RecruitingPhase 2Biological interventionA Study of TRK-950 When Used in Combination With Ramucirumab and Paclitaxel in Patients With Gastric CancerThis study will assess the efficacy, safety, optimal dose and ADA and NAbs development of TRK-950 at two separate dose levels in combination with ramucirumab and paclitaxel (RAM+PTX) as compared with RAM + PTX treatment alone in participants with gastric or gastro-esophageal junction (GEJ) adenocarcinoma.