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Brief Title: Neo-Sequence 1: Neoadjuvant Chemotherapy With or Without Antiangiogenesis and Sequential Immunotherapy for HER2-negative MMR-proficient Locally Advanced Gastric or Gastroesophageal Adenocarcinoma
Official Title: Neo-Sequence 1: Phase 2 Study of Neoadjuvant Chemotherapy With or Without Antiangiogenesis and Sequential Immunotherapy for HER2-negative MMR-proficient Locally Advanced Gastric or Gastroesophageal Adenocarcinoma
Study ID: NCT05540145
Brief Summary: This is a single-institution, prospective phase II trial designed to evaluate the efficacy of neoadjuvant chemotherapy and sequential immunotherapy in patients with locally advanced esophagogastric junction and gastric adenocarcinoma. Patients with Her-2 positive or dMMR tumors will be excluded from the study. Six cycles of nab-paclitaxel, oxaliplatin and S-1 with or without bevacizumab, followed by three circles of nab-paclitaxel, bevacizumab, with or without S-1 combined with two cycles of PD-1 monoclonal antibody, will be administered as neoadjuvant therapy. Patients will receive different adjuvant treatments depending on the degrees of surgical radicality and the pathological reactions of tumors.
Detailed Description:
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: No
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Beijing, Beijing, China