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  • Title: Dose-intensive epirubicin-based chemotherapy is superior to an intensive intravenous cyclophosphamide, methotrexate, and fluorouracil regimen in metastatic breast cancer: a randomized multinational study.
    Author: Ackland SP, Anton A, Breitbach GP, Colajori E, Tursi JM, Delfino C, Efremidis A, Ezzat A, Fittipaldo A, Kolaric K, Lopez M, Viaro D, HEPI 013 study group.
    Journal: J Clin Oncol; 2001 Feb 15; 19(4):943-53. PubMed ID: 11181656.
    Abstract:
    PURPOSE: To determine the relative efficacy of a cyclophosphamide epirubicin and fluorouracil (CEF) regimen compared with an intravenous (IV) cyclophosphamide, methotrexate, and fluorouracil (CMF) combination in metastatic breast cancer. PATIENTS AND METHODS: Patients were randomized to receive either CEF (cyclophosphamide 400 mg/m(2) IV, epirubicin 50 mg/m(2) IV, and fluorouracil 500 mg/m(2) IV on days 1 and 8), or CMF (cyclophosphamide 500 mg/m(2) IV, methotrexate 40 mg/m(2) IV, and fluorouracil 600 mg/m(2) IV on days 1 and 8). Treatment was given in 3- to 4-week cycles for a total of six to nine cycles. RESULTS: A total of 460 patients (223 CEF and 237 CMF) were randomized. Overall response rate was superior for CEF than CMF in all randomized patients (57% v 46%, respectively; P =.01) and in the assessable subset (66% v 52%, respectively; P =.005). With a median follow-up of more than 20 months, time to progression (TTP) was significantly longer with CEF than CMF (median 8.9 v 6.3 months, respectively; P =.0064), as was time to treatment failure (TTF) (median 6.2 v 5.0 months, respectively; P =.01). Significant survival differences were not observed between CEF and CMF (median 20.1 v 18.2 months, respectively; P =.23). Granulocytopenia and infections were similar in both arms. Grade 3/4 nausea/vomiting and alopecia were more frequent with CEF, whereas diarrhea was more frequent with CMF. Cardiac toxicity, primarily asymptomatic, required withdrawal from study of 15 patients on CEF (7%) and one patient on CMF. CONCLUSION: This CEF regimen safely provides significantly better tumor control than CMF, manifest as a higher response rate, and longer TTP and TTF, but not survival, when used as first-line chemotherapy for metastatic breast cancer.
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