Robert C. Stein, PhD, MBBChir, FRCP, on ER-Positive HER2-Negative Early Breast Cancer: Test-Directed Chemotherapy
ASCO 2026
Robert C. Stein, PhD, MBBChir, FRCP, of the National Institute for Health Research University College London Hospitals Biomedical Research Centre, discusses the first results from the phase III randomized OPTIMA trial, which is comparing chemotherapy decisions made with the Prosigna (PAM50) gene expression test with standard treatment with estrogen receptor (ER)-positive, HER2-negative early breast cancer (Abstract 500).
The ASCO Post Staff
Noelle Cloven, MD, of Texas Oncology, discusses the actively recruiting RAINFOL-03 (ENGOT-EN-31/GOG-3128) study, a global, phase III, open-label, randomized study of rinatabart sesutecan vs investigator’s choice of chemotherapy in patients with endometrial cancer after receipt of platinum-based chemotherapy and PD-L1 inhibition (Abstract TPS5646).
The ASCO Post Staff
Colton Jones, MD, of The University of Texas at San Antonio, talks about the results of a global, multicenter analysis that sought to determine the safety and efficacy of glucagon-like peptide-1 receptor agonists (GLP-1 RAs) for the primary prevention of hepatocellular carcinoma (HCC) in a pan-etiology high-risk cohort (Abstract 10522).
The ASCO Post Staff
Julie R. Brahmer, MD, FASCO, of the Bloomberg–Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University School of Medicine, provides expert commentary on the overall survival results from the phase III HARMONi-6 trial presented in this year’s Plenary Session. The study compared ivonescimab plus chemotherapy vs tislelizumab plus chemotherapy in previously untreated patients with advanced squamous non–small cell lung cancer (NSCLC) (Abstract LBA4).
The ASCO Post Staff
Ronald C. Chen, MD, MPH, FASCO, of the University of Kansas Medical Center, presents health-related quality of life (HRQoL) data from the AMBASSADOR trial, which showed that in patients with high-risk muscle-invasive urothelial carcinoma after radical surgery, adjuvant pembrolizumab for 1 year approximately doubled disease-free survival, causes fatigue and dyspnea which modestly impacted physical function and ability to perform certain roles (such as work and hobbies), without impact on overall quality of life (Abstract 4513).
The ASCO Post Staff
Mali Barbi, MD, MS, of Northwell Health Cancer Institute Center for Women's Cancer, discusses durable survival benefits shown in the NRG-GY018 trial with pembrolizumab and the RUBY trial with dostarlimab for patients with mismatch repair–deficient (dMMR) endometrial cancer. In addition, B7-H4 antibody-drug conjugates such as puxitatug samrotecan are emerging as options for relapsed/metastatic disease.
