Changeflow GovPing Pharma & Drug Safety Estrogen Receptor Antagonists
Routine Notice Added Final

Estrogen Receptor Antagonists

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Published March 25th, 2026
Detected April 2nd, 2026
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Summary

The European Patent Office published patent application EP4310079A1 for estrogen receptor antagonists filed by Shenzhen Forward Pharmaceuticals Co., Limited. The patent covers heterocyclic compounds classified under C07D 498/04 and C07D 519/00 with pharmaceutical applications including antineoplastic treatments under A61K 31/4738. The application is designated for all EPC contracting states.

What changed

The EPO published international patent application EP4310079A1 for estrogen receptor antagonists, filed by Shenzhen Forward Pharmaceuticals Co., Limited (China). The application covers specific heterocyclic chemical compounds with potential therapeutic applications in cancer treatment, classified under C07D 498/04 and C07D 519/00 with pharmaceutical composition applications under A61K 31/4738 and A61P 35/00. The designated contracting states include all EPC member states (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR).

This is a patent publication notice, not a regulatory action imposing compliance obligations. No deadlines, fees, or required actions arise from this publication. Pharmaceutical companies developing similar compounds should review this publication to assess potential freedom-to-operate considerations or opportunities for licensing negotiations with the applicant.

Source document (simplified)

← EPO Patent Bulletin

ESTROGEN RECEPTOR ANTAGONISTS

Publication EP4310079A1 Kind: A1 Mar 25, 2026

Applicants

Shenzhen Forward Pharmaceuticals Co., Limited

Inventors

YANG, Xuan, ZHU, Chenggang, ZHANG, Chaochun, TALLEY, John Jeffery, CHEN, Chaole, BAO, Liming, MIN, Xiangyan, XU, Liangliang

IPC Classifications

C07D 498/04 20060101AFI20240924BHEP C07D 519/00 20060101ALI20240924BHEP A61P 35/00 20060101ALI20240924BHEP A61K 31/4738 20060101ALI20240924BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

View original document →

Classification

Agency
EPO
Published
March 25th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP4310079A1

Who this affects

Applies to
Pharmaceutical companies
Industry sector
3254 Pharmaceutical Manufacturing
Activity scope
Patent Filing Pharmaceutical Compound Development
Geographic scope
European Union EU

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Legal
Topics
Intellectual Property Healthcare

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