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Clinical Trial ● Currently Recruiting Phase III NCT07085767

Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer

Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer — Recruiting • Phase III • Oncology • NCT07085767.

📅 16 Apr 2026 ⏱ 2 min read
Currently Recruiting
This trial is actively seeking participants in the UK. Discuss eligibility with your patient before referring.
Status
Currently Recruiting
Phase
Phase III
NCT ID
NCT07085767
Sponsor
Olema Pharmaceuticals, Inc.
Start
2025-11-03
ClinicaliQ Trial Snapshot
  • Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer — Recruiting • Phase III • Oncology • NCT07085767.
  • What is being tested: Palazestrant (an oral selective oestrogen receptor degrader) combined with ribociclib (CDK4/6 inhibitor) versus the standard treatment of letrozole (aromatase inhibitor) with ribociclib as first-line therapy for ER+/HER2- advanced breast cancer.
  • Patient eligibility overview: Women and men with ER+/HER2- advanced breast cancer who have not received any prior systemic anti-cancer treatment, representing a treatment-Phase IIIïve population requiring first-line intervention.
Use This Page For
  • Quick orientation before opening the registry record.
  • Checking recruitment status, phase and sponsor at a glance.
  • Connecting this trial to nearby guidelines, Drug Science and education.
What This Trial Is Studying

This phase 3 clinical trial compares the efficacy and safety of palazestrant with ribociclib to letrozole and ribociclib in women and men who have not received prior systemic anti-cancer treatment for advanced breast cancer.

Eligibility Snapshot
  • : * Adult female or male participants. * ER+, HER2- locally advanced or metastatic breast cancer that is not amenable to curative therapy. * Evaluable disease (measurable disease per RECIST 1.1 or bone-only disease). * De novo advanced breast cancer or with disease recurrence occurring after 12 months of completing adjuvant endocrine therapy (with or without CDK4/6 inhibitors) * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. * Adequate hematologic, hepatic, and renal functions. * Female participants can be pre-, peri- or postmenopausal. * Male and pre- or peri-menopausal female participants must be willing to take a GnRH (or LHRH) agonist.

Use the source registry for the full inclusion and exclusion criteria before discussing referral or enrolment.

Full Trial Details
View this trial on the source registry
Eligibility criteria, protocol, and results when available
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