CAMBRIDGE, Mass., Jan. 10, 2025 (GLOBE NEWSWIRE) -- Mersana Therapeutics, Inc. (NASDAQ:MRSN), a clinical-stage biopharmaceutical company focused on discovering and developing a pipeline of antibody-drug conjugates (ADCs) targeting cancers in areas of high unmet medical need, today announced the U.S. Food and Drug Administration (FDA) recently granted an additional Fast Track designation to XMT-1660. The company also announced that the World Health Organization has approved emiltatug ledadotin (abbreviated a ...