Olema Oncology to Present Trial-in-Progress Poster for Phase 3 OPERA-02 Trial of Palazestrant Plus Ribociclib at SABCS 2025

On October 30, 2025 Olema Pharmaceuticals, Inc. ("Olema" or "Olema Oncology", Nasdaq: OLMA), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of targeted therapies for breast cancer and beyond, reported it will present a trial-in-progress poster for the Phase 3 OPERA-02 trial at the 2025 San Antonio Breast Cancer Symposium (SABCS 2025) taking place December 9-12, 2025 in San Antonio, TX. The trial is evaluating palazestrant in combination with ribociclib in frontline estrogen receptor-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) advanced or metastatic breast cancer.

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Poster Presentation Details
Title: OPERA-02: a phase 3 randomized, double-blind, active-controlled study of palazestrant with ribociclib versus letrozole with ribociclib for the first-line treatment of ER+, HER2- advanced breast cancer
Abstract Number: 264
Presentation Number: PS5-12-18
Date/Time: Friday, December 12, 2025 from 12:30pm–2:00pm CT / 1:30pm–3:00pm ET

Additional information can be found on the SABCS website. A copy of the poster will be made available on the Publications page of Olema’s website in alignment with the SABCS 2025 embargo policy.

(Press release, Olema Oncology, OCT 30, 2025, View Source [SID1234657163])