The study included 40 patients with gastric cancer or gastroesophageal junction adenocarcinoma with clinical stage T3-4aN+M0; and confirmed after HER2 IHC results Patients with medium and high expression of HER2 (defined as: IHC 2+ 3+); the neoadjuvant treatment plan is: disitamab vedotin + PD-1 + capecitabine; the main goal of the study is to explore The effectiveness of disitamab vedotin combined with PD-1 monoclonal antibody and capecitabine in the neoadjuvant treatment of locally advanced gastric or gastroesophageal junction adenocarcinoma, and ultimately provide a basis for the update of treatment decisions for locally advanced gastric or gastroesophageal junction adenocarcinoma Proof of medical evidence.
This trial is a multi-center, open, single-arm, superior phase II clinical study.