Efficacy And Safety Of Bevacizumab (Bev)-Based Combination Regimens In Patients With Metastatic Colorectal Cancer (Mcrc): Randomized Phase Ii Study Of Bev Plus Folfiri Versus Bev Plus Xeliri (Fnclcc Accord 13/0503 Study)

JOURNAL OF CLINICAL ONCOLOGY(2009)

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4086 Background: The combination of BEV and chemotherapy is highly effective in patients with mCRC and improves response rate, progression-free survival and overall survival compared with chemotherapy alone. This randomized non-comparative phase II trial evaluated the efficacy and safety of BEV in combination with either XELIRI or FOLFIRI as first-line therapy for mCRC. Methods: Patients were eligible for inclusion in this study if they had histologically proven measurable mCRC, were aged 18–75 years, and had an ECOG performance status (PS) of 0–2. Patients were treated with 8 cycles of XELIRI (irinotecan 200 mg/m 2 on Day 1 and capecitabine 1000 mg/m 2 bid on Days 1–14) + BEV 7.5 mg/kg on Day 1, every 3 weeks or 12 cycles of FOLFIRI (irinotecan 200 mg/m 2 on Day 1 + 5-fluorouracil (5-FU) 400 mg/m 2 + folinic acid 400 mg/m 2 on day 1 followed by 5-FU 2400 mg/m 2 via 46-h infusion) + BEV 5 mg/kg on day 1, every 2 weeks. BEV was continued to disease progression. Patients aged ≥65 years received a lower daily dose of capecitabine (800 mg/m 2 bid). The primary endpoint was crude progression-free survival (PFS) at 6 months. Results: In total, 145 patients were entered in the study between March 2006 and January 2008; 72 patients received BEV + XELIRI and 73 patients received BEV + FOLFIRI (male 64%/48%; median age 61/61 years; 35/36% aged >65 years). Preliminary results from the first 6 months of follow-up are reported here. A total of 491/783 cycles was administered, 63%/67% receiving at least the initially planned number of cycles (8 cycles for BEV + XELIRI and 12 for BEV + FOLFIRI). Main results are given in the table . Conclusions: This randomized non-comparative study has shown that BEV + XELIRI and BEV + FOLFIRI are similarly effective treatments for patients with mCRC, with manageable toxicity profiles. Results with updated follow-up will be presented at the Meeting. [Table: see text] [Table: see text]
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Bevacizumab,Metastatic Colorectal Cancer
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