Acadia Sues Three on New Patent for Its Lone Drug, Nuplazid (1)

Acadia Pharmaceuticals Inc. filed separate lawsuits alleging copies of Nuplazid proposed by Zydus Lifesciences Ltd., Aurobindo Pharma Ltd., and MSN Laboratories Private Ltd. infringe a patent issued in September, resurrecting disputes with the generic-drug makers after cases over related patents for the Parkinson’s disease treatment settled earlier this year.

In three complaints filed Oct. 21 in the US District Court for the District of Delaware, Acadia alleges the copies infringe a patent that was issued Sept. 27 and covers compositions containing pimavanserin in capsule formulations and manufacturing processes. Pimavanserin tartrate is Nuplazid’s active ingredient.

It and three related ...