In this multicenter, single‐arm trial, we investigated the efficacy and safety of the ECPy‐THPy regimen (epirubicin, cyclophosphamide, and pyrotinib followed by docetaxel, trastuzumab, and pyrotinib) as neoadjuvant therapy for patients with stage II–III HER2‐positive breast cancer. Our results revealed that tpCR was achieved in 107 (68.6%) out of 156 patients, which was in line with our previous pilot study and numerically higher than the tpCR rate in previous phase III KRISTINE trial and the phase III POENY trial. Abstract The objective of...