NCT07431281 2026-05-27Sonesitatug Vedotin in Combination With Capecitabine With or Without Rilvegostomig in Participants With Advanced or Metastatic Gastric, Gastroesophageal Junction, or Esophageal Adenocarcinoma Expressing Claudin18.2AstraZenecaPhase 3 Recruiting2,130 enrolled