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NCT07085767 · ClinicalTrials.gov registry record · Phase 3

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

A Phase 3 study of Breast Cancer and Metastatic Breast Cancer, sponsored by Olema Pharmaceuticals.

Recruiting
Registry status
Phase 3
Development phase
1,000
Enrollment target
20
Study locations

NCT07085767: Recruiting Phase 3 study of Breast Cancer and Metastatic Breast Cancer, sponsored by Olema Pharmaceuticals.

NCT07085767 is a Phase 3 study of Breast Cancer and Metastatic Breast Cancer that is actively recruiting participants, run by Olema Pharmaceuticals. The registered enrollment target is 1,000 participants, below the 2,802-participant average among 1,224 other Breast Cancer trials with a reported enrollment target (64% lower). The trial reports 20 study locations across 17 states. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT07085767, a Phase 3 study of Breast Cancer and Metastatic Breast Cancer, is actively recruiting participants, sponsored by Olema Pharmaceuticals.

RECRUITING
Registry status
Phase 3
Development phase
1,000 participants
Enrollment target
20
Study locations

Study Summary

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.

Primary Outcome

To compare PFS, based on a local investigator assessment, between investigational (palazestrant with ribociclib + letrozole-matching placebo) and control (letrozole with ribociclib + palazestrant-matching placebo) arms.

Interventions

  • DRUG Letrozole
  • DRUG Ribociclib
  • DRUG Palazestrant
  • DRUG Letrozole-matching placebo
  • DRUG Palazestrant matching-placebo

Study Locations (20)

Victoria

  • Clinical Trial Site - Clayton
  • Clinical Trial Site - Geelong
  • Clinical Trial Site - Heidelberg

New South Wales

  • Clinical Trial Site - Sydney
  • Clinical Trial Site - Waratah

Colorado

  • Clinical Trial Site - Denver

Iowa

  • Clinical Trial Site - Ames

Maine

  • Clinical Trial Site - Scarborough

Missouri

  • Clinical Trial Site - Kansas City

New Mexico

  • Clinical Trial Site - Santa Fe

Ohio

  • Clinical Trial Site - Columbus

Trial Details

FieldValue
Enrollment Target 1,000 participants
Start Date 2025-11-03
Est. Completion 2032-01
Phase Phase 3
Olema Pharmaceuticals

5 total trials

What NCT07085767 shows while recruiting

NCT07085767 is an interventional study that assigns participants to a tested intervention. Its 1,000 participants enrollment target places it among the larger protocols in the corpus, below the 2,802-participant average among 1,224 other Breast Cancer trials with a reported enrollment target (64% lower).

The record links to 5 conditions, with Breast Cancer appearing as the primary indexed condition, and to 5 interventions - of which Letrozole is the first listed.

NCT07085767 names 20 study sites across 17 states, led by Victoria, New South Wales, Colorado.

Frequently Asked Questions

What is clinical trial NCT07085767 about?

NCT07085767 is a clinical study titled "Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer". 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.

What is the current status of trial NCT07085767?

This trial is currently recruiting. It is a Phase 3 study. The enrollment target is 1,000 participants. The study started on 2025-11-03. Estimated completion is 2032-01.

What conditions does trial NCT07085767 study?

This clinical trial studies the following conditions: Breast Cancer, Metastatic Breast Cancer, HER2-Negative Breast Carcinoma, ER Positive Breast Cancer, Locally Advanced Breast Cancer.

What interventions are being tested in trial NCT07085767?

The interventions under investigation include: Letrozole (DRUG), Ribociclib (DRUG), Palazestrant (DRUG), Letrozole-matching placebo (DRUG), Palazestrant matching-placebo (DRUG).

Who is sponsoring clinical trial NCT07085767?

This trial is sponsored by Olema Pharmaceuticals, which has 5 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT07085767 being conducted?

This trial has 20 study locations across Colorado, Iowa, Maine, Missouri, New Mexico. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Breast Cancer

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT07085767's enrollment target sits among peer trials

1,000 120th of 1224 higher than 1,097 of 1,224 other Breast Cancer trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Breast Cancer trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT07085767, the US trial registry maintained by the National Library of Medicine. NCT07085767 (large enrollment · wide site footprint · recruiting) retrieved and formatted by PlainTrial, see methodology.