Announcements Trials
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Phase

Phase 2 5Phase EARLY_PHASE1 1

Status

Recruiting 3Active not recruiting 2Completed 1

Sponsor Class

OTHER 5NIH 1

Study Type

Interventional 6

Sponsor

Cancer Type

Breast 6Gynecologic 1

Conditions

Breast Neoplasms 4HER2/Neu Negative 1Anatomic Stage IV Breast Cancer AJCC v8 1

Interventions

Paclitaxel 162Fulvestrant 157Trastuzumab 156pembrolizumab 146Letrozole 137Carboplatin 118Capecitabine 105pertuzumab 104Specimen Handling 102Cyclophosphamide 102Anastrozole 90palbociclib 86abemaciclib 82Magnetic Resonance Spectroscopy 81exemestane 76Docetaxel 76Tamoxifen 75ribociclib 74trastuzumab deruxtecan 70Radiotherapy 62Biopsy 59Surveys and Questionnaires 56Gemcitabine 53130-nm albumin-bound paclitaxel 53olaparib 52sacituzumab govitecan 51Blood Specimen Collection 51Standard of Care 49Taxes 48eribulin 47

Date Range

30 days90 days1 yearAll

Options

Has results Has announcements

Clinical Trials

6 trials
RecentStart dateEnrollment
16-fluoroestradiol × Breast × 1 year × Clear all
NCT02398773 2026-04-21

FES PET/CT in Predicting Response in Patients With Newly Diagnosed Metastatic Breast Cancer Receiving Endocrine Therapy

National Cancer Institute (NCI)

Phase 2 Active not recruiting
99 enrolled
Breast

HER2/Neu Negative

NCT07112053 2026-04-06

A Vaccine (STEMVAC) With Standard Endocrine-Based Therapy or Chemotherapy for the Treatment of Metastatic Hormone Receptor Positive, HER2 Negative Breast Cancer

University of Washington

Phase 2 Recruiting
40 enrolled
Breast

Anatomic Stage IV Breast Cancer AJCC v8

NCT05659797 2026-02-27

FES BPET-DBT in Newly Diagnosed Breast Cancer

Abramson Cancer Center at Penn Medicine

Phase EARLY_PHASE1 Recruiting
20 enrolled
Breast

Breast Neoplasms

NCT04692103 2026-01-22

Serial FES PET/CT to Measure Hormone Expression in Patients Undergoing Endocrine Targeted Therapy

University of Washington

Phase 2 Active not recruiting
2 enrolled 8 charts
Breast

Breast Neoplasms

NCT06260033 2025-10-06

Stereotactic Body Radiation Therapy and FES PET/CT Imaging for the Treatment of Oligoprogressive Estrogen Receptor Positive Metastatic Breast Cancer

City of Hope Medical Center

Phase 2 Recruiting
18 enrolled
Breast

Breast Neoplasms

NCT02409316 2025-08-08

[18F]FES PET/CT in Endocrine Refractory Breast Cancer

University of Pennsylvania

Phase 2 Completed
6 enrolled
Breast

Breast Neoplasms

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