PHARE-C is an open-label, randomized, phase III, non-inferiority trial, that will recruit patients with human epidermal growth factor receptor 2 (HER2)-positive early breast cancer to allow for comparison of neoadjuvant treatment with paclitaxel plus trastuzumab versus trastuzumab as monotherapy.
Non-inferiority between the two treatment arms will be evaluated in terms of time to progression as primary objective. Treatment tolerance and cardiac toxicity will be assessed as secondary objectives.
In case of non pCR, a rescue by Trastuzumab emtansine (T-DM1) is planned to control the survival outcome.