期刊
ONCOLOGIST
卷 17, 期 3, 页码 339-345出版社
ALPHAMED PRESS
DOI: 10.1634/theoncologist.2011-0406
关键词
Capecitabine; Cetuximab; Colorectal neoplasms; Aged patients
类别
资金
- TTD, Madrid, Spain
- Merck KGaA
- Roche
- Merck-Serono
Single-agent cetuximab is safe and active in elderly patients with advanced colorectal cancer (CRC). A cetuximab-capecitabine combination has not previously been tested in elderly patients with advanced CRC. Material and Methods. Sixty-six patients with advanced CRC were treated with cetuximab as a 400 mg/m(2) i.v. infusion followed by 250 mg/m(2) i.v. weekly plus capecitabine at a dose of 1,250 mg/m(2) every 12 hours. After the inclusion of 27 patients, the protocol was amended for safety reasons, reducing the dose of capecitabine to 1,000 mg/m(2) every 12 hours. Thirty-nine additional patients were treated with the reduced dose of capecitabine. Results. The overall response rate was 31.8%. KRAS status was determined in 58 patients (88%). Fourteen of 29 patients with wild-type KRAS tumors responded (48.3%; 95% confidence interval [CI], 29.4%-67.5%), compared with six of 29 patients with mutant KRAS tumors (20.7%; 95% CI, 8.0%-39.7%). The median progression-free survival (PFS) interval was 7.1 months. The median PFS interval for patients whose tumors were wild-type KRAS was significantly longer than for those with mutant KRAS tumors (8.4 months versus 6.0 months; p = .024). The high incidence of severe paronychia (29.6%) declined (7.7%) after capecitabine dose adjustment. Conclusions. Cetuximab plus capecitabine at a dose of 1,000 mg/m(2) every 12 hours may be an alternative to more aggressive regimens in elderly patients with advanced wild-type KRAS CRC. The Oncologist 2012; 17: 339-345
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