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EPO Patent Bulletin - Antibodies Binding to Citrullinated Histone

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

The European Patent Office has published a patent bulletin regarding antibodies binding to citrullinated histone 2A and/or 4, filed by Citryll B.V. The patent, EP4659807A3, relates to antibodies or binding fragments thereof directed against citrulline-containing epitopes, potentially for therapeutic use in Neutrophil Extracellular Trap (NET)-associated pathologies.

What changed

The European Patent Office (EPO) has issued a patent bulletin (EP4659807A3) for Citryll B.V., detailing "Antibodies binding to citrullinated histone 2A and/or 4." The patent abstract describes antibodies or binding fragments thereof that target citrulline-containing epitopes, with potential applications in the therapy or prevention of Neutrophil Extracellular Trap (NET)-associated pathologies.

This publication is a patent grant and does not impose direct compliance obligations on regulated entities. However, companies involved in the development or research of antibodies for autoimmune or inflammatory conditions, particularly those related to NETs, should be aware of this granted patent. It may impact intellectual property strategies and competitive landscapes within the pharmaceutical and biotechnology sectors.

Source document (simplified)

← EPO Patent Bulletin

ANTIBODIES BINDING TO CITRULLINATED HISTONE 2A AND/OR 4

Search Report EP4659807A3 Kind: A3 Mar 18, 2026

Applicants

Citryll B.V.

Inventors

RAATS, Jozef Maria Hendrik, CHIRIVI, Renato Gerardus Silvano, VAN ROSMALEN, Johannes Wilhelmus Gerardus

Abstract

The invention provides antibodies or binding fragments thereof directed against citrulline-containing epitopes. The antibodies or binding fragments thereof of the invention can be used in therapy, for example in the treatment or prevention of Neutrophil Extracellular Trap (NET)-associated pathologies.

IPC Classifications

C07K 16/18 20060101AFI20260211BHEP A61P 29/00 20060101ALI20260211BHEP A61P 19/02 20060101ALI20260211BHEP

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

Applicants Inventors Abstract IPC Classifications Designated States

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
EP4659807A3

Who this affects

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

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Legal
Topics
Biotechnology Medical Research

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