-01-08 | Ibc Pharmaceuticals, Inc. | Multiple signaling pathways induced by hexavalent, monospecific and bispecific antibodies for enhanced toxicity to B-cell lymphomas and other diseases |
US11254748B2 (en) | 2005-04-15 | 2022-02-22 | Macrogenics, Inc. | Covalent diabodies and uses thereof |
US9284375B2 (en) * | 2005-04-15 | 2016-03-15 | Macrogenics, Inc. | Covalent diabodies and uses thereof |
US9963510B2 (en) | 2005-04-15 | 2018-05-08 | Macrogenics, Inc. | Covalent diabodies and uses thereof |
EP3479844B1 (en) * | 2005-04-15 | 2023-11-22 | MacroGenics, Inc. | Covalent diabodies and uses thereof |
MX2007012989A (en) * | 2005-04-22 | 2008-01-11 | Genentech Inc | Method for treating dementia or alzheimer's disease with a cd20 antibody. |
EP1885396A2 (en) * | 2005-05-04 | 2008-02-13 | Quark Pharmaceuticals, Inc. | Recombinant antibodies against cd55 and cd59 and uses thereof |
BRPI0611445A2 (en) * | 2005-05-09 | 2010-09-08 | Glycart Biotechnology Ag | glycomanipulated antigen binding molecule, polynucleotide, polypeptide, vector, host cell, method for production, use and pharmaceutical composition |
EP1885757A2 (en) * | 2005-05-24 | 2008-02-13 | Avestha Gengraine Technologies Pvt. Ltd. | A method for the production of a monoclonal antibody to cd20 for the treatment of b-cell lymphoma |
EP1904104B1 (en) | 2005-07-08 | 2013-09-11 | Biogen Idec MA Inc. | Sp35 antibodies and uses thereof |
KR20080047540A (en) | 2005-07-25 | 2008-05-29 | 트루비온 파마슈티칼스, 인코포레이티드 | Single dose use of cd20-specific binding molecules |
ES2539250T3 (en) * | 2005-07-25 | 2015-06-29 | Emergent Product Development Seattle, Llc | Reduction of B cells through the use of CD37 specific binding and CD20 specific binding molecules |
US20080279850A1 (en) * | 2005-07-25 | 2008-11-13 | Trubion Pharmaceuticals, Inc. | B-Cell Reduction Using CD37-Specific and CD20-Specific Binding Molecules |
ES2579602T3 (en) * | 2005-08-10 | 2016-08-12 | Macrogenics, Inc. | Identification and modification of antibodies with Fc regions variants and methods of use of these |
US7612181B2 (en) | 2005-08-19 | 2009-11-03 | Abbott Laboratories | Dual variable domain immunoglobulin and uses thereof |
US20090215992A1 (en) * | 2005-08-19 | 2009-08-27 | Chengbin Wu | Dual variable domain immunoglobulin and uses thereof |
CA2618482C (en) | 2005-08-19 | 2014-10-07 | Abbott Laboratories | Dual variable domain immunoglobin and uses thereof |
EP2500353A3 (en) | 2005-08-19 | 2012-10-10 | Abbott Laboratories | Dual variable domain immunoglobulin and uses thereof |
CA2620515A1 (en) * | 2005-09-02 | 2007-03-08 | Glycofi, Inc. | Immunoglobulins comprising predominantly a glcnacman3glcnac2 glycoform |
EP1931709B1 (en) | 2005-10-03 | 2016-12-07 | Xencor, Inc. | Fc variants with optimized fc receptor binding properties |
US20070161089A1 (en) * | 2005-11-08 | 2007-07-12 | Genentech, Inc. | Method of Producing Pan-Specific Antibodies |
US20070136826A1 (en) * | 2005-12-02 | 2007-06-14 | Biogen Idec Inc. | Anti-mouse CD20 antibodies and uses thereof |
US8323644B2 (en) * | 2006-01-17 | 2012-12-04 | Sloan-Kettering Institute For Cancer Research | Therapy-enhancing glucan |
WO2007102200A1 (en) * | 2006-03-07 | 2007-09-13 | Osaka University | Anti-cd20 monoclonal antibody |
AU2007226752A1 (en) * | 2006-03-10 | 2007-09-20 | Macrogenics, Inc. | Identification and engineering of antibodies with variant heavy chains and methods of using same |
EP2004221A2 (en) | 2006-03-23 | 2008-12-24 | Novartis Pharma AG | Anti-tumor cell antigen antibody therapeutics |
EP3026123A1 (en) | 2006-04-27 | 2016-06-01 | Klaritos, Inc. | Method and kit for predicting antibody therapy |
US20080118978A1 (en) | 2006-04-28 | 2008-05-22 | Takashi Sato | Anti-tumor agent |
US7727525B2 (en) * | 2006-05-11 | 2010-06-01 | City Of Hope | Engineered anti-CD20 antibody fragments for in vivo targeting and therapeutics |
ES2489646T3 (en) | 2006-05-26 | 2014-09-02 | Macrogenics, Inc. | Humanized antibodies specific to Fc gamma RIIB and its methods of use |
SG172698A1 (en) * | 2006-06-12 | 2011-07-28 | Trubion Pharmaceuticals Inc | Single-chain multivalent binding proteins with effector function |
PT2029173T (en) | 2006-06-26 | 2016-11-02 | Macrogenics Inc | Fc riib-specific antibodies and methods of use thereof |
EP2032159B1 (en) * | 2006-06-26 | 2015-01-07 | MacroGenics, Inc. | Combination of fcgammariib antibodies and cd20-specific antibodies and methods of use thereof |
FR2902799B1 (en) | 2006-06-27 | 2012-10-26 | Millipore Corp | METHOD AND UNIT FOR PREPARING A SAMPLE FOR THE MICROBIOLOGICAL ANALYSIS OF A LIQUID |
US8636995B2 (en) * | 2006-08-31 | 2014-01-28 | Cardiac Pacemakers, Inc. | Methods and devices to regulate stem cell homing |
US8372399B2 (en) * | 2006-08-31 | 2013-02-12 | Cardiac Pacemakers, Inc. | Bispecific antibodies and agents to enhance stem cell homing |
US20080058922A1 (en) * | 2006-08-31 | 2008-03-06 | Cardiac Pacemakers, Inc. | Methods and devices employing vap-1 inhibitors |
US20080112961A1 (en) * | 2006-10-09 | 2008-05-15 | Macrogenics, Inc. | Identification and Engineering of Antibodies with Variant Fc Regions and Methods of Using Same |
US9382327B2 (en) | 2006-10-10 | 2016-07-05 | Vaccinex, Inc. | Anti-CD20 antibodies and methods of use |
WO2008140603A2 (en) | 2006-12-08 | 2008-11-20 | Macrogenics, Inc. | METHODS FOR THE TREATMENT OF DISEASE USING IMMUNOGLOBULINS HAVING FC REGIONS WITH ALTERED AFFINITIES FOR FCγR ACTIVATING AND FCγR INHIBITING |
US8362217B2 (en) | 2006-12-21 | 2013-01-29 | Emd Millipore Corporation | Purification of proteins |
WO2008079302A2 (en) * | 2006-12-21 | 2008-07-03 | Millipore Corporation | Purification of proteins |
US8569464B2 (en) | 2006-12-21 | 2013-10-29 | Emd Millipore Corporation | Purification of proteins |
DK2426143T3 (en) | 2007-01-05 | 2017-09-11 | Univ Zuerich | Process for providing disease-specific binding molecules and targets |
JP2010515456A (en) | 2007-01-09 | 2010-05-13 | バイオジェン・アイデック・エムエイ・インコーポレイテッド | SP35 antibody and use thereof |
DE102007001370A1 (en) * | 2007-01-09 | 2008-07-10 | Curevac Gmbh | RNA-encoded antibodies |
NZ577933A (en) | 2007-01-22 | 2011-12-22 | Genentech Inc | Polyelectrolyte precipitation and purification of antibodies |
US8450348B2 (en) * | 2007-02-21 | 2013-05-28 | Forma Tm, Llc | Derivatives of squaric acid with anti-proliferative activity |
RU2009137582A (en) | 2007-03-12 | 2011-04-20 | Эсбатек Аг (Ch) | ENGINEERING AND OPTIMIZATION OF SINGLE-CHAIN ANTIBODIES ON THE BASIS OF SEQUENCE |
US7960139B2 (en) | 2007-03-23 | 2011-06-14 | Academia Sinica | Alkynyl sugar analogs for the labeling and visualization of glycoconjugates in cells |
WO2008122039A2 (en) * | 2007-04-02 | 2008-10-09 | The Government Of The United States Of America, As Represented By The Secretary, Department Of Health And Human Services | Selenocysteine mediated hybrid antibody molecules |
FR2915398B1 (en) * | 2007-04-25 | 2012-12-28 | Lab Francais Du Fractionnement | "SET OF MEANS FOR THE TREATMENT OF MALIGNANT PATHOLOGY, AUTOIMMUNE DISEASE OR INFECTIOUS DISEASE" |
EP1995309A1 (en) * | 2007-05-21 | 2008-11-26 | Vivalis | Recombinant protein production in avian EBx® cells |
EP2019101A1 (en) * | 2007-07-26 | 2009-01-28 | GPC Biotech AG | Pyrazol[3,4-d]pyrimidin-4-one useful as Kinase Inhibitor |
CN111253484A (en) | 2007-06-25 | 2020-06-09 | 艾斯巴技术-诺华有限责任公司 | Methods of modifying antibodies and modified antibodies with improved functional properties |
AU2008267733B2 (en) * | 2007-06-25 | 2013-11-14 | Esbatech, An Alcon Biomedical Research Unit Llc | Sequence based engineering and optimization of single chain antibodies |
US20090324596A1 (en) * | 2008-06-30 | 2009-12-31 | The Trustees Of Princeton University | Methods of identifying and treating poor-prognosis cancers |
US10745701B2 (en) | 2007-06-28 | 2020-08-18 | The Trustees Of Princeton University | Methods of identifying and treating poor-prognosis cancers |
AU2008282152B2 (en) | 2007-07-31 | 2013-12-19 | Regeneron Pharmaceuticals, Inc. | Human antibodies to human CD20 and method of using thereof |
RU2595383C2 (en) * | 2007-09-05 | 2016-08-27 | Ф.Хоффманн-Ля Рош Аг | Combined therapy with anti-cd20 antibodies type i and type ii |
WO2009045370A2 (en) | 2007-09-28 | 2009-04-09 | Intrexon Corporation | Therapeutic gene-switch constructs and bioreactors for the expression of biotherapeutic molecules, and uses thereof |
US20090098118A1 (en) * | 2007-10-15 | 2009-04-16 | Thomas Friess | Combination therapy of a type ii anti-cd20 antibody with an anti-bcl-2 active agent |
AU2008316276A1 (en) * | 2007-10-22 | 2009-04-30 | Oncolytics Biotech Inc. | Treatment regime for proliferative disorders |
US20090110688A1 (en) * | 2007-10-24 | 2009-04-30 | Georg Fertig | Combination therapy of type ii anti-cd20 antibody with a proteasome inhibitor |
DK2565206T3 (en) | 2007-10-30 | 2016-06-06 | Genentech Inc | Antibody Purification by cation exchange chromatography |
WO2009117030A2 (en) * | 2007-12-19 | 2009-09-24 | Macrogenics, Inc. | Improved compositions for the prevention and treatment of smallpox |
US20090169550A1 (en) * | 2007-12-21 | 2009-07-02 | Genentech, Inc. | Therapy of rituximab-refractory rheumatoid arthritis patients |
BRPI0821604B1 (en) | 2007-12-26 | 2021-09-21 | Xencor, Inc | ISOLATED POLYPEPTIDE COMPRISING A CF VARIANT OF HUMAN IGG CF POLYPEPTIDE, METHOD FOR PRODUCING THE SAME AND ANTIBODY USE |
EP2085095B1 (en) | 2008-01-17 | 2012-03-07 | Philogen S.p.A. | Combination of an anti-EDb fibronectin antibody-IL-2 fusion protein, and a molecule binding to B cells, B cell progenitors and/or their cancerous counterpart |
JP2011509675A (en) | 2008-01-18 | 2011-03-31 | メディミューン,エルエルシー | Cysteine engineered antibodies for site-specific conjugation |
WO2009097095A2 (en) * | 2008-01-28 | 2009-08-06 | The Regents Of The University Of California | Methods for treating hematopoietic malignancies |
PT2268310T (en) * | 2008-03-25 | 2016-08-23 | Roche Glycart Ag | Use of a type ii anti-cd20 antibody with increased antibody dependent cellular cytotoxicity (adcc) in combination with cyclophosphamide, vincristine and doxorubicine for treating non-hodgkin' s lymphomas |
ES2654937T3 (en) | 2008-04-02 | 2018-02-15 | Macrogenics, Inc. | Specific antibodies for the BCR complex and procedures for their use |
PT2247304T (en) * | 2008-04-02 | 2016-08-29 | Macrogenics Inc | Her2/neu-specific antibodies and methods of using same |
SI2132228T1 (en) * | 2008-04-11 | 2011-10-28 | Emergent Product Dev Seatle | Cd37 immunotherapeutic and combination with bifunctional chemotherapeutic thereof |
EP2112152A1 (en) | 2008-04-22 | 2009-10-28 | GPC Biotech AG | Dihydropteridinones as Plk Inhibitors |
EP2112150B1 (en) | 2008-04-22 | 2013-10-16 | Forma Therapeutics, Inc. | Improved raf inhibitors |
WO2009134738A1 (en) * | 2008-04-29 | 2009-11-05 | Genentech, Inc. | Responses to immunizations in rheumatoid arthritis patients treated with a cd20 antibody |
KR20110014607A (en) | 2008-04-29 | 2011-02-11 | 아보트 러보러터리즈 | Dual variable domain immunoglobulins and uses thereof |
US20100260668A1 (en) * | 2008-04-29 | 2010-10-14 | Abbott Laboratories | Dual Variable Domain Immunoglobulins and Uses Thereof |
SG191639A1 (en) * | 2008-06-03 | 2013-07-31 | Abbott Lab | Dual variable domain immunoglobulins and uses thereof |
RU2010153578A (en) * | 2008-06-03 | 2012-07-20 | Эбботт Лэборетриз (Us) | IMMUNOGLOBULINS WITH DOUBLE VARIABLE DOMAINS AND THEIR APPLICATION |
ES2675730T3 (en) * | 2008-06-04 | 2018-07-12 | Macrogenics, Inc. | Antibodies with altered FcRn binding and methods of use thereof |
US8999702B2 (en) * | 2008-06-11 | 2015-04-07 | Emd Millipore Corporation | Stirred tank bioreactor |
AU2009264566B2 (en) | 2008-06-25 | 2014-05-08 | Novartis Ag | Solubility optimization of immunobinders |
WO2010003057A2 (en) | 2008-07-03 | 2010-01-07 | Mayo Foundation For Medical Education And Research | Treating cancer |
KR101054362B1 (en) | 2008-07-03 | 2011-08-05 | 재단법인 목암생명공학연구소 | How to reduce the fucose content of recombinant protein |
SG192489A1 (en) * | 2008-07-08 | 2013-08-30 | Abbott Lab | Prostaglandin e2 dual variable domain immunoglobulins and uses thereof |
WO2010005570A2 (en) | 2008-07-09 | 2010-01-14 | Biogen Idec Ma Inc. | Compositions comprising antibodies to lingo or fragments thereof |
KR101030978B1 (en) * | 2008-07-10 | 2011-04-28 | (주) 에이프로젠 | Recombinant Expression Vectors for Animal Cells |
TW201016233A (en) * | 2008-07-15 | 2010-05-01 | Genentech Inc | Methods of treating autoimmune diseases using CD4 antibodies |
EP2318832B1 (en) | 2008-07-15 | 2013-10-09 | Academia Sinica | Glycan arrays on ptfe-like aluminum coated glass slides and related methods |
KR20110033233A (en) * | 2008-07-21 | 2011-03-30 | 이뮤노메딕스, 인코오포레이티드 | Structural variants of antibodies for improved therapeutic characteristics |
WO2010011281A2 (en) * | 2008-07-22 | 2010-01-28 | The Research Foundation Of State University Of New York | Methods and compositions for the diagnosis and treatment of cancer |
PL3604324T3 (en) | 2008-08-14 | 2024-07-01 | Genentech, Inc. | Methods for removing a contaminant using indigenous protein displacement ion exchange membrane chromatography |
CA2734275A1 (en) | 2008-09-10 | 2010-03-18 | Genentech, Inc. | Compositions and methods for the prevention of oxidative degradation of proteins |
WO2010049777A1 (en) * | 2008-10-28 | 2010-05-06 | Avesthagen Limited | An expression vector and processes thereof |
AU2009322236B2 (en) * | 2008-12-04 | 2013-11-07 | Abbvie Inc. | Dual variable domain immunoglobulins and uses thereof |
GB2466025A (en) | 2008-12-08 | 2010-06-09 | Univ Francois Rabelais De Tour | C3/ITGAM polymorphisms and cancer prognosis |
US8775090B2 (en) | 2008-12-12 | 2014-07-08 | Medimmune, Llc | Crystals and structure of a human IgG Fc variant with enhanced FcRn binding |
SG171446A1 (en) | 2008-12-16 | 2011-07-28 | Millipore Corp | Stirred tank reactor and method |
EP2358734A1 (en) * | 2008-12-16 | 2011-08-24 | Millipore Corporation | Purification of proteins |
ES2544569T3 (en) | 2008-12-19 | 2015-09-01 | Biogen International Neuroscience Gmbh | Human anti-alpha-synuclein autoantibodies |
KR101741168B1 (en) | 2008-12-22 | 2017-05-29 | 밀레니엄 파머슈티컬스 인코퍼레이티드 | Combination of aurora kinase inhibitors and anti-cd20 antibodies |
AU2009334498A1 (en) | 2008-12-31 | 2011-07-21 | Biogen Idec Ma Inc. | Anti-lymphotoxin antibodies |
BRPI1007222A2 (en) | 2009-01-06 | 2016-02-23 | Inserm Inst Nat De La Santé Et De La Rech Médicale | B cell depletion agent for treating atherosclerosis |
US8435488B2 (en) | 2009-02-27 | 2013-05-07 | Genentech, Inc. | Methods and compositions for protein labelling |
NZ594514A (en) * | 2009-03-05 | 2013-06-28 | Abbott Lab | Interleukin-17 BINDING PROTEINS |
NZ612647A (en) | 2009-03-10 | 2015-03-27 | Biogen Idec Inc | Anti-bcma antibodies |
CN102369011A (en) | 2009-03-12 | 2012-03-07 | 健泰科生物技术公司 | Combinations of phosphoinositide 3-kinase inhibitor compounds and chemotherapeutic agents for the treatment of hematopoietic malignancies |
EP2233500A1 (en) | 2009-03-20 | 2010-09-29 | LFB Biotechnologies | Optimized Fc variants |
JP2012521216A (en) | 2009-03-24 | 2012-09-13 | テバ バイオファーマスーティカルズ ユーエスエー,インコーポレーテッド | Humanized antibodies against LIGHT and uses thereof |
AR075982A1 (en) | 2009-03-31 | 2011-05-11 | Roche Glycart Ag | COMBINATION THERAPY OF A AFUCOSILATED ANTIBODY AND ONE OR MORE OF THE SELECTED CYTOKINS OF GM-CSF HUMAN, M-CSF HUMAN AND / OR IL-3 HUMAN AND COMPOSITION |
WO2010138184A2 (en) | 2009-05-27 | 2010-12-02 | Synageva Biopharma Corp. | Avian derived antibodies |
EP2443234B1 (en) | 2009-06-15 | 2018-08-15 | Icon Genetics GmbH | Nicotiana benthamiana plants deficient in xylosyltransferase activity |
CA2766405A1 (en) | 2009-06-22 | 2011-01-13 | Medimmune, Llc | Engineered fc regions for site-specific conjugation |
WO2011000543A1 (en) * | 2009-06-30 | 2011-01-06 | Philochem Ag | Murine antibody display library |
TW201109438A (en) * | 2009-07-29 | 2011-03-16 | Abbott Lab | Dual variable domain immunoglobulins and uses thereof |
TWI409079B (en) | 2009-08-14 | 2013-09-21 | Roche Glycart Ag | Combination therapy of an afucosylated cd20 antibody with bendamustine |
WO2011018225A1 (en) | 2009-08-14 | 2011-02-17 | Roche Glycart Ag | Combination therapy of an afucosylated cd20 antibody with fludarabine and/or mitoxantrone |
RU2012112550A (en) | 2009-09-01 | 2013-10-10 | Эбботт Лэборетриз | IMMUNOGLOBULINS WITH TWO VARIABLE DOMAINS AND THEIR APPLICATION |
WO2011028753A1 (en) | 2009-09-01 | 2011-03-10 | Genentech, Inc. | Enhanced protein purification through a modified protein a elution |
US9493578B2 (en) | 2009-09-02 | 2016-11-15 | Xencor, Inc. | Compositions and methods for simultaneous bivalent and monovalent co-engagement of antigens |
EP3211094A3 (en) | 2009-09-03 | 2017-11-01 | F. Hoffmann-La Roche AG | Methods for treating, diagnosing, and monitoring rheumatoid arthritis |
MX2012004029A (en) | 2009-10-07 | 2012-05-08 | Macrogenics Inc | Fc region-containing polypeptides that exhibit improved effector function due to alterations of the extent of fucosylation, and methods for their use. |
WO2011047262A2 (en) | 2009-10-15 | 2011-04-21 | Abbott Laboratories | Dual variable domain immunoglobulins and uses thereof |
BR112012005668A2 (en) * | 2009-10-19 | 2020-10-13 | F. Hoffmann La Roche Ag | '' cell line, antibody, use of an antibody, kit, method of detecting a therapeutic antibody, method of immunological determination of a therapeutic antibody, antibody composition, use of an antibody composition '' |
EP2325185A1 (en) | 2009-10-28 | 2011-05-25 | GPC Biotech AG | Plk inhibitor |
UY32979A (en) * | 2009-10-28 | 2011-02-28 | Abbott Lab | IMMUNOGLOBULINS WITH DUAL VARIABLE DOMAIN AND USES OF THE SAME |
US10087236B2 (en) | 2009-12-02 | 2018-10-02 | Academia Sinica | Methods for modifying human antibodies by glycan engineering |
US11377485B2 (en) | 2009-12-02 | 2022-07-05 | Academia Sinica | Methods for modifying human antibodies by glycan engineering |
US20110189178A1 (en) * | 2010-02-04 | 2011-08-04 | Xencor, Inc. | Immunoprotection of Therapeutic Moieties Using Enhanced Fc Regions |
WO2011097527A2 (en) | 2010-02-04 | 2011-08-11 | Xencor, Inc. | Immunoprotection of therapeutic moieties using enhanced fc regions |
WO2011095596A1 (en) | 2010-02-04 | 2011-08-11 | Vivalis | Fed-batch process using concentrated cell culture medium for the efficient production of biologics in eb66 cells |
WO2011100398A1 (en) * | 2010-02-10 | 2011-08-18 | Immunogen, Inc. | Cd20 antibodies and uses thereof |
JP5820800B2 (en) | 2010-03-02 | 2015-11-24 | 協和発酵キリン株式会社 | Modified antibody composition |
US8802091B2 (en) | 2010-03-04 | 2014-08-12 | Macrogenics, Inc. | Antibodies reactive with B7-H3 and uses thereof |
NZ602161A (en) | 2010-03-04 | 2014-12-24 | Macrogenics Inc | Antibodies reactive with b7-h3, immunologically active fragments thereof and uses thereof |
CA2792125C (en) | 2010-03-22 | 2019-02-12 | Genentech, Inc. | Compositions and methods useful for stabilizing protein-containing formulations |
JP5767207B2 (en) | 2010-03-26 | 2015-08-19 | 協和発酵キリン株式会社 | Novel modified site-introduced antibodies and antibody fragments |
HUE032519T2 (en) | 2010-03-26 | 2017-09-28 | Memorial Sloan Kettering Cancer Center | Antibodies to muc16 and methods of use thereof |
CA2794708C (en) | 2010-03-29 | 2021-11-16 | Zymeworks Inc. | Antibodies with enhanced or suppressed effector function |
EP2552967A4 (en) | 2010-04-02 | 2014-10-08 | Amunix Operating Inc | Binding fusion proteins, binding fusion protein-drug conjugates, xten-drug conjugates and methods of making and using same |
WO2011130332A1 (en) | 2010-04-12 | 2011-10-20 | Academia Sinica | Glycan arrays for high throughput screening of viruses |
WO2011134899A1 (en) | 2010-04-27 | 2011-11-03 | Roche Glycart Ag | Combination therapy of an afucosylated cd20 antibody with a mtor inhibitor |
RU2012151500A (en) | 2010-05-03 | 2014-06-10 | Дженентек, Инк. | COMPOSITIONS AND METHODS SUITABLE FOR REDUCING VISCOSITY OF PROTEIN-CONTAINING COMPOSITIONS |
EP2568976B1 (en) | 2010-05-10 | 2015-09-30 | Academia Sinica | Zanamivir phosphonate congeners with anti-influenza activity and determining oseltamivir susceptibility of influenza viruses |
ES2635594T3 (en) | 2010-05-14 | 2017-10-04 | Abbvie Inc. | IL-1 binding proteins |
ES2754210T3 (en) | 2010-05-17 | 2020-04-16 | Emd Millipore Corp | Stimulus-sensitive polymers for biomolecule purification |
EP2575847B2 (en) | 2010-05-25 | 2022-04-27 | F. Hoffmann-La Roche AG | Methods of purifying polypeptides |
DK2576580T3 (en) | 2010-05-28 | 2016-10-17 | Hoffmann La Roche | LOWERING THE lactate AND INCREASE polypeptide production by downregulation of the expression of lactate dehydrogenase, and PYRUVATDEHYDROGENASEKINASE |
EP4008313A1 (en) | 2010-06-24 | 2022-06-08 | F. Hoffmann-La Roche AG | Compositions and methods for stablizing protein-containing formulations |
US20120009196A1 (en) | 2010-07-08 | 2012-01-12 | Abbott Laboratories | Monoclonal antibodies against hepatitis c virus core protein |
TW201217527A (en) | 2010-07-09 | 2012-05-01 | Biogen Idec Hemophilia Inc | Processable single chain molecules and polypeptides made using same |
UY33492A (en) | 2010-07-09 | 2012-01-31 | Abbott Lab | IMMUNOGLOBULINS WITH DUAL VARIABLE DOMAIN AND USES OF THE SAME |
EP2409712A1 (en) | 2010-07-19 | 2012-01-25 | International-Drug-Development-Biotech | Anti-CD19 antibody having ADCC and CDC functions and improved glycosylation profile |
EP2409993A1 (en) | 2010-07-19 | 2012-01-25 | International-Drug-Development-Biotech | Anti-CD19 antibody having ADCC function with improved glycosylation profile |
CN103052649B (en) | 2010-07-29 | 2015-12-16 | Xencor公司 | There is the antibody of the iso-electric point of amendment |
CN103154025B (en) | 2010-08-02 | 2015-07-01 | 宏观基因有限公司 | Covalent diabodies and uses thereof |
JPWO2012017925A1 (en) | 2010-08-02 | 2013-10-03 | 協和発酵キリン株式会社 | Method for producing substance |
PE20131412A1 (en) | 2010-08-03 | 2014-01-19 | Abbvie Inc | IMMUNOGLOBULINS WITH DUAL VARIABLE DOMAIN AND USES OF THE SAME |
JP2013541501A (en) | 2010-08-03 | 2013-11-14 | エフ・ホフマン−ラ・ロシュ・アクチェンゲゼルシャフト | Biomarkers for chronic lymphocytic leukemia (CLL) |
CA2807552A1 (en) | 2010-08-06 | 2012-02-09 | Moderna Therapeutics, Inc. | Engineered nucleic acids and methods of use thereof |
EP2603525A1 (en) | 2010-08-13 | 2013-06-19 | F.Hoffmann-La Roche Ag | Antibodies to il-1beta and il-18, for treatment of disease |
MX360347B (en) * | 2010-08-17 | 2018-10-30 | F Hoffmann La Roche Ag Star | Anti-human igg1 antibody. |
TW201208703A (en) | 2010-08-17 | 2012-03-01 | Roche Glycart Ag | Combination therapy of an afucosylated CD20 antibody with an anti-VEGF antibody |
CA2809433A1 (en) | 2010-08-26 | 2012-03-01 | Abbvie Inc. | Dual variable domain immunoglobulins and uses thereof |
WO2012030512A1 (en) | 2010-09-03 | 2012-03-08 | Percivia Llc. | Flow-through protein purification process |
CN104531671A (en) | 2010-10-01 | 2015-04-22 | 现代治疗公司 | Engineered nucleic acids and methods of use thereof |
DK2627672T3 (en) | 2010-10-11 | 2018-08-27 | Biogen Idec Int Neuroscience Gmbh | HUMAN ANTI-TAU ANTIBODIES |
TWI603738B (en) | 2010-11-08 | 2017-11-01 | 建南德克公司 | Subcutaneously administered anti-il-6 receptor antibody |
SG191124A1 (en) | 2010-12-15 | 2013-07-31 | Kek High Energy Accelerator | Protein production method |
RU2013131444A (en) | 2010-12-16 | 2015-01-27 | Рош Гликарт Аг | COMBINED THERAPY BY AFUCOSYLED ANTIBODY TO CD20 AND MDM2 INHIBITOR |
US9283271B2 (en) | 2010-12-17 | 2016-03-15 | Neurimmune Holding Ag | Human anti-SOD1 antibodies |
SG10201604699VA (en) | 2010-12-21 | 2016-07-28 | Abbvie Inc | Il-1 -alpha and -beta bispecific dual variable domain immunoglobulins and their use |
JP5882913B2 (en) | 2010-12-27 | 2016-03-09 | 協和発酵キリン株式会社 | Method for preparing aqueous solution containing medium and chelating agent |
WO2012095514A1 (en) | 2011-01-14 | 2012-07-19 | Vivalis | Recombinant protein production system |
WO2012106368A2 (en) | 2011-01-31 | 2012-08-09 | The Regents Of The University Of California | Methods for inhibiting prostate cancer |
RU2013140975A (en) | 2011-02-28 | 2015-04-10 | Дженентек, Инк. | BIOLOGICAL MARKERS AND METHODS FOR PREDICTING SUSCEPTIBILITY TO B-CELL ANTAGONISTS |
TWI588156B (en) | 2011-03-28 | 2017-06-21 | 賽諾菲公司 | Dual variable region antibody-like binding proteins having cross-over binding region orientation |
CA2828289C (en) | 2011-03-29 | 2020-07-21 | Roche Glycart Ag | Antibody fc variants |
EP2691101A2 (en) | 2011-03-31 | 2014-02-05 | Moderna Therapeutics, Inc. | Delivery and formulation of engineered nucleic acids |
EP2506015A1 (en) | 2011-04-01 | 2012-10-03 | Universität Regensburg | A prognostic and therapeutic signature for malignant melanoma |
TR201905909T4 (en) | 2011-04-19 | 2019-05-21 | Pfizer | Combinations of anti-4-1bb antibodies and adcc inducing antibodies for cancer therapy. |
WO2012154861A2 (en) | 2011-05-09 | 2012-11-15 | Mayo Foundation For Medical Education And Research | Cancer treatments |
RU2638806C2 (en) | 2011-05-12 | 2017-12-15 | Дженентек, Инк. | Lc-ms/ms method for multiple reactions monitoring to identify therapeutic antibodies in animal species using framework signature peptides |
JP6400470B2 (en) | 2011-05-16 | 2018-10-03 | ジェネロン(シャンハイ)コーポレイション リミテッド | Multispecific Fab fusion proteins and methods of use |
JP6145088B2 (en) | 2011-05-21 | 2017-06-07 | マクロジェニクス,インコーポレーテッド | Deimmunized serum binding domain and its use to extend serum half-life |
JP6141831B2 (en) | 2011-05-21 | 2017-06-07 | マクロジェニクス,インコーポレーテッド | CD3 binding molecules capable of binding to human and non-human CD3 |
RU2011122942A (en) | 2011-06-08 | 2012-12-20 | Общество С Ограниченной Ответственностью "Асинэкс Медхим" | NEW KINAZ INHIBITORS |
US9580493B2 (en) | 2011-06-23 | 2017-02-28 | Biogen International Neuroscience Gmbh | Anti-α synuclein binding molecules |
EP2537933A1 (en) | 2011-06-24 | 2012-12-26 | Institut National de la Santé et de la Recherche Médicale (INSERM) | An IL-15 and IL-15Ralpha sushi domain based immunocytokines |
US20140234298A1 (en) | 2011-07-06 | 2014-08-21 | Morphosys Ag | Therapeutic combinations of anti-cd20 and anti-gm-csf antibodies and uses thereof |
US20130012689A1 (en) | 2011-07-08 | 2013-01-10 | Emd Millipore Corporation | Depth Filters For Disposable Biotechnological Processes |
US9464288B2 (en) | 2011-07-11 | 2016-10-11 | Yale University | Compositions and methods for making selenocysteine containing polypeptides |
WO2019071023A1 (en) | 2017-10-04 | 2019-04-11 | Yale University | Compositions and methods for making selenocysteine containing polypeptides |
WO2013012733A1 (en) | 2011-07-15 | 2013-01-24 | Biogen Idec Ma Inc. | Heterodimeric fc regions, binding molecules comprising same, and methods relating thereto |
EP2551348B1 (en) | 2011-07-29 | 2014-09-24 | Icon Genetics GmbH | Production of galactosylated N-glycans in plants |
EP2550975A1 (en) | 2011-07-29 | 2013-01-30 | Sanofi | Combination therapy for the treatment of CD19+ B-cell malignancies symptoms comprising an anti-CD19 maytansinoid immunoconjugate and rituximab |
WO2013022855A1 (en) | 2011-08-05 | 2013-02-14 | Xencor, Inc. | Antibodies with modified isoelectric points and immunofiltering |
US9464124B2 (en) | 2011-09-12 | 2016-10-11 | Moderna Therapeutics, Inc. | Engineered nucleic acids and methods of use thereof |
US20140234307A1 (en) | 2011-09-27 | 2014-08-21 | The United States Of America,As Represented By The Secretary,Department Of Health And Human Services | Method of treating multiple sclerosis by intrathecal depletion of b cells and biomarkers to select patients with progressive multiple sclerosis |
EP3492109B1 (en) | 2011-10-03 | 2020-03-04 | ModernaTX, Inc. | Modified nucleosides, nucleotides, and nucleic acids, and uses thereof |
AU2012320847B2 (en) | 2011-10-04 | 2018-03-08 | Icon Genetics Gmbh | Nicotiana benthamiana plants deficient in fucosyltransferase activity |
US10851178B2 (en) | 2011-10-10 | 2020-12-01 | Xencor, Inc. | Heterodimeric human IgG1 polypeptides with isoelectric point modifications |
CA2851534C (en) | 2011-10-10 | 2023-02-14 | Xencor, Inc. | A method for purifying antibodies |
WO2013063095A1 (en) | 2011-10-24 | 2013-05-02 | Abbvie Inc. | Immunobinders directed against sclerostin |
BR112014010008A2 (en) | 2011-10-26 | 2018-09-04 | Novartis Ag | monoclonal antibodies, their uses and nucleic acids |
US20130302274A1 (en) | 2011-11-25 | 2013-11-14 | Roche Glycart Ag | Combination therapy |
WO2013090648A1 (en) | 2011-12-16 | 2013-06-20 | modeRNA Therapeutics | Modified nucleoside, nucleotide, and nucleic acid compositions |
RU2648999C2 (en) | 2011-12-22 | 2018-03-29 | Дженентек, Инк. | Methods of the proteins downstream purification efficiency increasing with the use of membrane ion exchange chromatography |
MX2014008101A (en) | 2011-12-30 | 2014-09-25 | Abbvie Inc | Dual variable domain immunoglobulins against il-13 and/or il-17. |
AU2013215332A1 (en) | 2012-01-31 | 2014-09-04 | Genentech, Inc. | Anti-Ig-E M1' antibodies and methods using same |
RU2659423C2 (en) | 2012-02-16 | 2018-07-02 | ЭйТИР ФАРМА, ИНК. | Hystidil-trna-synthetase for treatment of autoimmune and inflammatory diseases |
SI2831261T1 (en) | 2012-03-27 | 2018-01-31 | F.Hoffmann-La Roche | Method for producing recombinant proteins with low levels of DHNA (1,4-dihydroxy-2-naphthoate) |
US9283287B2 (en) | 2012-04-02 | 2016-03-15 | Moderna Therapeutics, Inc. | Modified polynucleotides for the production of nuclear proteins |
US9878056B2 (en) | 2012-04-02 | 2018-01-30 | Modernatx, Inc. | Modified polynucleotides for the production of cosmetic proteins and peptides |
US9572897B2 (en) | 2012-04-02 | 2017-02-21 | Modernatx, Inc. | Modified polynucleotides for the production of cytoplasmic and cytoskeletal proteins |
US8999380B2 (en) | 2012-04-02 | 2015-04-07 | Moderna Therapeutics, Inc. | Modified polynucleotides for the production of biologics and proteins associated with human disease |
US10130714B2 (en) | 2012-04-14 | 2018-11-20 | Academia Sinica | Enhanced anti-influenza agents conjugated with anti-inflammatory activity |
WO2013173364A2 (en) | 2012-05-14 | 2013-11-21 | Biogen Idec Ma Inc. | Lingo-2 antagonists for treatment of conditions involving motor neurons |
EP3505534A1 (en) | 2012-06-08 | 2019-07-03 | Sutro Biopharma, Inc. | Antibodies comprising sitespecific nonnatural amino acid residues, methods of their preparation and methods of their use |
CN104427995A (en) | 2012-06-08 | 2015-03-18 | 比奥根艾迪克Ma公司 | Chimeric clotting factors |
US9670276B2 (en) | 2012-07-12 | 2017-06-06 | Abbvie Inc. | IL-1 binding proteins |
RS57704B1 (en) | 2012-07-13 | 2018-12-31 | Roche Glycart Ag | Bispecific anti-vegf/anti-ang-2 antibodies and their use in the treatment of ocular vascular diseases |
JP6302909B2 (en) | 2012-08-18 | 2018-03-28 | アカデミア シニカAcademia Sinica | Cell-permeable probes for sialidase identification and imaging |
US9547009B2 (en) | 2012-08-21 | 2017-01-17 | Academia Sinica | Benzocyclooctyne compounds and uses thereof |
SI2890402T1 (en) | 2012-08-31 | 2019-07-31 | Sutro Biopharma, Inc. | Modified amino acids comprising an azido group |
JOP20200236A1 (en) | 2012-09-21 | 2017-06-16 | Regeneron Pharma | Anti-cd3 antibodies, bispecific antigen-binding molecules that bind cd3 and cd20, and uses thereof |
WO2014052713A2 (en) | 2012-09-27 | 2014-04-03 | Massachusetts Institute Of Technology | Her2-and vegf-a-binding proteins with enhanced stability |
AU2013327638B2 (en) | 2012-10-01 | 2018-06-14 | Mayo Foundation For Medical Education And Research | Cancer treatments |
WO2014058875A2 (en) | 2012-10-09 | 2014-04-17 | Biogen Idec Ma Inc. | Combination therapies and uses for treatment of demyelinating disorders |
PL2766048T3 (en) | 2012-10-12 | 2015-05-29 | Medimmune Ltd | Pyrrolobenzodiazepines and conjugates thereof |
CA2889488A1 (en) | 2012-11-01 | 2014-05-08 | Abbvie Inc. | Stable dual variable domain immunoglobulin protein formulations |
WO2014071074A2 (en) | 2012-11-01 | 2014-05-08 | Abbvie Inc. | Anti-vegf/dll4 dual variable domain immunoglobulins and uses thereof |
JP6437441B2 (en) | 2012-11-02 | 2018-12-12 | ティージー セラピューティクス インコーポレイテッド | Combination of anti-CD20 antibody and PI3 kinase selective inhibitor |
US9597380B2 (en) | 2012-11-26 | 2017-03-21 | Modernatx, Inc. | Terminally modified RNA |
WO2014100095A1 (en) | 2012-12-19 | 2014-06-26 | Genentech, Inc. | Methods and compositions for radiohalogen protein labeling |
EP2935326B1 (en) | 2012-12-21 | 2020-06-10 | Biogen MA Inc. | Human anti-tau antibodies |
WO2014102399A1 (en) | 2012-12-31 | 2014-07-03 | Neurimmune Holding Ag | Recombinant human antibodies for therapy and prevention of polyomavirus-related diseases |
US11053316B2 (en) | 2013-01-14 | 2021-07-06 | Xencor, Inc. | Optimized antibody variable regions |
US10131710B2 (en) | 2013-01-14 | 2018-11-20 | Xencor, Inc. | Optimized antibody variable regions |
US9605084B2 (en) | 2013-03-15 | 2017-03-28 | Xencor, Inc. | Heterodimeric proteins |
SI2943511T1 (en) | 2013-01-14 | 2020-01-31 | Xencor, Inc. | Novel heterodimeric proteins |
US10487155B2 (en) | 2013-01-14 | 2019-11-26 | Xencor, Inc. | Heterodimeric proteins |
US9701759B2 (en) | 2013-01-14 | 2017-07-11 | Xencor, Inc. | Heterodimeric proteins |
US10968276B2 (en) | 2013-03-12 | 2021-04-06 | Xencor, Inc. | Optimized anti-CD3 variable regions |
WO2014113510A1 (en) | 2013-01-15 | 2014-07-24 | Xencor, Inc. | Rapid clearance of antigen complexes using novel antibodies |
SG11201505663YA (en) | 2013-01-24 | 2015-08-28 | Scripps Korea Antibody Inst | Protein combination-based fv library, and preparation method therefor |
CA2895284A1 (en) | 2013-02-07 | 2014-08-14 | Immunomedics, Inc. | Pro-drug form (p2pdox) of the highly potent 2-pyrrolinodoxorubicin conjugated to antibodies for targeted therapy of cancer |
US10370431B2 (en) | 2013-02-15 | 2019-08-06 | Bioverativ Therapeutics Inc. | Optimized factor VIII gene |
US9487587B2 (en) | 2013-03-05 | 2016-11-08 | Macrogenics, Inc. | Bispecific molecules that are immunoreactive with immune effector cells of a companion animal that express an activating receptor and cells that express B7-H3 and uses thereof |
CA2906057A1 (en) | 2013-03-13 | 2014-10-02 | Genentech, Inc. | Antibody formulations |
BR112015023333A8 (en) | 2013-03-13 | 2018-04-17 | Medimmune Ltd | pyrrolbenzodiazepines and conjugates thereof |
ES2882183T3 (en) | 2013-03-14 | 2021-12-01 | Univ Duke | Bispecific molecules that are immunoreactive with immune effector cells that express an activating receptor |
US10858417B2 (en) | 2013-03-15 | 2020-12-08 | Xencor, Inc. | Heterodimeric proteins |
EP2970459A2 (en) | 2013-03-15 | 2016-01-20 | AbbVie Inc. | Dual specific binding proteins directed against il-1beta and il-17 |
US10519242B2 (en) | 2013-03-15 | 2019-12-31 | Xencor, Inc. | Targeting regulatory T cells with heterodimeric proteins |
US8980864B2 (en) | 2013-03-15 | 2015-03-17 | Moderna Therapeutics, Inc. | Compositions and methods of altering cholesterol levels |
SG10201707600XA (en) | 2013-03-15 | 2017-11-29 | Biogen Ma Inc | Factor ix polypeptide formulations |
JP6449229B2 (en) | 2013-03-15 | 2019-01-09 | アッヴィ・バイオセラピューティクス・インコーポレイテッド | FC variant |
US10106624B2 (en) | 2013-03-15 | 2018-10-23 | Xencor, Inc. | Heterodimeric proteins |
DK2970486T3 (en) | 2013-03-15 | 2018-08-06 | Xencor Inc | MODULATION OF T-CELLS WITH BISPECIFIC ANTIBODIES AND FC-FUSIONS |
JP6433085B2 (en) | 2013-04-09 | 2018-12-05 | ボストン バイオメディカル, インコーポレイテッド | 2-acetylnaphtho [2,3-b] furan-4,9-dione for use in the treatment of cancer |
CN109395064A (en) | 2013-04-19 | 2019-03-01 | 赛腾制药 | The derivative treatment of the cell factor of reduced vascular leak syndrome |
EP2805730A1 (en) | 2013-05-21 | 2014-11-26 | Bergen Teknologioverforing AS | Nitric oxide donor for the treatment of chronic fatigue syndrome |
KR102332303B1 (en) | 2013-05-31 | 2021-11-26 | 자임워크스 인코포레이티드 | Heteromultimers with reduced or silenced effector function |
EP3013365B1 (en) | 2013-06-26 | 2019-06-05 | Academia Sinica | Rm2 antigens and use thereof |
US9981030B2 (en) | 2013-06-27 | 2018-05-29 | Academia Sinica | Glycan conjugates and use thereof |
EP3019522B1 (en) | 2013-07-10 | 2017-12-13 | Sutro Biopharma, Inc. | Antibodies comprising multiple site-specific non-natural amino acid residues, methods of their preparation and methods of their use |
US11384149B2 (en) | 2013-08-09 | 2022-07-12 | Macrogenics, Inc. | Bi-specific monovalent Fc diabodies that are capable of binding CD32B and CD79b and uses thereof |
UA116479C2 (en) | 2013-08-09 | 2018-03-26 | Макродженікс, Інк. | Bi-specific monovalent fc diabodies that are capable of binding cd32b and cd79b and uses thereof |
EP2839842A1 (en) | 2013-08-23 | 2015-02-25 | MacroGenics, Inc. | Bi-specific monovalent diabodies that are capable of binding CD123 and CD3 and uses thereof |
EP2840091A1 (en) | 2013-08-23 | 2015-02-25 | MacroGenics, Inc. | Bi-specific diabodies that are capable of binding gpA33 and CD3 and uses thereof |
WO2015035044A2 (en) | 2013-09-04 | 2015-03-12 | Abbvie Biotherapeutics Inc. | Fc VARIANTS WITH IMPROVED ANTIBODY-DEPENDENT CELL-MEDIATED CYTOTOXICITY |
AU2014317889B2 (en) | 2013-09-06 | 2020-03-05 | Academia Sinica | Human iNKT cell activation using glycolipids with altered glycosyl groups |
CA2924069C (en) | 2013-09-11 | 2021-11-02 | Arsia Therapeutics, Inc. | Liquid protein formulations containing ionic liquids |
EP3052106A4 (en) | 2013-09-30 | 2017-07-19 | ModernaTX, Inc. | Polynucleotides encoding immune modulating polypeptides |
BR112016007255A2 (en) | 2013-10-03 | 2017-09-12 | Moderna Therapeutics Inc | polynucleotides encoding low density lipoprotein receptor |
EP3055298B1 (en) | 2013-10-11 | 2020-04-29 | Sutro Biopharma, Inc. | Modified amino acids comprising tetrazine functional groups, methods of preparation, and methods of their use |
WO2015063287A1 (en) | 2013-11-01 | 2015-05-07 | Bergen Teknologioverføring As | Activators or stimulators of soluble guanylate cyclase for use in treating chronic fatigue syndrome |
CN106414494B (en) | 2013-11-12 | 2020-09-18 | Ogd2药物 | Human IgG 1-derived antibodies with pro-apoptotic activity |
WO2015095410A1 (en) | 2013-12-17 | 2015-06-25 | Genentech, Inc. | Methods of treating cancer using pd-1 axis binding antagonists and an anti-cd20 antibody |
WO2015109180A2 (en) | 2014-01-16 | 2015-07-23 | Academia Sinica | Compositions and methods for treatment and detection of cancers |
US10150818B2 (en) | 2014-01-16 | 2018-12-11 | Academia Sinica | Compositions and methods for treatment and detection of cancers |
US9139649B2 (en) | 2014-02-25 | 2015-09-22 | Immunomedics, Inc. | Humanized anti-CD22 antibody |
EP2915569A1 (en) | 2014-03-03 | 2015-09-09 | Cytune Pharma | IL-15/IL-15Ralpha based conjugates purification method |
TWI701042B (en) | 2014-03-19 | 2020-08-11 | 美商再生元醫藥公司 | Methods and antibody compositions for tumor treatment |
WO2015148915A1 (en) | 2014-03-27 | 2015-10-01 | Academia Sinica | Reactive labelling compounds and uses thereof |
SG10202008629XA (en) | 2014-03-28 | 2020-10-29 | Xencor Inc | Bispecific antibodies that bind to cd38 and cd3 |
EP3134113A4 (en) | 2014-04-25 | 2017-11-29 | University of Florida Research Foundation, Inc. | Methods of permitting a subject to receive multiple doses of recombinant adeno-associated virus |
EP3149037A4 (en) | 2014-05-27 | 2018-01-10 | Academia Sinica | Anti-her2 glycoantibodies and uses thereof |
US10118969B2 (en) | 2014-05-27 | 2018-11-06 | Academia Sinica | Compositions and methods relating to universal glycoforms for enhanced antibody efficacy |
JP6894239B2 (en) | 2014-05-27 | 2021-06-30 | アカデミア シニカAcademia Sinica | Compositions and methods for universal glycoforms for enhanced antibody efficacy |
CA2950415A1 (en) | 2014-05-27 | 2015-12-03 | Academia Sinica | Anti-cd20 glycoantibodies and uses thereof |
EP3154582A4 (en) | 2014-05-28 | 2018-01-10 | Academia Sinica | Anti-tnf-alpha glycoantibodies and uses thereof |
MX2016016369A (en) | 2014-06-13 | 2017-10-12 | Mayo Found Medical Education & Res | Treating lymphomas. |
KR20180129990A (en) | 2014-06-16 | 2018-12-05 | 메이오 파운데이션 포 메디칼 에쥬케이션 앤드 리써치 | Treating myelomas |
US11008561B2 (en) | 2014-06-30 | 2021-05-18 | Bioverativ Therapeutics Inc. | Optimized factor IX gene |
WO2016007752A1 (en) | 2014-07-09 | 2016-01-14 | Genentech, Inc. | Ph adjustment to improve thaw recovery of cell banks |
MX2017001285A (en) | 2014-07-29 | 2017-04-25 | Neurimmune Holding Ag | Human-derived anti-huntingtin (htt) antibodies and uses thereof. |
WO2016040369A2 (en) | 2014-09-08 | 2016-03-17 | Academia Sinica | HUMAN iNKT CELL ACTIVATION USING GLYCOLIPIDS |
WO2016037644A1 (en) | 2014-09-10 | 2016-03-17 | Medimmune Limited | Pyrrolobenzodiazepines and conjugates thereof |
EP3191527B1 (en) | 2014-09-10 | 2020-01-15 | F.Hoffmann-La Roche Ag | Galactoengineered immunoglobulin 1 antibodies |
US20160137727A1 (en) | 2014-09-15 | 2016-05-19 | Genentech, Inc. | Antibody formulations |
RS60349B8 (en) | 2014-09-23 | 2022-10-31 | Hoffmann La Roche | Method of using anti-cd79b immunoconjugates |
JP6932639B2 (en) | 2014-09-29 | 2021-09-08 | デューク ユニバーシティ | Bispecific molecule with HIV-1 envelope targeting arm |
BR112017006598A2 (en) | 2014-09-30 | 2018-04-17 | Neurimmune Holding Ag | human derived antidipeptide repeat antibody (dprs) |
CN106999510B (en) | 2014-10-01 | 2021-04-30 | 伊格尔生物制品有限公司 | Polysaccharide and nucleic acid formulations containing viscosity reducing agents |
US9446148B2 (en) | 2014-10-06 | 2016-09-20 | Mayo Foundation For Medical Education And Research | Carrier-antibody compositions and methods of making and using the same |
MA40835A (en) | 2014-10-23 | 2017-08-29 | Biogen Ma Inc | ANTI-GPIIB / IIIA ANTIBODIES AND THEIR USES |
MA40861A (en) | 2014-10-31 | 2017-09-05 | Biogen Ma Inc | ANTI-GLYCOPROTEIN IIB / IIIA ANTIBODIES |
KR102614189B1 (en) | 2014-11-17 | 2023-12-18 | 리제너론 파아마슈티컬스, 인크. | Methods for tumor treatment using cd3xcd20 bispecific antibody |
NZ732144A (en) | 2014-11-26 | 2020-04-24 | Xencor Inc | Heterodimeric antibodies that bind cd3 and tumor antigens |
AU2015353416C1 (en) | 2014-11-26 | 2022-01-27 | Xencor, Inc. | Heterodimeric antibodies that bind CD3 and CD38 |
US10259887B2 (en) | 2014-11-26 | 2019-04-16 | Xencor, Inc. | Heterodimeric antibodies that bind CD3 and tumor antigens |
US10093733B2 (en) | 2014-12-11 | 2018-10-09 | Abbvie Inc. | LRP-8 binding dual variable domain immunoglobulin proteins |
EP3237449A2 (en) | 2014-12-22 | 2017-11-01 | Xencor, Inc. | Trispecific antibodies |
CA2973266A1 (en) | 2015-01-08 | 2016-07-14 | Biogen Ma Inc. | Lingo-1 antagonists and uses for treatment of demyelinating disorders |
US9975965B2 (en) | 2015-01-16 | 2018-05-22 | Academia Sinica | Compositions and methods for treatment and detection of cancers |
US10495645B2 (en) | 2015-01-16 | 2019-12-03 | Academia Sinica | Cancer markers and methods of use thereof |
EP3248005B1 (en) | 2015-01-24 | 2020-12-09 | Academia Sinica | Novel glycan conjugates and methods of use thereof |
WO2016141387A1 (en) | 2015-03-05 | 2016-09-09 | Xencor, Inc. | Modulation of t cells with bispecific antibodies and fc fusions |
US10722523B2 (en) | 2015-03-17 | 2020-07-28 | The Regents Of The University Of California | Chemoimmunotherapy for epithelial cancer |
EP4190817A1 (en) | 2015-03-17 | 2023-06-07 | Memorial Sloan Kettering Cancer Center | Anti-muc16 antibodies and uses thereof |
EP4238994A3 (en) | 2015-05-11 | 2024-02-07 | F. Hoffmann-La Roche AG | Compositions and methods of treating lupus nephritis |
MX2017015493A (en) | 2015-05-30 | 2018-02-09 | Molecular Templates Inc | De-immunized, shiga toxin a subunit scaffolds and cell-targeting molecules comprising the same. |
KR20180015195A (en) | 2015-06-03 | 2018-02-12 | 보스톤 바이오메디칼, 인크. | Composition comprising a cancer stem function inhibitor and an immunotherapeutic agent for use in the treatment of cancer |
TW201710286A (en) | 2015-06-15 | 2017-03-16 | 艾伯維有限公司 | Binding proteins against VEGF, PDGF, and/or their receptors |
EP3108897A1 (en) | 2015-06-24 | 2016-12-28 | F. Hoffmann-La Roche AG | Antibodies against human csf-1r for use in inducing lymphocytosis in lymphomas or leukemias |
KR20180021864A (en) | 2015-06-29 | 2018-03-05 | 제넨테크, 인크. | Type II anti-CD20 antibodies for use in organ transplantation |
JP6909203B2 (en) | 2015-08-03 | 2021-07-28 | バイオベラティブ セラピューティクス インコーポレイテッド | Factor IX fusion proteins and their production and usage |
LT3334747T (en) | 2015-08-13 | 2023-12-27 | Amgen Inc. | Charged depth filtration of antigen-binding proteins |
TW201707725A (en) | 2015-08-18 | 2017-03-01 | 美國馬友醫藥教育研究基金會 | Carrier-antibody compositions and methods of making and using the same |
TWI744247B (en) | 2015-08-28 | 2021-11-01 | 美商亞穆尼克斯製藥公司 | Chimeric polypeptide assembly and methods of making and using the same |
KR20180053322A (en) | 2015-09-21 | 2018-05-21 | 압테보 리서치 앤드 디벨롭먼트 엘엘씨 | CD3 binding polypeptide |
TW201713360A (en) | 2015-10-06 | 2017-04-16 | Mayo Foundation | Methods of treating cancer using compositions of antibodies and carrier proteins |
CN115521374A (en) | 2015-11-02 | 2022-12-27 | 生物蛋白有限公司 | Conditionally active polypeptides |
CN108699136B (en) | 2015-12-07 | 2022-03-18 | Xencor股份有限公司 | Heterodimeric antibodies that bind CD3 and PSMA |
BR112018010945A2 (en) | 2015-12-30 | 2018-12-04 | Genentech Inc | formulations with reduced polysorbate degradation |
EP3399861A4 (en) | 2016-01-07 | 2019-08-07 | Mayo Foundation for Medical Education and Research | Methods of treating cancer with interferon |
MX2018009375A (en) | 2016-02-01 | 2018-09-05 | Bioverativ Therapeutics Inc | Optimized factor viii genes. |
CA3014531A1 (en) | 2016-02-12 | 2017-08-17 | Mayo Foundation For Medical Education And Research | Hematologic cancer treatments |
EP3423490A1 (en) | 2016-03-01 | 2019-01-09 | H. Hoffnabb-La Roche Ag | Obinutuzumab and rituximab variants having reduced adcp |
EP3423593A1 (en) | 2016-03-02 | 2019-01-09 | Institut National de la Sante et de la Recherche Medicale (INSERM) | Methods and kits for predicting the risk of relapse in patients suffering from idiopathic nephrotic syndrome |
TW201808978A (en) | 2016-03-08 | 2018-03-16 | 中央研究院 | Methods for modular synthesis of N-glycans and arrays thereof |
KR20230062894A (en) | 2016-03-14 | 2023-05-09 | 유니버시티에트 이 오슬로 | Engineered immunoglobulins with altered fcrn binding |
CA3017776A1 (en) | 2016-03-15 | 2017-09-21 | Generon (Shanghai) Corporation Ltd. | Multispecific fab fusion proteins and use thereof |
AU2017238118A1 (en) | 2016-03-21 | 2018-10-11 | Mayo Foundation For Medical Education And Research | Methods for improving the therapeutic index for a chemotherapeutic drug |
EP3432926A4 (en) | 2016-03-21 | 2019-11-20 | Mayo Foundation for Medical Education and Research | Methods for reducing toxicity of a chemotherapeutic drug |
CA3019373A1 (en) | 2016-03-29 | 2017-10-05 | Geltor, Inc. | Expression of proteins in gram-negative bacteria wherein the ratio of periplasmic volume to cytoplasmic volume is between 0.5:1 and 10:1 |
US10618969B2 (en) | 2016-04-06 | 2020-04-14 | Mayo Foundation For Medical Education And Research | Carrier-binding agent compositions and methods of making and using the same |
KR102514317B1 (en) | 2016-04-15 | 2023-03-27 | 마크로제닉스, 인크. | Novel B7-H3-binding molecules, antibody drug conjugates thereof and methods of use thereof |
WO2017182608A1 (en) | 2016-04-22 | 2017-10-26 | INSERM (Institut National de la Santé et de la Recherche Médicale) | Methods and vaccine compositions for the treatment of b-cell malignancies |
JP2019517485A (en) | 2016-05-27 | 2019-06-24 | ティージー セラピューティクス,インコーポレイテッド | Combination of anti-CD20 antibody, P13 kinase-delta selective inhibitor and BTK inhibitor to treat B cell proliferative disorders |
KR20230054508A (en) | 2016-06-14 | 2023-04-24 | 젠코어 인코포레이티드 | Bispecific checkpoint inhibitor antibodies |
US11098107B2 (en) | 2016-06-15 | 2021-08-24 | Sutro Biopharma, Inc. | Antibodies with engineered CH2 domains, compositions thereof and methods of using the same |
CN116063545A (en) | 2016-06-28 | 2023-05-05 | Xencor股份有限公司 | Heterodimeric antibodies that bind somatostatin receptor 2 |
CA3030745A1 (en) | 2016-07-13 | 2018-01-18 | Biogen Ma Inc. | Dosage regimens of lingo-1 antagonists and uses for treatment of demyelinating disorders |
JP2018035137A (en) | 2016-07-13 | 2018-03-08 | マブイミューン ダイアグノスティックス エイジーMabimmune Diagnostics Ag | Novel anti-fibroblast activated protein (FAP) binding agent and use thereof |
GB201613167D0 (en) | 2016-07-29 | 2016-09-14 | Univ Southampton | Cancer and b-cell related disease therapy |
WO2018039274A1 (en) | 2016-08-22 | 2018-03-01 | CHO Pharma Inc. | Antibodies, binding fragments, and methods of use |
US10793632B2 (en) | 2016-08-30 | 2020-10-06 | Xencor, Inc. | Bispecific immunomodulatory antibodies that bind costimulatory and checkpoint receptors |
CN107384932B (en) | 2016-08-31 | 2020-10-20 | 北京天广实生物技术股份有限公司 | Anti-human CD20 humanized monoclonal antibody MIL62, preparation method and application thereof |
EP4177271A1 (en) | 2016-09-01 | 2023-05-10 | Mayo Foundation for Medical Education and Research | Carrier-pd-l1 binding agent compositions for treating cancers |
RU2019109209A (en) | 2016-09-01 | 2020-10-05 | Мэйо Фаундейшн Фор Медикал Эдьюкейшн Энд Рисерч | METHOD AND COMPOSITIONS FOR TARGET-TARGETED IMPACT IN TREATMENT OF T-CELL TYPES OF CANCER |
CN109843924A (en) | 2016-09-06 | 2019-06-04 | 梅约医学教育与研究基金会 | The method for treating the cancer of expression PD-L1 |
US11590098B2 (en) | 2016-09-06 | 2023-02-28 | Mayo Foundation For Medical Education And Research | Methods of treating triple-negative breast cancer using compositions of antibodies and carrier proteins |
US11311631B2 (en) | 2016-09-06 | 2022-04-26 | Mayo Foundation For Medical Education And Research | Paclitaxel-albumin-binding agent compositions and methods for using and making the same |
MX2019002728A (en) | 2016-09-09 | 2019-08-16 | Tg Therapeutics Inc | Combination of an anti-cd20 antibody, pi3 kinase-delta inhibitor, and anti-pd-1 or anti-pd-l1 antibody for treating hematological cancers. |
CN108421048B (en) * | 2016-09-28 | 2021-04-20 | 首都医科大学附属北京世纪坛医院 | Nano active carbon targeted drug delivery system, preparation method and application thereof |
CN109862919A (en) | 2016-10-11 | 2019-06-07 | 免疫医疗有限公司 | The therapeutic agent that antibody-drug conjugates combined immunization mediates |
JP7273453B2 (en) | 2016-10-14 | 2023-05-15 | ゼンコア インコーポレイテッド | A bispecific heterodimeric fusion protein comprising an IL-15/IL-15R alpha Fc fusion protein and a fragment of a PD-1 antibody |
CA3045306A1 (en) | 2016-11-29 | 2018-06-07 | Boston Biomedical, Inc. | Naphthofuran derivatives, preparation, and methods of use thereof |
US20200003785A1 (en) | 2016-12-01 | 2020-01-02 | Inserm (Institut National De La Sante Et De La Recherche Medicale) | Use of anti-uchl1 igg plasma concentration for diagnosing idiopathic steroid sensitive nephrotic syndrome |
BR112019011198A2 (en) | 2016-12-02 | 2019-12-17 | Bioverativ Therapeutics Inc | methods of inducing immune tolerance to coagulation factors |
KR20190090827A (en) | 2016-12-02 | 2019-08-02 | 바이오버라티브 테라퓨틱스 인크. | How Chimeric Coagulation Factors Can Be Used to Treat Hemophilic Arthrosis |
AR110871A1 (en) | 2017-01-31 | 2019-05-08 | Bioverativ Therapeutics Inc | FACTOR PROTEINS IX OF FACTOR IX AND METHODS OF MANUFACTURE AND USE OF THE SAME |
GB201703876D0 (en) | 2017-03-10 | 2017-04-26 | Berlin-Chemie Ag | Pharmaceutical combinations |
WO2018187074A1 (en) | 2017-04-03 | 2018-10-11 | Immunomedics, Inc. | Subcutaneous administration of antibody-drug conjugates for cancer therapy |
SG11202003754YA (en) | 2017-05-16 | 2020-05-28 | Bhamis Research Laboratory Pvt Ltd | High concentration protein formulations with reduced viscosity |
JP2020520923A (en) | 2017-05-17 | 2020-07-16 | ボストン バイオメディカル, インコーポレイテッド | Methods for treating cancer |
JP2020529832A (en) | 2017-06-30 | 2020-10-15 | ゼンコア インコーポレイテッド | Targeted heterodimer Fc fusion protein containing IL-15 / IL-15Rα and antigen binding domain |
US11634488B2 (en) | 2017-07-10 | 2023-04-25 | International—Drug—Development—Biotech | Treatment of B cell malignancies using afucosylated pro-apoptotic anti-CD19 antibodies in combination with anti CD20 antibodies or chemotherapeutics |
WO2019020606A1 (en) | 2017-07-26 | 2019-01-31 | F. Hoffmann-La Roche Ag | Combination therapy with a bet inhibitor, a bcl-2 inhibitor and an anti-cd20 antibody |
US10759865B2 (en) | 2017-08-22 | 2020-09-01 | Eyal Levit | Treatment of diabetes mellitus |
US11180541B2 (en) | 2017-09-28 | 2021-11-23 | Geltor, Inc. | Recombinant collagen and elastin molecules and uses thereof |
WO2019077123A1 (en) | 2017-10-20 | 2019-04-25 | INSERM (Institut National de la Santé et de la Recherche Médicale) | Methods and kits for determining whether a subject has or is at risk of having of an autoimmune myopathy |
US10981992B2 (en) | 2017-11-08 | 2021-04-20 | Xencor, Inc. | Bispecific immunomodulatory antibodies that bind costimulatory and checkpoint receptors |
KR20200085828A (en) | 2017-11-08 | 2020-07-15 | 젠코어 인코포레이티드 | Bispecific and monospecific antibodies using novel anti-PD-1 sequences |
US11319355B2 (en) | 2017-12-19 | 2022-05-03 | Xencor, Inc. | Engineered IL-2 Fc fusion proteins |
WO2019175071A1 (en) | 2018-03-13 | 2019-09-19 | F. Hoffmann-La Roche Ag | Therapeutic combination of 4-1 bb agonists with anti-cd20 antibodies |
CA3094112A1 (en) | 2018-03-28 | 2019-10-03 | Bristol-Myers Squibb Company | Interleukin-2/interleukin-2 receptor alpha fusion proteins and methods of use |
US10982006B2 (en) | 2018-04-04 | 2021-04-20 | Xencor, Inc. | Heterodimeric antibodies that bind fibroblast activation protein |
JP2021520829A (en) | 2018-04-18 | 2021-08-26 | ゼンコア インコーポレイテッド | TIM-3 targeted heterodimer fusion protein containing IL-15 / IL-15RA Fc fusion protein and TIM-3 antigen binding domain |
EP3781599A1 (en) | 2018-04-18 | 2021-02-24 | Xencor, Inc. | Pd-1 targeted heterodimeric fusion proteins containing il-15/il-15ra fc-fusion proteins and pd-1 antigen binding domains and uses thereof |
BR112020023846A2 (en) | 2018-05-23 | 2021-04-13 | Adc Therapeutics Sa | MOLECULAR ADJUVANT |
SG11202012582QA (en) | 2018-07-03 | 2021-01-28 | Bristol Myers Squibb Co | Methods of producing recombinant proteins |
WO2020028909A1 (en) | 2018-08-03 | 2020-02-06 | Brown University | Oral formulations with increased uptake |
CN109273050B (en) * | 2018-08-03 | 2021-07-13 | 五邑大学 | System and method for analyzing pulse electron paramagnetic resonance data of complex polymer protein receptor and application |
WO2020047389A1 (en) | 2018-08-31 | 2020-03-05 | Regeneron Pharmaceuticals, Inc. | Dosing strategy that mitigates cytokine release syndrome for cd3/c20 bispecific antibodies |
WO2020061048A1 (en) | 2018-09-17 | 2020-03-26 | The United States Of America, As Represented By The Secretary, Department Of Health And Human Services | Bicistronic chimeric antigen receptors targeting cd19 and cd20 and their uses |
US11358999B2 (en) | 2018-10-03 | 2022-06-14 | Xencor, Inc. | IL-12 heterodimeric Fc-fusion proteins |
WO2020076776A1 (en) | 2018-10-10 | 2020-04-16 | Boehringer Ingelheim International Gmbh | Method for membrane gas transfer in high density bioreactor culture |
GB201816553D0 (en) | 2018-10-10 | 2018-11-28 | Centauri Therapeutics Ltd | Novel compounds and therapeutic uses thereof |
GB201816554D0 (en) | 2018-10-10 | 2018-11-28 | Centauri Therapeutics Ltd | Novel compounds and therapeutic uses thereof |
WO2020076849A1 (en) | 2018-10-11 | 2020-04-16 | The Scripps Research Institute | Antibody compounds with reactive arginine and related antibody drug conjugates |
US20210388101A1 (en) | 2018-10-15 | 2021-12-16 | Industry-Academic Cooperation Foundation, Yonsei University | Productivity-enhanced antibody and method for producing same |
RU2724469C2 (en) | 2018-10-31 | 2020-06-23 | Закрытое Акционерное Общество "Биокад" | Monoclonal antibody which specifically binds to cd20 |
US20210403971A1 (en) | 2018-11-02 | 2021-12-30 | Kyowa Kirin Co., Ltd. | Method for preparing liquid medium |
JP2022507718A (en) | 2018-11-20 | 2022-01-18 | コーネル ユニバーシティー | Macrocyclic complexes of radiation nuclides and their use in radiation therapy for cancer |
AU2018451747A1 (en) | 2018-12-06 | 2021-06-17 | F. Hoffmann-La Roche Ag | Combination therapy of diffuse large B-cell lymphoma comprising an anti-CD79b immunoconjugates, an alkylating agent and an anti-CD20 antibody |
WO2020115262A1 (en) | 2018-12-07 | 2020-06-11 | INSERM (Institut National de la Santé et de la Recherche Médicale) | Use of cd26 and cd39 as new phenotypic markers for assessing maturation of foxp3+ t cells and uses thereof for diagnostic purposes |
WO2020160323A2 (en) | 2019-01-31 | 2020-08-06 | Elektrofi, Inc. | Particle formation and morphology |
AU2020221821A1 (en) | 2019-02-13 | 2021-08-26 | The Brigham And Women's Hospital, Inc. | Anti-peripheral lymph node addressin antibodies and uses thereof |
CN113728107B (en) | 2019-02-18 | 2022-06-24 | Atb治疗公司 | Method for producing conjugate-toxin fusion proteins in plant cells or whole plants |
MX2021010313A (en) | 2019-02-27 | 2021-09-23 | Genentech Inc | Dosing for treatment with anti-tigit and anti-cd20 or anti-cd38 antibodies. |
WO2020180726A1 (en) | 2019-03-01 | 2020-09-10 | Xencor, Inc. | Heterodimeric antibodies that bind enpp3 and cd3 |
BR112021019612A2 (en) | 2019-04-01 | 2021-11-30 | Genentech Inc | Formulations, container, article of manufacture, method for producing the formulation and method for inhibiting aggregation of a protein present in an aqueous solution |
EP3953380A4 (en) | 2019-04-12 | 2023-01-25 | Geltor, Inc. | Recombinant elastin and production thereof |
EP3968993A1 (en) | 2019-05-14 | 2022-03-23 | F. Hoffmann-La Roche AG | Methods of using anti-cd79b immunoconjugates to treat follicular lymphoma |
CN114269749A (en) | 2019-06-10 | 2022-04-01 | 苏特罗生物制药公司 | 5H-pyrrolo [3,2-d ] pyrimidine-2, 4-diamino compounds and antibody conjugates thereof |
WO2020257235A1 (en) | 2019-06-17 | 2020-12-24 | Sutro Biopharma, Inc. | 1-(4-(aminomethyl)benzyl)-2-butyl-2h-pyrazolo[3,4-c]quinolin-4-amine derivatives and related compounds as toll-like receptor (tlr) 7/8 agonists, as well as antibody drug conjugates thereof for use in cancer therapy and diagnosis |
JP2022543781A (en) | 2019-08-01 | 2022-10-14 | ブリストル-マイヤーズ スクイブ カンパニー | Method for improving protein productivity in fed-batch cell culture |
WO2021038097A1 (en) | 2019-08-30 | 2021-03-04 | Vestlandets Innovasjonsselskap As | Method for the treatment of chronic fatigue syndrome using an inhibitory or cytotoxic agent against plasma cells |
CN114340675A (en) | 2019-09-12 | 2022-04-12 | 豪夫迈·罗氏有限公司 | Compositions and methods for treating lupus nephritis |
JP2022547546A (en) | 2019-09-13 | 2022-11-14 | エレクトロフィ,インコーポレイテッド | Compositions and methods for delivery of therapeutic biological agents for treatment of disease |
TW202122114A (en) | 2019-10-18 | 2021-06-16 | 美商建南德克公司 | Methods of using anti-cd79b immunoconjugates to treat diffuse large b-cell lymphoma |
US20230022576A1 (en) | 2019-11-19 | 2023-01-26 | Protalix Ltd. | Removal of constructs from transformed cells |
JP2023512084A (en) | 2020-01-31 | 2023-03-23 | シージェン インコーポレイテッド | Anti-CD30 antibody drug conjugates and their use for the treatment of non-Hodgkin's lymphoma |
WO2021168271A1 (en) | 2020-02-19 | 2021-08-26 | Elektrofi, Inc. | Droplet formation and particle morphology |
US20230095053A1 (en) | 2020-03-03 | 2023-03-30 | Sutro Biopharma, Inc. | Antibodies comprising site-specific glutamine tags, methods of their preparation and methods of their use |
JP2023522627A (en) | 2020-04-17 | 2023-05-31 | エレクトロフィ,インコーポレイテッド | Method of forming particles by continuous droplet formation and dehydration |
JP2023522930A (en) | 2020-04-24 | 2023-06-01 | ジェネンテック, インコーポレイテッド | Methods of Using Anti-CD79b Immunoconjugates |
EP4143234A4 (en) | 2020-04-26 | 2024-07-17 | Biocytogen Pharmaceuticals Beijing Co Ltd | Modified immunoglobulins |
EP4148070A4 (en) | 2020-05-03 | 2024-04-24 | Shanghai Miracogen Inc. | Antibody-drug conjugate and preparation thereof |
US11919956B2 (en) | 2020-05-14 | 2024-03-05 | Xencor, Inc. | Heterodimeric antibodies that bind prostate specific membrane antigen (PSMA) and CD3 |
GB202007842D0 (en) | 2020-05-26 | 2020-07-08 | Quell Therapeutics Ltd | Polypeptide useful in adoptive cell therapy |
CN116568824A (en) | 2020-08-03 | 2023-08-08 | 基因泰克公司 | Method for diagnosing and treating lymphoma |
GB202012331D0 (en) | 2020-08-07 | 2020-09-23 | Petmedix Ltd | Therapeutic antibodies |
KR20230166150A (en) | 2020-08-19 | 2023-12-06 | 젠코어 인코포레이티드 | Anti-cd28 compositions |
CN112062855B (en) | 2020-08-26 | 2024-08-30 | 北京天诺健成医药科技有限公司 | Development and application of drug therapeutic agent containing adapter |
GB202013477D0 (en) | 2020-08-27 | 2020-10-14 | Quell Therapeutics Ltd | Nucleic acid constructs for expressing polypeptides in cells |
WO2022043415A1 (en) | 2020-08-27 | 2022-03-03 | INSERM (Institut National de la Santé et de la Recherche Médicale) | Methods for detecting the presence of pemphigus-specific autoantibodies in a sample |
BR112023004296A2 (en) | 2020-09-10 | 2023-04-04 | Genmab As | METHOD FOR TREATING DIFFERENT GRAND B-CELL LYMPHOMA IN A HUMAN INDIVIDUAL |
IL301085A (en) | 2020-09-10 | 2023-05-01 | Genmab As | Bispecific antibody against cd3 and cd20 in combination therapy for treating diffuse large b-cell lymphoma |
EP4210742A1 (en) | 2020-09-10 | 2023-07-19 | Genmab A/S | Bispecific antibody against cd3 and cd20 in combination therapy for treating follicular lymphoma |
US20230357440A1 (en) | 2020-09-10 | 2023-11-09 | Genmab A/S | Bispecific antibody against cd3 and cd20 in combination therapy for treating follicular lymphoma |
EP4210746A1 (en) | 2020-09-10 | 2023-07-19 | Genmab A/S | Bispecific antibodies against cd3 and cd20 for treating chronic lymphocytic leukemia |
KR20230073270A (en) | 2020-09-22 | 2023-05-25 | 브리스톨-마이어스 스큅 컴퍼니 | Methods of producing therapeutic proteins |
WO2022074646A1 (en) | 2020-10-05 | 2022-04-14 | Protalix Ltd. | Dicer-like knock-out plant cells |
WO2022079211A1 (en) | 2020-10-16 | 2022-04-21 | Adc Therapeutics Sa | Glycoconjugates |
WO2022103983A2 (en) | 2020-11-11 | 2022-05-19 | Sutro Biopharma, Inc. | Fluorenylmethyloxycarbonyl and fluorenylmethylaminocarbonyl compounds, protein conjugates thereof, and methods for their use |
WO2022104150A1 (en) | 2020-11-12 | 2022-05-19 | Tg Therapeutics, Inc. | Triple combination to treat b-cell malignancies |
GB202102396D0 (en) | 2021-02-19 | 2021-04-07 | Adc Therapeutics Sa | Molecular adjuvant |
KR20230156079A (en) | 2021-03-09 | 2023-11-13 | 젠코어 인코포레이티드 | Heterodimeric antibody binding to CD3 and CLDN6 |
WO2022192586A1 (en) | 2021-03-10 | 2022-09-15 | Xencor, Inc. | Heterodimeric antibodies that bind cd3 and gpc3 |
AU2022238526A1 (en) | 2021-03-15 | 2023-09-07 | F. Hoffmann-La Roche Ag | Compositions and methods of treating lupus nephritis |
AU2022241765A1 (en) | 2021-03-24 | 2023-11-16 | The United States Of America, As Represented By The Secretary, Department Of Health And Human Services | Bicistronic chimeric antigen receptors designed to reduce retroviral recombination and uses thereof |
TW202306983A (en) | 2021-04-20 | 2023-02-16 | 日商日本醫事物理股份有限公司 | Radioactive complex of anti-cd20 antibody, and radiopharmaceutical |
US20240262917A1 (en) | 2021-05-06 | 2024-08-08 | Dana-Farber Cancer Institute, Inc. | Antibodies against alk and methods of use thereof |
CA3218170A1 (en) | 2021-05-12 | 2022-11-17 | Jamie Harue HIRATA | Methods of using anti-cd79b immunoconjugates to treat diffuse large b-cell lymphoma |
EP4347647A1 (en) | 2021-06-01 | 2024-04-10 | Institut National de la Santé et de la Recherche Médicale (INSERM) | Use of b cell depleting agents for the treatment of rheumatic heart disease |
CA3220872A1 (en) | 2021-06-08 | 2022-12-15 | Kyle LANDGRAF | Antibody-nkg2d ligand domain fusion protein |
EP4352096A1 (en) | 2021-06-08 | 2024-04-17 | Xyphos Biosciences Inc. | Antibody-nkg2d ligand domain fusion protein |
MX2023015152A (en) | 2021-06-17 | 2024-05-31 | Petmedix Ltd | Anti canine cd20 antibodies. |
JP2024523391A (en) | 2021-06-17 | 2024-06-28 | グラクソスミスクライン インテレクチュアル プロパティ リミテッド | Anti-BAFF antibodies for use in methods of treating LONG COVID and/or SARS-COV-2 post-acute sequelae (PASC) |
EP4377338A2 (en) | 2021-07-27 | 2024-06-05 | Novab, Inc. | Engineered vlrb antibodies with immune effector functions |
WO2023015234A1 (en) | 2021-08-05 | 2023-02-09 | Bristol-Myers Squibb Company | Cell culture methods for producing therapeutic proteins |
EP4380974A1 (en) | 2021-08-06 | 2024-06-12 | Petmedix Ltd. | Antibody fc variants |
EP4380978A1 (en) | 2021-08-07 | 2024-06-12 | Genentech, Inc. | Methods of using anti-cd79b immunoconjugates to treat diffuse large b-cell lymphoma |
AU2022332276A1 (en) | 2021-08-23 | 2024-04-04 | Bioverativ Therapeutics Inc. | Optimized factor viii genes |
MX2024002192A (en) | 2021-08-23 | 2024-03-13 | Bioverativ Therapeutics Inc | Closed-end dna production with inverted terminal repeat sequences. |
WO2023049687A1 (en) | 2021-09-21 | 2023-03-30 | Bristol-Myers Squibb Company | Methods of controlling the level of dissolved oxygen (do) in a solution comprising a recombinant protein in a storage container |
WO2023056403A1 (en) | 2021-09-30 | 2023-04-06 | Genentech, Inc. | Methods for treatment of hematologic cancers using anti-tigit antibodies, anti-cd38 antibodies, and pd-1 axis binding antagonists |
MX2024003963A (en) | 2021-09-30 | 2024-04-29 | Bioverativ Therapeutics Inc | Nucleic acids encoding factor viii polypeptides with reduced immunogenicity. |
WO2023097024A1 (en) | 2021-11-24 | 2023-06-01 | Dana-Farber Cancer Institute, Inc. | Antibodies against ctla-4 and methods of use thereof |
WO2023114543A2 (en) | 2021-12-17 | 2023-06-22 | Dana-Farber Cancer Institute, Inc. | Platform for antibody discovery |
WO2023114544A1 (en) | 2021-12-17 | 2023-06-22 | Dana-Farber Cancer Institute, Inc. | Antibodies and uses thereof |
US20230303693A1 (en) | 2022-01-28 | 2023-09-28 | Genmab A/S | Bispecific antibody against cd3 and cd20 in combination therapy for treating diffuse large b-cell lymphoma |
WO2023150552A1 (en) | 2022-02-04 | 2023-08-10 | Dana-Farber Cancer Institute, Inc. | Compositions and methods for treatment of neurological disorders |
WO2023152486A1 (en) | 2022-02-09 | 2023-08-17 | Petmedix Ltd | Therapeutic antibodies |
WO2023164487A1 (en) | 2022-02-22 | 2023-08-31 | Brown University | Compositions and methods to achieve systemic uptake of particles following oral or mucosal administration |
WO2023198635A1 (en) | 2022-04-11 | 2023-10-19 | Astrazeneca Ab | T cell binding proteins |
WO2023212721A1 (en) | 2022-04-29 | 2023-11-02 | Elektrofi, Inc. | Injectable suspensions |
US11807689B1 (en) | 2022-06-01 | 2023-11-07 | Tg Therapeutics, Inc. | Anti-CD20 antibody compositions |
US11884740B1 (en) | 2022-06-01 | 2024-01-30 | Tg Therapeutics, Inc. | Anti-CD20 antibody compositions |
US11814439B1 (en) | 2022-06-01 | 2023-11-14 | Tg Therapeutics, Inc. | Anti-CD20 antibody compositions |
US11965032B1 (en) | 2022-06-01 | 2024-04-23 | Tg Therapeutics, Inc. | Anti-CD20 antibody compositions |
WO2024006272A1 (en) | 2022-06-27 | 2024-01-04 | Sutro Biopharma, Inc. | β-GLUCURONIDE LINKER-PAYLOADS, PROTEIN CONJUGATES THEREOF, AND METHODS THEREOF |
WO2024015229A1 (en) | 2022-07-15 | 2024-01-18 | Sutro Biopharma, Inc. | Protease/enzyme cleavable linker-payloads and protein conjugates |
WO2024039670A1 (en) | 2022-08-15 | 2024-02-22 | Dana-Farber Cancer Institute, Inc. | Antibodies against cldn4 and methods of use thereof |
WO2024039672A2 (en) | 2022-08-15 | 2024-02-22 | Dana-Farber Cancer Institute, Inc. | Antibodies against msln and methods of use thereof |
WO2024102734A1 (en) | 2022-11-08 | 2024-05-16 | Genentech, Inc. | Compositions and methods of treating childhood onset idiopathic nephrotic syndrome |
WO2024153636A1 (en) | 2023-01-17 | 2024-07-25 | Institut National de la Santé et de la Recherche Médicale | Vasorin as a biomarker and biotarget in nephrology |
Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9444A (en) * | 1852-12-07 | Hot-air furnace | ||
US21781A (en) * | 1858-10-12 | Improved method o f lighting street-lamps by electricity | ||
US26804A (en) * | 1860-01-10 | Bridle-bit | ||
US95963A (en) * | 1869-10-19 | Improvement in fence | ||
US147885A (en) * | 1874-02-24 | Improvement in the manufacture of halters and bridles | ||
US163708A (en) * | 1875-05-25 | Improvement in harvester-rakes | ||
US186205A (en) * | 1877-01-16 | Improvement in buffing-rolls for thesoles of boots andshoes | ||
US197255A (en) * | 1877-11-20 | Improvement in receivers and stench-traps for street-sewers | ||
US206903A (en) * | 1878-08-13 | Improvement in cultivators | ||
US213784A (en) * | 1879-04-01 | Improvement in inlaying metallic scroll-ornaments in hard rubber and allied gums | ||
US4975278A (en) * | 1988-02-26 | 1990-12-04 | Bristol-Myers Company | Antibody-enzyme conjugates in combination with prodrugs for the delivery of cytotoxic agents to tumor cells |
US5439665A (en) * | 1988-07-29 | 1995-08-08 | Immunomedics | Detection and treatment of infectious and inflammatory lesions |
US5500362A (en) * | 1987-01-08 | 1996-03-19 | Xoma Corporation | Chimeric antibody with specificity to human B cell surface antigen |
US5595721A (en) * | 1993-09-16 | 1997-01-21 | Coulter Pharmaceutical, Inc. | Radioimmunotherapy of lymphoma using anti-CD20 |
US5648267A (en) * | 1992-11-13 | 1997-07-15 | Idec Pharmaceuticals Corporation | Impaired dominant selectable marker sequence and intronic insertion strategies for enhancement of expression of gene product and expression vector systems comprising same |
US5678180A (en) * | 1995-06-07 | 1997-10-14 | Hughes Electronics | Communication system and method providing dispatch and cellular interconnect communications |
US5686072A (en) * | 1992-06-17 | 1997-11-11 | Board Of Regents, The University Of Texas | Epitope-specific monoclonal antibodies and immunotoxins and uses thereof |
US5693780A (en) * | 1991-07-25 | 1997-12-02 | Idec Pharmaceuticals Corporation | Recombinant antibodies for human therapy |
US5736137A (en) * | 1992-11-13 | 1998-04-07 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US5776456A (en) * | 1992-11-13 | 1998-07-07 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US6183744B1 (en) * | 1997-03-24 | 2001-02-06 | Immunomedics, Inc. | Immunotherapy of B-cell malignancies using anti-CD22 antibodies |
US6306393B1 (en) * | 1997-03-24 | 2001-10-23 | Immunomedics, Inc. | Immunotherapy of B-cell malignancies using anti-CD22 antibodies |
USRE38008E1 (en) * | 1986-10-09 | 2003-02-25 | Neorx Corporation | Methods for improved targeting of antibody, antibody fragments, hormones and other targeting agents, and conjugates thereof |
US6652852B1 (en) * | 1986-10-27 | 2003-11-25 | Royalty Pharma Finance Trust | Chimeric antibody with specificity to human B cell surface antigen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4816567A (en) * | 1983-04-08 | 1989-03-28 | Genentech, Inc. | Recombinant immunoglobin preparations |
EP0173494A3 (en) * | 1984-08-27 | 1987-11-25 | The Board Of Trustees Of The Leland Stanford Junior University | Chimeric receptors by dna splicing and expression |
US5204244A (en) * | 1987-10-27 | 1993-04-20 | Oncogen | Production of chimeric antibodies by homologous recombination |
IL162181A (en) * | 1988-12-28 | 2006-04-10 | Pdl Biopharma Inc | A method of producing humanized immunoglubulin, and polynucleotides encoding the same |
WO1992007466A1 (en) * | 1990-11-05 | 1992-05-14 | Bristol-Myers Squibb Company | Synergistic therapy with combinations of anti-tumor antibodies and biologically active agents |
-
1993
- 1993-11-03 US US08/149,099 patent/US5736137A/en not_active Expired - Lifetime
- 1993-11-12 MY MYPI93002374A patent/MY111196A/en unknown
- 1993-11-12 CN CN200610090080XA patent/CN101007850B/en not_active Expired - Lifetime
- 1993-11-12 HU HU9501410A patent/HU219264B/en active Protection Beyond IP Right Term
- 1993-11-12 KR KR1019950701928A patent/KR100365632B1/en not_active IP Right Cessation
- 1993-11-12 DK DK08013898T patent/DK2000149T3/en active
- 1993-11-12 IL IL10759193A patent/IL107591A/en not_active IP Right Cessation
- 1993-11-12 AT AT08013898T patent/ATE431158T1/en active
- 1993-11-12 CN CN2004100488083A patent/CN1607006B/en not_active Expired - Lifetime
- 1993-11-12 CN CN2006100900829A patent/CN1912111B/en not_active Expired - Lifetime
- 1993-11-12 DE DE69334285T patent/DE69334285D1/en not_active Expired - Lifetime
- 1993-11-12 DE DE69334259T patent/DE69334259D1/en not_active Expired - Lifetime
- 1993-11-12 CN CN2006100900848A patent/CN101007851B/en not_active Expired - Lifetime
- 1993-11-12 CN CNB931214246A patent/CN1270774C/en not_active Expired - Lifetime
- 1993-11-12 PT PT99123967T patent/PT1005870E/en unknown
- 1993-11-12 DK DK99123967T patent/DK1005870T3/en active
- 1993-11-12 ES ES99123967T patent/ES2321567T3/en not_active Expired - Lifetime
- 1993-11-12 AT AT99123967T patent/ATE421335T1/en active
- 1993-11-12 DE DE122009000070C patent/DE122009000070I1/en active Pending
- 1993-11-12 UA UA95062664A patent/UA27946C2/en unknown
- 1993-11-12 EP EP08013898A patent/EP2000149B1/en not_active Expired - Lifetime
- 1993-11-12 PT PT08013898T patent/PT2000149E/en unknown
- 1993-11-12 CA CA002626445A patent/CA2626445A1/en not_active Withdrawn
- 1993-11-12 ZA ZA938466A patent/ZA938466B/en unknown
- 1993-11-12 PL PL93320526A patent/PL175557B1/en unknown
- 1993-11-12 SG SG1996002951A patent/SG45294A1/en unknown
- 1993-11-12 ES ES08013898T patent/ES2326144T3/en not_active Expired - Lifetime
- 1993-12-14 TW TW082110578A patent/TW376320B/en not_active IP Right Cessation
-
1997
- 1997-05-13 BR BR1100622-6A patent/BR1100622A/en active IP Right Grant
-
2002
- 2002-03-14 US US10/096,964 patent/US20030082172A1/en not_active Abandoned
-
2004
- 2004-07-15 FR FR04C0018C patent/FR04C0018I2/fr active Active
-
2006
- 2006-07-07 GE GEAP20069498A patent/GEP20074162B/en unknown
-
2008
- 2008-01-11 HK HK08100410.4A patent/HK1109634A1/en not_active IP Right Cessation
- 2008-01-11 HK HK08100409.7A patent/HK1109633A1/en not_active IP Right Cessation
-
2009
- 2009-05-13 HK HK09104369.6A patent/HK1125574A1/en not_active IP Right Cessation
- 2009-11-10 NL NL300424C patent/NL300424I1/en unknown
- 2009-11-11 LU LU91620C patent/LU91620I2/en unknown
-
2010
- 2010-01-06 GE GEAP201011620A patent/GEP20105119B/en unknown
- 2010-01-06 GE GEAP200911620A patent/GEPI20105119B/en unknown
Patent Citations (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US206903A (en) * | 1878-08-13 | Improvement in cultivators | ||
US21781A (en) * | 1858-10-12 | Improved method o f lighting street-lamps by electricity | ||
US213784A (en) * | 1879-04-01 | Improvement in inlaying metallic scroll-ornaments in hard rubber and allied gums | ||
US95963A (en) * | 1869-10-19 | Improvement in fence | ||
US147885A (en) * | 1874-02-24 | Improvement in the manufacture of halters and bridles | ||
US163708A (en) * | 1875-05-25 | Improvement in harvester-rakes | ||
US186205A (en) * | 1877-01-16 | Improvement in buffing-rolls for thesoles of boots andshoes | ||
US197255A (en) * | 1877-11-20 | Improvement in receivers and stench-traps for street-sewers | ||
US26804A (en) * | 1860-01-10 | Bridle-bit | ||
US9444A (en) * | 1852-12-07 | Hot-air furnace | ||
USRE38008E1 (en) * | 1986-10-09 | 2003-02-25 | Neorx Corporation | Methods for improved targeting of antibody, antibody fragments, hormones and other targeting agents, and conjugates thereof |
US6893625B1 (en) * | 1986-10-27 | 2005-05-17 | Royalty Pharma Finance Trust | Chimeric antibody with specificity to human B cell surface antigen |
US6652852B1 (en) * | 1986-10-27 | 2003-11-25 | Royalty Pharma Finance Trust | Chimeric antibody with specificity to human B cell surface antigen |
US6120767A (en) * | 1986-10-27 | 2000-09-19 | Pharmaceutical Royalties, L.L.C. | Chimeric antibody with specificity to human B cell surface antigen |
US5500362A (en) * | 1987-01-08 | 1996-03-19 | Xoma Corporation | Chimeric antibody with specificity to human B cell surface antigen |
US5721108A (en) * | 1987-01-08 | 1998-02-24 | Xoma Corporation | Chimeric antibody with specificity to human B cell surface antigen |
US4975278A (en) * | 1988-02-26 | 1990-12-04 | Bristol-Myers Company | Antibody-enzyme conjugates in combination with prodrugs for the delivery of cytotoxic agents to tumor cells |
US5439665A (en) * | 1988-07-29 | 1995-08-08 | Immunomedics | Detection and treatment of infectious and inflammatory lesions |
US5693780A (en) * | 1991-07-25 | 1997-12-02 | Idec Pharmaceuticals Corporation | Recombinant antibodies for human therapy |
US5686072A (en) * | 1992-06-17 | 1997-11-11 | Board Of Regents, The University Of Texas | Epitope-specific monoclonal antibodies and immunotoxins and uses thereof |
US6399061B1 (en) * | 1992-11-13 | 2002-06-04 | Idec Pharmaceutical Corporation | Chimeric and radiolabelled antibodies specific to human CD20 antigen and use thereof for treatment of B-cell lymphoma |
US6682734B1 (en) * | 1992-11-13 | 2004-01-27 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US5843439A (en) * | 1992-11-13 | 1998-12-01 | Anderson; Darrell R. | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US5776456A (en) * | 1992-11-13 | 1998-07-07 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US5648267A (en) * | 1992-11-13 | 1997-07-15 | Idec Pharmaceuticals Corporation | Impaired dominant selectable marker sequence and intronic insertion strategies for enhancement of expression of gene product and expression vector systems comprising same |
US5736137A (en) * | 1992-11-13 | 1998-04-07 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US6015542A (en) * | 1993-09-16 | 2000-01-18 | Coulter Pharmaceutical, Inc. | Radioimmunotherapy of lymphoma using anti-CD20 antibodies |
US6287537B1 (en) * | 1993-09-16 | 2001-09-11 | The Regents Of The University Of Michigan | Radioimmunotherapy of lymphoma using anti-CD20 antibodies |
US6565827B1 (en) * | 1993-09-16 | 2003-05-20 | Coulter Pharmaceutical, Inc. | Radioimmunotherapy of lymphoma using anti-CD20 antibodies |
US6090365A (en) * | 1993-09-16 | 2000-07-18 | Coulter Pharmaceutical, Inc. | Radioimmunotherapy of lymphoma using anti-CD20 antibodies |
US5843398A (en) * | 1993-09-16 | 1998-12-01 | Coulter Pharmaceutical, Inc. | Radioimmunotherapy of lymphoma using anti-CD20 antibodies |
US5595721A (en) * | 1993-09-16 | 1997-01-21 | Coulter Pharmaceutical, Inc. | Radioimmunotherapy of lymphoma using anti-CD20 |
US5678180A (en) * | 1995-06-07 | 1997-10-14 | Hughes Electronics | Communication system and method providing dispatch and cellular interconnect communications |
US6306393B1 (en) * | 1997-03-24 | 2001-10-23 | Immunomedics, Inc. | Immunotherapy of B-cell malignancies using anti-CD22 antibodies |
US6183744B1 (en) * | 1997-03-24 | 2001-02-06 | Immunomedics, Inc. | Immunotherapy of B-cell malignancies using anti-CD22 antibodies |
Cited By (96)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020197255A1 (en) * | 1992-11-13 | 2002-12-26 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabelled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US20030147885A1 (en) * | 1992-11-13 | 2003-08-07 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabeled antibodies to human B lymphocyte restricted differentiation antigen for treatment of B cell lymphoma |
US20080089893A9 (en) * | 1992-11-13 | 2008-04-17 | Idec Pharmaceuticals Corporation | Therapeutic application of chimeric and radiolabelled antibodies to human b lymphocyte restricted differentiation antigen for treatment of b cell lymphoma |
US7381560B2 (en) | 1992-11-13 | 2008-06-03 | Biogen Idec Inc. | Expression and use of anti-CD20 antibodies |
US7422739B2 (en) | 1992-11-13 | 2008-09-09 | Biogen Idec Inc. | Anti-CD20 antibodies |
US7744877B2 (en) | 1992-11-13 | 2010-06-29 | Biogen Idec Inc. | Expression and use of anti-CD20 Antibodies |
US9296821B2 (en) | 1998-08-11 | 2016-03-29 | Biogen Inc. | Combination therapies for B-cell lymphomas comprising administration of anti-CD20 antibodies |
US8329172B2 (en) | 1998-08-11 | 2012-12-11 | Biogen Idec | Combination therapies for B-cell lymphomas comprising administration of anti-CD20 antibody |
US20080038261A1 (en) * | 1998-08-11 | 2008-02-14 | Biogen Idec Inc. | Combination therapies for b-cell lymphomas comprising administration of anti-cd20 antibody |
US10113000B2 (en) | 1998-08-11 | 2018-10-30 | Biogen Inc. | Combination therapies for B-cell lymphomas comprising administration of anti-CD20 antibody |
US20030206903A1 (en) * | 1998-08-11 | 2003-11-06 | Idec Pharmaceuticals Corporation | Combination therapies for B-cell lynphomas comprising administration of anti-CD20 antibody |
US20110165159A1 (en) * | 1998-11-09 | 2011-07-07 | Biogen Idec Inc. | Use of chimeric anti-cd20 antibody as in vitro or in vivo purging agent in patients receiving bmt or pbsc transplant |
US8206711B2 (en) | 1998-11-09 | 2012-06-26 | Biogen Idec Inc. | Treatment of chronic lymphocytic leukemia using anti-CD20 antibodies |
US20100080769A1 (en) * | 1998-11-09 | 2010-04-01 | Biogen Idec Inc. | Treatment of Chronic Lymphocytic Leukemia using Anti-CD20 Antibodies |
US7682612B1 (en) | 1998-11-09 | 2010-03-23 | Biogen Idec Inc. | Treatment of hematologic malignancies associated with circulating tumor cells using chimeric anti-CD20 antibody |
US20090074760A1 (en) * | 1998-11-09 | 2009-03-19 | Grillo-Lopez Antonio J | Use of chimeric anti-cd20 antibody as in vitro or in vivo purging agent in patients receiving bmt or pbsc transplant |
US20110008336A1 (en) * | 1999-05-07 | 2011-01-13 | Genentech, Inc. | Treatment of Autoimmune Diseases |
US7820161B1 (en) | 1999-05-07 | 2010-10-26 | Biogen Idec, Inc. | Treatment of autoimmune diseases |
US9993550B2 (en) | 1999-05-07 | 2018-06-12 | Genentech, Inc. | Treatment of pemphigus |
US20110008338A1 (en) * | 1999-05-07 | 2011-01-13 | Genentech, Inc. | Treatment of Autoimmune Diseases |
US8545843B2 (en) | 1999-05-07 | 2013-10-01 | Genentech, Inc. | Treatment of vasculitis |
US20110008337A1 (en) * | 1999-05-07 | 2011-01-13 | Genetech, Inc. | Treatment of Autoimmune Diseases |
US20110008250A1 (en) * | 1999-05-07 | 2011-01-13 | Genentech, Inc. | Treatment of Autoimmune Diseases |
US10400043B2 (en) | 1999-08-11 | 2019-09-03 | Biogen, Inc. | Treatment of diffuse large-cell lymphoma with anti-CD20 antibody |
US9504744B2 (en) | 1999-08-11 | 2016-11-29 | Biogen Inc. | Treatment of diffuse large-cell lymphoma with anti-CD20 antibody |
US8821873B2 (en) | 1999-08-11 | 2014-09-02 | Biogen Idec Inc. | Treatment of diffuse large-cell lymphoma with anti-CD20 antibody |
US8557244B1 (en) | 1999-08-11 | 2013-10-15 | Biogen Idec Inc. | Treatment of aggressive non-Hodgkins lymphoma with anti-CD20 antibody |
US20060073146A1 (en) * | 2000-02-16 | 2006-04-06 | Genentech, Inc. | Uses of agonists and antagonists to modulate activity of TNF-related molecules |
US20050070689A1 (en) * | 2001-08-03 | 2005-03-31 | Genentech, Inc. | Taci and br3 polypeptides and uses thereof |
US20080171036A1 (en) * | 2002-07-25 | 2008-07-17 | Anan Chuntharapai | Taci antibodies and uses thereof |
US7799900B2 (en) | 2002-12-16 | 2010-09-21 | Genentech, Inc. | Immunoglobulin variants and uses thereof |
US20060034835A1 (en) * | 2002-12-16 | 2006-02-16 | Genentech, Inc. | Immunoglobulin variants and uses thereof |
US20090155257A1 (en) * | 2002-12-16 | 2009-06-18 | Genentech, Inc. | Immunoglobulin variants and uses thereof |
US8562992B2 (en) | 2002-12-16 | 2013-10-22 | Genentech, Inc. | Immunoglobulin variants and uses thereof |
US20100143352A1 (en) * | 2003-06-05 | 2010-06-10 | Genentech, Inc. | Combination therapy for b cell disorders |
US20050163775A1 (en) * | 2003-06-05 | 2005-07-28 | Genentech, Inc. | Combination therapy for B cell disorders |
EP2272868A2 (en) | 2003-06-05 | 2011-01-12 | Genentech, Inc. | Combination therapy for B cell disorders |
US20050095243A1 (en) * | 2003-06-05 | 2005-05-05 | Genentech, Inc. | Combination therapy for B cell disorders |
US20090136492A1 (en) * | 2003-08-29 | 2009-05-28 | Genentech, Inc. | Therapy of ocular disorders |
US20050053602A1 (en) * | 2003-08-29 | 2005-03-10 | Genentech, Inc. | Therapy of ocular disorders |
US20050186206A1 (en) * | 2003-12-19 | 2005-08-25 | Genentech, Inc. | Detection of CD20 in therapy of autoimmune diseases |
US20050191297A1 (en) * | 2003-12-19 | 2005-09-01 | Genentech, Inc. | Detection of CD20 in transplant rejection |
US20050271658A1 (en) * | 2004-05-05 | 2005-12-08 | Genentech, Inc. | Preventing autoimmune disease |
EP3130349A1 (en) | 2004-06-04 | 2017-02-15 | Genentech, Inc. | Method for treating multiple sclerosis |
US20100233121A1 (en) * | 2004-06-04 | 2010-09-16 | Genentech, Inc. | Method for treating multiple sclerosis |
US20060024295A1 (en) * | 2004-06-04 | 2006-02-02 | Genentech, Inc. | Method for treating lupus |
US20100303810A1 (en) * | 2004-06-04 | 2010-12-02 | Genentech, Inc. | Method for treating lupus |
US20060051345A1 (en) * | 2004-06-04 | 2006-03-09 | Genentech, Inc. | Method for treating multiple sclerosis |
US20060062787A1 (en) * | 2004-07-22 | 2006-03-23 | Genentech, Inc. | Method for treating Sjogren's syndrome |
US20060110387A1 (en) * | 2004-10-05 | 2006-05-25 | Genentech, Inc. | Method for treating vasculitis |
US20070025987A1 (en) * | 2004-10-05 | 2007-02-01 | Genentech, Inc. | Method for Treating Vasculitis |
US20060188495A1 (en) * | 2005-01-13 | 2006-08-24 | Genentech, Inc. | Treatment method |
US20080299117A1 (en) * | 2005-01-13 | 2008-12-04 | Barron Hal V | Treatment Method |
US20080095771A1 (en) * | 2005-01-13 | 2008-04-24 | Genentech, Inc. | Treatment Method |
US20060246004A1 (en) * | 2005-02-07 | 2006-11-02 | Genentech, Inc. | Antibody variants and uses thereof |
US20060263355A1 (en) * | 2005-02-28 | 2006-11-23 | Joanne Quan | Treatment of bone disorders |
US20060233797A1 (en) * | 2005-04-15 | 2006-10-19 | Genentech, Inc. | Treatment of inflammatory bowel disease (IBD) |
US7601335B2 (en) | 2005-05-20 | 2009-10-13 | Genentech, Inc. | Pretreatment of a biological sample from an autoimmune disease subject |
US20100015055A1 (en) * | 2005-05-20 | 2010-01-21 | Genentech, Inc. | Pretreatment of a biological sample from an autoimmune disease subject |
US20060263349A1 (en) * | 2005-05-20 | 2006-11-23 | Genentech, Inc. | Pretreatment of a biological sample from an autoimmune disease subject |
US10654940B2 (en) | 2005-11-15 | 2020-05-19 | Genentech, Inc. | Method for treating joint damage |
US10450379B2 (en) | 2005-11-15 | 2019-10-22 | Genetech, Inc. | Method for treating joint damage |
US9726673B2 (en) | 2005-11-23 | 2017-08-08 | Genentech, Inc. | Methods and compositions related to B cell assays |
US20070212733A1 (en) * | 2005-11-23 | 2007-09-13 | Genentech, Inc. | Methods and compositions related to B cell assays |
EP3327026A1 (en) | 2007-07-09 | 2018-05-30 | Genentech, Inc. | Prevention of disulfide bond reduction during recombinant production of polypeptides |
EP4219522A2 (en) | 2007-07-09 | 2023-08-02 | Genentech, Inc. | Prevention of disulfide bond reduction during recombinant production of polypeptides |
EP2586788A1 (en) | 2007-07-09 | 2013-05-01 | Genentech, Inc. | Prevention of disulfide bond reduction during recombinant production of polypeptides |
EP4365189A2 (en) | 2007-07-09 | 2024-05-08 | Genentech, Inc. | Prevention of disulfide bond reduction during recombinant production of polypeptides |
EP3597659A1 (en) | 2007-07-09 | 2020-01-22 | Genentech, Inc. | Prevention of disulfide bond reduction during recombinant production of polypeptides |
EP4335863A2 (en) | 2007-07-09 | 2024-03-13 | Genentech, Inc. | Prevention of disulfide bond reduction during recombinant production of polypeptides |
EP4245766A2 (en) | 2007-07-09 | 2023-09-20 | Genentech, Inc. | Prevention of disulfide bond reduction during recombinant production of polypeptides |
EP2233149A1 (en) | 2007-10-16 | 2010-09-29 | ZymoGenetics, Inc. | Combination of BLYS inhibition and anti-CD20 agents for treatment of autoimmune disease |
EP2077281A1 (en) | 2008-01-02 | 2009-07-08 | Bergen Teknologioverforing AS | Anti-CD20 antibodies or fragments thereof for the treatment of chronic fatigue syndrome |
US7914785B2 (en) | 2008-01-02 | 2011-03-29 | Bergen Teknologieverforing As | B-cell depleting agents, like anti-CD20 antibodies or fragments thereof for the treatment of chronic fatigue syndrome |
EP4364800A2 (en) | 2008-09-16 | 2024-05-08 | F. Hoffmann-La Roche AG | Methods for treating progressive multiple sclerosis |
US9994642B2 (en) | 2008-09-16 | 2018-06-12 | Genentech, Inc. | Methods for treating progressive multiple sclerosis |
US9683047B2 (en) | 2008-09-16 | 2017-06-20 | Genentech, Inc. | Methods for treating progressive multiple sclerosis |
EP3747464A1 (en) | 2008-09-16 | 2020-12-09 | F. Hoffmann-La Roche AG | Methods for treating progessive multiple sclerosis using an anti-cd20 antibody |
EP3095463A2 (en) | 2008-09-16 | 2016-11-23 | F. Hoffmann-La Roche AG | Methods for treating progressive multiple sclerosis |
US20100158903A1 (en) * | 2008-09-16 | 2010-06-24 | Craig Smith | Methods for treating progressive multiple sclerosis |
WO2010075249A2 (en) | 2008-12-22 | 2010-07-01 | Genentech, Inc. | A method for treating rheumatoid arthritis with b-cell antagonists |
US20110142836A1 (en) * | 2009-01-02 | 2011-06-16 | Olav Mella | B-cell depleting agents for the treatment of chronic fatigue syndrome |
US8512983B2 (en) | 2009-08-11 | 2013-08-20 | Martin Gawlitzek | Production of proteins in glutamine-free cell culture media |
EP3760712A1 (en) | 2009-08-11 | 2021-01-06 | F. Hoffmann-La Roche AG | Production of proteins in glutamine-free cell culture media |
US10982003B2 (en) | 2009-08-11 | 2021-04-20 | Genentech, Inc. | Production of proteins in glutamine-free cell culture media |
WO2011019619A1 (en) | 2009-08-11 | 2011-02-17 | Genentech, Inc. | Production of proteins in glutamine-free cell culture media |
US9714293B2 (en) | 2009-08-11 | 2017-07-25 | Genentech, Inc. | Production of proteins in glutamine-free cell culture media |
US10377831B2 (en) | 2009-09-11 | 2019-08-13 | Genentech, Inc. | Highly concentrated pharmaceutical formulations |
US10280227B2 (en) | 2009-09-11 | 2019-05-07 | Genentech, Inc. | Highly concentrated pharmaceutical formulations |
US10752696B2 (en) | 2009-09-11 | 2020-08-25 | Genentech, Inc. | Highly concentrated pharmaceutical formulations |
WO2011100403A1 (en) | 2010-02-10 | 2011-08-18 | Immunogen, Inc | Cd20 antibodies and uses thereof |
US11584793B2 (en) | 2015-06-24 | 2023-02-21 | Hoffmann-La Roche Inc. | Anti-transferrin receptor antibodies with tailored affinity |
US11603411B2 (en) | 2015-10-02 | 2023-03-14 | Hoffmann-La Roche Inc. | Bispecific anti-human CD20/human transferrin receptor antibodies and methods of use |
WO2017055542A1 (en) | 2015-10-02 | 2017-04-06 | F. Hoffmann-La Roche Ag | Bispecific anti-human cd20/human transferrin receptor antibodies and methods of use |
US10941205B2 (en) | 2015-10-02 | 2021-03-09 | Hoffmann-La Roche Inc. | Bispecific anti-human A-beta/human transferrin receptor antibodies and methods of use |
US12030952B2 (en) | 2015-10-02 | 2024-07-09 | Hoffmann-La Roche Inc. | Bispecific anti-human CD20/human transferrin receptor antibodies and methods of use |
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