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Alexion to Acquire Achillion

BOSTON & BLUE BELL, Pa.--(BUSINESS WIRE)--Alexion Pharmaceuticals, Inc. (NASDAQ:ALXN) and Achillion Pharmaceuticals, Inc. (NASDAQ:ACHN) today announced that they have entered into a definitive agreement for Alexion to acquire Achillion, a clinical-stage biopharmaceutical company focused on the development of oral small molecule Factor D inhibitors to treat people with complement alternative pathway-mediated rare diseases, such as paroxysmal nocturnal hemoglobinuria (PNH) and C3 glomerulopathy (C3G). Achillion currently has two clinical-stage medicines in development, including danicopan (ACH-4471) in Phase 2 and ACH-5228 in Phase 1.