MacroGenics Announces Positive Interim Phase 1 Results for MGC026 and Highlights Plans to Initiate Front-Line Combination Study in SCCHN
ROCKVILLE, MD, Oct. 23, 2026 (GLOBE NEWSWIRE) -- MacroGenics, Inc. (NASDAQ: MGNX), a clinical-stage biopharmaceutical company focused on developing innovative antibody-based therapeutics for the treatment of cancer, today announced positive interim data from its Phase 1 study evaluating MGC026, a B7-H3-directed antibody-drug conjugate (ADC), in patients with advanced solid tumors. These Phase 1 data were presented today at the European Society for Medical Oncology (ESMO) 2026 Congress in Madrid, Spain. These results demonstrated durable activity across a broad range of solid tumors, which the Company believes supports expanded development of MGC026 in front-line metastatic squamous cell carcinoma of the head and neck (SCCHN) in combination with pembrolizumab.
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