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ClinicalTrials.gov public records Last synced Oct 21, 2026, 7:12 AM EDT

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Showing 1–24 of 341 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Estrogen Antagonists Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Buccal Estrogen in Toothpaste Study: Systemic Absorption of Estradiol When Administered Mixed With Toothpaste in Postmenopausal or Surgically Menopausal Women

NCT00029757
View directory record Official record
Conditions
Menopause, Postmenopause
Interventions
Estrogen
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
35 Years to 75 Years · Female only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2005 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sex Steroids, Sleep, and Metabolic Dysfunction in Women

NCT00805207
View directory record Official record
Conditions
Polycystic Ovary Syndrome (PCOS), Obstructive Sleep Apnea, Obesity
Interventions
Progesterone, testosterone, glucocorticoid, continuous positive airway pressure, Estrogen, Control
Drug · Device · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Oct 21, 2026, 7:12 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Women's Health Initiative Memory Study (The WHIMS Study)

NCT00685009
View directory record Official record
Conditions
Dementia Syndromes
Interventions
Estrogen hormone therapy, Estrogen plus progesterone hormone therapy, Placebo
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
65 Years to 79 Years · Female only
Enrollment
7,525 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1996 – 2008
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 19, 2015 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Estrogen Dosing in Turner Syndrome: Pharmacology and Metabolism

NCT00837616
View directory record Official record
Conditions
Turner Syndrome, Hypogonadism, Premature Ovarian Failure
Interventions
17 B estradiol orally, 17 B estradiol
Drug
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
13 Years to 20 Years · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
2
States / cities
Jacksonville, Florida • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 16, 2023 · Synced Oct 21, 2026, 7:12 AM EDT
Terminated Phase 2 Interventional Results available

Estrogen for Triple Negative Breast Cancer

NCT01083641
View directory record Official record
Conditions
Female Breast Cancer
Interventions
Estradiol
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 9, 2019 · Synced Oct 21, 2026, 7:12 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Polycystic Ovary Syndrome (PCOS) and Sleep Apnea

NCT00203996
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Obstructive Sleep Apnea
Interventions
continuous positive airway pressure (CPAP), depot leuprolide plus estrogen/progestin replacement, pioglitazone, REM frag, SWS supp
Device · Drug · Procedure
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 40 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 21, 2023 · Synced Oct 21, 2026, 7:12 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Premarin Versus Toviaz for Treatment of Overactive Bladder

NCT01613170
View directory record Official record
Conditions
Overactive Bladder
Interventions
Toviaz, Premarin, Placebo cream
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
30 Years to 100 Years · Female only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
1
States / cities
Weston, Florida
Source: ClinicalTrials.gov public record
Updated Apr 20, 2017 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Not applicable Interventional Results available

Effect of Metformin on Sensitivity of the GnRH Pulse Generator to Suppression by Estradiol and Progesterone

NCT01427595
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Hyperandrogenism
Interventions
Metformin, Progesterone, estrace
Drug
Lead sponsor
University of Virginia
Other
Eligibility
10 Years to 17 Years · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 8, 2021 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Menopause Effects on Vascular Function

NCT03236545
View directory record Official record
Conditions
Cardiovascular Risk Factor
Interventions
No to Low Endogenous Estrogen, Estradiol
Other
Lead sponsor
University of Delaware
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Nov 14, 2022 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 1 Interventional

First-in-Human Dose Escalation Trial in Subjects With Advanced Malignancies

NCT01971515
View directory record Official record
Conditions
Solid Tumor
Interventions
MSC2363318A, MSC2363318A plus Trastuzumab, MSC2363318A plus Tamoxifen
Drug
Lead sponsor
EMD Serono
Industry
Eligibility
18 Years and older
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
15
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2018 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 2 Interventional

Alzheimer's Disease and Aging: Therapeutic Potential of Estrogen

NCT00018343
View directory record Official record
Conditions
Alzheimer's Disease
Interventions
estrogen
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
50 Years to 90 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2001
U.S. locations
1
States / cities
Lakewood, Washington
Source: ClinicalTrials.gov public record
Updated Jan 21, 2009 · Synced Oct 21, 2026, 7:12 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Advancing Postmenopausal Preventive Therapy

NCT04103476
View directory record Official record
Conditions
Atherosclerosis, Cognitive Decline
Interventions
Oral bazedoxifene 20 mg / conjugated estrogens 0.45 mg, Placebo
Combination Product · Other
Lead sponsor
University of Southern California
Other
Eligibility
45 Years to 59 Years · Female only
Enrollment
385 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 4 Interventional Results available

Unique Effects of Perimenstrual Estradiol or Progesterone Supplementation on Perimenstrual Suicidality

NCT03498313
View directory record Official record
Conditions
Suicidal Ideation
Interventions
Transdermal Estradiol + Placebo, Oral Micronized Progesterone + Placebo, Placebos
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 14, 2022 · Synced Oct 21, 2026, 7:12 AM EDT
Terminated Phase 1 Interventional

Study of the Kinesin Oral Molecular Degrader BBI-940 in Subjects With Advanced or Metastatic Breast Cancer

NCT07408089
View directory record Official record
Conditions
Breast Cancer, Metastatic Breast Cancer, Advanced Breast Cancer
Interventions
BBI-940, Fulvestrant
Drug
Lead sponsor
Boundless Bio, Inc.
Industry
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
8
States / cities
Los Angeles, California • Lake Success, New York • Austin, Texas + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 21, 2026, 7:12 AM EDT
Not listed Phase 2 Interventional

Estrogen Modulation of Mood and Cognition Following Monoaminergic Depletion in Post-Menopausal Women

NCT00005768
View directory record Official record
Conditions
Menopause
Interventions
Estrogen
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
50 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Not applicable Interventional Results available

Effects of Growth Hormone Administration on Cardiovascular Risk in Cured Acromegalics With Growth Hormone Deficiency

NCT00182091
View directory record Official record
Conditions
Acromegaly, Growth Hormone Deficiency, Pituitary Disease
Interventions
Recombinant human growth hormone, Saline
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 2 Interventional Results available

Resuscitative Endocrinology:Single-dose Clinical Uses for Estrogen-Traumatic Brain Injury

NCT00973674
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Premarin IV, Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 12, 2019 · Synced Oct 21, 2026, 7:12 AM EDT
Active, not recruiting Phase 2 Interventional

Study of Belzutifan (MK-6482) Plus Fulvestrant for ER+/HER2- Metastatic Breast Cancer (MK-6482-029/LITESPARK-029)

NCT06428396
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Belzutifan, Fulvestrant, Everolimus, Exemestane
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
14
States / cities
Goodyear, Arizona • Beverly Hills, California • La Jolla, California + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 2 Interventional Results available

Paclitaxel, Cyclophosphamide & Doxorubicin, Autologous Dendritic Cells & Surgery in Stage II/III Breast Cancer (Women)

NCT00499083
View directory record Official record
Conditions
Breast Cancer
Interventions
therapeutic autologous dendritic cells, aromatase inhibition therapy, cyclophosphamide, doxorubicin hydrochloride, paclitaxel, tamoxifen citrate, gene expression analysis, protein expression analysis, reverse transcriptase-polymerase chain reaction, immunoenzyme technique, immunohistochemistry staining method, laboratory biomarker analysis, adjuvant therapy, biopsy, conventional surgery, neoadjuvant therapy, radiation therapy
Biological · Drug · Genetic + 3 more
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 120 Years · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
2
States / cities
Tampa, Florida • Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 29, 2023 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 2 Interventional Results available

The Effect of Hormonal Add-Back Therapy in Adolescents Treated With a GnRH Agonist for Endometriosis: A Randomized Trial

NCT00474851
View directory record Official record
Conditions
Endometriosis
Interventions
Norethindrone acetate + estrogens, norethindrone acetate + placebo
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
13 Years to 22 Years · Female only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 30, 2015 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Topical Estriol for Vaginal Health

NCT00908570
View directory record Official record
Conditions
Vaginal Health
Interventions
estriol, Placebo
Drug
Lead sponsor
Gynuity Health Projects
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
2
States / cities
Los Angeles, California • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 4, 2011 · Synced Oct 21, 2026, 7:12 AM EDT
Active, not recruiting Phase 3 Interventional Results available

Comparison of Fulvestrant (FASLODEX™) 250 mg and 500 mg in Postmenopausal Women With Oestrogen Receptor Positive Advanced Breast Cancer Progressing or Relapsing After Previous Endocrine Therapy.

NCT00099437
View directory record Official record
Conditions
Breast Cancer
Interventions
Fulvestrant
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
45 Years to 130 Years · Female only
Enrollment
736 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2026
U.S. locations
14
States / cities
Casa Grande, Arizona • Fountain Valley, California • New Britain, Connecticut + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Not applicable Interventional Results available

Mirena and Estrogen for Control of Perimenopause Symptoms and Ovulation Suppression

NCT01613131
View directory record Official record
Conditions
Menopausal and Other Perimenopausal Disorders
Interventions
Mirena, Estradiol, Placebo Gel
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
40 Years to 52 Years · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced Oct 21, 2026, 7:12 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

T-IR- Study to Understand the Effects of Testosterone and Estrogen on the Body's Response to the Hormone Insulin

NCT01686828
View directory record Official record
Conditions
Insulin Resistance, Type 2 Diabetes Mellitus, Obesity, Androgen Deficiency, Metabolic Disease
Interventions
Acyline, Testosterone 1.62% gel, Letrozole, Placebo gel (for Testosterone 1.62% gel), Placebo pill (for Letrozole)
Drug
Lead sponsor
University of Washington
Other
Eligibility
25 Years to 55 Years · Male only
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Oct 21, 2026, 7:12 AM EDT