Kevin Kalinsky, MD, on HR-Positive HER2-Negative Breast Cancer: Endocrine Therapy and Chemotherapy
2021 San Antonio Breast Cancer Symposium
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).
The ASCO Post Staff
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).
The ASCO Post Staff
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) .
The ASCO Post Staff
Peter Schmid, MD, PhD, of Barts Cancer Institute, discusses phase III findings from KEYNOTE-522, in which researchers found a generally consistent event-free survival benefit among patients with early-stage high-risk triple-negative breast cancer who were treated with neoadjuvant pembrolizumab plus chemotherapy followed by adjuvant pembrolizumab (Abstract GS1-01).
The ASCO Post Staff
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.
The ASCO Post Staff
Charles Coombes, MD, PhD, of Imperial College, London, discusses study results on samuraciclib, a first-in-class, oral, selective inhibitor of CDK7, in combination with fulvestrant in patients with advanced hormone receptor–positive HER2-negative breast cancer. The combination of agents has demonstrated evidence of anti-tumor activity for patients who have progressed on their prior CDK4/6 inhibitor treatment (Abstract GS3-10).
