Modified Release Gamma-Hydroxybutyrate Formulations

ChangeBridge: EPO Bulletin - Pharma (A61K)

Published March 25th, 2026

Detected April 1st, 2026

Summary

The European Patent Office published patent application EP3487483A1 for Flamel Ireland Ltd., covering modified release gamma-hydroxybutyrate formulations with improved pharmacokinetics. The patent application designates all EPO member states including 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.

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What changed

The EPO published international patent application EP3487483A1 for modified release gamma-hydroxybutyrate (GHB) formulations with improved pharmacokinetics. The applicants are Flamel Ireland Ltd. and the inventors include Mégret, Claire, Guillard, Hervé, and Duibuisson, Jean-François. The patent is classified under IPC codes A61K 9/16, A61K 9/50, and A61K 31/19.

This is a standard patent publication providing public notice of the application's existence and claims. No compliance deadlines, regulatory requirements, or enforcement actions are associated with this document. Companies developing competing formulations or generic versions of GHB products should review the claims to assess potential freedom-to-operate considerations.

Source document (simplified)

← EPO Patent Bulletin

MODIFIED RELEASE GAMMA-HYDROXYBUTYRATE FORMULATIONS HAVING IMPROVED PHARMACOKINETICS

Publication EP3487483A1 Kind: A1 Mar 25, 2026

Applicants

Flamel Ireland Ltd.

Inventors

MÉGRET, Claire, GUILLARD, Hervé, DUIBUISSON, Jean-François

IPC Classifications

A61K 9/16 20060101AFI20180126BHEP A61K 9/50 20060101ALI20180126BHEP A61K 31/19 20060101ALI20180126BHEP

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

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