期刊
JOURNAL OF CANCER RESEARCH AND CLINICAL ONCOLOGY
卷 136, 期 5, 页码 737-743出版社
SPRINGER
DOI: 10.1007/s00432-009-0712-3
关键词
Bevacizumab; Chemotherapy; Metastatic colorectal cancer; Older patients; Pooled analysis
类别
资金
- F. HoVmann-La Roche
Bevacizumab is frequently combined with 5-fluorouracil-based chemotherapy for patients with metastatic colorectal cancer (mCRC). The relative benefit of bevacizumab in older patients has not been widely studied and is of interest. This retrospective analysis used data from three first-line randomized controlled studies and one second-line randomized controlled study of bevacizumab plus chemotherapy in medically fit (Eastern Cooperative Oncology Group performance status 0 or 1) patients with mCRC. Overall survival (OS) and on-treatment progression-free survival (PFS) were assessed in patients aged < 65, a parts per thousand yen65, and a parts per thousand yen70 years. Results were compared using unstratified hazard ratios (HRs). Grade 3-5 adverse events were also assessed. Bevacizumab statistically significantly improved PFS [HR 0.58; 95% confidence interval (CI) 0.49-0.68] and OS (HR 0.85; 95% CI 0.74-0.97) in patients aged a parts per thousand yen65 years; patients aged a parts per thousand yen70 years had similar improvements. Benefits were consistent across the studies, irrespective of setting, bevacizumab dose, or chemotherapy regimen. Increases in thromboembolic events were observed in patients aged a parts per thousand yen65 and a parts per thousand yen70 years in the bevacizumab group compared with the control group, mainly as a result of increases in arterial thromboembolic events. No other substantial age-related increases in grade 3-5 adverse events were observed. In medically fit older patients, bevacizumab provides similar PFS and OS benefits as in younger patients.
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