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Capecitabine in combination with oxaliplatin or irinotecan in elderly patients with advanced colorectal cancer: results of a randomized phase II study.

Author(s): Rosati G, Cordio S, Bordonaro R, Caputo G, Novello G, Reggiardo G, Manzione L

Affiliation(s): Medical Oncology Unit, S. Carlo Hospital, Via Sanremo 197, Potenza, Italy. oncogerry@yahoo.it

Publication date & source: 2010-04, Ann Oncol., 21(4):781-6. Epub 2009 Aug 27.

Publication type: Clinical Trial, Phase II; Multicenter Study; Randomized Controlled Trial

BACKGROUND: To determine the efficacy and tolerability of capecitabine combined with oxaliplatin (CAPOX) or irinotecan (CAPIRI) as first-line treatment in patients with advanced/metastatic colorectal cancer aged > or =70 years. PATIENTS AND METHODS: Patients aged > or =70 years were randomly assigned to receive CAPOX [oxaliplatin 65 mg/m(2) intravenously (i.v.) days 1 and 8 and capecitabine 1000 mg/m(2) orally b.i.d. days 1-14; q21d] or CAPIRI (irinotecan 80 mg/m(2) i.v. days 1 and 8 and capecitabine 1000 mg/m(2) orally b.i.d. days 1-14; q21d). The primary study end point was overall response rate (ORR). RESULTS: Ninety-four patients were enrolled. In an intent-to-treat analysis, 2 complete responses (CRs) and 16 partial responses (PRs) were reported with CAPOX (ORR 38%), and 2 CRs and 15 PRs with CAPIRI (ORR 36%; P = 0.831). Median time to progression was 8 months for CAPOX and 7 months for CAPIRI (P = 0.195), with median survival times of 19.3 months and 14.0 months (P = 0.165), respectively. Global health status was improved in 45% and in 21% of patients in the CAPOX and CAPIRI arms, respectively. The most common treatment-related grade 3-4 adverse events in CAPIRI versus CAPOX patients were diarrhea (32% versus 15%; P = 0.052) and neutropenia (23% versus 6%; P = 0.021). CONCLUSION: CAPOX and CAPIRI had similar efficacy in elderly patients, although CAPOX seemed to be better tolerated.

Page last updated: 2010-10-05

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