SAN FRANCISCO, Jan. 24, 2011 (GLOBE NEWSWIRE) -- Immunomedics, Inc. (Nasdaq:IMMU), a biopharmaceutical company primarily focused on the development of monoclonal antibody-based products for the targeted treatment of cancer, autoimmune and other serious diseases, today announced that combining antibody-directed drug and radionuclide therapeutics for pancreatic cancer improved efficacy in preclinical studies with minimal toxicity. Results from these investigations were presented at the 2011 Gastrointestinal Cancers Symposium.