CAMBRIDGE, Mass.--(BUSINESS WIRE)--Alnylam Pharmaceuticals, Inc. (Nasdaq: ALNY), a leading RNAi therapeutics company, announced today that it has selected its fourth program in its ‘Alnylam 5x15’ initiative: ALN-APC, an RNAi therapeutic targeting protein C for the treatment of hemophilia. By reducing levels of protein C, a natural anticoagulant pathway, ALN-APC is intended to act by increasing thrombin generation and reducing the frequency of bleeding in hemophilia patients, including those more severe patients with inhibitors against their replacement factors.