...Among the 15 patients, the longest treatment duration was 18.9 months, and the median progression-free survival (mPFS) was 3.93 months, among which, mPFS of patients with microsatellite instability is 10.23 months, mPFS of patients expressing PD-L1 is 2.35 months, which is slightly higher than the historical data of Camrelizumab alone in the treatment of advanced gastric cancer (8 weeks for mPFS)...The combination of MASCT-I and Camrelizumab in the treatment of advanced gastric cancer or gastroesophageal junction cancer is a safe treatment regimen, and its efficacy deserves further study.