Neoadjuvant Sintilimab Plus Chemoradiotherapy for Locally Advanced Adenocarcinoma of Esophagogastric Junction

Patients receive 3 cycles of preoperative chemotherapy with Sintilimab（PD-1 inbibitor） and SOX (every 3 weeks), followed by radiotherapy (total dose of 36-40Gy in 18-22 fractions) during cycle 1 of the combination. Radical surgery for gastric cancer will be performed within 4-6 weeks after completion of neoadjuvant treatment, followed by 3-5 cycles of postoperative adjuvant chemotherapy with the SOX regimen.