Company News: Celgene, Glouceser Pharmaceuticals, Watson Pharmaceuticals and Takeda
Watson Pharmaceuticals said it is challenging the patent for Takeda's Rozerem (ramelteon) insomnia drug. The generics firm said that, following its recent ANDA submission with the FDA, Takeda filed a lawsuit in an effort to prevent Watson from selling ramelteon prior to the drug's scheduled patent expiration. Per patent rules, the suit bars FDA from approving any copycat version for up to 30 months, or until a court makes a final decision. For the 12 months ending in September, Rozerem had US sales of $91 million, according to IMS Health data cited by the Watson.