Today in Merck Sharp and Dohme Ltd. v. Shionogi & Co Ltd., [2016] EWHC 2989 (Pat)(High Court 2016)(Arnold, J.), the High Court invalidated Shionogi’s European Patent (UK) No. 1 422 218. This patent covers Shionogi’s anti-HIV drug “Tivicay”.

Noninfringement:  The Court thus reached a conclusion of no infringement as to the MSD drug “Isentress” on the basis of invalidity.

The opinion of the High Court is attached.