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Genmab A/S Bispecific Antibodies Against CD3 and CD20 Patent

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Published March 18th, 2026
Detected March 23rd, 2026
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Summary

The European Patent Office published a patent application (EP4678661A3) for Genmab A/S concerning bispecific antibodies targeting CD3 and CD20. The patent abstract details their use in treating diseases requiring T cell-mediated killing of CD20-expressing cells.

What changed

The European Patent Office has published a patent application, EP4678661A3, filed by Genmab A/S. The application details bispecific antibodies that target both CD3 and CD20, and their potential use in treating diseases where T cell-mediated killing of CD20-expressing cells is desired. This publication represents the granting of a patent for this specific antibody technology.

While this is a patent publication and not a regulatory rule, it signifies intellectual property protection for Genmab A/S in the field of oncology therapeutics. Companies operating in this space, particularly those developing similar bispecific antibody therapies, should be aware of this granted patent. No immediate compliance actions are required for entities outside of Genmab A/S, but it may impact future research, development, and commercialization strategies in the oncology market.

Source document (simplified)

← EPO Patent Bulletin

BISPECIFIC ANTIBODIES AGAINST CD3 AND CD20

Search Report EP4678661A3 Kind: A3 Mar 18, 2026

Applicants

Genmab A/S

Inventors

ENGELBERTS, Patrick, BREIJ, Esther, C. W., RADEMAKER, Rik, ALTINTAS, Isil, SATIJN, David, VERPLOEGEN, Sandra, RADERSMA, Riemke Van Dijkhuizen, VAN DEN BRINK, Edward, N., SCHUURMAN, Janine, PARREN, Paul

Abstract

Bispecific antibodies directed to CD3 and CD20 and uses of such bispecific antibodies, in particular use thereof in the treatment of diseases in which specific targeting and T cell-mediated killing of cells that express CD20 is desired.

IPC Classifications

A61K 39/00 20060101AFI20260210BHEP A61P 35/00 20060101ALI20260210BHEP C07K 16/28 20060101ALI20260210BHEP C07K 16/30 20060101ALI20260210BHEP C07K 16/46 20060101ALI20260210BHEP

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 →

Named provisions

Bispecific antibodies against CD3 and CD20

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
EPO
Published
March 18th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP4678661A3

Who this affects

Applies to
Drug manufacturers Pharmaceutical companies
Industry sector
3254 Pharmaceutical Manufacturing 3254.1 Biotechnology
Activity scope
Drug Development Therapeutic Antibody Production
Geographic scope
European Union EU

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Research & Development
Compliance frameworks
FDA 21 CFR Part 11 GxP
Topics
Biotechnology Oncology

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