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Novartis defeats UK court bid to invalidate blockbuster drug Entresto patent

By Thomson Reuters Aug 13, 2026 | 8:56 AM

LONDON, Aug 13 (Reuters) – Swiss drugmaker Novartis on Thursday defeated a bid to invalidate its patent for blockbuster heart drug ​Entresto, with London’s High Court rejecting a ‌claim by Intas Pharmaceuticals’ Accord Healthcare which was planning a generic rival.

The ruling is a boost for Novartis as it navigates a busy period of patent ‌expiries ​including for Entresto, which makes ⁠up about 10% ⁠of Novartis’ sales.

Novartis’ European patent for Entresto, which treats heart failure and can also treat hypertension, expired in 2023 though it still ​has a so-called supplementary protection certificate which does not expire until 2028.

Accord applied to ⁠the High Court for ⁠a ruling that Novartis’ patent had ​always been invalid, while Novartis counterclaimed over the threatened ​infringement of its patent, with Accord intending ‌to launch a competing product later this year.

Judge Richard Meade said that “all the attacks on the patent fail”. He ruled that Novartis’ ⁠patent was valid while in force, its supplementary protection certificate was also valid and that Accord’s intended ⁠product would ‌infringe it.

Novartis and Accord did not ⁠immediately respond to requests for comment.

Meade ​also ‌said that Novartis’ patent was separately ​held to ⁠be valid after legal proceedings in the Netherlands. The company last year lost a bid in the United States to block a generic version of Entresto.

(Reporting by Sam Tobin; Editing by ​Susan Fenton)