WO2017059380A1 - Binding molecules with modified j-chain - Google Patents

Binding molecules with modified j-chain Download PDF

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Publication number
WO2017059380A1
WO2017059380A1 PCT/US2016/055041 US2016055041W WO2017059380A1 WO 2017059380 A1 WO2017059380 A1 WO 2017059380A1 US 2016055041 W US2016055041 W US 2016055041W WO 2017059380 A1 WO2017059380 A1 WO 2017059380A1
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Prior art keywords
igg
igm
iga
binding
adme
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PCT/US2016/055041
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English (en)
French (fr)
Inventor
Bruce Keyt
Leonard George Presta
Ramesh Baliga
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IGM Biosciences Inc
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IGM Biosciences Inc
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Priority to EP20204954.0A priority Critical patent/EP3824903A1/en
Priority to CA2999284A priority patent/CA2999284C/en
Priority to DK16784320.0T priority patent/DK3355913T3/da
Priority to EP16784320.0A priority patent/EP3355913B1/en
Priority to JP2018516668A priority patent/JP7065766B2/ja
Priority to FIEP16784320.0T priority patent/FI3355913T3/fi
Priority to ES16784320T priority patent/ES2996834T3/es
Priority to CN201680069842.XA priority patent/CN108463245A/zh
Priority to PL16784320.0T priority patent/PL3355913T3/pl
Priority to US15/764,859 priority patent/US10618978B2/en
Priority to AU2016329197A priority patent/AU2016329197B2/en
Priority to SI201631864T priority patent/SI3355913T1/sl
Application filed by IGM Biosciences Inc filed Critical IGM Biosciences Inc
Publication of WO2017059380A1 publication Critical patent/WO2017059380A1/en
Anticipated expiration legal-status Critical
Priority to US16/745,059 priority patent/US11542342B2/en
Priority to AU2021200348A priority patent/AU2021200348B2/en
Priority to JP2022072055A priority patent/JP7314356B2/ja
Priority to US18/054,776 priority patent/US12486336B2/en
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
    • C07K16/46—Hybrid immunoglobulins
    • C07K16/468—Immunoglobulins having two or more different antigen binding sites, e.g. multifunctional antibodies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K39/395—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum
    • A61K39/39533—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum against materials from animals
    • A61K39/39541—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum against materials from animals against normal tissues, cells
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K39/395—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum
    • A61K39/39533—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum against materials from animals
    • A61K39/39558—Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum against materials from animals against tumor tissues, cells, antigens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P19/00—Drugs for skeletal disorders
    • A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • A61P27/02—Ophthalmic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • A61P35/02—Antineoplastic agents specific for leukemia
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
    • C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
    • C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
    • C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
    • C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
    • C07K16/2803—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the immunoglobulin superfamily
    • C07K16/2809—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the immunoglobulin superfamily against the T-cell receptor (TcR)-CD3 complex
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
    • C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
    • C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
    • C07K16/2881—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against CD71
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
    • C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
    • C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
    • C07K16/2887—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against CD20
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K2039/505—Medicinal preparations containing antigens or antibodies comprising antibodies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/20—Immunoglobulins specific features characterized by taxonomic origin
    • C07K2317/24—Immunoglobulins specific features characterized by taxonomic origin containing regions, domains or residues from different species, e.g. chimeric, humanized or veneered
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/30—Immunoglobulins specific features characterized by aspects of specificity or valency
    • C07K2317/31—Immunoglobulins specific features characterized by aspects of specificity or valency multispecific
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/30—Immunoglobulins specific features characterized by aspects of specificity or valency
    • C07K2317/35—Valency
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/50—Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/52—Constant or Fc region; Isotype
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/50—Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/56—Immunoglobulins specific features characterized by immunoglobulin fragments variable (Fv) region, i.e. VH and/or VL
    • C07K2317/569—Single domain, e.g. dAb, sdAb, VHH, VNAR or nanobody®
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/60—Immunoglobulins specific features characterized by non-natural combinations of immunoglobulin fragments
    • C07K2317/62—Immunoglobulins specific features characterized by non-natural combinations of immunoglobulin fragments comprising only variable region components
    • C07K2317/622—Single chain antibody (scFv)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/70—Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
    • C07K2317/73—Inducing cell death, e.g. apoptosis, necrosis or inhibition of cell proliferation
    • C07K2317/734—Complement-dependent cytotoxicity [CDC]
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2317/00—Immunoglobulins specific features
    • C07K2317/90—Immunoglobulins specific features characterized by (pharmaco)kinetic aspects or by stability of the immunoglobulin
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2319/00—Fusion polypeptide
    • C07K2319/31—Fusion polypeptide fusions, other than Fc, for prolonged plasma life, e.g. albumin
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2319/00—Fusion polypeptide
    • C07K2319/70—Fusion polypeptide containing domain for protein-protein interaction
    • C07K2319/735—Fusion polypeptide containing domain for protein-protein interaction containing a domain for self-assembly, e.g. a viral coat protein (includes phage display)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K2319/00—Fusion polypeptide
    • C07K2319/90—Fusion polypeptide containing a motif for post-translational modification
    • C07K2319/91—Fusion polypeptide containing a motif for post-translational modification containing a motif for glycosylation

Definitions

  • Immune checkpoints refer to inhibitory signaling pathways that are encoded into the immune system, and which play a vital role in maintaining self- tolerance, as well as modulating the duration and amplitude of immune responses. See, e.g., Pardoll, Drew M. "The blockade of immune checkpoints in cancer immunotherapy.” Nature Reviews Cancer 12.4 (2012): 252-264; Postow, Michael A. et al., "Immune Checkpoint Blockade in Cancer Therapy," J Clin Oncol. 2015 Jun 10;33(17): 1974-82. doi: 10.1200/JCO.2014.59.4358.
  • the invention is further based on the recognition that due to their multivalent nature, IgM, IgA, IgG/IgM or IgG/IgA antibodies can provide increased avidity between the antibody and a target antigen, thereby facilitating binding of antigens with low level expression and/or low binding affinity. Furthermore, the optional multi-specific nature of the IgM, IgA, IgG/IgM or IgG/IgA portion of the subject binding molecules allows binding between specific numbers and/or specific types of binding targets, thereby facilitating binding between specific combinations of antigen targets.
  • the modified J-chain portion of the subject binding molecules comprises an ADME-modulating moiety, which facilitates an increased concentration and/or an increased half-life in a target tissue.
  • the modified J-chain is in a J-linker-ADME orientation, with the ADME- modulating moiety at a C-terminus of the modified J-chain.
  • the modified J-chain further comprises a second binding moiety. In some embodiments, the
  • FIG. 6 shows SDS PAGE analysis of anti-CD20 IgM antibodies with or without various anti-CD3 binding moieties on the J-chain in either orientation. J-chain containing IgM pentamers are easily distinguished from the hexameric IgM without J-chain.
  • FIG. 23 is an image of a reducing PAGE gel and a Western blot analysis of the antibodies listed in the table, one of which (1.5.3V15J15ABD) has bidentate J-chain configuration.
  • FIG. 26, Panel A is a graph showing concentration as a function of time for an IgM antibody that has a V-J-ABD bidentate J-chain configuration.
  • Panel B is a graph showing concentration as a function of time for an IgM antibody that has a V-J-HSA bidentate J-chain configuration.
  • Humanized forms of non-human (e.g., murine) antibodies are antibodies which contain minimal sequence derived from non-human immunoglobulin.
  • humanized antibodies are human immunoglobulins (recipient antibody) in which residues from a hypervariable region of the recipient are replaced by residues from a hypervariable region of a non-human species (donor antibody) such as mouse, rat, rabbit or nonhuman primate having the desired specificity, affinity, and capacity.
  • donor antibody such as mouse, rat, rabbit or nonhuman primate having the desired specificity, affinity, and capacity.
  • Fv framework region (FR) residues of the human immunoglobulin are also replaced by corresponding non- human residues.
  • humanized antibodies may comprise residues which are not found in the recipient antibody or in the donor antibody. These modifications are made to further refine antibody performance.
  • epitope includes any molecular determinant capable of specific binding to an antibody.
  • epitope determinants include chemically active surface groupings of molecules such as amino acids, sugar side chains, phosphoryl, or sulfonyl, and, in certain embodiments, may have specific three dimensional structural characteristics, and or specific charge characteristics.
  • An epitope is a region of an antigen that is bound by an antibody.
  • a "binding region” is a region on a binding target bound by a binding molecule.
  • Both IgA and IgM possess an 18-amino acid extension in the C terminus called the "tail-piece" (tp).
  • the IgM ( ⁇ ) and IgA (atp) tail-pieces differ at seven amino acid positions.
  • the IgM and IgA tail-piece is highly conserved among various animal species. The conserved penultimate cysteine residue in the IgA and IgM tail-pieces has been demonstrated to be involved in polymerization.
  • Both tail-pieces contain an N-linked carbohydrate addition site, the presence of which is required for dimer formation in IgA and J-chain incorporation and pentamer formation in IgM.
  • the structure and composition of the N-linked carbohydrates in the tail-pieces differ, suggesting differences in the accessibility of the glycans to processing by glycosyltransferases.
  • theuseofalbumin humanserum albumin
  • albumin-likeproteins e.g., albuminbindingpeptides
  • albuminbinding antibody moieties e.g., albumin binding scFv antibody fragments
  • ADME-modulating moietiesinasubjectbindingmolecule provides aneffectivestrategyformanipulatingthe pharmacokineticsofabinding molecule.
  • the neonatalFcreceptor(FcRn) is knowntoprovidearecyclingpathwaythatprovidesimmunoglobulinmoleculeswithalonger circulating half-life. E.g., Roopenian D.C. etal., NatureReviewsImmunology7, 715-725 (2007).
  • T-cell inhibitory signaling pathways are known in the art, and include, without limitation, those described in Pardoll et al. Non-limiting examples of T-cell inhibitory signaling pathways and components thereof are described in further detail below.
  • T-cell inhibitory signaling pathway is the signaling pathway involving programmed cell death- 1 (PD-1) and its ligand, programmed cell death ligand-1 (PD-L1).
  • PD-1 is an inhibitory cell surface receptor protein of the immunoglobulin superfamily, and is involved in the regulation of T-cell function in immunity and self- tolerance.
  • PD-L1 interacts with PD-1 on the surface of T-cells, and inhibits proliferation of T- cells by blocking cell cycle progression and cytokine production. Id.
  • T-cell stimulatory signaling pathways are known in the art, and include, without limitation, those described in Pardoll et al. Non-limiting examples of T-cell stimulatory signaling pathways and components thereof are described in further detail below.
  • the J-chain of a subject binding molecule includes an ADME- modulating moiety that reduces clearance of the binding molecule from the circulation of a subject, while the antibody antagonizes a T-cell inhibitory signaling pathway.
  • the purpose of such a binding molecule is to increase the half-life of the binding molecule via the J-chain ADME-modulating moiety, while simultaneously blocking or decreasing T-cell inhibitory signaling via the antibody. Due to their increased avidity, the subject IgM, IgA, IgG/IgM and IgG/IgA antibodies act as effective antagonists when directed to certain binding targets, such as members of a T-cell inhibitory signaling pathway, as described above.
  • the J-chain of the subject binding molecules includes an ADME-modulating moiety that reduces clearance of the binding molecule from the circulation of a subject, while the antibody agonizes a T-cell stimulatory signaling pathway.
  • the purpose of such a binding molecule is to increase the half-life of the binding molecule via the ADME-modulating moiety on the J-chain, while simultaneously maintaining or increasing T-cell stimulatory signaling via the antibody. Due to their increased avidity, the subject IgM, IgA, IgG/IgM and IgG/IgA antibodies act as super agonists when directed to certain binding targets, such as members of a T-cell stimulatory signaling pathway, as described above.
  • the J-chain of a subject binding molecule includes an ADME- modulating moiety that increases the retention of the binding molecule in an extra-vascular space, while the antibody binds to a binding target in the extra-vascular space.
  • the purpose of such a binding molecule is to increase the residence time of the binding molecule in the extra-vascular space via the ADME-modulating moiety on the J- chain, while simultaneously binding to a binding target using the higher avidity of the subject IgM, IgA, IgG/IgM and IgG/IgA antibodies.
  • Such binding molecules find utility in the treatment of diseases or disorders wherein high avidity binding to a binding target in an extra- vascular space is beneficial.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to PD-1 and antagonizes a PD-l-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises a transferrin receptor-binding scFv antibody fragment.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to PD-Ll and antagonizes a PD-Ll -mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises insulin.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to PD-Ll and antagonizes a PD-Ll -mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises an insulin receptor-binding antibody moiety.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to PD-Ll and antagonizes a PD-Ll - mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises an insulin receptor-binding scFv antibody fragment.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to PD-L1 and antagonizes a PD-L1 -mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises a Glutl-binding scFv antibody fragment.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to TIM3 and antagonizes a TIM3 -mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises human serum albumin.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to TIM3 and antagonizes a TIM3-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises a human serum albumin-binding peptide.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to LAG3 and antagonizes a LAG3 -mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises an Fc domain.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to CD137 and agonizes a CD137-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises an Fc domain.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to OX40 and agonizes an OX40-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises a leptin receptor-binding scFv antibody fragment.
  • IgG/IgA antibody binds to CD40 and agonizes a CD40-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises basigin.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to CD40 and agonizes a CD40-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises a basigin-binding antibody moiety.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to GITR and agonizes a GITR-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises IGF-1.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to GITR and agonizes a GITR-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises an IGF-1 -binding antibody moiety.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to CD27 and agonizes a CD27-mediated T-cell inhibitory signaling pathway has an ADME-modulating moiety on the J-chain that comprises a basigin-binding scFv antibody fragment.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to amyloid beta has an ADME-modulating moiety on the J-chain that comprises human serum albumin.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to amyloid beta has an ADME-modulating moiety on the J-chain that comprises a human serum albumin-binding peptide.
  • a binding molecule whose IgM, IgA, IgG/IgM, or IgG/IgA antibody binds to BACE has an ADME-modulating moiety on the J-chain that comprises a CD98hc-binding scFv antibody fragment.
  • IgM heavy chain This heavy chain construct has a full length ⁇ chain for an anti- CD20 IgM which binds CD20 on the surface of B-cells:
  • Example 5 Use of site specific chemoenzymatic labeling to generate imaging agents and antibody drug conjugates with IgMs

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PCT/US2016/055041 2015-09-30 2016-09-30 Binding molecules with modified j-chain Ceased WO2017059380A1 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
CA2999284A CA2999284C (en) 2015-09-30 2016-09-30 Binding molecules with modified j-chain
DK16784320.0T DK3355913T3 (da) 2015-09-30 2016-09-30 Bindingsmolekyler med modificeret j-kæde
EP16784320.0A EP3355913B1 (en) 2015-09-30 2016-09-30 Binding molecules with modified j-chain
JP2018516668A JP7065766B2 (ja) 2015-09-30 2016-09-30 改変ｊ鎖を有する結合分子
FIEP16784320.0T FI3355913T3 (fi) 2015-09-30 2016-09-30 Muokatun j-ketjun sisältäviä sitoutuvia molekyylejä
ES16784320T ES2996834T3 (en) 2015-09-30 2016-09-30 Binding molecules with modified j-chain
CN201680069842.XA CN108463245A (zh) 2015-09-30 2016-09-30 具有修饰的j链的结合分子
US15/764,859 US10618978B2 (en) 2015-09-30 2016-09-30 Binding molecules with modified J-chain
PL16784320.0T PL3355913T3 (pl) 2015-09-30 2016-09-30 Cząsteczki wiążące ze zmodyfikowanym łańcuchem j
EP20204954.0A EP3824903A1 (en) 2015-09-30 2016-09-30 Binding molecules with modified j-chain
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