Hope S. Rugo, MD, FASCO, and Rebecca Alexandra Dent, MD, FASCO, on Breast Cancer Data Highlights: Sequencing of Endocrine Therapy
2025 ASCO Annual Meeting
Hope S. Rugo, MD, FASCO, of City of Hope, and Rebecca Alexandra Dent, MD, FASCO, of National Cancer Centre Singapore, review the results of a biomarker analysis of the DESTINY-Breast06 trial, which evaluated trastuzumab deruxtecan after endocrine therapy in patients with metastatic breast cancer (Abstract 1013). They also discuss findings from the SERENA-6 and EMBER-3 trials, also presented at ASCO 2025, and what all this new data means for the sequencing of endocrine therapy in patients with breast cancer.
The ASCO Post Staff
Neil M. Iyengar, MD, of Memorial Sloan Kettering Cancer Center, reviews several studies that aimed to answer two questions: does menopausal hormone therapy (HRT) impact overall survival and breast cancer–specific mortality in younger women diagnosed with high-risk disease (Abstract 10506); and do GLP-1 receptor agonists (GLP-1 RAs), a class of weight-loss medications, have cancer risk reduction properties (Abstracts 10507 and 10508).
The ASCO Post Staff
Violaine Randrian, MD, PhD, of Memorial Sloan Kettering Cancer Center and CHU/Université de Poitiers, reviews gene-specific outcomes in patients with Lynch syndrome treated with immune checkpoint inhibitors for advanced cancer (Abstract 10504).
The ASCO Post Staff
Constantine Si Lun Tam, MD, FRACP, FRCPA, MBBS, of Alfred Hospital and Monash University, reviews results from the 5-year follow-up of arm C of the SEQUOIA trial of treatment-naive patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (Abstract 7011).
The ASCO Post Staff
Martin Reck, MD, PhD, of LungenClinic Grosshansdorf, Germany, discusses data from the phase III AEGEAN trial that studied perioperative durvalumab and neoadjuvant chemotherapy. Patients who were MRD-positive after surgery had significantly worse disease-free survival compared to MRD-negative patients. In addition, mutations in KEAP1 and KMT2C were associated with MRD positivity and reduced benefit from the regimen, identifying a small high-risk subgroup with poor prognosis (Abstract 8009).
The ASCO Post Staff
Stephen K.L. Chia, MD, FRCPC, of BC Cancer Agency, reviews data from the phase III CCTG/BCT MA.40/FINER trial of fulvestrant and ipatasertib for advanced HER2-negative, ER-positive breast cancer following disease progression on first-line CDK 4/6 and aromatase inhibitors (LBA1005).
