About this trial
The aim of this study is to evaluate the efficacy and safety of short course radiotherapy followed by fruquintinib combined with Sintilimab as the first-line treatment of advanced mCRC compared to bevacizumab combined with capecitabine in patients unfit for intensive therapy.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Have signed an informed consent;
18 to 85 years old (including 18 and 85 years old);
Histopathologically confirmed unresectable advanced metastatic colorectal adenocarcinoma;
Have not received anti-tumor treatment for metastatic disease;
Disqualifiers
Currently has a disease or condition that affects drug absorption, or the patient is unable to take oral drugs;
Currently has digestive tract diseases such as active gastric and duodenal ulcers, ulcerative colitis, or active bleeding from unresectable tumors, or other conditions determined by the researcher that may cause gastrointestinal bleeding or perforation;
History of serious cardiovascular and cerebrovascular diseases;
Other malignant tumors within the past 5 years, excluding skin basal cell or squamous cell carcinoma after radical surgery, or cervical carcinoma in situ;
Trial design
Parallel
Treatments tested in this trial
Experimental
DrugSCRT: 5\*5Gy for 5 days, after a one-week rest, with fruquintinib plus sintilimab followed; Fruquintinib: qd po, 4mg/d, 2weeks on/1 week off, q3w; Sintilimab: intravenous infusion, 200mg, on day 1, q3w.
Active Comparator
DrugCapecitabine: bid po, 1000mg/m², on days 1-14, q3w; Bevacizumab: intravenous infusion, 7.5mg/kg, on day 1, q3w.
Treatment groups
Trial outcomes
Primary outcomes
Phase 1b - Objective Response Rate (ORR)
ORR according to RECIST v1.1, as assessed by the Investigator
Phase 2 - Progression-free Survival (PFS)
PFS according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1, as assessed by the Investigator
Secondary outcomes
Tolerability and safety of study regimens
Number of Participants With Treatment-emergent Adverse Events (TEAEs) according to CTCAE v5.0
Disease Control Rate (DCR)
DCR according to RECIST v1.1, as assessed by the Investigator
Overall Survival OS)
OS according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1, as assessed by the Investigator
Sponsors and contacts
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