This study is a prospective, multicenter, single-arm clinical trial.
The study intends to enroll patients with pathologically or cytologically confirmed resectable locally advanced gastroesophageal junction tumors (cT2N+M0 and cT3-4bNxM0) who have not received prior systemic therapy. After signing the informed consent and being screened to meet the inclusion and exclusion criteria, patients will receive 3 cycles of Pucotenlimab combined with chemotherapy (Nab-Paclitaxel + Tegafur + Carboplatin). Preoperative imaging evaluations will be performed 3 to 6 weeks after the final dose administration to assess the efficacy of neoadjuvant therapy and the feasibility of radical resection. Efficacy evaluation will be performed after radical surgery for locally advanced gastroesophageal junction tumors.
Informed Consent Provide written informed consent for the clinical study and biobank before any study-related procedures.
Age and Gender Male or female patients aged 18 to 75 years.
Disease Diagnosis Histologically confirmed resectable locally advanced gastroesophageal junction tumor.
Prior Treatment History No prior systemic therapy for the current disease, including surgery, anti-tumor radiotherapy/chemotherapy, immunotherapy, etc.
Diagnosed with malignant diseases other than gastroesophageal junction tumors within 5 years before the first administration (excluding radically treated basal cell carcinoma of the skin, cutaneous squamous cell carcinoma, and/or carcinoma in situ after radical resection);
Known endoscopic evidence of active bleeding in the lesion;
Known evidence of distant metastasis;
Currently participating in therapeutic interventions of an interventional clinical study, or having received other drug therapies for malignant gastroesophageal junction tumors within 4 weeks before the first administration;