December 15th 2013In the future, we also need to improve our ability to personalize the duration of endocrine therapy, with a goal of optimizing patient selection for extended therapy. Hopefully, clinical-pathologic indices and predictive biomarkers similar to the Oncotype DX 12-gene recurrence score or the PAM50 risk of recurrence score for adjuvant chemotherapy will soon emerge to guide adjuvant endocrine therapy.