CAMBRIDGE, Mass., July 2, 2012 (GLOBE NEWSWIRE) -- Momenta Pharmaceuticals, Inc. (Nasdaq:MNTA), a biotechnology company specializing in the characterization and engineering of complex drugs, today announced that dosing has begun in the Phase 1/2 proof-of-concept clinical trial of M402 in combination with gemcitabine in patients with advanced metastatic pancreatic cancer.