Antigen-binding protein and use thereof

HK40137826APending Publication Date: 2026-09-18MINGHUI PHARMA HANGZHOU LTD +1
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Patent Information

Application Number
HK62026126436
Authority / Receiving Office
HK · HK
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-12-18
Filing Date
2026-07-21
Publication Date
2026-09-18
Estimated Expiration
2044-12-11

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Abstract

Nanobodies or antigen-binding fragments thereof that specifically bind to HER3, compositions containing said nanobodies or antigen-binding fragments thereof, nucleic acid molecules encoding said antibodies or antigen-binding fragments thereof. Furthermore, the use of said nanobodies or antigen-binding fragments thereof in the treatment and diagnosis of diseases is also contemplated.
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Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202480079366.4 (22) Application Date 2024.12.12 (66) Domestic Priority Data 202311743747.1 2023.12.18 CN (85) PCT International Application Entering National Phase Date 2026.06.15 (86) PCT International Application Application Data PCT / CN2024 / 138646 2024.12.12 (87) PCT International Application Publication Data WO2025 / 130727 ZH 2025.06.26 (71) Applicant Minghui Pharmaceutical (Hangzhou) Co., Ltd. Address 310018 Room 4-401, Hexiang Technology Center, Qiantang New District, Hangzhou, Zhejiang Province Applicant: Minghui Pharmaceutical (Shanghai) Co., Ltd. (72) Inventors: Liu Bo, Zhu Liyuan, Cao Guoqing, Shi Junwei, Cao Yuting, Weng Xialian (74) Patent Agency: China Council for the Promotion of International Trade Patent & Trademark Office Co., Ltd. 11038 Patent Attorney: Kong Xi (51) Int.Cl. C07K 16 / 32 (2006.01) C07K 16 / 30 (2006.01) A61K 39 / 395 (2006.01) C07K 16 / 28 (2006.01) C12N 15 / 13 (2006.01) (54) Invention Title: Antigen-binding protein and its use (57) Abstract: This invention relates to a nanobody that specifically binds to HER3 or an antigen-binding fragment thereof, a composition containing said nanobody or an antigen-binding fragment thereof, and a nucleic acid molecule encoding said antibody or antigen-binding fragment thereof. Furthermore, the invention relates to the application of the aforementioned nanobody or its antigen-binding fragment in the treatment and diagnosis of diseases. CN 122438870 A 2026.07.21 CN 1 22 43 88 70 A