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Randomised trial comparing biweekly oxaliplatin plus oral capecitabine versus oxaliplatin plus i.v. bolus fluorouracil/leucovorin in metastatic colorectal cancer patients: results of the Southern Italy Cooperative Oncology study 0401.

Author(s): Comella P, Massidda B, Filippelli G, Farris A, Natale D, Barberis G, Maiorino L, Palmeri S, Cannone M, Condemi G, Southern Italy Cooperative Oncology Group

Affiliation(s): Department of Medical Oncology, National Tumour Institute, Via M. Semmola, 80100, Naples, Italy. pasqualecomella@libero.it

Publication date & source: 2009-02, J Cancer Res Clin Oncol., 135(2):217-26. Epub 2008 Aug 22.

Publication type: Randomized Controlled Trial; Research Support, Non-U.S. Gov't

PURPOSE: Oxaliplatin combined with either fluorouracil/leucovorin (OXAFAFU) or capecitabine (OXXEL) has a demonstrated activity in metastatic colorectal cancer patients. We aimed at comparing these two regimens in terms of response rate (RR), safety, progression-free survival (PFS), and quality of life (QoL) of patients. METHODS: A total of 322 patients with metastatic colorectal cancer were randomized to receive biweekly: oxaliplatin 100 mg/m(2) i.v. on day 1, capecitabine 1,000 mg/m(2) orally twice daily from day 1 to day 11 (OXXEL); or oxaliplatin 85 mg/m(2) i.v. on day 1; 6S-leucovorin 250 mg/m(2) i.v. and fluorouracil 850 mg/m(2) i.v. on day 2 (OXAFAFU). RESULTS: Eleven complete and 42 partial responses were registered with OXXEL (RR = 34%); six complete and 48 partial responses were obtained with OXAFAFU (RR = 33%) (P = 0.999). Severe adverse events were less frequent (32 vs. 43%) with OXXEL, which also reduced the occurrence of severe neutropenia (10 vs. 27%) and febrile neutropenia (6 vs. 13%), but produced more gastric side effects (8 vs. 3%) and diarrhea (13 vs. 8%). QoL did not differ across the two arms. Median PFS was 6.6 months in the OXXEL, and 6.5 months in the OXAFAFU arm (HR = 1.12, P = 0.354). Median overall survival was 16.0 and 17.1 months (HR = 1.01, P = 0.883). CONCLUSIONS: OXXEL and OXAFAFU regimens were equally active in metastatic colorectal cancer. The choice should be based on patient preference and on pharmacoeconomic evaluations.

Page last updated: 2009-10-20

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