In combination w/ endocrine therapy for adjuvant treatment of adult patients w/ hormone receptor (HR) +ve, human epidermal growth factor receptor 2 (HER2) -ve, node +ve early breast cancer at high risk of recurrence. In combination w/ aromatase inhibitor as initial endocrine-based therapy for adult patients w/ HR +ve, HER2 -ve advanced or metastatic breast cancer. In combination w/ fulvestrant for adult patients w/ HR +ve, HER2 -ve advanced or metastatic breast cancer w/ disease progression following endocrine therapy.