文摘
Background The tolerance and safety associated with the administration order of the anthracycline and taxane drugs have not been evaluated. Patients and methods Breast cancer patients with node-positive or high-risk patients with node-negative were eligible. The feasibility and toxicity were evaluated in the following regimens—arm A, 3 courses of fluorouracil 500?mg/m2, epirubicin 100?mg/m2 and cyclophosphamide 500?mg/m2 (FEC) followed by 3 courses of docetaxel 100?mg/m2 (DOC); arm B, 3 courses of DOC followed by 3 courses of FEC. Results Forty-two patients were registered. The relative dose intensity was 94.2?% for FEC and 97.8?% for DOC in arm A, and 98.9?% for DOC and 95.2?% for FEC in arm B. In arm A, grade 3 or higher hematological toxicity was observed in nine patients, and febrile neutropenia developed in three patients with FEC. In arm B, grade 3 or higher hematological toxicity was observed in seven patients, but febrile neutropenia was not noted in any patient. Conclusion The regimens in both arms A and B were safe regarding adjuvant chemotherapy for early breast cancer. However, DOC followed by FEC might be more tolerable. Further studies will maximize the results obtained with DOC followed by FEC.