- Research Article
- 10.1097/js9.0000000000004074
Safety and effectiveness of neoadjuvant immunochemotherapy versus chemotherapy in large Borrmann type III/IV gastric cancer: a multicenter retrospective comparative cohort study
- Nov 18, 2025
- International Journal of Surgery
- K Liu + 10 more +10
Background: Large Borrmann type III and IV gastric cancer (GC) is a special type of GC characterized by poor prognosis and high mortality. Immunotherapy has been demonstrated to have acceptable efficacy and safety in metastatic GC. However, it was unclear whether large Borrmann type III and IV GC patients could benefit from neoadjuvant immunotherapy plus chemotherapy (IC). Aim: The aim is to explore safety and efficacy of neoadjuvant immunotherapy plus chemotherapy in large Borrmann type III and IV GC patients. Method: This multi-center retrospective comparative cohort study included 124 patients with large Borrmann type III and IV GC who received neoadjuvant therapy at several large-scale hospitals in Western China between January 2020 and June 2024. Patients were divided into the chemotherapy C group and the IC group. The drug adverse events and surgical complications, major pathological response (MPR), and pathological complete response (pCR) were compared between the two groups. Results: It was not significantly different in terms of drug adverse events of any grade (53.7% vs. 47%, P > 0.05), and in terms of surgical complications (25% vs. 22.9%, P >0.05) between the IC group and the C group. The pCR rate and the MPR rate were 12.2% versus 6% and 22.0% versus 14.5% for the IC group and the C group, respectively. These differences were not statistically significant. No pCR patient was found in the Borrmann IV group and the large Borrmann type III esophagogastric junction cancer group. For clinical stage III GC, the MPR rate was higher in the IC group than that in the C group (22.5% vs. 8.2%, P = 0.03). Conclusion: Neoadjuvant IC could be well tolerated and did not significantly improve the pCR or MPR rates in the overall population of large Borrmann type III and IV GC.
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