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Trifluridine/tipiracil plus bevacizumab for third-line treatment of refractory metastatic colorectal cancer: The phase 3 randomized SUNLIGHT study.

2023; Lippincott Williams & Wilkins; Volume: 41; Issue: 4_suppl Linguagem: Inglês

10.1200/jco.2023.41.4_suppl.4

1527-7755

Josep Tabernero, Gerald W. Prager, Marwan Fakih, Fortunato Ciardiello, Eric Van Cutsem, Elena Élez, Felipe Melo Cruz, Lucjan Wyrwicz, Daniil Stroyakovskiy, Zsuzsanna Pápai, Pierre-Guillaume Poureau, Gábor Liposits, Chiara Cremolini, Igor Bondarenko, Dominik Paul Modest, Karim A. Benhadji, Ronan Fougeray, Catherine Leger, Nadia Amellal, Julien Taı̈eb,

Colorectal Cancer Surgical Treatments

4 Background: Trifluridine/tipiracil (FTD/TPI) plus bevacizumab (Bev) demonstrated promising efficacy in a randomized phase 2 trial of heavily pretreated patients (pts) with metastatic colorectal cancer (mCRC). SUNLIGHT was conducted to confirm these findings. Methods: The global phase 3 SUNLIGHT study enrolled pts aged ≥18 years with histologically confirmed mCRC, ECOG PS 0/1, and treated with 1-2 prior chemotherapy regimens in an advanced setting, including fluoropyrimidines, irinotecan, oxaliplatin, an anti-VEGF monoclonal antibody (if medically considered) and/or anti-EGFR monoclonal antibody for RAS wild-type tumors. Pts were randomised (1:1) to receive FTD/TPI (35 mg/m 2 twice daily on days 1–5 and 8–12 of each 28-day cycle) alone or combined with Bev (5 mg/kg on days 1 and 15). Primary endpoint was overall survival (OS). Results: Between Nov 2020 and Feb 2022, 492 pts were randomised to receive FTD/TPI + Bev (n = 246) or FTD/TPI (n = 246). Baseline characteristics were balanced between arms. FTD/TPI + Bev significantly extended OS over FTD/TPI, median OS was 10.8 months vs 7.5 months, respectively (HR, 0.61; 95% CI, 0.49, 0.77; P< 0.001). OS rates at 12 months were 43% in the FTD/TPI + Bev arm and 30% in the FTD/TPI arm. Median progression-free survival was 5.6 months in the FTD/TPI + Bev arm and 2.4 months in the FTD/TPI arm (HR, 0.44; 95% CI, 0.36,0.54; P< 0.001). Grade ≥3 adverse events (AEs) were not significantly increased in the FTD/TPI + Bev arm vs the FDT/TPI arm (72.4% vs 69.5%). No new safety signals were noted. Conclusions: FTD/TPI + Bev provided a statistically significant and a clinically meaningful 3.3-month improvement in OS, extending mOS up to 10.8 months, with a 39% reduction in the HR of death in pts with refractory mCRC and with a predictable and acceptable safety profile. Clinical trial information: NCT04737187 .