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CLINICAL TRIAL, PHASE II
JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Weekly paclitaxel plus carboplatin is an effective nonanthracycline-containing regimen as neoadjuvant chemotherapy for breast cancer.
BACKGROUND: To evaluate the activity and safety of nonanthracycline-containing weekly PCb [paclitaxel (Taxol) plus carboplatin] regimen in neoadjuvant treatment of breast cancer.
PATIENTS AND METHODS: Eligible patients were assigned to receive four cycles of PCb with dose of paclitaxel 80 mg/m(2) and carboplatin at an area under the curve of 2 mg x min/ml, given day 1, day 8 and day 15 of every 4 weeks. Pathological complete remission (pCR) was defined as no invasive cancer in breast and axillary samples.
RESULTS: Overall, 107 consecutive patients received weekly PCb treatment from December 2007 to December 2008, and one was diagnosed with bilateral breast cancer. A total of 85.2% of patients were initially diagnosed with stage III diseases. Clinical response rate was 86.1% with complete remission rate 32.4%. Twenty-one patients achieved pCR after neoadjuvant treatment, with pCR rate 19.4%. The incidence of grade 3-4 neutropenia was 40.2% and only one patient was reported with febrile neutropenia. Severe anemia and thrombocytopenia occurred in 4.7% and 0.9%, respectively, of patients. Peripheral neuropathy was frequent but never severe. Patients with estrogen receptor-negative, progesterone receptor-negative, triple-negative or human epidermal growth factor receptor 2 (Her2)-positive subtype disease had higher pCR.
CONCLUSIONS: Weekly PCb regimen was very active and tolerable as neoadjuvant treatment of breast cancer. This weekly PCb regimen should consider as a reasonable nonanthracycline-containing option in the neoadjuvant treatment of breast cancer.
PATIENTS AND METHODS: Eligible patients were assigned to receive four cycles of PCb with dose of paclitaxel 80 mg/m(2) and carboplatin at an area under the curve of 2 mg x min/ml, given day 1, day 8 and day 15 of every 4 weeks. Pathological complete remission (pCR) was defined as no invasive cancer in breast and axillary samples.
RESULTS: Overall, 107 consecutive patients received weekly PCb treatment from December 2007 to December 2008, and one was diagnosed with bilateral breast cancer. A total of 85.2% of patients were initially diagnosed with stage III diseases. Clinical response rate was 86.1% with complete remission rate 32.4%. Twenty-one patients achieved pCR after neoadjuvant treatment, with pCR rate 19.4%. The incidence of grade 3-4 neutropenia was 40.2% and only one patient was reported with febrile neutropenia. Severe anemia and thrombocytopenia occurred in 4.7% and 0.9%, respectively, of patients. Peripheral neuropathy was frequent but never severe. Patients with estrogen receptor-negative, progesterone receptor-negative, triple-negative or human epidermal growth factor receptor 2 (Her2)-positive subtype disease had higher pCR.
CONCLUSIONS: Weekly PCb regimen was very active and tolerable as neoadjuvant treatment of breast cancer. This weekly PCb regimen should consider as a reasonable nonanthracycline-containing option in the neoadjuvant treatment of breast cancer.
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