 ROCKVILLE, MD, Dec. 16, 2020 GLOBE NEWSWIRE -- MacroGenics, Inc. Nasdaq: MGNX, a biopharmaceutical company focused on developing and commercializing innovative monoclonal antibody-based therapeutics for the treatment of cancer, today announced that the U.S. Food and Drug Administration FDA has approved MARGENZA, in combination with chemotherapy, for the treatment of adult patients with metastatic HER2-positive breast cancer who have received two or more prior anti-HER2 regimens, at least one of which was for metastatic disease. MARGENZA is the first product approved from MacroGenics promising pipeline. The approval was based on safety and efficacy results from the pivotal Phase 3 SOPHIA trial. 