Alexion Pharmaceuticals, Inc. is a biopharmaceutical company working to develop and commercialize life-changing drug therapies for patients with serious and life-threatening medical conditions. Alexion is engaged in the discovery, development and commercialization of therapeutic products aimed at treating patients with a wide array of severe disease states, including hematologic, kidney and neurologic diseases, transplant rejection, cancer and autoimmune disorders. Soliris is Alexion's first marketed product, approved in the U.S., European Union and other countries as a treatment for all patients with PNH. Alexion is evaluating other potential indications for Soliris, and is pursuing development of other antibody product candidates in early stages of development.