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Opinion Review
Copyright: ©Author(s) 2026.
World J Gastroenterol. Sep 14, 2026; 32(34): 118762
Published online Sep 14, 2026. doi: 10.3748/wjg.118762
Table 1 Representative phase III trials of immune checkpoint inhibitors in perioperative and advanced gastric cancer
Trial name
Phase
Patient population
Treatment arms (intervention vs control)
PD-L1 cut-off (CPS)
Primary endpoint/result
Ref.
KEYNOTE-585IIIPerioperative (LAGC)Pembro + Chemo vs Placebo + ChemoAnalysis ≥ 1, ≥ 10pCR: Significantly improved; EFS/OS: Not met in the overall populationShitara et al[52], 2024
MATTERHORNIIIPerioperative (LAGC)Durva + FLOT vs Placebo + FLOTAll comerspCR: Significantly improved (19% vs 7%); EFS: Significantly improved (HR 0.71); OS immatureJanjigian et al[53], 2025
CheckMate 649IIIAdvanced (1st line)Nivo + Chemo vs Chemotherapy alone≥ 5, ≥ 1OS and PFS: Significantly improved in CPS ≥ 5 (standard of care) Janjigian et al[44], 2021
KEYNOTE-062IIIAdvanced (1st line)Pembro ± Chemo vs Chemotherapy alone≥ 1, ≥ 10OS: Pembro monotherapy non-inferior to chemo (CPS ≥ 1); combination failed superiorityShitara et al[43], 2020
ATTRACTION-4IIIAdvanced (1st line)Nivo + Chemo vs Placebo + ChemoAll comersPFS: Significantly improved; OS: Not metKang et al[46], 2022


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