The Efficacy and Safety of Benmelstobart for GC/EGC

After receiving the corresponding neoadjuvant treatment for 2 cycles, surgery was performed within 3-6 weeks after drug withdrawal.

1200mg, diluted to 250ml with normal saline, infusion time 60 ± 10mins. The first day of each cycle, 3 weeks (21 days) as a treatment cycle

it needs to be administered according to the patient\'s body surface area\< 40mg / time at 1.25m2; \> 50mg/ time for 1.25m2 and \<1.5m2; \> 60mg/ time at 1.5m2; Oral, twice a day, after morning and evening meals, for 14 consecutive days, rest for 7 days, as a treatment cycle; Repeat every 3 weeks;

130mg/m2, administered on the first day of each cycle, repeated every 3 weeks;

260mg/m2, intravenous infusion, 30 minutes per infusion, once every 3 weeks, administered on the first and eighth days of each cycle