An Exploratory Study of Pertuzumab and Trastuzumab in Combination With Palbociclib and Exemestane as Neoadjuvant Therapy for Triple-Positive Breast Cancer

This study is a prospective, multicenter, single-arm, exploratory study. A total of 90 patients with early/later-stage triple-positive breast cancer who were scheduled to receive neoadjuvant therapy were recruited. They received neoadjuvant treatment with trastuzumab, pertuzumab, palbociclib, and exemestane in combination. The aim of this study is to evaluate the efficacy and safety of the neoadjuvant treatment regimen of trastuzumab-pertuzumab combined with palbociclib and exemestane in triple-positive breast cancer.