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ClinicalTrials.gov public records Last synced Oct 22, 2026, 2:11 AM EDT

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Showing 1–24 of 135 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Estrogen Product Clear all
Completed Phase 2Phase 3 Interventional Results available

Adrenal and Gonadal Hormone Replacement in Anorexia Nervosa

NCT00310791
View directory record Official record
Conditions
Anorexia Nervosa
Interventions
Hormone replacement therapy (estrogen/progestin), Placebo (Sugar Pill), Dehydroepiandrosterone (DHEA)
Drug · Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
15 Years to 30 Years · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 11, 2018 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Pre-Exposure Prophylaxis (PrEP)- Gender Affirming Hormone Therapy (GAHT) Interactions in TGW

NCT04760691
View directory record Official record
Conditions
HIV, Prophylaxis, Transgender
Interventions
Truvada alone, Truvada plus Leuprolide 11.25mg intramuscular injection, Truvada plus Estradiol 1 mg, Truvada plus Estradiol 6 mg, Estradiol 6 mg alone
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 22, 2026, 2:11 AM EDT
Terminated Phase 2 Interventional Results available

Evaluation of Biomarkers Associated With Response to Subsequent Therapies in Subjects With HER2-Positive Metastatic Breast Cancer

NCT02213042
View directory record Official record
Conditions
Neoplasms, Breast
Interventions
Lapatinib, Trastuzumab, Aromatase Inhibitors (AIs)
Drug · Biological
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
3
States / cities
Mobile, Alabama • Boston, Massachusetts • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 13, 2021 · Synced Oct 22, 2026, 2:11 AM EDT
Not yet recruiting Phase 1Phase 2 Interventional

BRE-06: Study to Increase Tolerance to Aromatase Inhibitors for Patients With Early-Stage Hormone Receptor Positive Breast Cancer Who Developed Hypoactive Sexual Desire Disorder

NCT07596212
View directory record Official record
Conditions
Early-stage Breast Cancer, Hypoactive Sexual Desire Disorder, Hormone Receptor Positive Breast Carcinoma, Breast Cancer
Interventions
Aromatase Inhibitors, Bupropion, GnRH agonist
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 22, 2026, 2:11 AM EDT
Completed No phase listed Observational

The Clinical and Economic Impact of Pharmacogenomic Testing for Tamoxifen Metabolism in Postmenopausal Women Receiving Tamoxifen for Prevention of Recurrent Breast Cancer

NCT00830973
View directory record Official record
Conditions
Breast Neoplasms, Tamoxifen
Interventions
Poor Metabolism Status Follow Up Therapy Considerations, CYP2D6 Inhibiting Drugs
Other
Lead sponsor
Medco Health Solutions, Inc.
Industry
Eligibility
50 Years and older · Female only
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Franklin Lakes, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 14, 2009 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Treating Postmenopausal Dyspareunia Where it Hurts

NCT03240081
View directory record Official record
Conditions
Dyspareunia
Interventions
50mcg estradiol cream, 100mcg estradiol cream
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
40 Years to 70 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated May 22, 2023 · Synced Oct 22, 2026, 2:11 AM EDT
Completed No phase listed Observational

Study of Urine Samples From Women With Newly Diagnosed Breast Cancer Enrolled on Clinical Trial UNMC-08105

NCT00959244
View directory record Official record
Conditions
Breast Cancer
Interventions
high performance liquid chromatography, laboratory biomarker analysis, mass spectrometry, medical chart review
Other
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 1, 2023 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Estrogen Deficiency on Energy Expenditure

NCT01846728
View directory record Official record
Conditions
Obesity
Interventions
Estrogen suppression
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
20 Years to 40 Years · Female only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 3 Interventional Results available

Three Drug Combination Therapy Versus Conventional Treatment of Children With Congenital Adrenal Hyperplasia

NCT00001521
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia (CAH)
Interventions
Fludrocortisone, Hydrocortisone, Letrozole, Flutamide, Testolactone
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
2 Years to 18 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Erenumab (AMG 334) Plus Combined Oral Contraceptive Drug Interaction Study in Healthy Females

NCT02792517
View directory record Official record
Conditions
Headache, Migraine
Interventions
Erenumab, Ethynil Estradiol/Norgestimate Oral Contraceptive
Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
4
States / cities
Anaheim, California • Cypress, California • Dallas, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2018 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 2 Interventional Results available

Rapid Hormonal Cycling as Treatment for Patients With Prostate Cancer: The Men's Cycle

NCT00586898
View directory record Official record
Conditions
Prostate, Cancer, Hormonal Cycling
Interventions
GnRH, Ketoconazole, Bicalutamide, Testosterone transdermal gel, Estrogen transdermal patch
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 25, 2016 · Synced Oct 22, 2026, 2:11 AM EDT
Active, not recruiting Phase 1 Interventional

A Study of GDC-9545 Alone or in Combination With Palbociclib and/or Luteinizing Hormone-Releasing Hormone (LHRH) Agonist in Locally Advanced or Metastatic Estrogen Receptor-Positive Breast Cancer

NCT03332797
View directory record Official record
Conditions
Breast Cancer
Interventions
GDC-9545, Palbociclib, LHRH Agonist
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
6
States / cities
Aurora, Colorado • Boston, Massachusetts • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 3 Interventional Results available

A Trial to Compare the Efficacy and Safety of Once-weekly Lonapegsomatropin With Placebo and a Daily Somatropin Product in Adults With Growth Hormone Deficiency

NCT04615273
View directory record Official record
Conditions
Growth Hormone Deficiency, Endocrine System Diseases, Hormone Deficiency
Interventions
Lonapegsomatropin, Placebo, Somatropin
Drug · Other
Lead sponsor
Ascendis Pharma Endocrinology Division A/S
Industry
Eligibility
23 Years to 80 Years
Enrollment
264 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
23
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fresno, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 3 Interventional Results available

Effects of Growth Hormone on Cognition and Cerebral Metabolism in Adults With Growth Hormone Deficiency

NCT01007071
View directory record Official record
Conditions
Hypopituitarism
Interventions
Human Growth Hormone (1-134), Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 65 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Nov 17, 2017 · Synced Oct 22, 2026, 2:11 AM EDT
Recruiting Phase 3 Interventional

Evaluating the Addition of Adjuvant Chemotherapy to Ovarian Function Suppression Plus Endocrine Therapy in Premenopausal Patients With pN0-1, ER-Positive/HER2-Negative Breast Cancer and an Oncotype Recurrence Score Less Than or Equal to 25

NCT05879926
View directory record Official record
Conditions
Breast Cancer
Interventions
Ovarian Function Suppression + Aromatase Inhibitor, Adjuvant Chemotherapy + Ovarian Function Suppression
Drug
Lead sponsor
NRG Oncology
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
3,960 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2034
U.S. locations
1226
States / cities
Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 809 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 2 Interventional Results available

Tamoxifen Citrate in Treating Patients With Metastatic or Recurrent Breast Cancer

NCT01124695
View directory record Official record
Conditions
Breast Cancer, Stage IV Breast Cancer
Interventions
tamoxifen
Drug
Lead sponsor
ECOG-ACRIN Cancer Research Group
Network
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
292
States / cities
Birmingham, Alabama • Mobile, Alabama • Fort Smith, Arkansas + 203 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2023 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 3 Interventional Results available

Endometrial Safety Study

NCT00522873
View directory record Official record
Conditions
Postmenopause
Interventions
0.25mg DRSP / 0.5mg E2 (BAY86-4891), 0.5mg NETA / 1.0mg E2 (Activella)
Drug
Lead sponsor
Bayer
Industry
Eligibility
40 Years to 65 Years · Female only
Enrollment
662 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
17
States / cities
Chandler, Arizona • San Diego, California • Denver, Colorado + 13 more
Source: ClinicalTrials.gov public record
Updated Dec 31, 2014 · Synced Oct 22, 2026, 2:11 AM EDT
Recruiting Phase 2 Interventional

PhII Randomized CAPecitabine + ELAcestrant vs. Capecitabine Alone in ER+ Breast Cancer (CAPELA)

NCT07222215
View directory record Official record
Conditions
Estrogen-receptor-positive Breast Cancer, Metastatic Breast Cancer, Breast Cancer, Hormone Receptor Positive Breast Cancer, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, HER2- Breast Cancer, ESR1 Gene Mutation, ER Wildtype, Breast Neoplasms
Interventions
Capecitabine, Elacestrant
Drug
Lead sponsor
Kristina A. Fanucci
Other
Eligibility
18 Years and older
Enrollment
297 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 22, 2026, 2:11 AM EDT
Active, not recruiting No phase listed Observational

An Observational Study to Learn How Mirena and Other Progestogen Treatments Are Used for Endometrial Protection in Women 40+ With a Uterus in the United States Receiving Estrogen Therapy, and Their Respective Health Outcomes

NCT07795606
View directory record Official record
Conditions
Estrogen Therapy
Interventions
Estrogen therapy, Mirena levonorgestrel-releasing intrauterine system, Other progestogen therapy
Drug · Device
Lead sponsor
Bayer
Industry
Eligibility
40 Years and older · Female only
Enrollment
456,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
2
States / cities
Ann Arbor, Michigan • Eden Prairie, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 19, 2026 · Synced Oct 22, 2026, 2:11 AM EDT
Recruiting Early Phase 1 Interventional

FES Imaging to Optimize Tamoxifen for Metastatic Breast Cancer

NCT04174352
View directory record Official record
Conditions
ERα+ Breast Cancer, ESR1 Gene Mutation
Interventions
Tamoxifen, FES PET/CT
Drug · Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
19 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 22, 2026, 2:11 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 22, 2026, 2:11 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Roles of Estrogen and Progesterone in Heart Metabolism

NCT00565916
View directory record Official record
Conditions
Postmenopausal Syndrome
Interventions
Estrogen, Progesterone, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
55 Years to 75 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Raising Insulin Sensitivity in Post Menopause

NCT02274571
View directory record Official record
Conditions
Menopause
Interventions
TSEC (Tissue-selective estrogen complexes), Placebo
Drug · Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
50 Years to 60 Years · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Oct 22, 2026, 2:11 AM EDT
Completed Phase 2 Interventional

Evaluation of Lasofoxifene Versus Fulvestrant in Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 Mutation

NCT03781063
View directory record Official record
Conditions
Locally Advanced or Metastatic Breast Cancer
Interventions
Lasofoxifene, Fulvestrant
Drug
Lead sponsor
Sermonix Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
42
States / cities
Phoenix, Arizona • Yuma, Arizona • Duarte, California + 36 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 22, 2026, 2:11 AM EDT