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).
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).
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).
William M. Sikov, MD, of Women and Infants Hospital of Rhode Island, discusses the results of this study that showed pathologic complete response to presurgery chemotherapy improved survival (Abstract S2-05).
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).
Andrew Seidman, MD, of Memorial Sloan Kettering Cancer Center, and Eric P. Winer, MD, of the Dana-Farber Cancer Institute, discuss the results of this study that showed pathologic complete response to presurgery chemotherapy improved survival (Abstract S2-05).
