Alexion to acquire Achillion Pharma

Alexion Pharmaceuticals, Inc.and Achillion Pharmaceuticals, Inc. 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 II and ACH-5228 in Phase 1.