‘Au Revoir TIGIT’: Gilead, Arcus Cut Gastro Cancer Drug After Late-Stage Failure on December 16, 2025 Arcus Biosciences domvanalimab Esophageal Neoplasms Gilead Sciences Malignant neoplasm of stomach nivolumab Opdivo STAR-221 TIGIT gene zimberelimab +
Gilead and Arcus Report Positive Results for TIGIT Approach in Gastric Cancer Trial on October 14, 2025 Arcus domvanalimab Gilead Malignant neoplasm of stomach TIGIT gene zimberelimab +