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).
Jennifer A. Woyach, MD, of The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute at The Ohio State University, discusses the ongoing, actively recruiting ROCKET-CLL trial, which is a phase III study aiming to compare the efficacy of rocbrutinib vs pirtobrutinib in patients with relapsed or refractory chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) who have been pretreated with Bruton tyrosine kinase covalent inhibitors (Abstract TPS7100).
For more information about the trial, visit ClinicalTrials.gov (identifier NCT07342478).
The ASCO Post Staff
Jame Abraham, MD, FACP, of Cleveland Clinic, provides an update on the DESTINY-Breast05 trial, which is an ongoing phase III trial investigating postneoadjuvant trastuzumab deruxtecan (T-DXd) as compared with trastuzumab emtansine (T-DM1) in patients with HER2-positive breast cancer with residual invasive disease and node-positive disease at surgery or inoperable disease at diagnosis. Dr. Abraham makes special note of rates of interstitial lung disease seen in the trial and methods of management.
The ASCO Post Staff
Jame Abraham, MD, FACP, of Cleveland Clinic, offers his thoughts on findings from OPTIMA (Optimal Personalised Treatment of early breast cancer using Multi-parameter Analysis), an international randomized controlled trial comparing chemotherapy decisions made with the Prosigna (PAM50) gene expression test with standard treatment in mostly node-positive patients with high clinical risk ER-positive HER2-negative early breast cancer (Abstract 500).
The ASCO Post Staff
Bjorn Henning Gronberg, MD, PhD, of St. Olav’s Hospital, discusses findings from a phase III trial of concurrent thoracic radiotherapy (TRT) plus platinum/etoposide chemotherapy and the PD-L1 inhibitor durvalumab in patients with extensive-stage small cell lung cancer (SCLC) (Abstract LBA8005).
The ASCO Post Staff
Evan T. Hall, MD, of Fred Hutchinson Cancer Center, discusses findings from the randomized phase II MATRiX trial, which evaluated the efficacy of the ATR inhibitor tuvusertib with or without avelumab in patients with anti–PD-(L)1–refractory Merkel cell carcinoma (Abstract LBA9514).
