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ClinicalTrials.gov public records Last synced Oct 7, 2026, 10:48 AM EDT

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Showing 49–71 of 71 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Estradiol or Placebo Clear all
Not listed Early Phase 1 Interventional Accepts healthy volunteers

Androgen Blockade and Progesterone Augmentation of Gonadotropin Secretion

NCT04597099
View directory record Official record
Conditions
PCOS, Polycystic Ovary Syndrome
Interventions
Micronized progesterone, Placebo, Flutamide, Estradiol patch
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 2, 2023 · Synced Oct 7, 2026, 10:48 AM EDT
Terminated Phase 2 Interventional Results available

Maintaining Suppression of Testosterone With Transdermal Estradiol Gel

NCT02349386
View directory record Official record
Conditions
Cancer of the Prostate
Interventions
BHR-200 (0.36% transdermal 17β-estradiol gel), Placebo
Drug
Lead sponsor
BHR Pharma, LLC
Industry
Eligibility
18 Years and older · Male only
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
12
States / cities
Tucson, Arizona • Aventura, Florida • Daytona Beach, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Aging and Estrogen on Cortical Function

NCT01268046
View directory record Official record
Conditions
Memory Loss, Cognitive Changes, Postmenopausal Symptoms
Interventions
Estradiol oral capsule, transderman estrogen patch, trasdermal placebo patch, placebo oral capsule
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
45 Years to 80 Years · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 22, 2018 · Synced Oct 7, 2026, 10:48 AM EDT
Terminated Phase 3 Interventional Results available

A Study of Taselisib + Fulvestrant Versus Placebo + Fulvestrant in Participants With Advanced or Metastatic Breast Cancer Who Have Disease Recurrence or Progression During or After Aromatase Inhibitor Therapy

NCT02340221
View directory record Official record
Conditions
Breast Cancer
Interventions
Taselisib, Placebo, Fulvestrant
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older · Female only
Enrollment
631 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
16
States / cities
Tucson, Arizona • Atlanta, Georgia • Marietta, Georgia + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2022 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 3 Interventional

The Effect of Androgen and Growth Hormone on Height and Learning in Girls With Turner Syndrome

NCT00029159
View directory record Official record
Conditions
Turner Syndrome
Interventions
estrogen, androgen, placebo
Drug · Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
10 Years to 14 Years · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1992 – 2012
U.S. locations
2
States / cities
Bethesda, Maryland • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 5, 2012 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess CYP3A4 Modulator, Oral Contraceptive, and pH Modifier Drug Interactions for ABI-H2158 in Healthy Adults

NCT04142762
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
ABI-H2158, Itraconazole, Rifampin, Midazolam, Ethinyl Estradiol / Levonorgestrel, Esomeprazole, Placebo matching oral contraceptive
Drug
Lead sponsor
Assembly Biosciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 2 Interventional Results available

Letrozole in Preventing Breast Cancer in Postmenopausal Women

NCT00090857
View directory record Official record
Conditions
Breast Cancer
Interventions
Letrozole, Placebo
Drug · Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
35 Years to 120 Years · Female only
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2013
U.S. locations
5
States / cities
Boston, Massachusetts • Philadelphia, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 30, 2018 · Synced Oct 7, 2026, 10:48 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 7, 2026, 10:48 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effects of Anorexia Nervosa on Peak Bone Mass

NCT01301183
View directory record Official record
Conditions
Anorexia Nervosa
Interventions
RhIGF-1 with transdermal 17-beta estradiol, Placebo and transdermal 17-beta estradiol
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
14 Years to 22 Years · Female only
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 13, 2021 · Synced Oct 7, 2026, 10:48 AM EDT
Recruiting Phase 3 Interventional

Topical Estrogen: Brief Intervention to Improve Postoperative Experience for Transgender Men Undergoing Hysterectomy

NCT06969326
View directory record Official record
Conditions
Postoperative Bleeding, Gender Dysphoria, Hysterectomy
Interventions
Use of topical estradiol, No intervention
Drug · Other
Lead sponsor
Women and Infants Hospital of Rhode Island
Other
Eligibility
18 Years and older · Female only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated May 13, 2025 · Synced Oct 7, 2026, 10:48 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 7, 2026, 10:48 AM EDT
Completed Phase 2 Interventional

The PROMISE Study: Duavee in Women With DCIS

NCT02694809
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Postmenopausal
Interventions
Conjugated Estrogens/Bazedoxifene, Laboratory Biomarker Analysis, Pharmacological Study, Placebo, Quality-of-Life Assessment, Questionnaire Administration
Drug · Other · Procedure
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 79 Years · Female only
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
10
States / cities
Aurora, Colorado • Chicago, Illinois • Geneva, Illinois + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 2 Interventional Results available

AZD2171 in Addition to Fulvestrant in Patients With Advanced Breast Cancer.

NCT00454805
View directory record Official record
Conditions
Advanced Breast Cancer
Interventions
AZD2171, Fulvestrant
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years · Female only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
6
States / cities
Burbank, California • Los Angeles, California • Palm Springs, California + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 3, 2016 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 3 Interventional Results available

Phase III Study of BKM120/Placebo With Fulvestrant in Postmenopausal Patients With Hormone Receptor Positive HER2-negative Locally Advanced or Metastatic Breast Cancer Refractory to Aromatase Inhibitor

NCT01610284
View directory record Official record
Conditions
Breast Cancer
Interventions
Fulvestrant, BKM120, BKM120 matching placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
61
States / cities
Mobile, Alabama • Phoenix, Arizona • Fayetteville, Arkansas + 51 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2020 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Preoperative Estrogen Treatment on Connective Tissues of the Pelvic Floor

NCT01778985
View directory record Official record
Conditions
Pelvic Organ Prolapse, Menopause
Interventions
Premarin, Placebo
Drug · Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
40 Years to 70 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 2, 2014 · Synced Oct 7, 2026, 10:48 AM 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 7, 2026, 10:48 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Impact of Metformin in Teens With Polycystic Ovary Syndrome (PCOS) on Oral Contraceptive Therapy

NCT00283816
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Metformin, Oral Contraceptive Pill, Lifestyle Management Program, Quality of Life Questionnaire, Oral Glucose Tolerance Test, Blood work, Abdominal Ultra Sound, Dual-energy x-ray absorptiometry (DEXA scan), placebo
Drug · Behavioral · Procedure
Lead sponsor
University of Rochester
Other
Eligibility
12 Years to 18 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated May 15, 2015 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 2Phase 3 Interventional

Alzheimer's Disease: Therapeutic Potential of Estrogen

NCT00066157
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Transdermal estradiol, Medroxyprogesterone, Placebo Patch, Placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
55 Years to 90 Years · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Oct 7, 2026, 10:48 AM EDT
Terminated Phase 4 Interventional

Topical Vaginal Estrogen for Postpartum Obstetric Anal Sphincter Injury Recovery

NCT05317364
View directory record Official record
Conditions
Obstetric; Injury Pelvic Floor, Sexual Dysfunction, Anal Incontinence, Urinary Incontinence
Interventions
Estradiol 0.01% Vag Cream, Placebo vaginal cream
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older · Female only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Oct 7, 2026, 10:48 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Effects of Anorexia Nervosa on Bone Mass in Adolescents

NCT00088153
View directory record Official record
Conditions
Anorexia Nervosa
Interventions
Physiologic Estrogen/progesterone, Placebo
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
12 Years to 18 Years · Female only
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Oct 7, 2026, 10:48 AM EDT
Terminated Phase 4 Interventional Results available

Hormonal Status on Blood Flow and Tissue in Pelvic Organ Prolapse

NCT01886794
View directory record Official record
Conditions
Pelvic Floor Disorders
Interventions
Postmenopausal, topical vaginal estrogen cream, Placebo Comparator: Postmenopausal, topical placebo cream
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
21 Years to 70 Years · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Oct 7, 2026, 10:48 AM EDT
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 7, 2026, 10:48 AM EDT
Recruiting Phase 3 Interventional

A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)

NCT07174336
View directory record Official record
Conditions
Breast Neoplasms, Neoplasm Metastasis
Interventions
LY4064809, Placebo, Ribociclib, Palbociclib, Abemaciclib, Anastrozole, Letrozole, Exemestane, Fulvestrant
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2033
U.S. locations
127
States / cities
Anchorage, Alaska • Chandler, Arizona • Phoenix, Arizona + 109 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 7, 2026, 10:48 AM EDT