CHESHIRE, Conn.--(BUSINESS WIRE)--Alexion Pharmaceuticals, Inc. (Nasdaq: ALXN) today announced the presentation of research that provides further insight into the clinical consequences of paroxysmal nocturnal hemoglobinuria (PNH), and positive impact of Soliris® (eculizumab) therapy on long-term outcomes. The data, presented this weekend at the 16th Congress of the European Hematology Association (EHA) in London, included studies on mortality in PNH patients with renal impairment, long-term outcomes with Soliris therapy, disease burden in non-transfused patients with PNH, and other areas of research in PNH and Soliris therapy.