RecruitingProcedure68Ga-FAPI-46 PET/CT for Predicting Histological Response in Triple-negative Breast Cancer (FAP-IT)Prospective multicenter study evaluating the prediction of histological response after neoadjuvant pembrolizumab in combination with chemotherapy by pre-treatment 68Ga-FAPI-46 PET/CT imaging in patients with early-stage high-risk TNBC.