India denies Boehringer Ingelheim's interim injunction on linagliptin patent

12 April 2023

India’s Delhi High Court has refused to grant an interim injunction to German family-owned pharma major Boehringer Ingelheim in patent litigation concerning its patent-protected diabetes drug linagliptin, which is marketed under the brand names Trajenta and Trajenta Duo.

The court observed that prima facie the patent (IN'301) is vulnerable to revocation, and has said the company has "made an attempt towards evergreening the invention and re-monopolizing the same."

Boehringer holds a patent for linagliptin in India until August 18, 2023. The drug generated global sales of 1.7 billion euros ($1.86 billion) in 2022.

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