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).
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)
Benjamin D. Smith, MD, of the MD Anderson Cancer Center, discusses the higher complication rates and economic burdens of mastectomy plus reconstruction vs lumpectomy plus radiation in early breast cancer (Abstract S3-07).
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).
Andrew Seidman, MD, of Memorial Sloan Kettering Cancer Center, and Sabine Siesling, PhD, of the Netherlands Comprehensive Cancer Organization, discuss the improved overall survival after 10 years in women who received breast-conserving surgery compared with those who received mastectomy with radiation treatment. (Abstract S3-05)
Jame Abraham, MD, of the Cleveland Clinic, discusses findings on the use of avelumab, an anti–PD-L1 antibody, in patients with locally advanced or metastatic breast cancer, as well as the preliminary efficacy and safety findings of pembrolizumab in patients with PD-L1–positive, estrogen receptor–positive/HER2-negative disease (Abstracts S1-04, S5-07).
