Praluent Injunction Goes Unmentioned At PCSK9 Patent Case Appeal

Three-judge US federal appellate panel focuses on evidentiary rulings and patent validity in the dispute between Repatha marketer Amgen and Sanofi/Regeneron; lower court’s permanent injunction barring sales of Praluent did not come up at oral arguments.

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A federal appeals court panel that heard oral arguments in the PCSK9 inhibitor patent dispute June 6 focused its attention on evidentiary rulings and the validity of Amgen Inc.’s patents but did not raise any questions about a lower court order blocking US sales of Sanofi and Regeneron Pharmaceuticals Inc.’s Praluent (alirocumab).

Sanofi and Regeneron may have made some headway in their arguments to the Federal Circuit US Court of Appeals that a lower judge erred in excluding evidence the Praluent partners say was critical to invalidating Amgen’s patents

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