Impact of Treatment With Trifluridine/Tipiracil in Combination With Bevacizumab on Health-Related Quality of Life and Performance Status in Refractory Metastatic Colorectal Cancer: An Analysis of the Phase III SUNLIGHT Trial

Abstract

Background: The efficacy of trifluridine/tipiracil (FTD/TPI) + bevacizumab compared to FTD/TPI for treatment of refractory metastatic colorectal cancer (mCRC) was demonstrated in the SUNLIGHT trial. This analysis of SUNLIGHT investigated the impact of treatment with FTD/TPI + bevacizumab on patient quality of life (QoL) and Eastern Cooperative Oncology Group performance status (ECOG PS). Methods: Questionnaires (EORTC QLQ-C30 and EQ-5D-5L) and ECOG PS assessments were conducted at baseline and on Day 1 of each treatment cycle. Time to definitive deterioration (TTDD) of QoL and time to ECOG PS worsening between treatment arms was assessed. A repeated-measures mixed-effects model was used to compare changes in QoL and ECOG PS from baseline. Kaplan-Meier and Cox regression methods were used to assess TTDD of QoL, time to ECOG PS worsening to ≥ 2, and overall survival (OS) and progression-free survival (PFS) in patients maintaining an ECOG PS of 0-1. Results: Both treatment arms showed similar QoL scores from baseline to cycle 6, with no clinically relevant change over time. Patients receiving FTD/TPI + bevacizumab had a longer TTDD of QoL than patients receiving FTD/TPI, as well as longer time to ECOG PS worsening. In patients with maintained ECOG PS, median OS and PFS was prolonged in the FTD/TPI + bevacizumab arm compared to the FTD/TPI arm. Conclusion: This analysis of SUNLIGHT showed that patients treated with FTD/TPI + bevacizumab had no clinically relevant changes in QoL, and prolonged TTDD and time to ECOG PS worsening, compared to patients treated with FTD/TPI.