Shom Goel, MD, PhD, of the Dana-Farber Cancer Institute, discusses preclinical data that suggest CDK4/6 inhibitors not only stop the growth of breast cancer cells, but also enhance antitumor immunity, a phenomenon that might help improve outcomes for people with advanced disease.
Hope S. Rugo, MD, of the University of California, San Francisco, discusses how treatment with a lower dose of palbociclib (100 mg vs 125 mg) in combination with fulvestrant or tamoxifen is associated with a lower rate of high-grade neutropenia (Abstract PD2-12).
François-Clément Bidard, MD, PhD, of the Institut Curie and the University of Versailles, discusses phase III study findings on the clinical utility of circulating tumor cell count as a tool to choose between first-line hormone therapy and chemotherapy for estrogen receptor–positive, HER2-negative metastatic breast cancer (Abstract GS3-07).
Dejan Juric, MD, of Massachusetts General Hospital, discusses phase III study findings on liquid biopsy–based assessment of PIK3CA mutational status and the combination of the selective PI3K-alpha inhibitor alpelisib plus fulvestrant in the treatment of advanced breast cancer (Abstract GS3-08).
Andrew D. Seidman, MD, of Memorial Sloan Kettering Cancer Center, and Charles E. Geyer, MD, of Virginia Commonwealth University, discuss phase III study findings on ado-trastuzumab emtansine vs trastuzumab as adjuvant therapy in patients with early HER2-positive breast cancer with residual invasive disease after neoadjuvant chemotherapy and HER2-targeted treatment (Abstract GS1-10).
Sara A. Hurvitz, MD, of the University of California, Los Angeles, discusses the natural history and novel combinations for HER2-positive disease as well as predictive and prognostic markers for this type of breast cancer.
