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1. WO2014079000 - BISPECIFIC ANTIBODY

Publication Number WO/2014/079000
Publication Date 30.05.2014
International Application No. PCT/CN2012/084982
International Filing Date 21.11.2012
IPC
C07K 16/30 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
30from tumour cells
C07K 16/32 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
32against translation products from oncogenes
C07K 16/46 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
46Hybrid immunoglobulins
A61K 39/395 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
39Medicinal preparations containing antigens or antibodies
395Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum
A61K 39/44 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
39Medicinal preparations containing antigens or antibodies
395Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum
44Antibodies bound to carriers
A61P 35/00 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
35Antineoplastic agents
CPC
A61P 31/04
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
31Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
04Antibacterial agents
A61P 35/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
35Antineoplastic agents
C07K 16/2809
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
2803against the immunoglobulin superfamily
2809against the T-cell receptor (TcR)-CD3 complex
C07K 16/32
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
32against translation products of oncogenes
C07K 16/468
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
46Hybrid immunoglobulins
468Immunoglobulins having two or more different antigen binding sites, e.g. multifunctional antibodies
C07K 2317/21
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
2317Immunoglobulins specific features
20characterized by taxonomic origin
21from primates, e.g. man
Applicants
  • WUHAN YZY BIOPHARMA CO., LTD. [CN]/[CN]
Inventors
  • ZHOU, Pengfei
  • ZHANG, Jing
  • YAN, Yongxiang
Agents
  • SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) BISPECIFIC ANTIBODY
(FR) ANTICORPS BISPÉCIFIQUES
Abstract
(EN) Provided are bispecific antibodies comprised of a single-chain unit having specificity to an immune cell and a monovalent unit having specificity to a tumor cell or a microorganism. The single-chain unit includes a single-chain variable fragment (scFv) fused to an Fc fragment and the monovalent unit includes a light chain and heavy chain pair. Also provided are methods of preparing bispecific antibodies and pharmaceutical and diagnostic uses of these antibodies.
(FR) La présente invention concerne des anticorps bispécifiques comprenant un motif à chaîne unique ayant une spécificité envers une cellule immunitaire et un motif monovalent ayant une spécificité envers une cellule tumorale ou un microorganisme. Le motif à chaîne unique comprend un fragment d'anticorps variable à chaîne unique (scFv, pour single chain variable fragment) fusionné au fragment Fc et le motif monovalent comprend une chaîne légère et une chaîne lourde. L'invention concerne également des procédés de préparation des anticorps bispécifiques et les utilisations pharmaceutiques et diagnostiques de ces anticorps.
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