A Study of Fruquintinib Plus Chemotherapy for Postoperative Treatment of HER2-Negative Gastric Cancer With Poor TRG

Fruquinitinib: Take 4 mg QD for 2 weeks and stop for 1 week, every 3 weeks for a cycle; Standard chemotherapy: The selection of drugs is recommended by the 2024CSCO Guidelines for the Diagnosis and Treatment of Gastric Cancer, including SOX, XLOX or S-1, and the treatment cycle is one every 3 weeks