This is a two-arm, randomized phase II clinical study. It is planned to enroll 44 patients with primary left-sided, RAS and BRAF wild-type metastatic colorectal cancer. After signing the informed consent, eligible subjects will be screened to enter the clinical study and assigned to two treatment groups using simple randomization and allocation concealment methods. The treatment plans for the two groups are as follows: Group A: FOLFOXIRI (Irinotecan 165mg/m², iv, d1; Oxaliplatin 85mg/m², iv, d1; (Levo) Folinic Acid (200) 400mg/m², iv, d1; total 5-FU 2400mg/m², iv gtt (continuous for 48h), d1) + Bevacizumab (5mg/kg, i.v, Q2W) Group B: FOLFOX (Oxaliplatin 85mg/m², iv gtt (for 2h), d1; (Levo) Folinic Acid (200) 400mg/m², iv gtt (for 2h), d1; 5-FU 400mg/m², iv, followed by 2400mg/m², iv gtt (continuous for 46-48h), d1) + Cetuximab (500mg/m², i.v, Q2W) Both groups A and B will repeat the treatment every 2 weeks, for a maximum of 9 cycles. Then, the attending physician will decide whether to conduct maintenance treatment (Capecitabine or 5FU/LV with or without Bevacizumab is recommended). Both groups A and B will be combined with QL1706 (5mg/kg, i.v, Q3W) for a maximum of 52 weeks. Medication will continue until the researcher judges that there is no longer clinical benefit (the researcher makes a comprehensive judgment based on RECIST v1.1 imaging evaluation and clinical status, etc.), intolerable toxicity occurs, the subject withdraws informed consent, or other criteria for terminating treatment in the protocol are met, whichever comes first.
Age range
18 Years – 75 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Objective Response Rate
Timeframe: 18 weeks