WO2020173431A2 - 包含抗cd47抗体的制剂及其制备方法和用途 - Google Patents
包含抗cd47抗体的制剂及其制备方法和用途 Download PDFInfo
- Publication number
- WO2020173431A2 WO2020173431A2 PCT/CN2020/076611 CN2020076611W WO2020173431A2 WO 2020173431 A2 WO2020173431 A2 WO 2020173431A2 CN 2020076611 W CN2020076611 W CN 2020076611W WO 2020173431 A2 WO2020173431 A2 WO 2020173431A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antibody
- preparation
- liquid
- antibody preparation
- cancer
- Prior art date
Links
Classifications
-
- 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
- A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
-
- 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
- A61K47/22—Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
-
- 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
- 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
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- 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
- C07K16/2803—Immunoglobulins [IGs], 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/46—Hybrid immunoglobulins
-
- 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
- A61K2039/54—Medicinal preparations containing antigens or antibodies characterised by the route of administration
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/20—Immunoglobulins specific features characterized by taxonomic origin
- C07K2317/21—Immunoglobulins specific features characterized by taxonomic origin from primates, e.g. man
-
- 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
- C07K2317/565—Complementarity determining region [CDR]
-
- 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
- C07K2317/94—Stability, e.g. half-life, pH, temperature or enzyme-resistance
Definitions
- the present invention relates to the field of antibody preparations. More specifically, the present invention relates to a pharmaceutical preparation containing a recombinant fully human anti-cluster of differentiation 47 (CD47) monoclonal antibody, especially a stable high-concentration antibody liquid preparation, and a method for preparing the pharmaceutical preparation, and The therapeutic and/or preventive use of the pharmaceutical preparation.
- a pharmaceutical preparation containing a recombinant fully human anti-cluster of differentiation 47 (CD47) monoclonal antibody, especially a stable high-concentration antibody liquid preparation, and a method for preparing the pharmaceutical preparation, and The therapeutic and/or preventive use of the pharmaceutical preparation.
- CD47 fully human anti-cluster of differentiation 47
- CD47 Cluster of differentiation 47
- IAP integrin-associated protein
- CD47 fully human anti-cluster of differentiation 47
- Monoclonal antibodies have a high degree of specificity for I barb, and are generally more effective than small molecule drugs.
- Monoclonal antibody-based drugs has its own challenges.
- Monoclonal antibodies are more complex than traditional organic and inorganic drugs, and generally have a degradation pattern similar to other protein-based biopharmaceuticals.
- the degradation of antibody proteins can be divided into two main types: physical instability (involving changes in the high-level structure of proteins;) and chemical instability (involving various chemical modifications of proteins).
- Chemical instability can be caused by deamidation, racemization, hydrolysis, oxidation, P-elimination or disulfide bond exchange, among which the most common are fragmentation, deamidation and oxidation.
- Physical instability can be caused by denaturation, aggregation, precipitation or adsorption.
- the degradation of monoclonal antibodies can occur at various stages, including the preparation, storage, and delivery of antibody preparations.
- the biological activity of drugs based on monoclonal antibodies is closely related to their structure, conformation and chemical stability. Therefore, the development of antibody preparations is an important aspect of antibody product development and is often a key step for successful clinical production.
- the stability of antibody drugs is an important indicator to ensure the effectiveness and safety of drugs. Obtaining a prescription that gives antibody drugs good stability is a key condition for drugs to maintain their effectiveness and safety during the shelf life. Therefore, the antibody preparation must be formulated in a way that not only makes the antibody suitable for administration to a subject, but also in a way that maintains its stability during storage and subsequent use. If the antibody is not properly formulated in the liquid, the antibody in the liquid solution tends to decompose, aggregate, or undergo undesirable chemical modification.
- monoclonal antibodies are being developed at increased doses for the treatment of various indications.
- cetuximab is administered at a dose of 250-400 mg/m 2
- efalizumab is administered at a dose of approximately 1 mg/kg.
- high-concentration stable monoclonal antibody liquid preparations is a direction in the art, in which the protein concentration needs to reach 100 mg/ml or higher.
- the formulation form satisfies a wide range of dosage levels (typically, depending on the target indication, the amount of monoclonal antibody can be 0.1-20 mg/kg) and in multiple routes of administration (typically subcutaneous and Intravenous) flexibility of administration.
- the inventors of the present application have designed two formulations: pre-prescription and prescription screening.
- pre-prescription and prescription screening In the phase test, the effects of different pH, surfactants, stabilizers and antioxidants on the stability of anti-CD47 antibody preparations were investigated.
- the present inventors have provided pharmaceutical preparations containing recombinant fully human anti-cluster of differentiation 47 (CD47) monoclonal antibodies, especially stable high-concentration antibody liquid preparations.
- the present invention provides a liquid antibody preparation comprising (i) a recombinant fully human anti-CD47 monoclonal antibody (hereinafter also referred to as "anti-CD47 antibody”); (ii) a buffer, (iii) a stabilizer , And (iv) surfactants.
- the anti-CD47 antibody is a recombinant fully human anti-cluster of differentiation 47 (CD47) monoclonal antibody disclosed in Chinese application CN201710759828.9 (submitted on August 29, 2017). For the purpose of this application, the entire content of the Chinese application is hereby incorporated by reference.
- the anti-CD47 antibody comprises a heavy chain variable region and a light chain variable region, wherein the heavy chain variable region comprises the sequence of SEQ ID NO: 1 or a sequence having at least 90% identity thereto, and the light chain The variable region comprises the sequence of SEQ ID NO: 2 or a sequence that is at least 90% identical to it:
- the anti-CD47 antibody comprises:
- -ARGKTGSAA SEQIDNO: 5
- GKTGSAA SEQIDNO: 12
- the anti-CD47 antibody is an IgG4 antibody comprising a heavy chain and a light chain, wherein the heavy chain comprises the sequence of SEQ ID NO: 9 or a sequence that is at least 90% identical to it, and wherein the The light chain comprises the sequence of SEQ ID NO: 10 or a sequence that is at least 90% identical to it:
- the anti-CD47 antibody is the anti-CD47 monoclonal antibody ADI-26630 disclosed in Chinese application CN201710759828.9 (filed on August 29, 2017), which consists of the heavy chain sequence of SEQ ID NO: 9 and SEQ ID NO: 10 light chain sequence composition.
- the antibody showed significant anti-tumor activity.
- the antibody can inhibit tumor growth. The rate reaches about 100% or higher; and the rate of tumor disappearance can reach more than 60%.
- the concentration of the anti-CD47 antibody in the liquid antibody preparation is about 1-150 mg/mL, for example, 20 mg/ml or more, especially 50 mg/ml or more, preferably 100 mg/ml or 120 mg/ml.
- the concentration of the anti-CD47 antibody in the liquid antibody preparation may be about 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 75, 80, 85 mg/ml, or more than 90 mg/mL , For example, 90, 95, 100, 105, 110, or 120mg/ml.
- the liquid antibody preparation of the present invention has a pH of 5.0-6.0, such as pH 5.2 ⁇ 0.2, pH 5.5 ⁇ 0.2, pH 5.7 ⁇ 0.2, preferably pH 5.5.
- the liquid antibody formulation of the present invention contains about 5-100 mM buffer. In one embodiment, the concentration of the buffer in the liquid antibody preparation of the present invention is about 10 mM, 20 mM, 30 mM, 40 mM, or 50 mM. In one embodiment, the buffer is a histidine buffer. In a preferred embodiment, the liquid antibody preparation of the present invention contains about 10-20 mM, especially 10 mM histidine buffer. In still another embodiment, the histidine buffer is composed of histidine-histidine hydrochloride buffer system. In still another preferred embodiment, the liquid antibody preparation of the present invention contains 0.4 mg/ml histidine and 1.5 mg/ml histidine hydrochloride.
- the liquid antibody formulation of the present invention contains a stabilizer, preferably the stabilizer is selected from sorbitol, sucrose, trehalose, arginine and combinations thereof, more preferably sorbitol or sorbitol and arginine The combination.
- the liquid formulation of the present invention contains sorbitol as a stabilizer, preferably the concentration of sorbitol is about 1-10% w/v, for example, 1.5%, 2%, 2.5%, 3%, 3.5% , 4%, 4.5%, 5%, 5.5% or 6% w/v, or about 10-60mg/ml, for example about 15mg/ml, 20mg/ml, 25mg/ml, 30mg/ml, 35mg/ml, 40mg / ml, 45mg / ml, an amount of 50mg / ml, 55mg / ml is present, preferably from about 40mg / ml o in still another preferred embodiment, the liquid antibody formulations of the present invention comprises a combination of a stabilizer sorbitol and arginine.
- the amount of sorbitol is about 10-30 mg/ml, especially 15 mg/ml, and the amount of arginine is 80-1 10 mM, especially about 100 mM.
- the liquid antibody formulation of the present invention contains a stabilizer combination of about 15 mg/ml sorbitol and about 21.1 mg/ml arginine hydrochloride.
- the liquid antibody preparation of the present invention contains a surfactant, and preferably, the surfactant is a non-ionic surfactant.
- the surfactant is selected from polysorbate surfactants, preferably polysorbate-20.
- the liquid antibody preparation of the present invention contains about 0.1-1 mg/ml, for example, 0.1-0.5 mg/ml polysorbate-20.
- the liquid antibody preparation of the present invention contains about 0.1 to 0.4 mg/ml of polysorbate-20.
- the amount of polysorbate-20 in the liquid antibody preparation of the present invention is about 0.3 mg/ml.
- the liquid formulation of the present invention further contains an antioxidant. In yet another embodiment, the liquid formulation of the present invention does not contain antioxidants. In one embodiment, the antioxidant is edetic acid (EDTA) or a salt thereof, such as EDTA-2Na. In one embodiment, the liquid preparation is a stable liquid pharmaceutical preparation, preferably an injection. In one embodiment, the pharmaceutical formulation of the present invention is used for subcutaneous, intradermal, intramuscular, or intravenous injection. In a preferred embodiment, the liquid antibody preparation of the present invention comprises:
- the pH of the liquid formulation is about 5.0-6.0, preferably pH 5.5 ⁇ 0.2 c
- liquid antibody preparation of the present invention comprises
- the pH of the liquid formulation is about 5.0-6.0, preferably pH 5.5 ⁇ 0.2 c
- liquid antibody preparation of the present invention comprises:
- the present invention provides a solid antibody preparation, which is obtained by subjecting the liquid antibody preparation of the present invention to a curing treatment.
- the curing treatment is performed by, for example, a crystallization method, a spray drying method, or a freeze drying method.
- the solid antibody preparation is, for example, a lyophilized preparation, for example, in the form of a lyophilized powder injection.
- the solid antibody preparation can be reconstituted in a suitable solvent before use to form the reconstituted preparation of the present invention.
- the reconstituted preparation is also a liquid antibody preparation of the present invention.
- the appropriate solvent is selected from water for injection and organic solvent for injection, including but not limited to oil for injection, ethanol, propylene glycol, etc., or a combination thereof.
- the liquid formulation of the present invention can be stored stably for a long time, especially at a high concentration (for example, 50 mg/ml or more, preferably 90-150 mg/ml, such as 100 mg/ml or 120 mg/ml) for stable storage, such as at least 24 months or longer .
- the liquid formulation of the present invention can be heated at about -80°C to about 45°C, such as -80°C, about -30°C, about -20°C, about 0°C, about 5°C.
- C about 25°C, about 35°C, about 38°C, about 40°C, about 42°C, or about 45°C, storage for at least 10 days, at least 20 days, at least 1 month, at least 2 months, at least 3 months, at least 4 months, at least 5 months, at least 6 months, at least 7 months, at least 8 months, at least 9 months, at least 10 months, at least 11 months, It is stable for at least 12 months, at least 18 months, at least 24 months, at least 36 months, or longer.
- the liquid formulation of the present invention can be stored stably for at least 24 months. In yet another embodiment, the liquid formulation of the invention is stable at at least 40°C. In yet another embodiment, the liquid formulation of the present invention is stable at about 2°C-8°C for at least 12 months, preferably at least 24 months. In one embodiment, the liquid formulation of the invention remains stable at room temperature or, for example, about 25°C for at least 3 months, preferably at least 6 months. In yet another embodiment, the liquid formulation of the invention remains stable at about 40°C for at least one month. In yet another embodiment, the liquid formulation of the present invention can be stable at a temperature of about 5°C to 40°C, such as at a temperature of 25°C, for at least 1 day, such as 3 days or 5 days, under shaking.
- the stability of the preparation after storage can be indicated by detecting changes in the appearance, visible foreign matter, protein content, purity, and/or charge variants of the preparation. In one embodiment, it can be in a high-temperature accelerated test, for example, after storing at least 1 week, 2 weeks or preferably 1 month at 40°C ⁇ 2°C, or storing at least 1 at 25°C ⁇ 2°C After one month or two months, the stability of the liquid preparation of the present invention was tested. In one embodiment, the oscillation stability of the liquid formulation of the present invention is tested by an oscillation test.
- the stability of the liquid formulation of the present invention is visually inspected, wherein the liquid formulation of the present invention remains a clear, colorless or slightly yellow liquid in appearance, free of foreign matter, flocculent, and precipitation. In one embodiment, by visual inspection under natural light, no visible foreign matter is present in the preparation. In one embodiment, after storage, the stability of the liquid formulation of the present invention is checked by measuring the change in protein content, wherein, for example, by ultraviolet spectrophotometry (UV) method, the protein content change rate is relative to the initial value on day 0 of storage Not more than 20%, preferably not more than 10%, such as 7-8%, preferably not more than 5%.
- UV ultraviolet spectrophotometry
- the stability of the liquid preparation of the invention is checked by measuring the change in turbidity of the liquid preparation of the invention, for example, by the OD350mm method.
- the change value is not the same as the initial value on the 0th day of storage. It exceeds 0.04, more preferably does not exceed 0.03, and more preferably does not exceed 0.02.
- the stability of the liquid preparation of the present invention is checked by measuring the change in purity of the liquid preparation of the present invention, wherein size exclusion high performance liquid chromatography (SEC-HPLC) is used to check the stability of the liquid preparation of the present invention.
- SEC-HPLC size exclusion high performance liquid chromatography
- the change value of the purity of the main peak does not exceed 10%, for example, does not exceed 5%, 4%, 3%, such as 1-2%, preferably does not exceed 1%, and preferably, the increase in the aggregate does not exceed 2 %, preferably not more than 1%, 0.5% or 0.1%.
- the stability of the liquid preparation of the invention is checked by measuring the purity change of the liquid preparation of the invention, wherein the main peak is determined by the non-reducing sodium dodecyl sulfate capillary electrophoresis (CE-SDS) method.
- CE-SDS non-reducing sodium dodecyl sulfate capillary electrophoresis
- the change in purity does not decrease by more than 10%, for example, not more than 5%, 4%, 3%, preferably not more than 2%, 1%, 0.5% or 0.1%.
- iCIEF imaging capillary isoelectric focusing electrophoresis
- the change value of the charge variant (main component, acidic component or basic component) of the antibody relative to the initial value on the 0th day of storage does not exceed 30%, preferably does not exceed 20%, or not more than 10%, such as not more than 5%, 4%, 3%, or 2%, for example, in one embodiment, the change value of the main component or the acidic component is not more than 20%, and it is alkaline The change value of the composition does not exceed 3%.
- after the formulation is stored for example, after storage at 2-8°C for at least 24 months, or after storage at room temperature for at least 3 months, or after storage at 40°C ⁇ 2°C for 1 month, It is stable and preferably has one or more of the following characteristics:
- the percentage of antibody monomer in the preparation is greater than 90%, preferably greater than 95%, and preferably the aggregate increase does not exceed 2%;
- the preparation has a purity of greater than 90%, preferably greater than 95%, measured by non-reduced CE-SDS;
- the formulation is stored after storage, for example, after storage at 2-8°C for at least 24 months, or after storage at room temperature for at least 3 months, or after storage at 40°C ⁇ 2°C for 1 month , Is stable, and preferably has one or more of the following characteristics:
- the turbidity change value does not exceed 0.04, preferably does not exceed 0.02;
- the present invention provides a delivery device comprising the liquid antibody preparation or solid antibody preparation of the present invention.
- the delivery device of the present invention is provided in the form of a pre-filled syringe containing the liquid antibody preparation or solid antibody preparation of the present invention, for example, for intravenous, subcutaneous, intradermal or intramuscular injection.
- the present invention provides a method for delivering anti-CD47 antibodies to a subject, such as a mammal, comprising the step of administering the liquid antibody preparation or solid antibody preparation of the present invention to the subject, and the delivery is, for example, by using Pre-filled syringe delivery device implementation.
- the present invention provides the use of the liquid antibody preparation or solid antibody preparation of the present invention to prepare a delivery device (eg, a pre-filled syringe) or a drug for treating CD47-related diseases in a subject, especially
- a delivery device eg, a pre-filled syringe
- a drug for treating CD47-related diseases in a subject especially
- CD47-related cancers such as various blood tumors, such as lymphoma, such as Burkitt’s lymphoma.
- Figure 1 shows that in the pH screening test described in the examples, antibody preparations of different pH (pH 5.0, 5.5, 6.0 and 6.5) were stored at a temperature of 40°C ⁇ 2°C for 0 days and 1 week , 2 weeks and 1 month later, the preparation turbidity measured by OD350nm method over time.
- Figure 2 shows that in the pH screening test described in the examples, antibody preparations of different pH (pH 5.0, 5.5, 6.0 and 6.5) were stored at a temperature of 40°C ⁇ 2°C for 0 days and 1 week , 2 weeks and 1 month later, the main peak purity of the preparation measured by SEC-HPLC method over time.
- Figure 3 shows the purity profile of the antibody preparation determined by the SEC-HPLC method after storing the antibody preparation with pH 6.5 at 40°C ⁇ 2°C for 1 month in the pH screening test described in the embodiment.
- Figure 4 shows that in the stabilizer screening test described in the examples, antibody preparations (prescriptions 1-4) with different stabilizers were stored at 40°C ⁇ 2°C for 0 days, 1 week, 2 weeks, and After 1 month, the main peak purity measured by SEC-HPLC method changes with time.
- Figure 5 shows that in the stabilizer screening test described in the examples, antibody preparations with different stabilizers (prescriptions 1-4) were stored at 40°C ⁇ 2°C for 0 days, 1 week, 2 weeks, and After 1 month, the main peak purity measured by the non-reducing CE-SDS method over time.
- Figure 6 shows that in the stabilizer screening test described in the examples, antibody preparations with different stabilizers (prescriptions 1-4) were stored at 40°C ⁇ 2°C for 0 days, 1 week, 2 weeks, and After 1 month, the main component of the charge variant measured by the iCIEF method changes over time.
- Figure 7 shows that in the stabilizer screening test described in the examples, antibody formulations (prescriptions 1-4) with different stabilizers were stored at 40°C ⁇ 2°C for 0 days, 1 week, 2 weeks, and After 1 month, the change graph of the acidic component of the charge variant measured by the iCIEF method over time.
- Figure 8 shows that in the antioxidant screening test described in the examples, the antibody preparations with or without EDTA (prescriptions A and B) are stored at 40°C ⁇ 2°C for 0 days, 1 week, 2 weeks, And 1 month later, the turbidity measured by the OD350nm method over time.
- Figure 9 shows that in the antioxidant screening test described in the examples, the antibody preparations with or without EDTA (prescriptions A and B) are stored at 40°C ⁇ 2°C for 0 days, 1 week, 2 weeks, And 1 month later, the charge variants (principal component, acidic component, and alkaline component) measured by iCIEF method over time.
- the charge variants principal component, acidic component, and alkaline component
- the term “comprising” or “including” means to include the stated elements, integers or steps, but does not exclude any other elements, integers or steps.
- the term “comprises” or “includes” is used, unless otherwise specified, it also covers the situation consisting of the mentioned elements, integers or steps.
- an antibody variable region that "comprises” a specific sequence it is also intended to encompass the antibody variable region composed of the specific sequence.
- antibody refers to a polypeptide comprising light chain and heavy chain immunoglobulin variable regions, which specifically recognize and bind to an antigen.
- the antibody of the present invention is a full-length antibody, consisting of two heavy chains and two light chains, wherein each heavy chain is composed of a heavy chain variable region (abbreviated as VH herein) and a heavy chain constant region, each Light chain can be The variable region (abbreviated as VL herein) and the light chain constant region are composed.
- the antibody of the present invention can also refer to an antigen-binding fragment of an antibody.
- antibody preparation refers to a preparation that is in a form that allows the biological activity of the antibody as an active ingredient to be effectively exerted, and does not contain unacceptable toxicity to the subject to which the preparation is administered. Other components. Such antibody preparations are usually sterile.
- pharmaceutically acceptable excipients are included in antibody preparations.
- a "pharmaceutically acceptable" excipient is an agent that can be reasonably administered to the mammal under test so that an effective dose of the active ingredient used in the formulation can be delivered to the subject.
- the concentration of the excipient is adapted to the mode of administration, for example, it may be acceptable for injection.
- anti-CD47 antibody preparation also referred to herein simply as “the antibody preparation of the present invention” means a preparation containing an anti-CD47 antibody as an active ingredient and a pharmaceutically acceptable excipient. After the combination, the anti-CD47 antibody as the active ingredient is suitable for therapeutic or preventive administration to humans or non-human animals.
- the antibody preparation of the present invention can be prepared, for example, as an aqueous liquid preparation, for example, a ready-to-use pre-filled syringe, or prepared as a lyophilized preparation, which is carried out by dissolving and/or suspending in a physiologically acceptable solution immediately before use Reconstitution (ie, reconstitution).
- the anti-CD47 antibody formulation is in the form of a liquid formulation.
- a “stable” antibody preparation means that the antibody in the preparation retains an acceptable degree of physical and/or chemical stability after storage under specific conditions. Although the antibody contained in the antibody preparation may not maintain 100% of its chemical structure after storage for a specific time, it usually maintains about 90%, about 95%, about 96%, about 97%, about 98% after storage for a specific time. Or about 99% of the structure or function of the antibody, the antibody preparation is considered “stable.” In some specific embodiments, the anti-CD47 antibody preparation of the present invention exhibits low to undetectable antibody aggregation or degradation or chemical modification during the manufacturing, preparation, transportation, and long-term storage, so that there is little or no antibody. The biological activity of the CD47 antibody is lost, showing high stability.
- the anti-CD47 antibody preparation of the present invention substantially retains its physical and chemical stability after storage.
- the liquid formulation of the present invention can be stable at room temperature or at 40°C for at least 1 month, and/or at 2-8°C for at least 24 months.
- the stability can be measured at a selected temperature and selected storage time. For example, the storage time can be selected based on the expected shelf life of the formulation. Or an accelerated stability test can be used. In some embodiments, stability testing is performed by performing various stress tests on antibody preparations.
- the formulated anti-CD47 antibody preparation can be filled into a 5 mL glass bottle for shaking stress to detect the shaking/shear stability of the antibody; or the formulated anti-CD47 antibody preparation can be filled into a glass vial for testing Antibody stability under high temperature stress. After a period of storage, the preparation does not show aggregation, precipitation, turbidity and/or denaturation; or shows very little aggregation, precipitation, turbidity and/or denaturation, it can be considered that the antibody "maintains its physical stability" in the preparation.
- the accumulation of antibodies in the preparation can potentially lead to an increased immune response in the patient, leading to safety issues. Therefore, there is a need to minimize or prevent aggregation of antibodies in the formulation.
- Light scattering methods can be used to determine visible aggregates in the formulation.
- SEC can be used to determine soluble aggregates in preparations.
- the stability of the preparation can be indicated by visually inspecting the appearance, color, and/or clarity of the preparation, or detecting the turbidity of the preparation by the OD350nm method, or measuring the purity of the preparation by the non-reducing CE-SDS method. In one embodiment, the stability of the formulation is measured by determining the percentage of antibody monomers in the formulation after storage at a specific temperature for a specific time, wherein the higher the percentage of antibody monomers in the formulation, the higher the stability of the formulation .
- an "acceptable degree" of physical stability can mean that at least about 92% of the anti-CD47 antibody monomer is detected in the preparation after storage at a specific temperature for a specific time.
- an acceptable degree of physical stability means at least about 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% of the anti-CD47 antibody body.
- the specific temperature at which the pharmaceutical preparation is stored can be any temperature from about -80°C to about 45°C, for example, when stored at about -80°C, about -30°C, or about -20°C , About 0°C, about 4°C-8°C, about 5°C, about 25°C, about 35°C, about 37°C, about 40°C, about 42°C, or about 45°C.
- about 40°C ⁇ 2°C for 1 month at least about 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% of anti-CD47 antibody monomers are detected.
- the pharmaceutical preparation is considered stable.
- the pharmaceutical preparations are considered To be stable. If after 9 months of storage at about 5°C, at least about 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% of anti-CD47 antibody monomers are detected, the pharmaceutical preparations will be considered To be stable. After a period of storage, if the antibody in the preparation does not show a significant chemical change, it can be considered that the antibody "maintains its chemical stability" in the preparation. Most chemical instabilities result from the formation of covalently modified forms of antibodies (for example, charge variants of antibodies).
- the stability of the formulation is measured by determining the percentage change in the charge variant of the antibody in the formulation after storage at a specific temperature for a specific time, wherein the smaller the change, the higher the stability of the formulation.
- the "acceptable degree" of chemical stability can mean that the percentage change of the charge variant (such as the main component or acidic component or alkaline component) in the preparation after storage at a specific temperature for a specific time does not exceed 30%, such as 20% .
- the storage temperature of the pharmaceutical preparation can be any temperature from about -80°C to about 45°C, for example, when stored at about -80°C, about -30°C, about -20°C, About 0°C, about 4°C-8°C, about 5°C, about 25°C, or about 45°C.
- the pharmaceutical preparation can be considered stable.
- the pharmaceutical preparation can also be regarded as stable.
- the pharmaceutical preparation can also be considered stable.
- the term "lyophilized preparation” refers to a composition obtained or obtainable by freeze-drying a liquid preparation. Preferably, it is a solid composition having a water content of less than 5%, preferably less than 3%.
- reconstituted preparation refers to a liquid preparation obtained by dissolving and/or suspending a solid preparation (such as a lyophilized preparation) in a physiologically acceptable solution.
- room temperature refers to a temperature of 15°C to 30°C, preferably 20°C to 27°C, and more preferably 25°C.
- Stress conditions refer to environments that are chemically and/or physically unfavorable to the antibody protein, which can lead to unacceptable instability of the antibody protein.
- High temperature stress refers to storing the antibody preparation at room temperature or even higher temperature (for example, 40°C ⁇ 2°C) for a period of time. Through the accelerated test of high temperature stress, the stability of the antibody preparation can be checked.
- parenteral administration means a mode of administration other than enteral and local administration, usually by injection Or infusion methods, and include, but are not limited to, intravenous, intramuscular, intraarterial, intrathecal, intracapsular, intraorbital, intracardiac, intradermal, intraperitoneal, transtracheal, subcutaneous, subcuticular, and joint Internal, subcapsular, subarachnoid, intraspinal, epidural and intrasternal injections and infusions.
- the stable anti-CD47 antibody formulations of the invention are administered to the subject parenterally.
- the anti-CD47 antibody formulation of the present invention is administered to a subject by subcutaneous, intradermal, intramuscular or intravenous injection.
- the present invention provides a stable liquid antibody preparation comprising (i) a recombinant fully human anti-CD47 monoclonal antibody; (ii) a buffer, (iii) a stabilizer, and (iv) a surfactant, the pH of the antibody preparation It is about 5.0-6.0.
- the liquid antibody preparation of the present invention is in the form of an injection preparation.
- an "anti-CD47 antibody” refers to an antibody that can bind to a CD47 molecule with sufficient affinity so that the antibody can be used as a therapeutic and/or preventive agent that targets the CD47 molecule.
- the antibody of the present invention is a recombinant fully human antibody.
- the terms "fully human antibody” or “human antibody” are used interchangeably herein, and refer to that the antibody includes variable regions in which both the framework and CDR regions are derived from human germline immunoglobulin sequences, and if the antibody Contains constant regions, which are also derived from human germline immunoglobulin sequences.
- the human antibody of the present invention may include amino acids that are not encoded by human germline immunoglobulin sequences (for example, mutations introduced by random or point-specific mutagenesis in vitro or somatic mutations in vivo).
- human antibody is not intended to include antibodies in which CDR sequences are derived from germlines of other mammalian species (eg, mice) and transplanted into human framework sequences.
- recombinant human antibody includes all human antibodies that are prepared, expressed, produced or isolated by recombinant means. These recombinant human antibodies have framework regions and CDR regions derived from variable regions of human germline immunoglobulin sequences.
- the recombinant human antibody can be subjected to in vitro mutagenesis (or in vivo somatic mutagenesis when a human Ig sequence transgenic animal is used), and the amino acid sequences of the VH and VL regions of the recombinant antibody thus obtained are Although derived from and related to human germline VH and VL sequences, they do not naturally exist in the human antibody germline repertoire in vivo.
- the anti-CD47 antibody capable of high affinity, for example, 10- 7 M or less, preferably in 10_ 9 M to 10_ 1Q M K D of specificity It binds to human CD47, and thereby mediates a highly effective blocking effect on the binding of CD47 and its ligands.
- the antibody CD47 antibody of the present invention comprises: SEQ ID NO: 1 or a heavy chain variable region (VH) having at least 90% identity; and SEQ ID NO: 2 or at least 90% Identical light chain variable region (VL).
- a "variable region” or “variable domain” is a domain in the heavy or light chain of an antibody that participates in the binding of the antibody to its antigen.
- the heavy chain variable region (VH) and light chain variable region (VL) can be further divided into hypervariable regions (HVR, also called complementarity determining regions (CDR)), with more conservative regions (ie , Framework area (FR)).
- HVR hypervariable regions
- FR Framework area
- Each VH and VL is composed of three CDRs and 4 FRs, arranged in the following order from the amino terminal to the carboxy terminal: FR1, CDR1, FR2, CDR2, FR3, CDR3, FR4.
- the anti-CD47 antibody of the present invention comprises the HCDR1 of the heavy chain variable region of SEQ ID NO: 1.
- CDR region or “CDR” (herein used interchangeably with hypervariable region “HVR”) are the amino acid regions in the variable region of an antibody that are mainly responsible for binding to an epitope.
- the CDRs of the heavy and light chains are usually called CDR1, CDR2, and CDR3, and are numbered sequentially from the N-terminus.
- the CDRs located in the variable domain of the antibody heavy chain are called HCDR1, HCDR2, and HCDR3, and the CDRs located in the variable domain of the antibody light chain are called LCDR1, LCDR2, and LCDR3.
- CDR complementarity determining region
- CDR Kabat complementarity determining region
- Chothia refers to the position of structural loops (Chothia and Lesk, J. Mol. Biol. 196:901-917 (1987)).
- AbM HVR It is a compromise between Kabat HVR and Chothia structural loops and is used by Oxford Molecular's AbM antibody modeling software. "Contact" HVR is based on the analysis of available complex crystal structures. HVR can also be determined based on having the same Kabat numbering position as a reference CDR sequence (such as an exemplary CDR disclosed herein).
- the CDR of the antibody of the present invention is bounded by the Kabat rule, as shown in Table A(1) below.
- the CDR of the antibody of the present invention determines the boundary by combining Kabat, AbM, Chothia, and empirical factors.
- HCDR1 is the sequence of positions H27-H35 in the kabat numbering system
- HCDR3 is the sequence of positions H93-H102 in the kabat numbering system
- HCDR2 and LCDR1, LCDR2 and LCDR3 are determined by Kabat rules .
- the CDR boundaries of the variable region of the same antibody obtained based on different assignment systems may be different. That is, the CDR sequences of the variable regions of the same antibody defined under different assignment systems are different. Therefore, when it comes to defining antibodies with specific CDR sequences defined in the present invention, the scope of the antibodies also covers antibodies whose variable region sequences include the specific CDR sequences, but due to the application of different schemes (for example, Different assignment system rules or combinations) cause the claimed CDR boundary to be different from the specific CDR boundary defined in the present invention.
- Antibodies with different specificities have different CDRs.
- the CDR is different from antibody to antibody, there are only a limited number of amino acid positions within the CDR that directly participate in antigen binding.
- the minimum overlap area can be determined, thereby providing the "minimum binding unit" for antigen binding.
- the minimum binding unit can be a sub-part of the CDR.
- the structure of the antibody and protein folding can determine the residues of the rest of the CDR sequence. Therefore, the present invention also considers any CDR variants given herein. For example, in a CDR variant, the amino acid residue of the smallest binding unit can remain unchanged, while the remaining CDR residues defined by Kabat or Chothia can be replaced by conservative amino acid residues.
- the anti-CD47 antibody of the present invention may comprise a heavy chain variable region (VH) having at least 90%, 95% or 98% or higher identity with SEQ ID NO: 1; and/or with SEQ ID NO: 1 ID NO: 2
- VH heavy chain variable region
- VL light chain variable region
- sequence identity refers to the degree of sequence identity on a nucleotide-by-nucleotide or amino acid-by-amino-acid basis in the comparison window.
- the “percentage of sequence identity” can be calculated in the following way: Compare the two optimally aligned sequences in the comparison window to determine the presence of the same nucleic acid base (for example, A, T, C, G, I) in the two sequences ) Or the same amino acid residue (for example, Ala, Pro, Ser, Thr, Gly, Val, Leu, lie, Phe, Tyr, Trp, Lys, Arg, His, Asp, Glu, Asn, Gin, Cys, and Met) to obtain the number of matching positions, divide the number of matching positions by the total number of positions in the comparison window (ie, window size), And multiply the result by 100 to produce the percent sequence identity.
- the same nucleic acid base for example, A, T, C, G, I
- the same amino acid residue for example, Ala, Pro, Ser, Thr, Gly, Val, Leu, lie, Phe, Tyr, Trp, Lys, Arg, His, Asp, Glu, Asn, Gin, Cys, and Met
- the optimal alignment for determining the percent sequence identity can be achieved in a variety of ways known in the art, for example, using publicly available computer software such as BLAST, BLAST-2, ALIGN or Megalign (DNASTAR) software. Those skilled in the art can determine the appropriate parameters for sequence alignment, including any algorithm required to achieve maximum alignment within the full-length sequence being compared or within the target sequence region.
- the VH sequence of the antibody of the present invention has no more than 10, preferably no more than 5, 4 or 3 different residues compared to SEQ ID NO:1, preferably the different residues are Conservative amino acid substitutions.
- the VL sequence of the antibody of the present invention has no more than 10, preferably no more than 5, 4, or 3 different residues compared to SEQ ID NO: 2, preferably the different residues are Conservative amino acid substitutions.
- Constant substitution refers to an amino acid change that results in the substitution of a certain amino acid with a chemically similar amino acid. It is well known in the art to provide conservative substitution tables of functionally similar amino acids.
- the conservatively substituted residues are derived from conservative substitution table X below, preferably the preferred substituted residues shown in Table X.
- the antibodies of the invention are antibodies in the form of IgG4.
- Antibody in the form of IgG refers to the form of IgG to which the constant region of the heavy chain of the antibody belongs.
- the heavy chain constant regions of all antibodies of the same type are the same, and the heavy chain constant regions of antibodies of different types are different.
- an antibody in the form of IgG4 means that the Ig domain of its heavy chain constant region is the Ig domain of IgG4.
- the anti-CD47 antibody of the present invention is the anti-CD47 monoclonal antibody ADI-26630 disclosed in Chinese application CN201710759828.9 (August 29, 2017), which has the heavy chain of SEQ ID NO: 9 and The light chain of SEQ ID NO: 10.
- the anti-CD47 antibody is recombinantly expressed in CHO cells and purified IgG4 type antibody.
- the antibody in the liquid formulation of the present invention exhibits significant anti-tumor activity.
- the antibody in a mouse tumor model transplanted with human Burkitt’s lymphoma cells, such as intraperitoneal injection of 5 mg/kg, once every two days for two weeks, the antibody can lead to a tumor growth inhibition rate of about 50% or higher , Such as 100%; and/or tumor disappearance rate reaches more than 60%.
- the amount of the antibody or antigen-binding fragment thereof contained in the antibody preparation of the present invention can be changed according to the specific purpose characteristics of the preparation, the specific environment, and the specific purpose of using the preparation.
- the antibody formulation is a liquid formulation, which may contain about 1-150 mg/mL, preferably about 10-100 mg/mL, for example, about 15, 20, 25, 30, 35, 40, 45 , 50, 55, 60 mg/mL anti-CD47 antibody.
- the present invention relates to a preparation having a high concentration of anti-CD47 antibody, for example, containing 50-150 mg/mL of anti-CD47 antibody. It is known in the art that such high-concentration antibody formulations can be diluted before injection, for example, if a lower antibody concentration is required for a specific therapeutic or prophylactic intervention or when treating patients of lower body weight including children. A suitable concentration can be 25 mg/mL or 10 mg/mL. Alternatively, the original formulation can be produced at such a low concentration.
- the buffer is an agent that can maintain the pH of the solution within an acceptable range.
- the buffering agent used in the preparation of the present invention can control the pH of the preparation of the present invention in the pH range of about 5.0-6.0, for example, about 5.2-5.8 pH, preferably 5.3-5.7.
- the antibody preparation of the present invention has a pH of about 5.0, 5.2, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9 or 6.0, preferably a pH of about 5.5.
- the buffer used in the present invention is a histidine buffer, such as a buffer system composed of histidine and histidine hydrochloride.
- the concentration of the buffer in the antibody preparation of the present invention is about 5-100 mM, preferably about 10-50 mM, for example, about 10-20 mM.
- the buffer is about 10-20 mM histidine buffer.
- Suitable stabilizers for use in the present invention may be selected from sugars, polyols and amino acids and combinations thereof.
- Sugars used as stabilizers include, but are not limited to, sucrose and trehalose.
- the polyol used as a stabilizer includes but is not limited to sorbitol.
- the amino acids used as stabilizers include but are not limited to arginine.
- the liquid formulation of the present invention contains sucrose as a stabilizer.
- the amount of sucrose in the liquid preparation of the present invention may be about 50-100 mg/ml, preferably 70-90 mg/ml, for example 80 mg/ml.
- the liquid formulation of the present invention contains trehalose as a stabilizer.
- the amount of trehalose in the liquid preparation of the present invention may be about 50-100 mg/ml, preferably 70-90 mg/ml, for example 80 mg/ml.
- the liquid formulation of the present invention contains arginine as a stabilizer.
- the amount of arginine in the liquid preparation of the present invention may be about 80-1 10mM, especially about 100mM, for example about 21.1 mg/ml arginine hydrochloride.
- the liquid formulation of the present invention contains sorbitol as a stabilizer.
- the amount of sorbitol in the liquid preparation of the present invention may be about 10-100 mg/ml, preferably 20-70 mg/ml, for example 30-60 mg/ml.
- sorbitol may be present in an amount of about 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65 or 70 mg/ml, preferably in an amount of about 40 mg/ml.
- the liquid formulation of the present invention contains a combination of sorbitol and arginine as a stabilizer.
- sorbitol may be present in an amount of about 5-60 mg/ml, preferably 10-30 mg/ml, such as 10-20 mg/ml, for example, 5, 10, 12, 15, 17, 20, 22, 25mg/ml.
- arginine may be present in an amount of about 80-1 10mM, especially about 100mM.
- the liquid preparation of the present invention contains about 10-20 mg/ml sorbitol and about 10-30 mg/ml arginine hydrochloride. More preferably, the liquid preparation of the present invention contains about 15 mg/ml sorbitol and about 21.1 mg/ml arginine hydrochloride.
- the term "surfactant” refers to an organic substance with an amphiphilic structure; that is, they are composed of groups with opposite solubility tendencies, usually oil-soluble chain and water-soluble ionic groups. group.
- the surfactant in the liquid formulation of the present invention is a nonionic surfactant, for example, alkyl poly(ethylene oxide).
- Specific nonionic surfactants that can be included in the formulation of the present invention include, for example, polysorbates, such as polysorbate-20, polysorbate-80, polysorbate-60, or polysorbate-40; Nick waits.
- the liquid formulation of the present invention contains polysorbate-20 as a surfactant.
- the amount of the surfactant contained in the antibody preparation of the present invention can be changed according to the specific purpose characteristics of the preparation, the specific environment, and the specific purpose of using the preparation.
- the formulation may contain about 0.01-5 mg/ml, preferably about 0.1-2 mg/ml, such as about 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0 mg /ml of polysorbate-20, preferably about 0.3 mg/ml of polysorbate-20.
- the antibody liquid preparation of the present invention may or may not contain other excipients.
- the antibody liquid formulation of the present invention contains EDTA or a salt thereof.
- the antibody liquid formulation of the present invention does not contain EDTA or its salt.
- the antibody liquid formulation of the present invention added with EDTA or its salt has considerable stability compared to the corresponding formulation without EDTA or its salt.
- excipients may also be used in the formulation of the present invention.
- the excipients include, for example, flavoring agents, antimicrobial agents, sweeteners, antistatic agents, antioxidants, bright stocks and the like.
- These and other known pharmaceutical excipients and/or additives suitable for the formulation of the present invention are well known in the art, for example, listed in "The Handbook of Pharmaceutical Excipients, 4th Edition, Rowe et al., eds., American Pharmaceuticals Association (2003); and Remington: the Science and Practice of Pharmacy, 21st edition, edited by Gennaro, Lippincott Williams & Wilkins (2005)''.
- the present invention provides stable formulations containing antibodies.
- the antibodies used in the formulations of the present invention can be prepared using techniques known in the art for antibody production. For example, antibodies can be produced recombinantly. In a preferred embodiment, the antibody of the invention is recombinantly produced in CHO cells.
- Example 4 Tugcu et al. (Maximizing productivity of chromatography steps for purification of monoclonal antibodies, Biotechnology and Bioengineering 99 (2008) 599-613.) describe the use of ion exchange chromatography (anion IEX and/or cation CEX chromatography) after the protein A capture step Monoclonal antibody three-column purification method. Kelley et al.
- recombinantly produced monoclonal antibodies can be purified by conventional purification methods to provide pharmaceutical substances with sufficient reproducibility and moderate purity for the preparation of antibody preparations.
- a commercially available protein concentration filter such as Amicon's ultrafiltration device can be used to concentrate the supernatant from the expression system.
- the antibody can be purified using methods such as chromatography, dialysis, and affinity purification.
- Protein A is suitable as an affinity ligand for the purification of IgGl, IgG2 and IgG4 type antibodies.
- Other antibody purification methods, such as ion exchange chromatography can also be used. After obtaining antibodies of sufficient purity, preparations containing antibodies can be prepared according to methods known in the art.
- the following steps can be used for preparation: (1) After fermentation, the fermentation broth is centrifuged to clarify and remove impurities such as cells to obtain the supernatant; (2) affinity chromatography (for example, specific for IgGl, IgG2 and IgG4 antibodies) Affinity protein A column) capture antibody; (3) virus inactivation; (4) purification and purification (usually CEX cation exchange chromatography can be used) to remove impurities in the protein; (4) virus filtration (to make the virus titer Reduce, for example, 4 logl0 or more); (5) Ultrafiltration/diafiltration (can be used to replace the protein in a preparation buffer that is conducive to its stability and concentrate to a suitable concentration for injection). See, for example, B. Minow, P. Rogge, K. Thompson, BioProcess International, Vol. 10, No. 6, 2012, pp. 48-57. III. Analytical method of preparation
- antibodies may undergo aggregation, degradation or chemical modification, resulting in antibody heterogeneity (including size heterogeneity and charge heterogeneity), aggregates and fragments, etc., thereby affecting the quality of antibody preparations. Therefore, it is necessary to monitor the stability of antibody preparations.
- Various methods are known in the art that can be used to test the stability of antibody preparations. For example, methods such as non-reduced CE-SDS and SEC-HPLC can be used to analyze the purity of antibody preparations and evaluate the aggregation level of antibodies; Capillary isoelectric focusing (cIEF), imaging capillary isoelectric focusing (iCIEF), and Ion exchange chromatography (IEX), etc., analyze charge variants in antibody preparations.
- cIEF Capillary isoelectric focusing
- iCIEF imaging capillary isoelectric focusing
- IEX Ion exchange chromatography
- the appearance of the preparation can be visually inspected to quickly determine the stability of the preparation.
- the OD350nm method can also be used to detect changes in the turbidity of the preparation, which can give information about the amount of soluble and insoluble aggregates.
- ultraviolet spectrophotometry UV method
- UV method can be used to detect changes in the protein content of the preparation.
- the non-reduced CE-SDS method is a method for measuring the purity of monoclonal antibodies using capillary as the separation channel.
- CE-SDS protein migration is driven by the surface charge caused by SDS binding, and the surface charge is proportional to the molecular weight of the protein. Since all SDS-protein complexes have similar mass-to-charge ratios, electrophoretic separation based on molecular size or hydrodynamic radius can be achieved in the molecular sieve gel matrix of the capillary. This method has been widely used to monitor the purity of denatured intact antibodies.
- the test sample is mixed with SDS sample buffer and iodoacetamide.
- the mixture can be incubated at 68-72°C for about 10-15 minutes, and the supernatant centrifuged after cooling to room temperature for analysis.
- a UV detector is used to detect the migration of the protein to obtain an electrophoresis spectrum.
- the purity of the antibody preparation can be calculated as the percentage of the peak area of the main IgG peak to the sum of all peak areas.
- Size exclusion high performance liquid chromatography is another important method for monoclonal antibody standards and quality control. This method is mainly based on the molecular size or hydrodynamic radius difference to separate molecules.
- SEC-HPLC antibodies can be separated into three main forms: high molecular weight form (HMMS), main peak (mainly antibody monomer), and low molecular weight form (LMMS).
- HMMS high molecular weight form
- LMMS low molecular weight form
- Antibody purity can be calculated as the percentage of the main peak area on the chromatogram of the sum of all peak areas.
- the SEC-HPLC method the percentage of antibody monomers in the preparation product can be measured, and the content information of soluble aggregates and shears can be given.
- Imaging capillary isoelectric focusing electrophoresis can be used to analyze the charge heterogeneity of monoclonal antibodies. This method can provide quantitative distribution of charge variants.
- iCIEF achieves molecular separation based on the charge difference (apparent pi value) of molecules in the pH gradient.
- the separation column is usually a short capillary (for example, a silica capillary with a length of 5 cm and an inner diameter of 100 pm).
- the protein is focused in the capillary column under high voltage, and the focusing is performed by a whole column imaging detection system operating at 280 nM. Real-time online monitoring.
- One advantage of this technology is that the whole-column detection system can simultaneously record various charge variants of antibody samples.
- the sample is mixed with urea and icIEF buffer, where the buffer contains methylcellulose, pi molecular weight standard and ampholytes c. Then, it can be used in an iCIEF analyzer such as iCE280 analyzer (Protein Simple, Santa Clara, CA), using an iCIEF column, such as an iCIEF column assembled by ProtionSimple, after the sample is focused for a certain period of time, the absorbance at 280 nm is measured to obtain a spectrum of the focused mAb charge variant.
- iCIEF analyzer such as iCE280 analyzer (Protein Simple, Santa Clara, CA)
- an iCIEF column such as an iCIEF column assembled by ProtionSimple
- the protein-related peaks eluted before the main peak are classified as acidic components; in contrast, the protein-related peaks eluted after the main peak are classified as basic components.
- the relative amounts of the main component, acidic component, and basic component can be expressed as a percentage of the total peak area.
- the charge variant of the antibody in the antibody preparation can also be determined by cation exchange high performance liquid chromatography (CEX-HPLC).
- CEX-HPLC cation exchange high performance liquid chromatography
- Accelerated stability studies can be used to check the stability properties of products, which is conducive to the screening of stable pharmaceutical formulations.
- the formulation sample can be placed at an elevated temperature, for example, about 40°C ⁇ 2°C ⁇ 25°C ⁇ 2°C for accelerated stability studies.
- Detection indicators can include appearance, visible foreign matter, protein content, turbidity, purity (SEC-HPLC method, non-reduced CE-SDS method) and charge variants (iCIEF method).
- a shaking test can be performed to examine the shaking/shear stability of the formulation.
- the preparation samples are dispensed into vials, stoppered and capped, then set out, and perform an oscillation test, such as shaking at 650 r/min for 3-5 days, and then check the appearance, protein content, and
- the efficacy or biological activity of the antibody can be tested.
- the ability of the antibody in the preparation to bind to its antigen can be tested.
- Those skilled in the art know that a variety of methods can be used to quantify the specific binding of an antibody to an antigen, such as immunoassay tests, ELISA, and the like.
- the anti-CD47 antibody preparation of the present invention is stable. In one embodiment, after storage at about 25°C, 37°C, 40°C, or 45°C for at least 1 month or 2 months, for example, after storage at 40°C ⁇ 2°C for 1 month
- the purity of the anti-CD47 antibody in the antibody preparation of the present invention is at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% or more. Resistance chromatography or by non-reduced CS-SDS.
- At least 50%, preferably at least 55% of the anti-CD47 antibody in the antibody preparation of the present invention is in a non-alkaline and non-acidic form (ie, a main peak or a main charge form), as determined by imaging capillary focus electrophoresis.
- the antibody preparation of the present invention comprising an anti-CD47 antibody of the present invention can be used to treat, ameliorate or prevent various CD47-related diseases or disorders.
- a "CD47-related disease or disorder” herein refers to a disease or disorder that can be treated (e.g., improved) or prevented with the anti-CD47 antibody of the present invention. Any disease or condition that can benefit from treatment with the antibody of the present invention is applicable to the present invention.
- CD47 is a pluripotent molecule that plays an important role in the process of tumor cells evading immune surveillance. Blocking the CD47 signaling pathway can effectively stimulate the phagocytosis of macrophages on tumor cells, which can be used for tumor immunotherapy. Therefore, the preparations of the present invention containing anti-CD47 antibodies are particularly useful for treating, improving or preventing CD47-related cancers.
- the cancer includes, for example, but not limited to: various hematological tumors and solid tumors, such as leukemia, including acute lymphoblastic leukemia, B-lymphocytic chronic leukemia and acute lymphocytic leukemia; non-Hodgkin's lymphoma; bone tumor; leiomyosarcoma ; Astrocytoma; Breast cancer; Ovarian cancer; Glioblastoma. See, for example, International Journal of Oncology, November 2013, Vol. 40, No. 11, pages 817-819.
- the antibody preparations of the present invention are used to treat, ameliorate, or prevent CD47-related lymphoma, such as Burkitt's lymphoma.
- the present invention also provides the use of the preparation of the present invention in the preparation of a medicament, wherein the medicament is used to deliver anti-CD47 antibodies to mammals, or to treat, prevent or ameliorate one or more of the aforementioned diseases and disorders.
- the mammal is a human.
- the antibody formulation of the present invention can be administered to a subject or patient in various ways.
- administration can be by infusion or by syringe.
- the present invention provides a delivery device (for example, a syringe), which includes the antibody preparation of the present invention (for example, a pre-filled syringe).
- the patient will receive an effective amount of anti-CD47 antibody as the main active ingredient, that is, an amount sufficient to treat, ameliorate or prevent the target disease or condition.
- the therapeutic effect may include reducing physical symptoms.
- the optimal effective amount and concentration of antibodies for any particular subject will depend on Due to a variety of factors, including the patient’s age, weight, health status and/or gender, the nature and extent of the disease, the activity of a specific antibody, the clearance rate of the specific antibody, and also any possible combinations administered with the antibody preparation Other treatments.
- the effective amount delivered can be determined within the judgment of the clinician.
- the effective dose may be about 0.005 mg/kg body weight to about 50 mg/kg body weight, or about 0.1 mg/kg body weight to about 20 mg/kg body weight.
- the application of known antibody-based drugs can provide certain guidance.
- the dosage can be a single dose schedule or a multiple dose schedule.
- pre-prescription and prescription screening are designed Two-stage test.
- the materials and methods used in the test are as follows: Materials and methods
- TSK-gel SuperSW mAb HR (7.8x300 mm, 4(j,m) type analytical column
- TSK-gel SuperSW (6.0x40 mm, 4(j,m) guard column)
- Sample tray temperature about 10°C
- CE-SDS Non-reducing sodium dodecyl sulfate capillary electrophoresis
- the non-reduced CE-SDS measurement can be performed as follows: Add approximately sample (protein content: 1mg/ml) into 14 ul non-reduced sample buffer (including 700 ul pH 6.5 sample buffer, add 31.3 ul 250mM NEM (N -Ethyl maleimide)), add 28 ul ultrapure water, mix well, and then incubate at 70°C for 10 minutes. After incubation, the samples were cooled to room temperature and then transferred to 96-well plates.
- CE-SDS separation was performed on LabChip GXIITouch (PerkinElmer), using a protein chip.
- the analysis method is HT Antibody Analysis 200, and the sample tray type is BioRad 96 HSP-96xx (Sip 4 mm). The protein migration is monitored by fluorescence.
- Imaging capillary isoelectric focusing electrophoresis (icIEF method)
- the icIEF test can be performed as follows: Dilute (or desalt) the antibody sample to approximately 1 mg/ml. Take 20 (J sample) and add 780 icIEF buffer, which contains urea, arginine (Protein Simple), pi marker standard (Protein Simple, Santa Clara, CA) and Pharmalytes (GE Healthcare Bio-Science, Pittsburgh, PA) ). On the Maurice C. Analyzer (Protein Simple, Santa Clara, CA), the FC-coated iCIEF column was used to generate the imaging capillary isoelectric focusing spectrum. The sample was focused for a total of 8 minutes, using Empower version 3 software (Waters, Milford) , MA), integrate the absorbance of the 280nm focused protein. Example 1. Preparation and purification of anti-CD47 antibodies
- the anti-CD47 antibody ADI-26630 was prepared and purified according to CN201710759828.9.
- the antibody consists of the heavy chain sequence of SEQ ID NO: 9 and the light chain sequence of SEQ ID NO: 10, and is an IgG4 type antibody.
- the antibody was recombinantly expressed in CHO cells and purified.
- the sample used for the pre-prescription test purified by CEX (Cation Exchange Chromatography), the sample has a protein content of 12.2mg/ml.
- CEX Cation Exchange Chromatography
- pass CEX cation exchange chromatography After purification to obtain a protein content of 15.7 mg/ml, it was concentrated to 100 mg/ml by diafiltration.
- Example 2 Pre-prescription test
- the determination standard that the quality of the sample detection index value has not changed compared with the initial value is set to determine whether the sample has changed. See Table 2 for details.
- N/ A means not tested or not applicable, the same below.
- Test items include appearance, protein content, turbidity and purity (SEC-HPLC method, non-reduced CE-SDS method). See Table 7 for the specific test plan.
- the formulation formulation was determined to be histidine-histidine hydrochloride buffer system, the pH was selected as 5.5, and the surfactant was Polysorbate 20. On this basis, the following prescription screening test was carried out.
- a total of 4 prescriptions were designed, and the detailed prescription information is shown in Table 9.
- the protein concentration of each prescription was diluted to about 120 mg/ml, and polysorbate 20 was added to make the final concentration 0.3 mg/ml.
- the detection indicators are appearance, visible foreign matter, protein content, turbidity, purity (SEC-HPLC method, non-reduced CE-SDS method) and charge variant (iCIEF method).
- Prescription 1 0.4 mg/ml histidine, 1.5 mg/ml histidine hydrochloride, 40 mg/ml sorbitol, 0.3 mg/ml polysorbate 20, pH 5.5 prescription 2 0.4 mg/ml histidine, 1.5 mg /ml histidine hydrochloride, 80 mg/ml sugar, 0.3 mg/ml polysorbate 20, pH 5.5 prescription 3 0.4 mg/ml histidine, 1.5 mg/ml histidine hydrochloride, 80 mg/ml seaweed Sugar, 0.3 mg/ml polysorbate 20, pH 5.5 prescription 4 0.4 mg/ml histidine, 1.5 mg/ml histidine hydrochloride, 21.1 mg/ml arginine hydrochloride, 0.3 mg/ml polysorbate vinegar 20, pH5.5 detailed test conditions and sampling plan are shown in Table 10.
- the judgment standard that the quality of the sample detection index value has not changed compared with the initial value is set to determine whether the sample has changed, see Table 11 for details.
- the sample was divided into two parts, one part was added with EDTA-2Na to make the final concentration 0.01 mg/ml; the other part was not added with EDTA-2Na.
- the protein concentration of each prescription is about 100 mg/ml.
- the detection indicators are appearance, visible foreign matter, protein content, turbidity, purity (SEC-HPLC method, non-reduced CE-SDS method) and charge variant (iCIEF method). Table 16. Prescription information for antioxidant screening test
- test index data shows that the two prescriptions have good stability and there is no difference between the prescriptions, that is, whether to add EDTA-2Na has little effect on product stability.
- prescription B was finally selected as the final prescription of the antibody preparation.
- the antibody protein is stable at pH 5.0 ⁇ 6.0; the surfactant polysorbate 20 can ensure that the product has good oscillation stability; among the stabilizers, sorbitol has a better effect and can more effectively inhibit the protein at 40
- the high temperature antioxidant test found that there is no need to add EDTA-2Na in the prescription; in addition, adding an appropriate amount of arginine can reduce the viscosity of high-concentration protein products.
- the preferred preparation scheme is: 100 mg/ml recombinant fully human anti-differentiation antigen cluster 47 (CD47) monoclonal antibody, 0.4 mg/ml histidine, 1.5 mg/ml histidine hydrochloride, 15.0 mg/ml ml sorbitol, 21.1 mg/ml arginine hydrochloride, 0.3 mg/ml polysorbate 20, pH 5.5.
- CD47 fully human anti-differentiation antigen cluster 47
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Immunology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Genetics & Genomics (AREA)
- Biophysics (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Dermatology (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Medicinal Preparation (AREA)
- Peptides Or Proteins (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/433,780 US20220143180A1 (en) | 2019-02-26 | 2020-02-25 | Formulation comprising anti-cd47 antibody, preparation method therefor and use thereof |
EP20763678.8A EP3932426A4 (en) | 2019-02-26 | 2020-02-25 | PREPARATIONS WITH ANTI-CD47 ANTIBODY, PROCESS FOR THEIR PRODUCTION AND THEIR USE |
AU2020227770A AU2020227770A1 (en) | 2019-02-26 | 2020-02-25 | Preparations containing anti-CD47 antibody, and preparation method and use therefor |
CN202080014878.4A CN113453719A (zh) | 2019-02-26 | 2020-02-25 | 包含抗cd47抗体的制剂及其制备方法和用途 |
JP2021549889A JP2022521624A (ja) | 2019-02-26 | 2020-02-25 | 抗cd47抗体を含む製剤、その調製方法および使用 |
KR1020217030704A KR20210134926A (ko) | 2019-02-26 | 2020-02-25 | 항-cd47 항체를 포함하는 제제, 이의 제조 방법 및 이의 용도 |
CA3131307A CA3131307A1 (en) | 2019-02-26 | 2020-02-25 | Formulation comprising anti-cd47 antibody, preparation method therefor and use thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910141894 | 2019-02-26 | ||
CN201910141894.9 | 2019-02-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2020173431A2 true WO2020173431A2 (zh) | 2020-09-03 |
WO2020173431A3 WO2020173431A3 (zh) | 2020-10-22 |
Family
ID=72239062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/076611 WO2020173431A2 (zh) | 2019-02-26 | 2020-02-25 | 包含抗cd47抗体的制剂及其制备方法和用途 |
Country Status (9)
Country | Link |
---|---|
US (1) | US20220143180A1 (zh) |
EP (1) | EP3932426A4 (zh) |
JP (1) | JP2022521624A (zh) |
KR (1) | KR20210134926A (zh) |
CN (1) | CN113453719A (zh) |
AU (1) | AU2020227770A1 (zh) |
CA (1) | CA3131307A1 (zh) |
TW (1) | TWI764097B (zh) |
WO (1) | WO2020173431A2 (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022121966A1 (en) * | 2020-12-10 | 2022-06-16 | Wuxi Biologics (Shanghai) Co., Ltd. | An antibody against p-cadherin and uses thereof |
WO2023039778A1 (zh) * | 2021-09-16 | 2023-03-23 | 上海美雅珂生物技术有限责任公司 | 抗体药物偶联物制剂及其用途 |
WO2023056971A1 (en) * | 2021-10-09 | 2023-04-13 | Hutchmed Limited | Anti-cd47 antibody formulation |
JP2023520597A (ja) * | 2020-04-06 | 2023-05-17 | ザ ボード オブ トラスティーズ オブ ザ レランド スタンフォード ジュニア ユニバーシティー | 抗体製剤 |
EP4094777A4 (en) * | 2020-01-21 | 2024-01-24 | Innovent Biologics (Suzhou) Co., Ltd. | RECOMBINANT FULLY HUMAN MONOCLONAL ANTI-TIGITE ANTIBODIES, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117257935A (zh) * | 2022-06-21 | 2023-12-22 | 广东菲鹏制药股份有限公司 | 一种含抗cd47抗体或其抗原结合片段的制剂及其制备方法和应用 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007008895A (ja) * | 2005-07-04 | 2007-01-18 | Chugai Pharmaceut Co Ltd | 抗cd47抗体とインテグリンリガンドとの併用 |
PL3789038T3 (pl) * | 2010-05-14 | 2023-01-23 | The Board Of Trustees Of The Leland Stanford Junior University | Humanizowane i chimeryczne przeciwciała monoklonalne wobec cd47 |
US9216219B2 (en) * | 2012-06-12 | 2015-12-22 | Novartis Ag | Anti-BAFFR antibody formulation |
US9221908B2 (en) * | 2012-12-12 | 2015-12-29 | Vasculox, Inc. | Therapeutic CD47 antibodies |
CN108290948B (zh) * | 2015-09-21 | 2021-10-29 | 伊拉兹马斯大学医疗中心 | 抗-cd47抗体及使用方法 |
CN106084052B (zh) * | 2016-06-17 | 2019-12-27 | 长春金赛药业股份有限公司 | 抗cd47单克隆抗体及其应用 |
CN106117354B (zh) * | 2016-06-24 | 2020-01-14 | 安徽未名细胞治疗有限公司 | 一种全人源抗CD47的全分子IgG抗体及其应用 |
WO2018075960A1 (en) * | 2016-10-21 | 2018-04-26 | Tioma Therapeutics, Inc. | Therapeutic cd47 antibodies |
-
2020
- 2020-02-25 KR KR1020217030704A patent/KR20210134926A/ko unknown
- 2020-02-25 JP JP2021549889A patent/JP2022521624A/ja active Pending
- 2020-02-25 EP EP20763678.8A patent/EP3932426A4/en not_active Withdrawn
- 2020-02-25 CA CA3131307A patent/CA3131307A1/en not_active Abandoned
- 2020-02-25 US US17/433,780 patent/US20220143180A1/en active Pending
- 2020-02-25 TW TW109106041A patent/TWI764097B/zh not_active IP Right Cessation
- 2020-02-25 WO PCT/CN2020/076611 patent/WO2020173431A2/zh unknown
- 2020-02-25 AU AU2020227770A patent/AU2020227770A1/en not_active Abandoned
- 2020-02-25 CN CN202080014878.4A patent/CN113453719A/zh active Pending
Non-Patent Citations (19)
Title |
---|
"Remington: the Science and Practice of Pharmacy", 2005, LIPPINCOTT WILLIAMS & WILKINS |
"The Handbook of Pharmaceutical Excipients", 2003, AMERICAN PHARMACEUTICALS ASSOCIATION |
ALEXANDRE GOYON ET AL.: "Protocols for the analytical characterization of thermal monoclonal antibodies, I-Non-denaturing chromatographic techniques", JOURNAL OF CHROMATOGRAPHY, Retrieved from the Internet <URL:http://dx.doi.org/10.1016/j.jchromb.2017.05.010> |
B. MINOWP. ROGGEK. THOMPSON, BIOPROCESS INTERNATIONAL, vol. 10, no. 6, 2012, pages 48 - 57 |
BORWANKAR A UDEAR B JTWU A ET AL.: "Viscosity reduction of a concentrated monoclonal antibody with arginineHCl and arginineglutamate[J", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 55, no. 43, 2016, pages 11225 - 11234 |
CHOTHIALESK, J. MOL. BIOL., vol. 196, 1987, pages 901 - 917 |
DADA 00 ET AL.: "Characterization of acidic and basic variants of IgG1 therapeutic monoclonal antibodies based on non-denaturing IEF fractionation", ELECTROPHORESIS, vol. 36, no. 21-22, 18 September 2015 (2015-09-18), pages 2695 - 2702 |
J. PHARM. BIO. ANAL., vol. 14, 1986, pages 1133 - 1140 |
J. PHARM. BIO. ANAL., vol. 15, 1997, pages 1928 |
J. PHARM. SCIEN., vol. 83, 1994, pages 1645 - 1650 |
JONES, A, ADV. DRUG DELIVERY REV., vol. 10, 1993, pages 29 - 90 |
JOURNAL OF INTERNATIONAL ONCOLOGY, vol. 40, no. 11, November 2013 (2013-11-01), pages 817 - 819 |
KABAT ET AL.: "Sequences of Proteins of Immunological Interest", 1991, PUBLIC HEALTH SERVICE, NATIONAL INSTITUTES OF HEALTH, pages: 247 - 301 |
KELLEY ET AL.: "Weak partitioning chromatography for anion exchange purification of monoclonal antibodies", BIOTECHNOLOGY AND BIOENGINEERING, vol. 101, 2008, pages 553 - 566, XP002545519, DOI: 10.1002/it.21923 |
NATIONAL PHARMACOPOEIA COMMITTEE: "Pharmacopoeia of the People's Republic of China", vol. IV, 2015, CHINA MEDICAL SCIENCE PRESS, article "Test for Visible Particles" |
PHARM. RES., vol. 11, 1994, pages 485 |
R. YANG ET AL.: "High resolution separation of recombinant monoclonal antibodies by size exclusion ultra-high performance liquid chromatography (SE-UHPLC", JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS, 2015, Retrieved from the Internet <URL:http://dx.doi.org/10.1016/i,ipba.2Q15.02.032> |
RICHARD R ET AL.: "Application of CE SDS gel in development of biopharmaceutical antibody-based products", ELECTROPHORESIS, vol. 29, 2008, pages 3612 - 3620 |
SALAS-SOLANO O ET AL.: "Robustness of iCIEF methodology for the analysis of monoclonal antibodies: an interlaboratory study", J SEP SCI, vol. 35, no. 22, 15 October 2012 (2012-10-15), pages 3124 - 9 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4094777A4 (en) * | 2020-01-21 | 2024-01-24 | Innovent Biologics (Suzhou) Co., Ltd. | RECOMBINANT FULLY HUMAN MONOCLONAL ANTI-TIGITE ANTIBODIES, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF |
JP2023520597A (ja) * | 2020-04-06 | 2023-05-17 | ザ ボード オブ トラスティーズ オブ ザ レランド スタンフォード ジュニア ユニバーシティー | 抗体製剤 |
JP7560038B2 (ja) | 2020-04-06 | 2024-10-02 | ザ ボード オブ トラスティーズ オブ ザ レランド スタンフォード ジュニア ユニバーシティー | 抗体製剤 |
WO2022121966A1 (en) * | 2020-12-10 | 2022-06-16 | Wuxi Biologics (Shanghai) Co., Ltd. | An antibody against p-cadherin and uses thereof |
WO2023039778A1 (zh) * | 2021-09-16 | 2023-03-23 | 上海美雅珂生物技术有限责任公司 | 抗体药物偶联物制剂及其用途 |
WO2023056971A1 (en) * | 2021-10-09 | 2023-04-13 | Hutchmed Limited | Anti-cd47 antibody formulation |
Also Published As
Publication number | Publication date |
---|---|
KR20210134926A (ko) | 2021-11-11 |
TWI764097B (zh) | 2022-05-11 |
CN113453719A (zh) | 2021-09-28 |
AU2020227770A1 (en) | 2021-09-23 |
TW202045136A (zh) | 2020-12-16 |
EP3932426A4 (en) | 2022-12-14 |
JP2022521624A (ja) | 2022-04-11 |
CA3131307A1 (en) | 2020-09-03 |
US20220143180A1 (en) | 2022-05-12 |
WO2020173431A3 (zh) | 2020-10-22 |
EP3932426A2 (en) | 2022-01-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI764097B (zh) | 包含抗cd47抗體的製劑及其製備方法和用途 | |
JP5631591B2 (ja) | 安定な抗体製剤 | |
TWI761869B (zh) | 包含抗cd47/pd-l1雙特異性抗體的製劑及其製備方法和用途 | |
CN114146174B (zh) | 抗pd-l1/ox40双特异性抗体制剂及其制备方法和用途 | |
TWI782397B (zh) | 重組全人源抗tigit單株抗體製劑及其製備方法和用途 | |
JP2023535433A (ja) | Pd-l1/lag-3二重特異性抗体製剤およびその調製方法ならびに使用 | |
WO2022111612A1 (zh) | 包含抗tigit/pd-1双特异性抗体的制剂及其制备方法和用途 | |
US20230173069A1 (en) | Formulation comprising anti-il-23p19 antibody, method for preparing same and use thereof | |
CN114007648B (zh) | 包含抗lag-3抗体的制剂、其制备方法及其用途 | |
CN114206382B (zh) | 包含抗pd-1/her2双特异性抗体的制剂及其制备方法和用途 | |
CN112675300A (zh) | 包含抗gitr抗体的制剂及其制备方法和用途 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20763678 Country of ref document: EP Kind code of ref document: A2 |
|
ENP | Entry into the national phase |
Ref document number: 3131307 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2021549889 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2020227770 Country of ref document: AU Date of ref document: 20200225 Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20217030704 Country of ref document: KR Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2020763678 Country of ref document: EP Effective date: 20210927 |