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EPO Patent Application: Metformin and Sitagliptin Tablet Formulation

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Published March 18th, 2026
Detected March 25th, 2026
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Summary

The European Patent Office published patent application EP4563143A1 concerning a bilayer tablet formulation of Metformin and Sitagliptin that includes an antioxidant. The application was filed by Sanovel Ilac Sanayi ve Ticaret A.S. and lists Fatih Sunel, Nur Pehlivan Akalin, and Guldeniz Tunc as inventors.

What changed

This document is a publication of a European Patent Office (EPO) patent application, EP4563143A1, titled 'A BILAYER TABLET FORMULATION OF METFORMIN AND SITAGLIPTIN COMPRISING ANTIOXIDANT'. The application, filed by Sanovel Ilac Sanayi ve Ticaret A.S., details a specific pharmaceutical formulation for co-administering Metformin and Sitagliptin in a bilayer tablet, incorporating an antioxidant to potentially improve stability or efficacy. The publication date is March 18, 2026.

As this is a patent application publication, it does not impose direct regulatory obligations or compliance deadlines on pharmaceutical companies. However, it signifies potential new intellectual property in the diabetes treatment space. Companies involved in the manufacturing or development of diabetes medications, particularly those using Metformin and Sitagliptin, should be aware of this filing as it may impact future market exclusivity and product development strategies. The designated states indicate the patent's potential geographic coverage within Europe.

Source document (simplified)

← EPO Patent Bulletin

A BILAYER TABLET FORMULATION OF METFORMIN AND SITAGLIPTIN COMPRISING ANTIOXIDANT

Publication EP4563143A1 Kind: A1 Mar 18, 2026

Applicants

Sanovel Ilac Sanayi ve Ticaret A.S.

Inventors

SUNEL, Fatih, PEHLIVAN AKALIN, Nur, TUNC, GULDENIZ

IPC Classifications

A61K 9/20 20060101AFI20250331BHEP A61K 9/24 20060101ALI20250331BHEP A61K 31/155 20060101ALI20250331BHEP A61K 31/4985 20060101ALI20250331BHEP A61P 3/10 20060101ALI20250331BHEP

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, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

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Classification

Agency
EPO
Published
March 18th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
EP4563143A1

Who this affects

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

Taxonomy

Primary area
Pharmaceuticals
Operational domain
R&D
Compliance frameworks
FDA 21 CFR Part 11 GxP
Topics
Drug Manufacturing Intellectual Property

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