About this trial
To evaluate the efficacy and safety of immune checkpoint inhibitor-based combination therapy with targeted therapy and chemotherapy in patients with locally advanced unresectable or metastatic colorectal cancer.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 18-75 years;
Histologically confirmed adenocarcinoma of colorectal cancer, initially unresectable locally advanced or metastatic/recurrent disease;
Expected survival ≥12 weeks;
No prior systemic antitumor therapy for colorectal cancer;
Disqualifiers
Prior immune checkpoint inhibitor therapy;
CNS or leptomeningeal metastases;
Uncontrolled cardiovascular disease or hypertension;
Active autoimmune disease requiring systemic therapy;
Trial design
Single group
Treatments tested in this trial
Serplulimab
DrugSerplulimab: 200 mg IV Day 1, q2w
Fruquintinib
DrugFruquintinib: 4 mg orally once daily, Days 1-21, every 4 weeks
mFOLFOX6 (oxaliplatin, calcium folinate, and 5-FU)
DrugOxaliplatin 85 mg/m² IV q2w Leucovorin 400 mg/m² IV q2w 5-FU 400 mg/m² IV bolus Day 1 5-FU 1200 mg/m²/day continuous IV infusion Days 2-3
Treatment groups
Trial outcomes
Primary outcomes
Conversion Rate to Surgery
Objective Response Rate
Secondary outcomes
Disease Control Rate
Depth of Response
Depth of Response (DpR): defined as the maximum percentage reduction of tumor target lesions compared with baseline (pre-treatment) during the course of tumor treatment.
Early Tumor Shrinkage
Early Tumor Shrinkage (ETS): defined as a predefined percentage reduction in the sum of the longest diameters of target lesions within a specified time period after the initiation of treatment.
R0 Resection Rate
Sponsors and contacts
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Ye Xu
Lead sponsor
Fudan University
Sponsor institution
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