Banu Arun, MD, of The University of Texas MD Anderson Cancer Center, discusses a session she moderated that included discussion of how exercise and diet may reduce the risk of breast cancer, and emerging non-endocrine treatments that may help prevent the disease.
Javier Cortés, MD, PhD, of the International Breast Cancer Center, discusses the final phase III results of KEYNOTE-355, which showed that pembrolizumab and chemotherapy improved overall and progression-free survival, compared with placebo and chemotherapy, for patients with previously untreated, locally recurrent, inoperable or metastatic triple-negative breast cancer (Abstract GS1-02 ).
Meredith M. Regan, ScD, of Dana-Farber Cancer Institute, discusses findings that point to the potential benefits of using adjuvant exemestane plus ovarian function suppression (OFS) to treat premenopausal women with hormone receptor–positive early breast cancer. This conclusion came after 13 years of median follow-up on the TEXT and SOFT trials, during which this regimen was compared with tamoxifen and OFS (Abstract GS2-05).
Michael Gnant, MD, of the Medical University of Vienna, discusses phase III findings from the PALLAS study, which showed that adding 2 years of palbociclib to ongoing adjuvant endocrine therapy did not improve survival for patients with stage II to III hormone receptor–positive, HER2-negative early breast cancer. Dr. Gnant also talks about whether any correlative studies hint at patient subgroups that this regimen may benefit (Abstract GS1-07) .
Kevin Kalinsky, MD, of the Winship Cancer Institute at Emory University, discusses updated phase III results from the SWOG S1007 (RxPONDER) study of women with one to three positive lymph nodes, and hormone receptor–positive, HER2-negative breast cancer. The data showed that postmenopausal women with recurrence scores (RS) from 0 to 25 continue not to benefit from adjuvant chemotherapy, whereas premenopausal women with a RS from 0 to 25 did benefit from the addition of chemotherapy to endocrine therapy (Abstract GS2-07).
Sara A. Hurvitz, MD, of the University of California, Los Angeles Jonsson Comprehensive Cancer Center, discusses phase III findings from the DESTINY-Breast03 trial, which compared ado-trastuzumab deruxtecan (T-DXd) with standard-of-care trastuzumab emtansine (T-DM1) in patients with HER2-positive metastatic breast cancer. T-DXd showed superior progression-free survival across subgroups of patients previously treated with trastuzumab and a taxane, including those with brain metastases (Abstract GS3-01).
