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AR129399A1 - DESIGNED ANTIBODIES NEUTRALIZING HEPATITIS B VIRUS AND THEIR USES - Google Patents

DESIGNED ANTIBODIES NEUTRALIZING HEPATITIS B VIRUS AND THEIR USES

Info

Publication number
AR129399A1
AR129399A1 ARP230101278A ARP230101278A AR129399A1 AR 129399 A1 AR129399 A1 AR 129399A1 AR P230101278 A ARP230101278 A AR P230101278A AR P230101278 A ARP230101278 A AR P230101278A AR 129399 A1 AR129399 A1 AR 129399A1
Authority
AR
Argentina
Prior art keywords
antigen
antibody
cells
modc
mutations
Prior art date
Application number
ARP230101278A
Other languages
Spanish (es)
Inventor
Davide Corti
Nadine Czudnochowski
Michael Alexander Schmid
Gyorgy Snell
Original Assignee
Vir Biotechnology Inc
Humabs Biomed Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vir Biotechnology Inc, Humabs Biomed Sa filed Critical Vir Biotechnology Inc
Publication of AR129399A1 publication Critical patent/AR129399A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/08Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from viruses
    • C07K16/081Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from viruses from DNA viruses
    • C07K16/082Hepadnaviridae, e.g. hepatitis B virus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00Medicinal preparations containing antigens or antibodies
    • A61K39/12Viral antigens
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00Medicinal preparations containing antigens or antibodies
    • A61K39/395Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K40/00Cellular immunotherapy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • A61P31/20Antivirals for DNA viruses
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/40Immunoglobulins specific features characterized by post-translational modification
    • C07K2317/41Glycosylation, sialylation, or fucosylation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/50Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/52Constant or Fc region; Isotype
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/50Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/56Immunoglobulins specific features characterized by immunoglobulin fragments variable (Fv) region, i.e. VH and/or VL
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/70Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
    • C07K2317/72Increased effector function due to an Fc-modification
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/90Immunoglobulins specific features characterized by (pharmaco)kinetic aspects or by stability of the immunoglobulin
    • C07K2317/94Stability, e.g. half-life, pH, temperature or enzyme-resistance
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2730/00Reverse transcribing DNA viruses
    • C12N2730/00011Details
    • C12N2730/10011Hepadnaviridae
    • C12N2730/10111Orthohepadnavirus, e.g. hepatitis B virus
    • C12N2730/10134Use of virus or viral component as vaccine, e.g. live-attenuated or inactivated virus, VLP, viral protein

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Virology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Organic Chemistry (AREA)
  • Immunology (AREA)
  • Epidemiology (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Molecular Biology (AREA)
  • Communicable Diseases (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Peptides Or Proteins (AREA)
  • Oncology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

La presente divulgación se refiere, en parte, a anticuerpos y fragmentos de unión a antígeno de los mismos, que pueden unirse a la región de bucle antigénico del antígeno de superficie de la hepatitis B (HBsAg) y, opcionalmente, pueden neutralizar la infección por el virus de la hepatitis B (HBV), y además opcionalmente, el virus de la hepatitis delta (HDV). Los anticuerpos y fragmentos de unión a antígeno descritos en el presente documento tienen características de producción ventajosas, tales como formación reducida de agregados y/o título de producción mejorado en células huéspedes transformadas, en comparación con un anticuerpo de referencia o fragmento de unión a antígeno. Los anticuerpos y fragmentos de unión a antígeno divulgados en el presente documento incluyen polipéptidos diseñados genéticamente (por ejemplo, polipéptidos Fc, fragmentos de polipéptidos Fc, proteínas de fusión Fc) que comprenden una variante de un polipéptido Fc de IgG (o una porción o un fragmento de la misma), cuyas variantes (y los polipéptidos que comprenden estas variantes) tienen una o más características mejoradas sobre los polipéptidos Fc conocidos. Reivindicación 49: El anticuerpo de cualquiera de las reivindicaciones 1 - 48, donde el anticuerpo es capaz de cualesquiera uno o más de los siguientes: (i) aumentar la lisis específica (p. ej. mediante ADCC) por células citolíticas naturales y/o PBMCs (p. ej. que expresan F158 / V158 o V158 / V158 FcgRIIIA) contra células diana que expresan antígeno, en comparación con el anticuerpo que comprende un polipéptido de referencia Fc que no comprende las mutaciones y/o el estado de fucosilación (p. ej. el anticuerpo que comprende un Fc de IgG humana que comprende las mutaciones G236A, A330L, y I332E); (ii) aumentar ADCP por monocitos (p. ej. monocitos CD14⁺, opcionalmente que expresan F158 / V158 FcgRIIA y R131 / H131 FcgRIIA o F158 / F158 FcgRIIA y R131 / H131 FcgRIIA) contra células diana que expresan antígeno, en comparación con el anticuerpo que comprende un polipéptido de referencia Fc que no comprende las mutaciones y/o el estado de fucosilación; (iii) aumentar el porcentaje de células CD83⁺ (p. ej. moDC) y/o aumentar la expresión de CD83 por moDC en una muestra cuando se proporciona en combinación con el antígeno, en comparación con el anticuerpo que comprende un polipéptido de referencia Fc que no comprende las mutaciones y/o el estado de fucosilación, cuando se proporciona en combinación con el antígeno; (iv) aumentar la producción de una o más citoquinas (opcionalmente seleccionadas del grupo que consiste en IL-1b, IFN-g, IL-6, y TNF-a) por moDC en una muestra cuando se proporciona en combinación con el antígeno, en comparación con el anticuerpo que comprende un polipéptido de referencia Fc que no comprende las mutaciones y/o el estado de fucosilación, cuando se proporciona en combinación con el antígeno; y (v) aumentar la capacidad de moDC para estimular células T CD4⁺ específicas de antígeno cuando se proporciona a las moDc en combinación con el antígeno, en comparación con el anticuerpo que comprende un polipéptido de referencia Fc que no comprende las mutaciones y/o el estado de fucosilación, cuando se proporciona a las moDc en combinación con el antígeno, donde, opcionalmente, (1) las moDC y las células T CD4⁺ son del mismo sujeto (opcionalmente, vacunado con antígeno) y/o (2) la estimulación de células T CD4⁺ específicas de antígeno se determina por un aumento en la expresión de CD25 y/o un aumento en la proliferación (p. ej. determinado por una reducción en la tinción de CFSE en función del tiempo) y/o un aumento en la expresión de CD69 y/o un aumento en la expresión de NFAT y/o un aumento en la expresión de CD44, por las células T CD4⁺ específicas de antígeno. Reivindicación 104: El método de la reivindicación 103, donde la composición farmacéutica comprende: (i) el anticuerpo en 150 mg/mL; (ii) agua USP; (iii) 20 mM histidina; (iv) 7% sacarosa; y (v) 0,02% PS80, donde la composición farmacéutica comprende un pH de 6.The present disclosure relates, in part, to antibodies and antigen-binding fragments thereof, which are capable of binding to the antigenic loop region of hepatitis B surface antigen (HBsAg) and, optionally, are capable of neutralizing infection by hepatitis B virus (HBV), and optionally further, hepatitis delta virus (HDV). The antibodies and antigen-binding fragments described herein have advantageous production characteristics, such as reduced aggregate formation and/or improved production titer in transformed host cells, as compared to a reference antibody or antigen-binding fragment. The antibodies and antigen-binding fragments disclosed herein include genetically engineered polypeptides (e.g., Fc polypeptides, Fc polypeptide fragments, Fc fusion proteins) comprising a variant of an IgG Fc polypeptide (or a portion or fragment thereof), which variants (and the polypeptides comprising these variants) have one or more improved characteristics over known Fc polypeptides. Claim 49: The antibody of any one of claims 1 - 48, wherein the antibody is capable of any one or more of the following: (i) increasing specific lysis (e.g. by ADCC) by natural killer cells and/or PBMCs (e.g. expressing F158/V158 or V158/V158 FcgRIIIA) against antigen-expressing target cells, as compared to the antibody comprising a reference Fc polypeptide that does not comprise the mutations and/or fucosylation state (e.g. the antibody comprising a human IgG Fc comprising the G236A, A330L, and I332E mutations); (ii) increasing ADCP by monocytes (e.g. CD14+ monocytes, optionally expressing F158/V158 FcgRIIA and R131/H131 FcgRIIA or F158/F158 FcgRIIA and R131/H131 FcgRIIA) against antigen-expressing target cells, as compared to the antibody comprising an Fc reference polypeptide that does not comprise the mutations and/or fucosylation status; (iii) increasing the percentage of CD83+ cells (e.g. moDC) and/or increasing CD83 expression by moDC in a sample when provided in combination with the antigen, as compared to the antibody comprising an Fc reference polypeptide that does not comprise the mutations and/or fucosylation status, when provided in combination with the antigen; (iv) increasing the production of one or more cytokines (optionally selected from the group consisting of IL-1b, IFN-g, IL-6, and TNF-a) by moDC in a sample when provided in combination with the antigen, as compared to the antibody comprising a reference Fc polypeptide that does not comprise the mutations and/or fucosylation status, when provided in combination with the antigen; and (v) increasing the ability of moDC to stimulate antigen-specific CD4⁺ T cells when provided to the moDC in combination with the antigen, as compared to the antibody comprising an Fc reference polypeptide that does not comprise the mutations and/or fucosylation state, when provided to the moDC in combination with the antigen, wherein, optionally, (1) the moDC and the CD4⁺ T cells are from the same subject (optionally, vaccinated with antigen) and/or (2) the stimulation of antigen-specific CD4⁺ T cells is determined by an increase in CD25 expression and/or an increase in proliferation (e.g., determined by a reduction in CFSE staining as a function of time) and/or an increase in CD69 expression and/or an increase in NFAT expression and/or an increase in CD44 expression, by the antigen-specific CD4⁺ T cells. Claim 104: The method of claim 103, wherein the pharmaceutical composition comprises: (i) the antibody at 150 mg/mL; (ii) USP water; (iii) 20 mM histidine; (iv) 7% sucrose; and (v) 0.02% PS80, wherein the pharmaceutical composition comprises a pH of 6.

ARP230101278A 2022-05-23 2023-05-22 DESIGNED ANTIBODIES NEUTRALIZING HEPATITIS B VIRUS AND THEIR USES AR129399A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US202263344909P 2022-05-23 2022-05-23

Publications (1)

Publication Number Publication Date
AR129399A1 true AR129399A1 (en) 2024-08-21

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ID=86851640

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP230101278A AR129399A1 (en) 2022-05-23 2023-05-22 DESIGNED ANTIBODIES NEUTRALIZING HEPATITIS B VIRUS AND THEIR USES

Country Status (3)

Country Link
AR (1) AR129399A1 (en)
TW (1) TW202411246A (en)
WO (1) WO2023230439A1 (en)

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WO2023230439A1 (en) 2023-11-30
TW202411246A (en) 2024-03-16

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