12/12/2025 Arcus and Gilead have discontinued the Phase 3 STAR-221 trial of their TIGIT regimen in gastric and esophageal cancers Johnson & Johnson's AKEEGA received FDA approval for BRCA2-mutated CSPC Arcus and Gilead have discontinued the Phase 3 STAR-221 trial of their TIGIT regimen in gastric and esophageal cancers ( Ref ) The Phase 3 STAR-221 trial of Arcus Biosciences and Gilead's domvanalimab (anti-TIGIT) + zimberelimab (anti-PD-1) + chemotherapy vs nivolumab + chemoth