The evidence supporting this protocol is provided by a phase III, multicentre, international, open-label, randomised trial (SUNLIGHT) comparing trifluridine/tipiracil (FTD-TPI) and bevacizumab with (FTD-TPI) alone in patients with refractory metastatic colorectal cancer who have previously received treatment with fluoropyrimidine, irinotecan, oxaliplatin, an anti-VEGF monoclonal antibody or an anti-EGFR monoclonal antibody.r
Between November 2020 and February 2022, 246 patients were assigned to each group and randomised 1:1 to receive FTD-TPI or bevacizumab with FTD-TPI.
The primary end point was overall survival (OS) and secondary end points were progression free survival (PFS), objective response (OR), disease control, quality of life and safety.
Efficacy
After a median follow up of 14.2 months in the combination group and 13.6 months in the FTD-TPI alone group; the median OS was 10.8 months and 7.5 months respectively (HR 0.61; 95% CI, 0.49 to 0.77; p<0.001). PFS was 5.6 months in the combination group and 2.4 months in the FTD-TPI group (HR 0.44; 95% CI, 0.36 to 0.54; p<0.001). OR was observed in 6.1% of patients in the combination group and in 1.2% of patients in the FTD-TPI group.r
Kaplan-Meier curves for OS and PFSr

© N Engl J Med 2023
Toxicity
Adverse events of any cause occurred in 98% of patients in each group. Severe adverse events (grade ≥ 3) were reported in 72.4% of patients in the combination group and in 69.5% of the FTD-TPI group. The most common adverse events that occurred during the treatment period in both groups were neutropenia, nausea and anaemia. The events that were more frequent in the combination group were hypertension, nausea and neutropenia. No treatment related deaths were reported.r
Adverse Eventsr

© N Engl J Med 2023