Detailing the Ongoing Phase 3 STAR-221 Trial of Domvanalimab/Zimberelimab Plus FOLFOX in First-Line Gastric/GEJ/Esophageal Adenocarcinoma
November 24th 2025
Yelena Y. Janjigian, MD, and Zev A. Wainberg, MD, detail the design of the phase 3 STAR-221 trial comparing domvanalimab plus zimberelimab and FOLFOX with nivolumab plus chemotherapy for first-line advanced gastric, GEJ, or esophageal adenocarcinoma. They discuss why nivolumab plus chemotherapy serves as an appropriate control arm and the importance of head-to-head evidence in clarifying comparative benefit across immunotherapy combinations. They review the study’s primary endpoints and overall goals, including survival outcomes and the potential to redefine the frontline standard.