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ClinicalTrials.gov public records Last synced Oct 3, 2026, 8:10 PM EDT

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Showing 25–47 of 47 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Estradiol (E2) Clear all
Completed Phase 3 Interventional Results available

Low-dose Hormone Therapy for Relief of Vasomotor Symptoms

NCT00446199
View directory record Official record
Conditions
Vasomotor Symptoms, Hot Flashes
Interventions
0.5mg DRSP / 0.5mg E2 (BAY86-4891), 0.25mg DRSP / 0.5mg E2 (BAY86-4891), Estradiol (E2 0.3mg), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
40 Years and older · Female only
Enrollment
735 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
76
States / cities
Mobile, Alabama • Chandler, Arizona • Phoenix, Arizona + 64 more
Source: ClinicalTrials.gov public record
Updated May 6, 2015 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 2 Interventional Results available

Investigation of a Long-Acting Follicle Stimulating Hormone in Infertile Women Undergoing Assisted Reproductive Technology (ART)

NCT00505752
View directory record Official record
Conditions
Infertility
Interventions
AS900672-Enriched 50 microgram (mcg), AS900672-Enriched 100 mcg, AS900672-Enriched 150 mcg, Follitropin alfa 150 international unit (IU), Recombinant human chorionic gonadotropin (r-hCG)
Drug
Lead sponsor
Merck KGaA, Darmstadt, Germany
Industry
Eligibility
18 Years to 36 Years · Female only
Enrollment
520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Rockland, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Race on Gonadotropin Responses

NCT00455962
View directory record Official record
Conditions
Premenopause, Healthy
Interventions
Estradiol steroid infusion, Progesterone steroid infusion
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 27, 2017 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study of Efficacy, Cycle Control, and Safety of a NES-E2 Contraceptive Vaginal Ring

NCT03432416
View directory record Official record
Conditions
Healthy Women, Female Contraception
Interventions
NES-E2 CVR
Drug
Lead sponsor
Premier Research
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
385 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
11
States / cities
Los Angeles, California • Sacramento, California • Aurora, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2025 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women (Replicate Study)

NCT02691494
View directory record Official record
Conditions
Uterine Fibroids, Heavy Menstrual Bleeding
Interventions
Elagolix, Placebo for Estradiol/Norethindrone Acetate, Estradiol/Norethindrone Acetate, Placebo for Elagolix
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 51 Years · Female only
Enrollment
378 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
103
States / cities
Birmingham, Alabama • Dothan, Alabama • Fairhope, Alabama + 89 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2021 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 3 Interventional Results available

Study of the Safety and Contraceptive Efficacy of Relugolix Combination Therapy in Women With Uterine Fibroids or Endometriosis Who Are at Risk for Pregnancy

NCT04756037
View directory record Official record
Conditions
Contraception
Interventions
Relugolix Combination Therapy
Drug
Lead sponsor
Sumitomo Pharma Switzerland GmbH
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
1,164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
109
States / cities
Mobile, Alabama • Chandler, Arizona • Mesa, Arizona + 89 more
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sex Hormones and Orthostatic Tolerance

NCT01153581
View directory record Official record
Conditions
Orthostatic Intolerance
Interventions
Ganirelix acetate, 17β-Oestradiol, Progesterone
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 34 Years · Female only
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 13, 2018 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 3 Interventional Results available

Long-Term Safety Study of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women

NCT03271489
View directory record Official record
Conditions
Heavy Menstrual Bleeding, Uterine Fibroids
Interventions
Elagolix, Estradiol /norethindrone acetate (E2/NETA), E2/NETA Placebo, Elagolix Placebo
Drug · Other
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
478 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
155
States / cities
Birmingham, Alabama • Dothan, Alabama • Fairhope, Alabama + 112 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2025 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Progesterone Amplifies Estrogen-stimulated Growth Hormone Secretion in Older Women

NCT02272647
View directory record Official record
Conditions
Healthy
Interventions
IM Saline Placebo (0.25 ml), IM Estradiol valerate (2.5 mg), IM Saline Placebo (0.5 ml), IM Estradiol valerate (5.0 mg), Oral Micronized Progesterone, Oral Placebo, Ghrelin (0.3 ug/kg), Medroxyprogesterone - Acetate
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
50 Years to 80 Years · Female only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 22, 2018 · Synced Oct 3, 2026, 8:10 PM 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 3, 2026, 8:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Ovarian Hormone Suppression on Vascular and Cognitive Function

NCT03112226
View directory record Official record
Conditions
Cognitive Impairment, Estrogen Deficiency, Menopause, Endothelial Dysfunction, Vascular Stiffness
Interventions
GnRHant + E2, GnRHant + Placebo
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Aurora, Colorado • Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Impact of Estradiol Addback

NCT01862835
View directory record Official record
Conditions
Normal Healthy Volunteers
Interventions
Degarelix, Testosterone, Anastrozole, Estrogen patch
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
60 Years to 80 Years · Male only
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 7, 2019 · Synced Oct 3, 2026, 8:10 PM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

TranspulmonarY Estrogen Gradient and Estrogen Receptors (TYEGER) in PAH

NCT04280523
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
ESR-specific PET scan
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
13 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 3, 2025 · Synced Oct 3, 2026, 8:10 PM 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 3, 2026, 8:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Early Menopause Hormone Treatment and Cognition

NCT01046643
View directory record Official record
Conditions
Menopausal Syndrome
Interventions
Estradiol (E2), Progesterone (P10) x90, Progesterone (P10) x10
Drug
Lead sponsor
University of Michigan
Other
Eligibility
45 Years to 55 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Oct 3, 2026, 8:10 PM EDT
Terminated Phase 3 Interventional Results available

A Study to Evaluate Safety and Efficacy of Elagolix in Participants With Endometriosis With Associated Moderate to Severe Pain

NCT03343067
View directory record Official record
Conditions
Endometriosis
Interventions
elagolix, estradiol/norethindrone acetate (E2/NETA)
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 49 Years · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
37
States / cities
Anniston, Alabama • Tucson, Arizona • Little Rock, Arkansas + 30 more
Source: ClinicalTrials.gov public record
Updated Nov 27, 2019 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Phase 2, Dose-finding, Cross-over Study to Evaluate the Effect of a NES/E2 Transdermal Gel Delivery on Ovulation Suppression in Normal Ovulating Women

NCT00796133
View directory record Official record
Conditions
Ovulation
Interventions
NES/E2 gel
Drug
Lead sponsor
Population Council
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 17, 2015 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Menopausal Sleep Fragmentation and Body Fat Gain

NCT03047330
View directory record Official record
Conditions
Menopause
Interventions
Estradiol withdrawal, Fragmented sleep
Drug · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Oct 3, 2026, 8:10 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Optimizing Ovulation Induction in the Poor Responder

NCT01200537
View directory record Official record
Conditions
IVF Poor Responders
Interventions
Estradiol, Oral Contraceptive Pills (OCP)
Drug
Lead sponsor
Duke University
Other
Eligibility
20 Years to 50 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 21, 2012 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Early Phase 1 Interventional Results available

Neuroendocrine Risk for PTSD in Women

NCT03973229
View directory record Official record
Conditions
PTSD, Trauma
Interventions
Estradiol patch, Placebo patch
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Effects of Erythromycin on the Pharmacokinetics of Relugolix, Estradiol, and Norethindrone in Healthy Postmenopausal Women and on the Pharmacokinetics of Relugolix in Healthy Adult Men

NCT04714554
View directory record Official record
Conditions
Healthy
Interventions
Relugolix/E2/NETA FDC, Relugolix, Erythromycin
Drug
Lead sponsor
Myovant Sciences GmbH
Industry
Eligibility
18 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Hialeah, Florida
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Oct 3, 2026, 8:10 PM EDT
Recruiting Phase 3 Interventional

A Phase 3B Study to Evaluate Bone Mineral Density With Long-Term Use of Relugolix Combination Tablet in Women With Uterine Fibroids or Endometriosis

NCT05862272
View directory record Official record
Conditions
Uterine Fibroids, Endometriosis
Interventions
Relugolix Combination Tablet
Drug
Lead sponsor
Sumitomo Pharma Switzerland GmbH
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
120
States / cities
Mobile, Alabama • Chandler, Arizona • Mesa, Arizona + 98 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Oct 3, 2026, 8:10 PM EDT
Completed Phase 3 Interventional

SPIRIT 1: Efficacy and Safety Study of Relugolix in Women With Endometriosis-Associated Pain

NCT03204318
View directory record Official record
Conditions
Endometriosis Related Pain
Interventions
Relugolix, Estradiol/norethindrone acetate, Estradiol/norethindrone acetate placebo, Relugolix placebo
Drug
Lead sponsor
Myovant Sciences GmbH
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
638 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
43
States / cities
Dothan, Alabama • Mesa, Arizona • Scottsdale, Arizona + 37 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Oct 3, 2026, 8:10 PM EDT