Reported Saturday, Olema Oncology Reports 15.5-Month Median Progression-Free Survival With Palazestrant Plus Ribociclib In ER-Positive, HER2-Negative Metastatic Breast Cancer At ESMO 2025
Author: Benzinga Newsdesk | October 20, 2025 04:26am
Palazestrant in combination with ribociclib demonstrated encouraging activity across all dose cohorts and subgroups
Median PFS was 15.5 months in the 120 mg palazestrant cohort across all patients
In the 120 mg palazestrant cohort among patients with prior CDK4/6i treatment, median PFS was 9.2 months in patients with ESR1 wild-type tumors and 13.8 months in patients with ESR1 mutant tumors
Combination continues to demonstrate favorable tolerability and a safety profile consistent with the known profiles of each drug
Data support the ongoing Phase 3 OPERA-02 trial of palazestrant in combination with ribociclib in frontline advanced or metastatic breast cancer