Spots Global Cancer Trial Database for Neoadjuvant Immunotherapy and Chemoradiotherapy for Locally Advanced Esophagogastric Junction Adenocarcinoma

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Trial Identification

Brief Title: Neoadjuvant Immunotherapy and Chemoradiotherapy for Locally Advanced Esophagogastric Junction Adenocarcinoma

Official Title: Efficacy and Safety of PD-1 Combined With Long-term Concurrent Neoadjuvant Chemoradiotherapy and Chemotherapy in the Treatment of Resectable Locally Advanced Esophagogastric Junction Adenocarcinoma： A Phase II Study

Study ID: NCT05505461

Conditions

Adenocarcinoma of Esophagogastric Junction

Interventions

neoadjuvant Radiation plus SOX and PD-1 antibody

Study Description

Brief Summary: The purpose of this study was to evaluate the effect and safety of concurrent PD-1 antibody-based long-term radiotherapy followed by 2 cycles SOX with PD-1 in patients with locally advanced adenocarcinoma of esophagogastric junction.

Detailed Description: The incidence of adenocarcinoma of the esophagogastric junction (AEG) is increasing in Asian countries and Western Contries. Surgical resection is the most important treatment for AEG. However, the recurrence rate is high when surgery is performed alone. The results of CLASSIC, MAGIC, FLOT4, JCOG0501, PRODIGY, RESOLVE, CROSS trial showed that perioperative chemotherapy and pre- or postoperative chemoradiotherapy significantly increase the overall survival rate and disease free survival rate compared to surgery alone. Radiotherapy and immunotherapy can increase sensitivity to each other, and several clinical studies have also showed that PD-1 antibody may significantly prolongs the life.Thus the investigators plan to conduct this clinical trial to evaluate the effect and safety of concurrent PD-1 antibody-based long-term radiotherapy followed by 2 cycles SOX with PD-1 in patients with locally advanced adenocarcinoma of esophagogastric junction. Subjects will receive long-term radiotherapy (5w) concurrent with PD-1 antibody for 2 cycles, then receive two cycles of SOX regimen combined PD-1 after a week's rest. Surgery will be performed 2 weeks after the last cycle of neoadjuvant treatment. Adjuvant treatment will be started 3 to 8 weeks after surgery, and SOX regimen will be given for 4 cycles.