Sarat Chandarlapaty, MD, PhD, of the Memorial Sloan Kettering Cancer Center, discusses results from this study that showed patients with ER-positive metastatic breast cancer who had a D538G and/or a Y537S mutation in the ESR1 gene had significantly worse median overall survival (Abstract S2-07).
Mitchell Dowsett, PhD, of the Royal Marsden Hospital discusses the EndoPredict test, which has improved performance compared with the widely used Oncotype Dx test (Abstract S3-01).
Michael Gnant, MD, of the Medical University of Vienna, discusses a study in which denosumab was added to adjuvant aromatase inhibitor therapy to improve disease-free survival in postmenopausal patients with early-stage, hormone receptor–positive breast cancer (Abstract S2-02).
Andrew Seidman, MD, of Memorial Sloan Kettering Cancer Center, and Erica L. Mayer, MD, MPH, of the Dana-Farber Cancer Institute, discuss this phase 3 trial of palbociclib with adjuvant endocrine therapy vs endocrine therapy alone for HR-positive/HER2-negative early breast cancer. (Abstract OT1-03-21)
Jack Cuzick, PhD, FMedSci, of Queen Mary, University of London, discusses his phase III study on postmenopausal women with DCIS who had similar outcomes whether they took tamoxifen or anastrozole for 5 years after surgery. (Abstract S6-03)
Andrew Seidman, MD, of Memorial Sloan Kettering Cancer Center, and Hope S. Rugo, MD, of the University of California, San Francisco, discuss findings on de-escalating systemic therapy for breast cancer (Abstract ES6-3).
