WO2022037606A1 - Formulations liquides comprenant des anticorps humanisés à concentrations élevées pour le traitement de maladies liées à il-6 - Google Patents

Formulations liquides comprenant des anticorps humanisés à concentrations élevées pour le traitement de maladies liées à il-6 Download PDF

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WO2022037606A1
WO2022037606A1 PCT/CN2021/113241 CN2021113241W WO2022037606A1 WO 2022037606 A1 WO2022037606 A1 WO 2022037606A1 CN 2021113241 W CN2021113241 W CN 2021113241W WO 2022037606 A1 WO2022037606 A1 WO 2022037606A1
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antibody
formulation
antibody formulation
formulation according
arginine hydrochloride
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PCT/CN2021/113241
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English (en)
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Zhihao WU
Yong Wu
Yanyu Chen
Dandan HUANG
Xiaoping Luo
Kun ZHENG
Qingrui Li
Yili Yang
Yujie Liu
Cuihua Liu
Shengfeng Li
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Bio-Thera Solutions, Ltd.
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Priority to EP21857698.1A priority Critical patent/EP4199965A1/fr
Priority to CN202180051028.6A priority patent/CN116261448A/zh
Publication of WO2022037606A1 publication Critical patent/WO2022037606A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/08—Solutions
    • 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
    • A61K39/39591—Stabilisation, fragmentation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—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
    • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
    • A61K47/12—Carboxylic acids; Salts or anhydrides thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—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
    • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/16—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing nitrogen, e.g. nitro-, nitroso-, azo-compounds, nitriles, cyanates
    • A61K47/18—Amines; Amides; Ureas; Quaternary ammonium compounds; Amino acids; Oligopeptides having up to five amino acids
    • A61K47/183—Amino acids, e.g. glycine, EDTA or aspartame
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—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
    • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
    • 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
    • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • 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
    • C07K16/2866—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against receptors for cytokines, lymphokines, interferons
    • 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
    • C07K2317/70—Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
    • C07K2317/76—Antagonist effect on antigen, e.g. neutralization or inhibition of binding

Definitions

  • the invention relates to liquid formulations of high concentrations of humanized anti-interleukin 6 receptor (IL-6R) antibodies for treating interleukin 6 (IL-6) related diseases.
  • IL-6R humanized anti-interleukin 6 receptor
  • Humanized anti-interleukin 6 receptor antibodies are useful for the treatment of rheumatoid arthritis (RA) [Josef S Smolen, et al. EULAR recommendations for the management of rheumatoid arthritis with synthetic and biological disease-modifying antirheumatic drugs: 2013 update, Ann Rheum Dis, 2014; 73 (3) : 492–509] whose mechanisms are binding soluble and membrane-bound IL-6 receptors (sIL-6R and mIL-6R) and inhibiting sIL-6R and mIL-6R mediated signaling.
  • RA rheumatoid arthritis
  • compositions are typically administered by injection. Subcutaneous injections allow faster administration as compared with intravenous injections, and self-injection by patients. However, for antibodies that require a high dosage (e.g., over 100 mg per dose) , the antibody concentration in a subcutaneous formulation needs to be high due to the limited volume that can be administered by each subcutaneous injection, which presents formulation challenges. For example, due to high concentration, antibodies tend to aggregate which leads to reduced stability and shorter self-life. High concentration also increases the viscosity of the formulation which can make manufacturing and injection through a needle difficult. To increase shelf-life, formulations can be prepared as powders by the lyophilization. However, lyophilized powder requires reconstitution in water, making administration more complicated. Therefore, there is a need for high concentration antibody liquid formulations having long term stability and suitable for subcutaneous injection that do not require reconstitution.
  • the invention provides an antibody formulation comprising a high concentration of a humanized anti-interleukin 6 receptor antibody, a buffer system, a stabilizer and a surfactant.
  • the formulation does not comprise an antioxidant, such as methionine.
  • the antibody formulation of present invention comprises, consists essentially of, or consists of the following ingredients:
  • the pH of the antibody formulation is 5.0-7.0.
  • the antibody comprises a heavy chain shown in SEQ ID NO. 1 and a light chain shown in SEQ ID NO. 2. In some embodiments, the antibody comprises two heavy chains shown in SEQ ID NO. 1 and two light chains shown in SEQ ID NO. 2, which is denoted as BAT1806. In some embodiments, the antibody is tocilizumab or a biosimilar thereof, such as BAT1806. In some embodiments, humanized anti-interleukin 6 receptor antibody is expressed in CHO cells by genetic engineering methods and purified by a series of standard chromatographic steps. After the antibody is prepared, a pharmaceutical formulation is prepared.
  • the concentration of the humanized anti-IL-6 receptor antibody in the formulation is 130-280 mg/mL. In some embodiments, the concentration of the humanized anti-IL-6 receptor antibody in the formulation is 140-250 mg/mL. In some embodiments, the concentration of the humanized anti-IL-6 receptor antibody in the formulation is 160-200 mg/mL. In some embodiments, the concentration of the humanized anti-IL-6 receptor antibody in the formulation is 180 mg/mL.
  • the stabilizer is selected from arginine or a salt thereof (e.g., arginine hydrochloride) or a combination of arginine or a salt thereof and sucrose, or trehalose (which may be added as a hydrate) .
  • the stabilizer is a combination of 70-200 mM of arginine and/or a salt thereof (e.g., 14.746-42.132 mg/mL of arginine hydrochloride) and 29-87 mM (10-30 mg/mL) sucrose; or the stabilizer is a combination of 70-200 mM of arginine and/or a salt thereof (e.g., 14.746-42.132 mg/mL of arginine hydrochloride) and 26-79 mM trehalose (e.g., 10-30 mg/mL trehalose dihydrate) ; or the stabilizer is 70-200 mM of arginine and/or a salt thereof (e.g, 14.746-42.132 mg/mL arginine hydrochloride) .
  • the stabilizer is a combination of 80-100 mM of arginine and/or a salt thereof (e.g., 16.853-21.066 mg/mL of arginine hydrochloride) and 44-73 mM (15-25 mg/mL) sucrose; or the stabilizer is a combination of 80-100 mM of arginine and/or a salt thereof (e.g., 16.853-21.066 mg/mL of arginine hydrochloride) and 40-66 mM trehalose (e.g., 15-25 mg/mL trehalose dihydrate) ; or the stabilizer is 110-130 mM of arginine and/or a salt thereof (e.g, 23.173-27.386 mg/mL arginine hydrochloride) .
  • the stabilizer is a combination of about 90 mM of arginine and/or a salt thereof (e.g., about 18.959 mg/mL of arginine hydrochloride) and about 58.4 mM (about 20 mg/mL) sucrose; or the stabilizer is a combination of about 90 mM of arginine and/or a salt thereof (e.g., about 18.959 mg/mL of arginine hydrochloride) and about 52.9 mM trehalose (e.g., about 20 mg/mL trehalose dihydrate) ; or the stabilizer is about 120 mM of arginine and/or a salt thereof (e.g, about 25.279 mg/mL arginine hydrochloride) .
  • the surfactant is polysorbate-80. In some embodiments, the surfactant is 0.1-0.7 mg/mL polysorbate-80. In some embodiments, the surfactant is 0.45-0.55 mg/mL polysorbate-80. In some embodiments, the surfactant is about 0.5 mg/mL polysorbate-80.
  • the buffer system comprises 5-20 mM histidine and a salt thereof or 5-20 mM acetic acid and a salt thereof. In some embodiments, the buffer system comprises 8-15 mM histidine and a salt thereof or 8-15 mM acetic acid and a salt thereof. In some embodiments, the buffer system comprises 10 mM histidine and a salt thereof. In some embodiments, the buffer system comprises 10 mM acetic acid and a salt thereof.
  • the pH of the antibody formulation is 5.5-6.5; or, the pH of the antibody formulation is between 5.6 and 6.4; or, the pH of the antibody formulation is between 5.8 and 6.2; or, the pH of the antibody formulation is between 5.8 and 6.0; or, the pH of the antibody formulation is between 6.0 and 6.2; or, the pH of the antibody formulation is about 5.8.
  • the antibody formulation has a viscosity of from 0 to 20 cP. In some embodiments, the antibody formulation has a viscosity of from 5 cP to 15 cP. In some embodiments, the antibody formulation has a viscosity of from 8 cP to 12 cP. In some embodiments, the antibody formulation has a viscosity of about 10 cP.
  • the antibody formulation comprises, consists essentially of, or consists of:
  • the pH is 5.6-6.4.
  • the formulation comprises, consists essentially of, or consists of:
  • 40-66 mM trehalose e.g., 15-25 mg/mL trehalose dihydrate
  • the pH is 5.6-6.4.
  • the formulation comprises, consists essentially of, or consists of:
  • the pH is 5.6-6.4.
  • the formulation comprises, consists essentially of, or consists of:
  • the pH is about 5.6-6.4.
  • the formulation comprises, consists essentially of, or consists of:
  • trehalose e.g., 20 mg/mL trehalose dihydrate
  • the pH is about 5.6-6.4.
  • the formulation comprises, consists essentially of, or consists of:
  • the pH is about 5.6-6.4.
  • the pH of the antibody formulation is about 5.8. In some embodiments, the pH of the antibody formulation is about 6.
  • the viscosity of the antibody formulation is 5 cP to 15 cP. In some embodiments, the viscosity of the antibody formulation is 8 cP to 12 cP. In some embodiments, the viscosity of the antibody formulation is about 10 cP.
  • a base is added to the antibody formulation for adjusting the pH.
  • the base is NaOH.
  • the antibody formulation is an aqueous formulation for injection.
  • the formulation is suitable for subcutaneous injection.
  • the invention also provides a method to prepare the antibody formulation, comprising the steps of:
  • the pH of the solution prepared in the step (1) is adjusting with an aqueous sodium hydroxide solution.
  • the method further comprises filtering the solution prepared in step (1) through a filter membrane into an aseptic container before adding to the antibody solution.
  • the pore size of the filter membrane being 0.22 ⁇ m for filtering bacteria and fungi.
  • the surfactant is added to the buffered antibody solution as a surfactant solution.
  • the formulations disclosed herein are prepared without lyophilization.
  • the antibody formulation is a pharmaceutical formulation for treating IL-6 related diseases.
  • a method for treating IL-6 related diseases comprising administering an effective amount of a formulation described herein to a patient in need thereof.
  • the IL-6 related diseases include: adult rheumatoid arthritis, systemic juvenile idiopathic arthritis, polyarticular juvenile idiopathic arthritis, giant cell arteritis, giant lymph node hyperplasia, cytokine storm caused by immunotherapy, cytokine release syndrome, adult Still's disease, recurrent polychondritis, type II diabetes, ankylosing spondylitis, thyroid-associated ocular diseases, cardiovascular diseases caused by rheumatoid arthritis, polymyalgia rheumatica, acute graft-versus-host disease, non-ST-segment elevation myocardial infarction, systemic lupus erythematosus, schizophrenia, uveitis, ovarian cancer, anti-neutroph
  • the IL-6 related disease is selected from rheumatoid arthritis, cytokine release syndrome, systemic juvenile idiopathic arthritis, polyarticular juvenile idiopathic arthritis, giant cell arteritis, and giant lymph node hyperplasia.
  • the effective amount of the formulation is an amount that comprises 120-300 mg per dose of the antibody once every 1 to 3 weeks.
  • the antibody formulations provided by the invention comprise a high concentration of antibody with an acceptable viscosity, low turbidity and high stability suitable for administering high doses of the antibody by subcutaneous injections.
  • the antibody formulations have been developed to remarkably inhibit the formation of acidic peaks, dimers, aggregates, degradants and insoluble microparticles during freezing/thawing cycles, long-term storage and temperature variation processes.
  • the humanized anti-interleukin 6 receptor antibodies remain stable in the above formulations after at least 3 freeze-thaw cycles, stable at room temperature for at least 3 months. Therefore, the antibody formulations of the present invention can be used for stably storing the humanized anti-interleukin 6 receptor antibody for treating IL-6-related diseases by subcutaneous injections of the antibody in high doses required for treatment.
  • the present invention provides antibody formulations by selecting buffer solutions and stabilizers, to enhance the stability of the high concentration humanized anti-interleukin 6 receptor antibody formulation, and prevent monoclonal antibody aggregation, degradation and acidic isomer increase, while having low turbidity and viscosity acceptable for subcutaneous injection.
  • compositions or methods are intended to mean that the compositions or methods, etc., include the recited elements, but do not exclude others.
  • Consisting essentially of when used to define compositions or methods, shall mean excluding other elements of any essential significance to the combination for the intended use, but not excluding elements that do not materially affect the characteristic (s) of the compositions or methods.
  • Consisting of shall mean excluding elements not specifically recited. Embodiments defined by each of these transition terms are within the scope of this invention.
  • Stability refers to the situation that in a liquid formulation comprising an antibody, the antibody does not, or only rarely, aggregate, degrade, or fragment under given production, formulation, transportation, and/or storage conditions. “Stable” formulations maintain biological activity under given production, formulation, transportation and/or storage conditions. The stability of the antibody, can be assessed by measuring the degree of aggregation, degradation or fragmentation and the like of the formulation by techniques such as SEC-HPLC, IEC-HPLC, CE-SDS, etc. In some embodiments, the main antibody peak in a stable formulation does not decrease more than 5 %after storing at room temperature for at least 3 months.
  • a buffer or buffer system is included in a formulation
  • the buffer is included in the formulation and the buffer system is formed in the formulation by the buffer.
  • a buffer is typically a combination of a weak acid or a weak base and its salt.
  • a histidine buffer also called a histidine salt buffer
  • an acetate buffer is typically formed by acetic acid and one or more of its salts, such as sodium acetate.
  • the molar concentration of the buffer includes both the free acid/base and the salts.
  • the concentration of the monoclonal antibody in the antibody formulation is about 120-300 mg/mL. In some embodiments, the concentration of the monoclonal antibody in the antibody formulation is about 130-280 mg/mL. In some embodiments, the concentration of the monoclonal antibody in the antibody formulation is about 140-250 mg/mL. In some embodiments, the concentration of the monoclonal antibody in the antibody formulation is about 160-200 mg/mL. In some embodiments, the concentration of the monoclonal antibody in the antibody formulation is about 180 mg/mL.
  • the buffer system is selected from histidine (His) buffer, citrate (CB) buffer, sodium acetate (NaAC) buffer, and succinic acid (Sua) buffer. In some embodiments, the buffer system is histidine buffer. In some embodiments, buffer system is sodium acetate buffer.
  • the stabilizer comprises arginine hydrochloride, proline, lysine hydrochloride, glycine, histidine, or sodium glutamate.
  • the addition of the stabilizers further decreases the viscosity of the formulation.
  • the stabilizer is arginine hydrochloride.
  • the surfactant is polysorbate-80.
  • the formulation consists essentially of: about 180 mg/mL humanized anti-IL-6 receptor antibody, about 10 mM histidine salt buffer, about 0.5 mg/mL polysorbate-80, about 90 mM arginine hydrochloride, about 20 mg/mL sucrose, water for injection, with pH 5.8-6.0, and viscosity 8-12 cP.
  • the formulation consists essentially of: about 180 mg/mL humanized anti-IL-6 receptor antibody, about 10 mM sodium acetate buffer solution, about 0.5 mg/mL polysorbate-80, about 90 mM arginine hydrochloride, about 20 mg/mL trehalose dihydrate, water for injection, with pH 5.8-6.0, and viscosity 8-12 cP.
  • the formulation consists essentially of: about 180 mg/mL humanized anti-IL-6 receptor antibody, about 10 mM sodium acetate buffer solution, about 0.5 mg/mL polysorbate-80, about 120 mM arginine hydrochloride, water for injection, with pH 5.8-6.0, and viscosity 8-12 cP.
  • the formulation is Formulation 1. In some embodiments, the formulation is Formulation 2. In some embodiments, the formulation is Formulation 3.
  • the antibody formulations of the present invention can remain stable for at least 3 months at room temperature, and remain stable after at least 3 freeze-thaw cycles.
  • liquid formulations containing the monoclonal antibodies provided by the invention provide formulation combinations capable of stably storing the active ingredients.
  • Table 1 shows the ingredients of Formulations 1, 2, 3 and 4:
  • the present invention provides formulation comprising a high concentration antibody for protecting monoclonal antibody, which may comprise about 120-300 mg/mL antibody, about 5-20 mM histidine salt buffer, about 0.25-1 mg/mL polysorbate-80, and a stabilizer selected from the group of about 70-200 mM arginine hydrochloride with/without combination of about 10-50 mg/mL sucrose, or about 10-50 mg/mL trehalose dihydrate, with a pH of about 5.0-7.0.
  • a high concentration antibody for protecting monoclonal antibody which may comprise about 120-300 mg/mL antibody, about 5-20 mM histidine salt buffer, about 0.25-1 mg/mL polysorbate-80, and a stabilizer selected from the group of about 70-200 mM arginine hydrochloride with/without combination of about 10-50 mg/mL sucrose, or about 10-50 mg/mL trehalose dihydrate, with a pH of about 5.0-7.0.
  • the formulation comprises about 180 mg/mL antibody, about 10 mM histidine salt buffer, about 0.5 mg/mL polysorbate-80, about 90 mM arginine hydrochloride, about 20 mg/mL sucrose, with pH 5.6-6.4. In some embodiments, the formulation comprises about 180 mg/mL antibody, about 10 mM sodium acetate buffer, about 0.5 mg/mL polysorbate-80, about 90 mM arginine hydrochloride, about 20 mg/mL trehalose dihydrate, with pH 5.6-6.4. In some embodiments, the formulation comprises about 180 mg/mL antibody, about 10 mM sodium acetate buffer, about 0.5 mg/mL polysorbate-80, about 120 mM arginine hydrochloride, with pH 5.6-6.4.
  • the “mass to volume ratio” is the ratio of the mass of the ingredients to the volume of the formulation.
  • the BAT1806 antibody is a humanized anti-interleukin 6 receptor antibody prepared through antibody preparation technology.
  • a CHO cell line capable of stably expressing BAT1806 was constructed, and the supernatant was collected and purified through PROTEIN A.
  • the antibody formulations can be prepared by a method that comprises the steps of:
  • Formulation 3 was prepared as follows:
  • the above measured ingredients were dissolved in water for injection to obtain 1 L solution having 10 mM histidine buffer, 900 mM arginine hydrochloride, 200 mg/mL sucrose, and 0.5 mg/mL polysorbate-80, the sequence of adding the ingredients of the formulation does not affect the quality of the formulation, and can be flexibly selected.
  • the solution prepared in (a) was then filtered through a hydrophilic polyvinylidene fluoride filter membrane of 0.22 ⁇ m pore size into an aseptic container.
  • a buffer solution having 10 mM histidine buffer and a surfactant solution having 100 mg/mL polysorbate-80 were prepared by dissolving a desired amount of histidine, histidine hydrochloride or polysorbate-80 in water for injection.
  • weight, weight to volume ratio, volume to volume ratio referred to herein may be converted to moles and/or molar concentrations using well-known molecular weights of the ingredients.
  • weight of the ingredients may be proportionally adjusted when different formulation volumes are required. For example, 16 L, 14 L, 12 L, 10 L, 5 L of the formulation comprises 1.6, 1.4, 1.2, 1.0, 0.5 times of the cited weights, respectively.
  • a sample of a formulation being tested was diluted with water to an antibody concentration of 5 mg/mL and tested by SEC-HPLC.
  • the chromatographic column was TSK-GEL G3000SWXL 7.8 ⁇ 300 mM, 5 ⁇ m (TOSOH) .
  • the mobile phase was 200 mM K3PO4 with 250 mM KCl (pH 7.0) .
  • the UV detection wavelength was set at 280nm, the column temperature was 30 °C, the loading quantity of sample was 40 ⁇ L (200 ⁇ g protein) , and the flow was kept for 35 minutes at a rate of 0.5mL/min.
  • the chromatography was recorded and after integration, the percentage of monomer and aggregate in the sample solution was calculated by area normalization method.
  • a sample of a formulation being tested was diluted with water to an antibody concentration of 5mg/mL and tested by IEC-HPLC.
  • Chromatographic conditions column, TSK-GEL 4.6 ⁇ 100 mM, 7 ⁇ m (TOSOH) ; mobile phase, mobile phase A (20 mM ACES, pH 8.0) and mobile phase B (20 mM ACES+200 mM NaCl, pH 8.0) ; the loading quantity of sample was 50 ⁇ g; the UV detection wavelength was 280 nm; gradient elution was performed according to the elution gradient given below for 45 minutes. The chromatography was recorded. And after integration, the percentage of the main peak, the acidic region and the basic region was respectively calculated using a peak area normalization method.
  • UV spectrophotometer Eppendorf, BioPhotometer plus
  • NaAc sodium acetate buffer
  • Table 2 shows the types of buffer and the pH for formulations containing 180 mg/mL BAT1806, 90 mM Arg-HCl, 20 mg/mL sucrose, 0.5mg/mL polysorbate-80, and 10 mM buffer.
  • SEC-HPLC monomer purity
  • IEC-HPLC charge isomer
  • the formulations of high concentration antibody contained 180 mg/mL antibody (BAT1806) , 90 mM Arg-HCl, 20 mg/mL sucrose, 0.5 mg/mL polysorbate-80, and 10 mM histidine salt buffer, and pH was adjusted to 5.4, 5.6, 5.8, 6.0, 6.2, 6.4 or 6.6 by HCl or NaOH.
  • the viscosity of solutions containing a series of concentration antibody (102 mg/mL, 158.9 mg/mL, 181 mg/mL, 189.7 mg/mL, and 215 mg/mL) and 10 mM sodium acetate buffer at pH 5.8 were determined.
  • the relationship between antibody concentration and solution viscosity is shown in Fig. 1. As can be seen from the results, the viscosity increases with the increase of antibody concentration. At the concentration of about 180 mg/mL, the viscosity is about 15 cP.
  • the formulation contained high concentration antibody (BAT1806) , viscosity reducing agent (s) , 0.5 mg/mL polysorbate-80, and 20 mM histidine salt buffer, pH 5.87.
  • the antibody concentration, the viscosity reducing agent (s) and the viscosity are shown in Table 7.
  • Formulations 1, 2, 3, and 4 were formulated according to the method of Example 1. (Formulation 5) was manufactured by Genentech (B1095B01) .
  • the protein T m (half denaturation temperature) was determined by multifunctional protein stability analysis system (UNcle, Unchained Labs) through the detection method of full spectrum of fluorescence, static light scattering and dynamic light scattering.
  • the turbidity of the formulation was determined according to the method of Example 2 under the optical density (OD) 340 nm. And the viscosity of formulation was determined. The results are shown in Table 8.
  • T m results show that Formulation 3 had a highest T m value, indicating that the protein would be more stable in Formulation 3. Compared with Formulation 4, even though Formulation 3 comprised an amount of sucrose and did not comprise methionine, the viscosity of Formulation 3 was the lowest and lower than that of Formulation 4. Formulations 1, 2 and 3 had lower turbidity compared with Formulation 4. The size, turbidity and viscosity of all formulations are acceptable.
  • BAT1806 antibody Formulation 1 Formulation 2, Formulation 3, Formulation 4 with an antibody concentration of about 180 mg/mL were prepared as described in Example 1.
  • Formulations 1, 2, 3, 4, three freeze-thaw cycles were repeated under -60 °C to 25 °C. The transparency, turbidity, SEC, IEC were observed.
  • the turbidity was measured as described in Example 4. The results are shown in Table 9. The turbidity of Formulation 4 had an increasing tend with the increase of freeze-thaw cycles, while the turbidities of other formulations did not increase.
  • Formulations 1, 2, 3, and 4 were formulated according to the method of Example 1.
  • (Formulation 5) was manufactured by Genentech (B1095B01) .
  • the five formulations were placed in a biochemical incubator for 3 months under the condition of (25 ⁇ 2) °C and sampled at the end of the 0 th (0M) , 1 st (1M) , 2 nd (2M) , 3 rd (3M) and 6 th month (6M) , respectively.
  • the samples were examined with regard to monomer purity (SEC-HPLC) and charge isomer.
  • the monomer purity (SEC-HPLC) and charge isomer (IEC-HPLC) were determined as described in Example 2. The results are shown in Table 11. It can be seen from Table 11 that under the acceleration conditions, the monomer purity decreased with time over 6 months, indicating that fragments were produced under the acceleration conditions, but the SEC main peak of the antibody decreased by no more than 3.22%; with respect to IEC-HPLC, under the condition of 25 °C, the content of IEC main peaks of antibody decreased, and the degradation trend was basically the same, and the IEC main peak decreased by no more than 11.38%; the CE-SDS-NR main peak decreased by no more than 3.16%. While Formulation 3 comprises lower arginine concentration with no methionine, it displayed similar stability by SEC-HPLC and IEC-HPLC, and higher stability measured by CE-SDS compared with Formulation 5.
  • Formulations 1, 2, 3 and 4 were subjected to high temperature and light studies to investigate the stability of the formulations under high temperature (40 °C for 4 weeks) and light conditions (4500 ⁇ 500 Lx) .
  • the test method is described in the other examples.
  • Example 11 Amino Acid Sequence of the Humanized Anti-interleukin 6 Receptor Antibody BAT1806
  • the humanized anti-interleukin 6 receptor antibody BAT1806 for the treatment of IL-6 related diseases was expressed in CHO cells by known genetic engineering technology and obtained by purifying through a series of standard chromatographic steps.
  • BAT1806 is an IgG antibody comprising two heavy chains and two light chains, with a molecular weight of 145 kDa; each heavy chain contains 449 amino acids as shown in Table 16, with a molecular weight of 53 kDa; each light chain contains 214 amino acids shown in Table 17, with a molecular weight of 24 kDa.
  • the humanized anti-interleukin 6 receptor antibody BAT1806 was expressed in CHO cells.
  • the expression vector containing the antibody gene was constructed by a conventional molecular biology method (molecular cloning) using a derived cell line of CHO-K1 cells (ATCC CCL61) as a host cell for expression.
  • a high yield stable cell line is briefly described as follows: host cells were grown in suspension in CD-CHO medium (Gibco, CA) , the host cells in logarithmic growth phase were centrifuged, resuspended in fresh CD-CHO medium, the cells were counted and the cell density was adjusted to 1.43 ⁇ 10 7 cells/mL, 600ul of the above cell suspension was added to an electroporation cuvette, and then 40ug linearized plasmid was added, and pipetting was used to mix the cells with the plasmid uniformly. Electroshock conversion was performed using a Bio-rad electrometer with instrument parameters set as follows: capacitance: 960uFD, and voltage: 300 V. Typically the electric shock was performed for 15-20 milliseconds.
  • the electrically shocked cells were immediately resuspended in 37 °C pre-heated CD-CHO medium, inoculated in a 96-well plate at 100ul per well, and 2-3 days later an equal amount of selection medium (CD-CHO media + 50 ⁇ M MSX) was added.
  • the 96-well plate cell culture supernatant was analyzed to determine the level of antibody expression. Clones with higher expression levels were transferred from a 96-well plate to a 24-well plate, and after the cells were grown to a certain amount, the cells were transferred to a 6-well plate so that 2 ⁇ 10 5 cells were contained in 3 mL culture medium per well, and the antibody yield and yield of the cells were measured. 20-30 clones were transferred to shake flasks for further evaluation.
  • the final 5-8 clones with the highest expression were subcloned and further tested for expression.
  • the culture fluid was harvested, the cells were separated from the culture medium by low-speed centrifugation, and the supernatant of the centrifugation was further clarified by high-speed centrifugation. Affinity purification with protein A and ion exchange purification were performed.

Abstract

L'invention concerne des formulations liquides comprenant des anticorps humanisés à concentrations élevées pour le traitement d'une maladie liée à l'IL-6. Dans certains modes de réalisation, la formulation liquide comprend 120 à 300 mg/mL de l'anticorps, de 5 à 30 mM d'un tampon de sel d'histidine ou 5 à 30 mM d'un tampon d'acétate de sodium, de 0,1 à 1,0 mg/mL de tensioactif, de 70 à 200 mM de stabilisant et de l'eau pour une injection sans antioxydant. La formulation d'anticorps assure une bonne stabilité d'anticorps, une viscosité acceptable pour une injection sous-cutanée, empêche l'agrégation et la dégradation de l'anticorps monoclonal, et une augmentation d'isomère acide. La préparation peut être utilisée pour stabiliser la structure et la fonction de l'anticorps humanisé.
PCT/CN2021/113241 2020-08-19 2021-08-18 Formulations liquides comprenant des anticorps humanisés à concentrations élevées pour le traitement de maladies liées à il-6 WO2022037606A1 (fr)

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