Estradiol in Treating Patients With ER Beta Positive, Triple Negative Locally Advanced or Metastatic Breast Cancer
Public ClinicalTrials.gov record NCT03941730. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Therapeutic Targeting of ER Beta in Triple Negative Breast Cancer
Study identification
- NCT ID
- NCT03941730
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- Mayo Clinic
- Other
- Enrollment
- 8 participants
Conditions and interventions
Conditions
Interventions
- Biopsy Procedure
- Computed Tomography Procedure
- Magnetic Resonance Imaging Procedure
- Positron Emission Tomography Procedure
- Therapeutic Estradiol Biological
Procedure · Biological
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- Female
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 27, 2019
- Primary completion
- Jul 28, 2024
- Completion
- Dec 30, 2026
- Last update posted
- May 11, 2026
2019 – 2026
United States locations
- U.S. sites
- 9
- U.S. states
- 8
- U.S. cities
- 8
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Alabama at Birmingham Cancer Center | Birmingham | Alabama | 35233 | — |
| UCSF Medical Center-Mission Bay | San Francisco | California | 94158 | — |
| MedStar Georgetown University Hospital | Washington D.C. | District of Columbia | 20007 | — |
| Mayo Clinic in Florida | Jacksonville | Florida | 32224-9980 | — |
| University of Chicago Comprehensive Cancer Center | Chicago | Illinois | 60637 | — |
| Mayo Clinic in Rochester | Rochester | Minnesota | 55905 | — |
| Montefiore Medical Center-Einstein Campus | The Bronx | New York | 10461 | — |
| FHCC South Lake Union | Seattle | Washington | 98109 | — |
| University of Washington Medical Center - Montlake | Seattle | Washington | 98195 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03941730, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 11, 2026 · Synced May 20, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03941730 live on ClinicalTrials.gov.