This study will evaluate the efficacy and safety of docetaxel plus carboplatin (TCb) regimen
compared with conventional chemotherapy regimen (epirubicin plus cyclophosphamide followed by
docetaxel, EC-T) regimen as adjuvant chemotherapy in patients with early-stage high-risk
estrogen receptor (ER) positive and human epidermal growth factor receptor 2 (HER2) negative
(ER+/HER2-) breast cancer.