55
Participants
Start Date
March 31, 2025
Primary Completion Date
March 31, 2028
Study Completion Date
December 31, 2028
Initial treatment: PD-1+ Oxaliplatin-based chemotherapy (CAPOX/SOX/FOLFOX)
"CAPOX/SOX (each cycle is 21 days): Oxaliplatin 130mg/m2, ivgtt, D1; Capecitabine 1000 mg/m2, po, bid, D1-14 or S-1: 40-60mg according to BSA, bid, D1-14.~FOLFOX (each cycle is 14 days): Oxaliplatin 85mg/m2, ivgtt, D1, Q2W; 5-Fluorouracil: 400mg/m2, D1, followed by 2400 mg/m2 as a continuous IV infusion over 46 hours; Leucovorin: 400mg/m2, iv, D1.~PD-1 monoclonal antibody:~Nivolumab 360mg/3 weeks or 240mg /2 weeks, iv, D1; If weight ≥60 kg, Sintilimab 200mg/3 weeks; if weight \< 60 kg, Sintilimab 3mg/kg/3 weeks, iv, D1; Tislelizumab 200mg/3 weeks, iv, D1; Pembrolizumab 200mg/3 weeks, iv, D1;"
Maintenance treatment (after 3 months): fruquintinib+PD-1
"After 3 months (12 weeks) of initial treatment with oxaliplatin-based chemotherapy combined with PD-1 monoclonal antibody, those with complete response (CR), partial response (PR) or stable disease (SD) assessed by imaging evaluation continued to receive maintenance treatment with furoquininib and PD-1 monoclonal antibody.~Fruquintinib 3 mg/d, qd po, D1-21, Q4W; PD-1 monoclonal antibody is repeated as initial treatment until the disease progresses or unacceptable toxicity."
Ruijin Hospital, Shanghai
Ruijin Hospital
OTHER