[Comment] Towards response-adapted neoadjuvant breast cancer treatment

The therapeutic landscape of early-stage HER2-positive breast cancer has been transformed over the past two decades.1 The introduction of HER2-directed therapy, including the antibody trastuzumab, has fundamentally altered the natural history of this disease, converting an aggressive breast cancer subtype associated with poor outcomes into one with high rates of pathological complete response and excellent long-term survival.1,2 These gains were…