CHESHIRE, Conn.--(BUSINESS WIRE)--Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today reported that Soliris(R) (eculizumab), its first-in-class complement inhibitor, has been designated as an orphan drug by the Ministry of Health, Labour and Welfare of Japan. As a result of the designation, a New Drug Application (NDA) for Soliris would receive priority review from the Japanese regulatory authorities once it is submitted, and the drug would have 10 years of market exclusivity as a treatment for patients with paroxysmal nocturnal hemoglobinuria (PNH) in Japan.
