Response evaluation with 18 F-FDG PET/CT in metastatic breast cancer patients treated with Palbociclib: first experience in clinical practice

Objective Palbociclib is a cyclin-dependent kinase 4/6 inhibitor recently approved for treatment in advanced or metastatic breast cancer (BC) patients. The use of 18F-FDG PET/CT for chemo/endocrine therapy response assessment in BC patients is well reported in the literature, but no studies have evaluated its role for assessing Palbociclib efficacy in clinical practice. Our study aimed to evaluate the potential role of 18F-FDG PET/CT in this setting.