Supernus sues Actavis for Trokendi XR patents infringement

2 October 2014

USA-based specialty drug firm Supernus Pharmaceuticals (Nasdaq: SUPN) says it has sued generic drugmaker Actavis (NYSE: ACT) and its subsidiaries for infringement of three patents covering its antiepileptic drug Trokendi XR, a once-daily extended release formulation of topiramate, the active ingredient of Johnson & Johnson's widely-used epilepsy drug Topamax, which is now off patent.

Supernus' US Patents No 8,298,576, 8,298,580 and 8,663,683 cover once-a-day topiramate formulations and methods of treating seizures using those formulations. Patent protection for Trokendi XR does not expire until 2029, according to the company.

Action follows Actavis’ ANDA filing with FDA

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