Changeflow GovPing Pharma & Drug Safety Structure-Based Design of Long-Acting Cocaine H...
Routine Notice Added Final

Structure-Based Design of Long-Acting Cocaine Hydrolase Mutants for Treatment

Favicon for changeflow.com ChangeBridge: EPO Bulletin - Biotech (C12N)
Published March 25th, 2026
Detected April 2nd, 2026
Email

Summary

The European Patent Office published patent application EP4262851A1 on March 25, 2026, covering engineered cocaine hydrolase enzyme mutants designed for long-acting treatment of substance use disorders and organophosphorus toxicity. The application was filed by the University of Kentucky Research Foundation with inventors Zhan, Chang-Guo and Zheng, Fang. This A1 publication makes the application publicly available and establishes priority rights.

What changed

The EPO published application EP4262851A1, a patent covering structure-based design of long-acting cocaine hydrolase mutants for therapeutic use in treating cocaine addiction and organophosphorus poisoning. The application designates all EU member states plus other European countries. The technology involves engineered enzymes with enhanced stability and extended biological half-life compared to native cocaine hydrolase.

This publication does not create compliance obligations. Organizations developing similar cocaine-metabolizing enzyme therapeutics or researching enzyme-based addiction treatments should review the claims to assess potential freedom-to-operate implications. The publication establishes a priority date for the applicants; no third-party actions are required at this stage.

Source document (simplified)

← EPO Patent Bulletin

STRUCTURE-BASED DESIGN OF LONG-ACTING COCAINE HYDROLASE MUTANTS FOR TREATMENT OF SUBSTANCE USE DISORDERS AND ORGANOPHOSPHORUS TOXICITY

Publication EP4262851A1 Kind: A1 Mar 25, 2026

Applicants

University Of Kentucky Research Foundation

Inventors

ZHAN, Chang-Guo, ZHENG, Fang

IPC Classifications

A61K 38/46 20060101AFI20241003BHEP C12N 9/14 20060101ALI20241003BHEP C12N 9/18 20060101ALI20241003BHEP C12N 9/00 20060101ALI20241003BHEP A61P 25/00 20060101ALI20241003BHEP A61P 25/30 20060101ALI20241003BHEP

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

Structure-Based Design of Long-Acting Cocaine Hydrolase Mutants Treatment of Substance Use Disorders Organophosphorus Toxicity

Source

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

Classification

Agency
EPO
Published
March 25th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP4262851A1

Who this affects

Applies to
Educational institutions Pharmaceutical companies
Industry sector
6111 Higher Education 3254 Pharmaceutical Manufacturing
Activity scope
Patent Application Biotechnology Licensing Pharmaceutical Research
Geographic scope
European Union EU

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Pharmaceuticals Healthcare

Get Pharma & Drug Safety alerts

Weekly digest. AI-summarized, no noise.

Free. Unsubscribe anytime.

Get alerts for this source

We'll email you when ChangeBridge: EPO Bulletin - Biotech (C12N) publishes new changes.

Optional. Personalizes your daily digest.

Free. Unsubscribe anytime.