Phase III Study of Gemcitabine Plus Docetaxel Compared With Capecitabine Plus Docetaxel for Anthracycline-Pretreated Patients With Metastatic Breast Cancer
2009
Purpose Patients with metastatic breast cancer who are pretreated with anthracyclines frequently receive taxane-based combinations. This phase III study compared the efficacy and safety of gemcitabine-docetaxel (GD) with capecitabine-docetaxel (CD) in advanced breast cancer. Patients and Methods Patients were randomly assigned to GD (G 1,000 mg/m2 days 1 and 8; D 75 mg/m2 day 1) or CD (C 1,250 mg/m2 twice daily days 1 through 14; D 75 mg/m2 day 1) every 21 days. Comparison of progression-free survival (PFS) was the primary objective. Results Patient characteristics were balanced between arms (N = 305). Median PFS was 8.05 months (95% CI, 6.60 to 8.71) for GD and 7.98 (95% CI, 6.93 to 8.77) for CD (log-rank P = .121). Overall response rate (ORR) was 32% in both arms, and overall survival (OS) was not different between arms (P = .983). Time to treatment failure (TTF; defined as discontinuation, progressive disease, death as a result of any cause, or the start of a new anticancer therapy) was superior in the...
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