Journal
JOURNAL OF CLINICAL ONCOLOGY
Volume 22, Issue 13, Pages 2587-2593Publisher
AMER SOC CLINICAL ONCOLOGY
DOI: 10.1200/JCO.2004.08.125
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Purpose This randomized, multicenter, phase III trial evaluated whether sequential doxorubicin and docetaxel (A-->T) reduced hematological toxicity, especially febrile neutropenia, compared with concomitant (AT) administration as first-line chemotherapy in metastatic breast cancer (MBC). Patients and Methods One hundred forty-four patients were randomly assigned to receive three cycles of doxorubicin 75 mg/m(2) every 21 days followed by three cycles of docetaxel 100 mg/m(2), every 21 days (A-->T) or six cycles of the combination doxorubicin 50 mg/m(2) and docetaxel 75 mg/m(2) (AT) every 21 days. Patients previously treated with anthracyclines received two cycles of doxorubicin followed by four cycles of docetaxel (A-->T), or three cycles of AT followed by three cycles of docetaxel 100 mg/m(2) every 21 days. Results Febrile neutropenia was less common in the A-->T arm (29.3% of patients, 6.9% of cycles) compared with the AT arm (47.8% of patients, 14.8% of cycles; P = .02 and P = .0004, respectively). Asthenia, diarrhea, and fever occurred more frequently in the AT arm. The overall responses rates were 61% in the A-->T arm (95% CI, 50% to 72%) and 51% in the AT arm (95% Cl, 39% to 63%). The median duration of response was 8.7 months (A-->T) and 7.6 months (AT); the median time to progression was 10.5 months (A-->T) and 9.2 months (AT); the median overall survival was 22.3 months (A-->T) and 21.8 months (AT); and no significant differences were found. Conclusion A-->T significantly reduced febrile neutropenia compared with AT in MBC patients and maintains comparable antitumoral efficacy. A-->T represents a valid option for the treatment of MBC. (C) 2004 by American Society of Clinical Oncology.
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