1. Oxaliplatin Added to Fluoropyrimidine/Bevacizumab as Initial Therapy for Unresectable Metastatic Colorectal Cancer in Older Patients: A Multicenter, Randomized, Open-Label Phase III Trial (JCOG1018).
- Author
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Takashima A, Hamaguchi T, Mizusawa J, Nagashima F, Ando M, Ojima H, Denda T, Watanabe J, Shinozaki K, Baba H, Asayama M, Hasegawa S, Masuishi T, Nakata K, Tsukamoto S, Katayama H, Nakamura K, Fukuda H, Kanemitsu Y, and Shimada Y
- Subjects
- Humans, Aged, Male, Female, Aged, 80 and over, Capecitabine administration & dosage, Capecitabine therapeutic use, Capecitabine adverse effects, Progression-Free Survival, Leucovorin administration & dosage, Leucovorin therapeutic use, Leucovorin adverse effects, Neoplasm Metastasis, Colorectal Neoplasms drug therapy, Colorectal Neoplasms pathology, Colorectal Neoplasms mortality, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Antineoplastic Combined Chemotherapy Protocols adverse effects, Oxaliplatin administration & dosage, Oxaliplatin therapeutic use, Oxaliplatin adverse effects, Bevacizumab administration & dosage, Bevacizumab adverse effects, Fluorouracil administration & dosage
- Abstract
Purpose: Doublet chemotherapy with fluoropyrimidine (FP) and oxaliplatin (OX) plus bevacizumab (BEV) is a standard regimen for unresectable metastatic colorectal cancer (MCRC). However, the efficacy of adding OX to FP plus BEV (FP + BEV) remains unclear for older patients, a population for whom FP + BEV is standard. We aimed to confirm the superiority of adding OX to FP + BEV for this population., Methods: This open-label, randomized, phase III trial was conducted at 42 institutions in Japan. Patients with unresectable MCRC age 70-74 years with Eastern Cooperative Oncology Group performance status (ECOG-PS) 2 and those 75 years and older with ECOG-PS 0-2 were randomly assigned (1:1) to an FP + BEV arm or an OX addition (FP + BEV + OX) arm. Fluorouracil plus levofolinate calcium or capecitabine was declared before enrollment. The primary end point was progression-free survival (PFS). The study was registered in the Japan Registry of Clinical Trials (identifier: jRCTs031180145)., Results: Between September 2012 and March 2019, 251 patients were randomly assigned to the FP + BEV arm (n = 125) and the FP + BEV + OX arm (n = 126). The median age was 80 and 79 years in the respective arm. The median PFS was 9.4 months (95% CI, 8.3 to 10.3) in the FP + BEV arm and 10.0 months (9.0 to 11.2) in the FP + BEV + OX arm (hazard ratio [HR], 0.84 [90.5% CI, 0.67 to 1.04]; one-sided P = .086). The median overall survival was 21.3 months (18.7 to 24.3) in the FP + BEV arm and 19.7 months (15.5 to 25.5) in the FP + BEV + OX arm (HR, 1.05 [0.81 to 1.37]). The proportion of any grade ≥3 adverse events was higher in the FP + BEV + OX arm (52% v 69%). There was one treatment-related death in the FP + BEV arm and three in the FP + BEV + OX arm., Conclusion: No benefit of adding OX to FP + BEV as first-line treatment was demonstrated in older patients with MCRC. FP + BEV is recommended for this population.
- Published
- 2024
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