A Multicenter, Randomized, Open, Phase III Trial of ddEC-THPvs Evaluating the Efficacy and Safety of TCHP Neoadjuvant Therapy for HER2-positive Breast Cancer

A Multicenter, Randomized, Open, Phase III，The study is being conducted to assess the efficacy and safety of anthracycline-containing ddEC-THP intensive regimen and an anthracycline-free TCbHP neoadjuvant therapy for HER2-positive breast cancer,Subjects will be treated until disease progression, toxicity is intolerable, informed consent is withdrawn, and investigators determine that medication must be discontinued. Drug efficacy and safety data will be collected.