← Eichor
Study identifier: NCT07085767 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

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

Condition: Breast Cancer · Locally Advanced Breast Cancer · Metastatic Breast Cancer  ·  Sponsor: Olema Pharmaceuticals, Inc.

PhasePhase 3
Planned participants1000
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

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.

This description comes directly from the study's public registry record.

Talk to the study team

Olema Pharmaceuticals, Inc.  ·  415-651-7206  ·  OPERA-02@olema.com

Always discuss trial participation with your own doctor first.

Locations (167)

Clinical Trial SiteHot Springs, Arkansas, United StatesActive Not Recruiting
Clinical Trial SiteBeverly Hills, California, United StatesActive Not Recruiting
Clinical Trial SiteLa Jolla, California, United StatesActive Not Recruiting
Clinical Trial SiteLos Alamitos, California, United StatesActive Not Recruiting
Clinical Trial SiteSan Francisco, California, United StatesRecruiting
Clinical Trial SiteSanta Barbara, California, United StatesActive Not Recruiting
Clinical Trial SiteAurora, Colorado, United StatesActive Not Recruiting
Clinical Trial SiteDenver, Colorado, United StatesRecruiting
Clinical Trial SiteNew Haven, Connecticut, United StatesActive Not Recruiting
Clinical Trial SiteTampa, Florida, United StatesRecruiting
Clinical Trial SiteMarietta, Georgia, United StatesRecruiting
Clinical Trial SiteHonolulu, Hawaii, United StatesRecruiting

+ 155 more locations — full list on the registry record.

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT07085767