Abstract
Reducing primary tumor volume is the main role of neoadjuvant chemotherapy for breast cancer. We evaluated the benefit of adding docetaxel to anthracyclin as neoadjuvant therapy. This study is a retrospective cohort analysis comparing the efficacy of neoadjuvant chemotherapy in patients subjected to docetaxel and epirubicin or 5-fluoruracil, epirubicin and cyclophosphamide combinations (DE and FEC group, respectively). The mean number of chemotherapy delivered was similar in both groups (P = 0.8). A total of 316 patients were treated (151 in FEC group and 165 in DE group). Primary endpoint was the clinical and pathological response to therapy. Breast conserving surgery rate was compared. In T1/2 staged patients, the complete clinical response rate was 7.5% in FEC group and 32% in DE group (P = 0.002), and the breast conserving surgery rate was 72 and 73% in FEC and DE groups, respectively (P = 0.9). In the subset of patients staged as T3 and T4a-c, objective response was higher in DE group (P < 0.0001 and P = 0.008, respectively). Breast conserving surgery rate was 38 and 63% in FEC and DE groups, respectively, in T3 staged patients and, 20.5 and 37% in T4a-c staged patients (P = 0.003 and 0.08). Despite the similar number of chemotherapy cycles delivered in both groups, the presence of microscopic axillary lymph node involvement after chemotherapy was less frequent in DE group. Neoadjuvant chemotherapy with DE combination is more effective in terms of clinical and pathological response propitiating higher breast conserving surgery rate than FEC combination in stage II and III breast cancer.
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Andrade, J.M., Carrara, H.H.A., Pimentel, F.F. et al. Taxane-based chemotherapy enhances response to neoadjuvant treatment for stage II and III breast cancer. Med Oncol 28 (Suppl 1), 65–69 (2011). https://doi.org/10.1007/s12032-010-9711-0
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DOI: https://doi.org/10.1007/s12032-010-9711-0