Bio-Thera Solutions, Ltd., Co.

China

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C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants 18
A61P 35/00 - Antineoplastic agents 12
C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells 6
A61K 39/00 - Medicinal preparations containing antigens or antibodies 5
A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates 5
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Found results for  patents

1.

USE OF ANTI-PD-L1/CD47 BISPECIFIC ANTIBODY IN TREATMENT OF DISEASES

      
Application Number 18681485
Status Pending
Filing Date 2022-08-05
First Publication Date 2025-02-13
Owner BIO-THERA SOLUTIONS, LTD. (China)
Inventor
  • Chen, Yifan
  • Fu, Ziyi
  • Liang, Qiulian
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

The present invention discloses use of an anti-PD-L1/CD47 bispecific antibody in the treatment of a disease. A treatment method comprises administering to a patient in need thereof an effective amount of an anti-PD-L1/CD47 bispecific antibody or an antigen-binding fragment.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • A61P 35/00 - Antineoplastic agents

2.

ANTI-B7-H3 ANTIBODY AND APPLICATION THEREOF

      
Application Number 18697291
Status Pending
Filing Date 2022-09-29
First Publication Date 2024-12-05
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Su, Huafei
  • Zhong, Yuting
  • Liang, Jinchan
  • Liang, Shide
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

Disclosed is an anti-B7-H3 antibody and application of an anti-B7-H3 antibody. The anti-B7-H3 antibody or an antigen-binding fragment can specifically bind to B7-H3. The anti-B7-H3 antibody or an antigen-binding fragment has high affinity and strong internalization capability, and can be used for the diagnosis and/or treatment of tumors (including cancers and benign tumors).

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

3.

DRUG CONJUGATE AND USE THEREOF

      
Application Number 18566371
Status Pending
Filing Date 2022-06-01
First Publication Date 2024-08-15
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Tang, Weijia
  • Zhou, Xin
  • Mei, Xingxing
  • Yan, Hui
  • Li, Shuoxu
  • Fan, Jianjun
  • Qi, Xuekang
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

A drug conjugate, such as an antibody drug conjugate, and the use thereof, belonging to the field of biomedicine. In some embodiments, the drug conjugate is a compound of Formula I or a pharmaceutically acceptable salt or a solvate thereof, and can be used for treating cancers, autoimmune diseases, inflammatory diseases or infectious diseases.

IPC Classes  ?

  • A61K 47/68 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • A61P 35/00 - Antineoplastic agents

4.

ANTIBODY AND FUSION PROTEIN FOR TREATING CORONAVIRUSES AND USE THEREOF

      
Application Number 17915892
Status Pending
Filing Date 2021-03-30
First Publication Date 2024-07-11
Owner BIO-THERA SOLUTIONS, LTD. (China)
Inventor
  • Zhang, Hui
  • Wang, Zhiwei
  • Chen, Junyou
  • Chen, Zhengcheng
  • Li, Chuang
  • Yan, Qingwei
  • Zheng, Dandan
  • Yang, Shaowei
  • Li, Jiaping
  • Qin, Chao
  • Huang, Xianming
  • Li, Shengfeng
  • Huang, Haohui
  • Su, Ziqi

Abstract

The present invention provides an antibody and a fusion protein for treating coronaviruses and use thereof. The 6-HB interference polypeptide in the fusion protein of the present invention and a part of an antibody or an antigen-binding fragment work synergistically to prevent fusion of SARS-COV or SARS-COV-2 virus particles with cells, and mediate phagocytosis and clearance of the virus particles by immune cells.

IPC Classes  ?

  • C07K 16/10 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from viruses from RNA viruses
  • A61K 38/00 - Medicinal preparations containing peptides
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • A61P 31/14 - Antivirals for RNA viruses
  • C07K 14/00 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof

5.

ANTI-IL-5 ANTIBODY FORMULATION, PREPARATION METHOD THEREFOR AND USE THEREOF

      
Application Number 18275747
Status Pending
Filing Date 2022-01-30
First Publication Date 2024-04-11
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Yang, Yili
  • Jiang, Xuemin
  • Liu, Cuihua

Abstract

Provided is an anti-IL-5 antibody formulation including an anti-IL-5 antibody, a His buffer, a stabilizer and TWEEN® 80 and having a pH value of 5.70-6.38. The anti-IL-5 antibody formulation of the present invention exhibits better stability than the control under conditions of high temperatures, freezing-thawing, and light, and is more suitable for clinical use.

IPC Classes  ?

  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61K 47/18 - AminesAmidesUreasQuaternary ammonium compoundsAmino acidsOligopeptides having up to five amino acids
  • A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
  • C07K 16/24 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against cytokines, lymphokines or interferons

6.

ANTI-CLDN18.2 ANTIBODY, AND PREPARATION METHOD THEREFOR AND USE THEREOF

      
Application Number 18270428
Status Pending
Filing Date 2021-12-29
First Publication Date 2024-03-21
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Qin, Chao
  • Xiao, Cuizhen
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

The present invention relates to the field of bio-pharmaceuticals and provides an anti-CLDN18.2 antibody. Related preparation methods and related uses are described. The antibody of the present invention or related an antigen-binding fragment can specifically bind to CLDN18.2 with a strong binding capacity. After humanization, the antibody or the antigen-binding fragment has a strong ADCC effect and CDC activity and has good pharmaceutical prospects.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61P 35/00 - Antineoplastic agents

7.

BISPECIFIC ANTIBODY AND USE THEREOF

      
Application Number 18035591
Status Pending
Filing Date 2021-11-05
First Publication Date 2024-02-29
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Chen, Yifan
  • Liang, Qiulian
  • Pei, Shujun
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

The present invention provides a bispecific antibody and use thereof, and the bispecific antibody or an antigen-binding fragment of the present invention can bind to two or more antigens or two or more epitopes of a same antigen. The antibody or the antigen-binding fragment of the present invention can be used to treat a variety of diseases, such as inflammatory diseases, autoimmune diseases, cancers or spinal cord injury, and can also be used for diagnosis and prognosis of related diseases.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

8.

STABLE ANTIBODY FORMULATION, PREPARATION METHOD THEREFOR, AND APPLICATIONS THEREOF

      
Application Number 18268746
Status Pending
Filing Date 2021-12-21
First Publication Date 2024-02-15
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Yang, Yili
  • Luo, Xiaoping
  • Li, Qingrui
  • Kou, Zixuan
  • Wu, Yong
  • Liu, Cuihua

Abstract

Related to the field of bioformulations, disclosed is a stable antibody formulation, including an anti-IL-17 antibody, a buffer, a stabilizer, and a surfactant. The stabilizer is methionine or a combination of methionine and a sugar alcohol. The pH value of the antibody formulation is 5.4-6.6. The antibody formulation has improved stability at high temperature and room temperature, can be kept in a liquid form, and is convenient to use.

IPC Classes  ?

  • C07K 16/24 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against cytokines, lymphokines or interferons
  • A61K 47/20 - Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing sulfur, e.g. dimethyl sulfoxide [DMSO], docusate, sodium lauryl sulfate or aminosulfonic acids
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
  • A61K 47/12 - Carboxylic acidsSalts or anhydrides thereof

9.

USE OF ANTI-PD-1 ANTIBODY IN COMBINATION THERAPY

      
Application Number 18030886
Status Pending
Filing Date 2021-10-09
First Publication Date 2024-01-04
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Yue, Haitao
  • Pei, Shujun
  • Su, Ziqi
  • Tang, Weijia
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

Disclosed are anti-PD-1 antibodies and use of an anti-PD-1 antibody in a combination therapy. Treatment methods are disclosed and include administering to a patient in need an effective amount of an anti-PD-1 antibody and a therapeutic agent. Methods for treating a tumor or cancer using anti-PD-1 antibody and a therapeutic agent are disclosed.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61P 35/00 - Antineoplastic agents
  • C07K 16/32 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against translation products from oncogenes

10.

USE OF ANTI-OX40 ANTIBODY IN TREATMENT OF TUMOR OR CANCER

      
Application Number 18037401
Status Pending
Filing Date 2021-11-18
First Publication Date 2023-12-28
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Liang, Shizhong
  • Liang, Binghui
  • Yu, Jin-Chen
  • Li, Xiao
  • Song, Shuqiang
  • Li, Shengfeng

Abstract

The use of an anti-OX40 antibody or an antigen-binding fragment in the treatment of a tumor or cancer, is described. Also described is a treatment method of a tumor or cancer and includes administering to a patient in need an effective amount of an anti-OX40 antibody or an antigen-binding fragment. Kits including an anti-OX40 antibody or an antigen-binding fragment are also described.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61P 35/00 - Antineoplastic agents

11.

ANTI-CD47 ANTIBODY AND USE THEREOF

      
Application Number 18018804
Status Pending
Filing Date 2021-07-30
First Publication Date 2023-09-28
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Liu, Xianqin
  • Shen, Jingyi
  • Tang, Weijia
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

CD47 antibodies and use thereof are disclosed, particularly to monoclonal antibodies that recognize CD47, and more particularly to CD47 antibodies that do not cause significant levels of hemagglutination, red blood cell reduction and platelet reduction, and to a method for preparing these antibodies and use of these monoclonal antibodies in the manufacture of medicaments for treating cancer or infection.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • C12N 15/63 - Introduction of foreign genetic material using vectorsVectorsUse of hosts thereforRegulation of expression
  • A61P 35/00 - Antineoplastic agents

12.

ANTI-PD-L1 ANTIBODY AND USE THEREOF

      
Application Number 18019918
Status Pending
Filing Date 2021-08-06
First Publication Date 2023-09-14
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Chen, Yifan
  • Liang, Qiulian
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

Disclosed are anti-PD-L1 antibodies and use of anti-PD-1 antibodies. The antibody or the antigen-binding fragment can specifically bind to PD-L1 and block the interaction between PD-1 and PD-L1. The antibody or the antigen-binding fragment can help the immune system to clear tumor cells, and can also be used for the diagnosis and prognosis of a tumor or a cancer.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61P 35/00 - Antineoplastic agents
  • A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system

13.

ANTI-HER2 ANTIBODY AND USE THEREOF

      
Application Number 18007262
Status Pending
Filing Date 2021-07-27
First Publication Date 2023-09-07
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Mei, Xingxing
  • Tang, Weijia
  • Yu, Jin-Chen
  • Feng, Cuiying
  • Liu, Yujie

Abstract

The present invention provides an anti-HER2 antibody and use thereof, wherein the antibody provided by the present invention can be used for the treatment of HER2-positive diseases, and can also be used for the diagnosis and prognosis of HER2-positive diseases. The Antibody BAT0303F disclosed herein is expressed by a host cell with fucosyltransferase knocked out, and can enhance ADCC effect of the antibody.

IPC Classes  ?

  • C07K 16/32 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against translation products from oncogenes
  • A61P 35/00 - Antineoplastic agents

14.

ANTI-CTLA-4 MONOCLONAL ANTIBODY, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

      
Application Number 17788330
Status Pending
Filing Date 2020-12-25
First Publication Date 2023-06-29
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Su, Ziqi
  • Qin, Chao
  • Yu, Jin-Chen
  • Huang, Dandan
  • Wu, Yong
  • Cao, Di
  • Liu, Cuihua
  • Song, Shuqiang
  • Li, Shengfeng

Abstract

Disclosed is an anti-CTLA-4 monoclonal antibody and a preparation and use thereof. The anti-CTLA-4 antibody has the advantages of lower toxicity and better activity; in addition, the anti-CTLA-4 antibody also has a low content of high mannose glycoforms and/or a low content of sialylated glycoforms, which helps to prolong the half-life of the antibody and/or reduce immunogenicity. In addition, disclosed is a formulation with the antibody which has good stability.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61K 9/00 - Medicinal preparations characterised by special physical form

15.

RECOMBINANT ANTIBODY HAVING UNIQUE GLYCAN PROFILE PRODUCED BY CHO HOST CELL WITH EDITED GENOME AND PREPARATION METHOD THEREOF

      
Application Number 18050970
Status Pending
Filing Date 2022-10-28
First Publication Date 2023-06-29
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Qin, Chao
  • Zhou, Yuanqing
  • Xiao, Cuizhen

Abstract

The present invention, in the field of bioengineering and biotechnology, relates to a method for preparing a recombinant antibody with a unique glycan profile produced by a genome-edited CHO host cell. Specifically, according to a method of the present invention, the TALEN technology is used to edit the FUT8 gene in CHO cells that have been adapted for serum-free suspension growth. The edited CHO host cells can produce recombinant antibodies with a unique glycan profile. The unique glycan profile can be characterized by non-fucosylated N-linked oligosaccharide chains of the antibodies, extremely low N-glycosylation heterogeneity and uniform carbohydrate chains. The antibody prepared by the method of the invention exhibit significantly increased ADCC and greater stability.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • C12N 9/10 - Transferases (2.)
  • C12N 15/62 - DNA sequences coding for fusion proteins

16.

LIQUID FORMULATION OF HUMANIZED ANTIBODY FOR TREATING IL-6-MEDIATED DISEASES

      
Application Number 18045946
Status Pending
Filing Date 2022-10-12
First Publication Date 2023-06-22
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Lin, Jian
  • Liu, Fan
  • Yue, Rui
  • Wu, Zhihao
  • Wang, Shengwu
  • Li, Shengfeng

Abstract

The invention relates to a liquid formulation of humanized antibody for treating IL-6 related diseases. The liquid formulation contains 2-100 mg/ml recombinant humanized anti-human interleukin 6 receptor monoclonal antibody, 5-20 mM histidine salt buffer (or a buffer of a combination of 5-20 mM histidine salt and 5-20 mM sodium acetate), 0.025-0.075% (by volume) surfactant, and 3-5% (by mass to volume) stabilizer and water for injection. The antibody formulation enhances the stability of the recombinant anti-human interleukin 6 receptor monoclonal antibody, prevents the monoclonal antibody from aggregation, degradation, and acidic isomer increases. This formulation can be used for stabilizing the structure and function of the humanized antibody.

IPC Classes  ?

  • A61K 9/08 - Solutions
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

17.

ANTI-TNF-a ANTIBODY FORMULATION, PREPARATION METHOD THEREFOR AND USE THEREOF

      
Application Number 17800791
Status Pending
Filing Date 2021-02-19
First Publication Date 2023-06-08
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Yue, Haitao
  • Lin, Jian
  • Wu, Yong
  • Wang, Shengwu
  • Li, Shengfeng

Abstract

An anti-TNF-α antibody formulation, and a preparation method and use of the anti-TNF-α antibody is disclosed. The anti-TNF-α antibody formulation, preparation method, and use relates to the field of pharmacy. The formulation includes an anti-TNF-α antibody and a pharmaceutically acceptable carrier. The anti-TNF-α antibody includes a heavy chain with an amino acid sequence set forth in SEQ ID NO: 1 and a light chain with an amino acid sequence set forth in SEQ ID NO: 2. The pharmaceutically acceptable carrier includes a stabilizer, a surfactant and a buffer. The disclosed antibody formulation has high stability and does not support microorganism growth.

IPC Classes  ?

  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • C07K 16/24 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against cytokines, lymphokines or interferons
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
  • A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
  • A61P 19/02 - Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis

18.

DEVELOPMENT AND APPLICATION OF IMMUNE CELL ACTIVATOR

      
Application Number 17913429
Status Pending
Filing Date 2021-03-22
First Publication Date 2023-05-04
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Liang, Shizhong
  • Zheng, Dandan
  • Yu, Jin-Chen
  • Li, Shengfeng

Abstract

The development and use of an anti-OX40 antibody and immune cell activation is disclosed. The anti-OX40 antibody or a fragment of the anti-OX40 antibody retains strong binding to human OX40 or Rhesus Monkey OX40. The anti-OX40 antibody or a fragment of the anti-OX40 antibody more effectively activates T cells, generates stronger immune responses, and improves anti-tumor activity.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61P 35/00 - Antineoplastic agents

19.

ANTI-TIGIT IMMUNOSUPPRESSANT AND APPLICATION THEREOF

      
Application Number 17639877
Status Pending
Filing Date 2020-09-03
First Publication Date 2022-11-03
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Huang, Junjie
  • Wu, Xiaoyun
  • Xu, Zhenqian
  • Liang, Shide
  • Li, Shengfeng
  • Yu, Jin-Chen
  • Huang, Xianming

Abstract

The present invention provides an anti-TIGIT immunosuppressant and use thereof. The immunosuppressant can bind to the extracellular region of human TIGIT, and can be used for treating diseases such as a cancer.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61P 35/00 - Antineoplastic agents

20.

ANTIBODY BINDING TO PD-1

      
Application Number 17602715
Status Pending
Filing Date 2020-04-09
First Publication Date 2022-06-30
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Yue, Haitao
  • Lin, Jian
  • Pei, Shujun
  • Liang, Shizhong
  • Li, Shengfeng

Abstract

Disclosed herein are antibodies that bind to PD-1, comprising one or more CDRs selected from the amino acid sequences of SEQ ID NOs: 13, 14, 15, 16, 17, and 18. The antibodies have high affinity and low dissociation rate for PD-1, as well as the activity for neutralizing PD-1 in vitro. The antibodies disclosed herein can be full-length antibodies or antigen-binding fragments thereof. The antibodies can be used for detecting PD-1 and the like.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • G01N 33/574 - ImmunoassayBiospecific binding assayMaterials therefor for cancer
  • G01N 33/68 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing involving proteins, peptides or amino acids

21.

Recombinant antibody having unique glycan profile produced by CHO host cell with edited genome and preparation method thereof

      
Application Number 16337371
Grant Number 11505609
Status In Force
Filing Date 2018-08-10
First Publication Date 2020-06-25
Grant Date 2022-11-22
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Qin, Chao
  • Zhou, Yuanqing
  • Xiao, Cuizhen

Abstract

The present invention, in the field of bioengineering and biotechnology, relates to a method for preparing a recombinant antibody with a unique glycan profile produced by a genome-edited CHO host cell. Specifically, according to a method of the present invention, the TALEN technology is used to edit the FUT8 gene in CHO cells that have been adapted for serum-free suspension growth. The edited CHO host cells can produce recombinant antibodies with a unique glycan profile. The unique glycan profile can be characterized by non-fucosylated N-linked oligosaccharide chains of the antibodies, extremely low N-glycosylation heterogeneity and uniform carbohydrate chains. The antibody prepared by the method of the invention exhibit significantly increased ADCC and greater stability.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • C12N 9/10 - Transferases (2.)
  • C12N 15/62 - DNA sequences coding for fusion proteins

22.

Compounds and methods for the treatment of TROP2 positive diseases

      
Application Number 16100995
Grant Number 11192954
Status In Force
Filing Date 2018-08-10
First Publication Date 2019-02-14
Grant Date 2021-12-07
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Tang, Weijia
  • Huang, Xiaoyang
  • Yu, Jin-Chen
  • Ou, Ziqiang
  • Peng, Xian
  • Yang, Yili
  • Li, Shengfeng
  • Qin, Chao

Abstract

The present invention generally relates to compounds comprising antibodies, antigen-binding fragments thereof, polypeptides, and immunoconjugates that bind to TROP2 (TACSTD2). The present invention also relates to methods of using such TROP2-binding molecules for diagnosing and treating diseases, such as malignancies.

IPC Classes  ?

  • C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells
  • A61K 47/68 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
  • A61P 35/00 - Antineoplastic agents
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies

23.

Compounds and methods for the treatment of ERB B2/NEU positive diseases

      
Application Number 14802900
Grant Number 09737616
Status In Force
Filing Date 2015-07-17
First Publication Date 2015-11-12
Grant Date 2017-08-22
Owner BIO-THERA SOLUTIONS, LTD. (China)
Inventor
  • Tang, Weijia
  • Li, Shengfeng
  • Yu, Jin-Chen
  • Deng, Xiaobin

Abstract

Disclosed herein are anti-ERB B2/NEU antibodies conjugated with maytansinoid drugs for targeted delivery to disease tissues. Methods relating to the preparation and uses of such drug conjugates to treat ERB B2/NEU positive cells in cancers are provided.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates
  • A61K 31/537 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and at least one oxygen as the ring hetero atoms, e.g. 1,2-oxazines spiro-condensed or forming part of bridged ring systems
  • C07K 16/32 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against translation products from oncogenes

24.

Bispecific antibodies which bind EGFR and VEGF

      
Application Number 14452402
Grant Number 09567403
Status In Force
Filing Date 2014-08-05
First Publication Date 2015-02-12
Grant Date 2017-02-14
Owner Bio-Thera Solutions, Ltd. (China)
Inventor
  • Wu, Xiaoyun
  • Li, Shengfeng
  • Xu, Chenchao

Abstract

Provided are bispecific antibodies having a full-size antibody portion with two light chains and two heavy chains, wherein the two heavy chains each is fused to a single-chain variable fragment (scFv) portion. In certain embodiments, the full-size antibody has specificity to EGFR and the scFv has specificity to VEGF.

IPC Classes  ?

  • C07K 16/22 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against growth factors
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells
  • A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates

25.

Compounds and methods for the treatment of EGFR positive diseases

      
Application Number 13835537
Grant Number 09314536
Status In Force
Filing Date 2013-03-15
First Publication Date 2014-06-26
Grant Date 2016-04-19
Owner BIO-THERA SOLUTIONS, LTD., CO. (China)
Inventor
  • Qin, Chao
  • Li, Shengfeng

Abstract

Disclosed herein are anti-EGFR antibodies conjugated with maytansinoid drugs for targeted delivery to disease tissues. Methods related to the preparation and uses of such antibody drug conjugates to treat EGFR positive cells in cancers are provided.

IPC Classes  ?

  • C07K 17/06 - Peptides being immobilised on, or in, an organic carrier attached to the carrier via a bridging agent
  • C07K 16/18 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans
  • A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates
  • C07D 498/14 - Ortho-condensed systems

26.

Preparation of maytansinoid esters

      
Application Number 13836469
Grant Number 08889855
Status In Force
Filing Date 2013-03-15
First Publication Date 2014-06-26
Grant Date 2014-11-18
Owner BIO-THERA SOLUTIONS, LTD., CO. (China)
Inventor Deng, Xiaobin

Abstract

Provided are efficient methods for direct coupling of a maytansinoid with a carboxylic acid to prepare a maytansinoid C-3 ester in high yield using a rare earth metal-based or trifluoromethanesulfonate-based Lewis acid catalyst and a base together with a coupling reagent. Also provided are compositions used in such methods.

IPC Classes  ?

  • C07D 491/12 - Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups , , or in which the condensed system contains three hetero rings
  • C07D 498/06 - Peri-condensed systems
  • C07D 498/18 - Bridged systems
  • C07D 498/08 - Bridged systems

27.

Maytansinoid derivatives

      
Application Number 13838868
Grant Number 08877706
Status In Force
Filing Date 2013-03-15
First Publication Date 2014-06-26
Grant Date 2014-11-04
Owner BIO-THERA SOLUTIONS, LTD., CO. (China)
Inventor
  • Li, Shenfeng
  • Deng, Xiaobin
  • Tan, Songnuan
  • Tang, Weijia
  • Qin, Chao

Abstract

Disclosed herein are maytansinoid drug linker derivatives which can be linked to a antigen binding unit (Abu), and maytansinoid drugs linked with an antigen binding unit (Drug-Linker-Antigen binding Unit: D-L-Abu), for targeted delivery to disease tissues. D-L-Abu, D-L-Abu derivatives, and methods relating to the use of such drug conjugates to treat antigen positive cells in cancers and immunological disorders are provided.

IPC Classes  ?

  • A61K 38/00 - Medicinal preparations containing peptides
  • A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
  • A61P 35/00 - Antineoplastic agents
  • C07D 498/08 - Bridged systems
  • C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells
  • A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates

28.

Maytansinoid derivatives

      
Application Number 13837783
Grant Number 09345786
Status In Force
Filing Date 2013-03-15
First Publication Date 2014-06-26
Grant Date 2016-05-24
Owner BIO-THERA SOLUTIONS, LTD., CO. (China)
Inventor
  • Li, Shengfeng
  • Deng, Xiaobin
  • Tan, Songnuan
  • Tang, Weijia
  • Qin, Chao

Abstract

Disclosed herein are maytansinoid drug linker derivatives which can be linked to a antigen binding unit (Abu), and maytansinoid drugs linked with an antigen binding unit (Drug-Linker-Antigen binding Unit: D-L-Abu), for targeted delivery to disease tissues. D-L-Abu, D-L-Abu derivatives, and methods relating to the use of such drug conjugates to treat antigen positive cells in cancers and immunological disorders are provided.

IPC Classes  ?

  • C07K 17/06 - Peptides being immobilised on, or in, an organic carrier attached to the carrier via a bridging agent
  • C07K 16/18 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans
  • A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates
  • C07D 498/08 - Bridged systems
  • C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • C07K 16/32 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against translation products from oncogenes
  • A61K 31/537 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and at least one oxygen as the ring hetero atoms, e.g. 1,2-oxazines spiro-condensed or forming part of bridged ring systems
  • C07D 498/18 - Bridged systems
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies