Watson Pharmaceuticals, Inc. (NYSE: WPI) today confirmed that the United States District Court for the District of Delaware has ruled that the asserted claims of United States Patent Nos. 7,410,978 (the '978 Patent), 7,759,359 (the '359 Patent), 7,781,448 (the '448 Patent), 7,781,449 (the '449 Patent) and 7,763,635 (the '635 Patent) for Sanctura XR® (trospium chloride extended-release capsules) are invalid. Watson's Abbreviated New Drug Application for a generic version of Sanctura XR® is pending with the Food and Drug Administration.
Sanctura XR® is indicated for the treatment of overactive bladder (OAB) with symptoms of urge urinary incontinence, urgency and urinary frequency. For the twelve months ending February 29, 2012, Sanctura XR® had total U.S. sales of approximately $68 million, according to IMS Health data.
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