Efficacy and Safety of Fruquintinib in Combination With PD-1 Inhibitors as First-line Maintenance Therapy for Advanced HER-2 Negative Gastric Cancer: a Single-arm, Prospective, Exploratory Clinical Study

"This is a one-arm, prospective, exploratory clinical study, including patients with advanced HER-2-negative gastric cancer (including gastroesophageal junction adenocarcinoma) who received first-line immunization combined with standard chemotherapy (RECIST 1.1 criteria) and were treated with fruquintinib（4mg orally, once daily for 3 wks on/1 wk off ）combined with PD-1 antibody. Until the investigator assesses loss of clinical benefit, unacceptable toxicity, decision by the investigator or subject to withdraw treatment, or death, whichever comes first.~PD-1: Nivolumab(360mg IV d1, Q3W）；Sintilimab(200mg IV d1, Q3W）；Tislelizumab(200mg IV d1, Q3W） can be selected;"