La Jolla Pharmaceutical Company to Acquire Tetraphase Pharmaceuticals, Inc.

SAN DIEGO & WATERTOWN, Mass.--(BUSINESS WIRE)--La Jolla Pharmaceutical Company, which is dedicated to the development and commercialization of innovative therapies that improve outcomes in patients suffering from life-threatening diseases, and Tetraphase Pharmaceuticals, Inc. (Nasdaq: TTPH), a biopharmaceutical company focused on commercializing its novel tetracycline XERAVA™ to treat serious and life-threatening infections, today announced that they have entered into a definitive merger agreement. Under the terms of the definitive merger agreement, La Jolla would acquire Tetraphase, through a tender offer, for $43.0 million in upfront cash plus potential future cash payments of up to $16.0 million pursuant to contingent value rights (CVRs). The Board of Directors of Tetraphase unanimously recommends that stockholders tender their shares in the La Jolla tender offer once it is commenced.