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Showing 1–24 of 70 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Estradiol or Placebo Clear all
Active, not recruiting Phase 3 Interventional Results available

Capivasertib+Fulvestrant vs Placebo+Fulvestrant as Treatment for Locally Advanced (Inoperable) or Metastatic HR+/HER2- Breast Cancer

NCT04305496
View directory record Official record
Conditions
Locally Advanced (Inoperable) or Metastatic Breast Cancer
Interventions
Fulvestrant, Capivasertib, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
818 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
22
States / cities
Gilbert, Arizona • Orange, California • San Francisco, California + 19 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 23, 2026, 12:03 AM EDT
Completed Phase 2 Interventional

Effect of Biosynthetic Growth Hormone and/or Ethinyl Estradiol on Adult Height in Patients With Turner Syndrome

NCT00001221
View directory record Official record
Conditions
Gonadal Dysgenesis, Turner's Syndrome
Interventions
Growth Hormone (Humatrope)
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Female only
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1987 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 23, 2026, 12:03 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Role of Menopause in Thermoregulation

NCT06798571
View directory record Official record
Conditions
Menopause, Aging
Interventions
Elagolix Oral Tablet, Estradiol patch, cellulose placebo, placebo patch
Drug · Other
Lead sponsor
Penn State University
Other
Eligibility
42 Years to 64 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 23, 2026, 12:03 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 29, 2018 · Synced Sep 23, 2026, 12:03 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 2, 2016 · Synced Sep 23, 2026, 12:03 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 30, 2022 · Synced Sep 23, 2026, 12:03 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 12, 2025 · Synced Sep 23, 2026, 12:03 AM EDT
Completed Phase 2 Interventional Results available

Study of Fulvestrant +/- Everolimus in Post-Menopausal, Hormone-Receptor + Metastatic Breast Ca Resistant to AI

NCT01797120
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Fulvestrant, Everolimus, Placebo
Drug
Lead sponsor
PrECOG, LLC.
Other
Eligibility
18 Years and older
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
25
States / cities
Greenbrae, California • Stanford, California • Rockford, Illinois + 21 more
Source: ClinicalTrials.gov public record
Updated May 29, 2018 · Synced Sep 23, 2026, 12:03 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 1, 2021 · Synced Sep 23, 2026, 12:03 AM EDT
Terminated Phase 2 Interventional Results available

Trial Evaluating Dovitinib Combined With Fulvestrant, in Postmenopausal Patients With HER2- and HR+ Breast Cancer

NCT01528345
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Dovitinib, Fulvestrant, Dovitinib Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
18
States / cities
Chandler, Arizona • Fayetteville, Arkansas • Duarte, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2016 · Synced Sep 23, 2026, 12:03 AM EDT
Completed Phase 3 Interventional Results available

A Global Study to Compare the Effects of Fulvestrant and Arimidex in a Subset of Patients With Breast Cancer.

NCT01602380
View directory record Official record
Conditions
Hormone Receptor Positive Breast Cancer
Interventions
faslodex 500mg, arimidex 1mg, faslodex dummy, arimidex dummy
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years · Female only
Enrollment
462 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2026
U.S. locations
12
States / cities
Modesto, California • Savannah, Georgia • Auburn, Maine + 9 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 23, 2026, 12:03 AM EDT
Completed Phase 2 Interventional Results available

Vestibulodynia: Understanding Pathophysiology and Determining Appropriate Treatments

NCT03844412
View directory record Official record
Conditions
Vestibulodynia, Temporomandibular Disorder, Fibromyalgia Syndrome, Irritable Bowel Syndrome, Migraines, Tension Headache, Endometriosis, Interstitial Cystitis, Back Pain, Chronic Fatigue Syndrome
Interventions
5% lidocaine/5 mg/ml 0.02% estradiol compound cream, Nortriptyline, Placebo cream, Placebo pill
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
2
States / cities
Los Angeles, California • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Sep 23, 2026, 12:03 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 21, 2026 · Synced Sep 23, 2026, 12:03 AM EDT
Completed Phase 3 Interventional Results available

Study to Evaluate the Equivalence of Estradiol Vaginal Cream to Reference Standard in the Treatment of Vaginal Atrophy

NCT03332303
View directory record Official record
Conditions
Vulvar and Vaginal Atrophy
Interventions
Estrace® Cream, Estradiol Vaginal Cream, Vehicle Cream
Drug
Lead sponsor
Prasco LLC
Industry
Eligibility
30 Years to 75 Years · Female only
Enrollment
540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
27
States / cities
Sacramento, California • San Diego, California • Denver, Colorado + 23 more
Source: ClinicalTrials.gov public record
Updated May 29, 2024 · Synced Sep 23, 2026, 12:03 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 21, 2018 · Synced Sep 23, 2026, 12:03 AM EDT
Completed Phase 2 Interventional

Study of GDC-0941 or GDC-0980 With Fulvestrant Versus Fulvestrant in Advanced or Metastatic Breast Cancer in Participants Resistant to Aromatase Inhibitor Therapy

NCT01437566
View directory record Official record
Conditions
Breast Cancer
Interventions
Fulvestrant, GDC-0941, GDC-0941 Matching Placebo, GDC-0980, GDC-0980 Matching Placebo
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
318 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
41
States / cities
Birmingham, Alabama • Hayward, California • Oakland, California + 35 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced Sep 23, 2026, 12:03 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 21, 2026 · Synced Sep 23, 2026, 12:03 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Prevention of Menstrual Migraines: Effects of Estrogen Add-back During the HFI in Patients Using Continuous Oral Contraceptives.

NCT01251263
View directory record Official record
Conditions
Menstrual Migraines, Menstrual Bleeding, Menstrual Spotting
Interventions
Estradiol or Placebo
Drug
Lead sponsor
Scott and White Hospital & Clinic
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Temple, Texas
Source: ClinicalTrials.gov public record
Updated Nov 30, 2010 · Synced Sep 23, 2026, 12:03 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Atherosclerosis, Immune Mediated Inflammation and Hypoestrogenemia in Young Women

NCT03018366
View directory record Official record
Conditions
Estrogen Deficiency, Cardiovascular Disease (CVD), Functional Hypothalamic Amenorrhea, Endothelial Dysfunction
Interventions
17beta Estradiol, Transdermal placebo patch, Progesterone, Placebo Pill
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2025 · Synced Sep 23, 2026, 12:03 AM EDT
Terminated Phase 3 Interventional

Estrogen Replacement Therapy in Treating Women With Early-Stage Endometrial Cancer

NCT00002976
View directory record Official record
Conditions
Endometrial Cancer
Interventions
conjugated estrogens
Drug
Lead sponsor
Gynecologic Oncology Group
Network
Eligibility
Female only
Enrollment
2,108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1997
U.S. locations
149
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 99 more
Source: ClinicalTrials.gov public record
Updated Apr 10, 2013 · Synced Sep 23, 2026, 12:03 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 10, 2018 · Synced Sep 23, 2026, 12:03 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Kronos Early Estrogen Prevention Study (KEEPS)

NCT00154180
View directory record Official record
Conditions
Menopause, Arteriosclerosis
Interventions
Conjugated equine estrogens 0.45 mg/day, Transdermal estradiol, 50 mcg/day, Micronized progesterone, 200 mg/day x 12 d/month, CEE , progesterone, estradiol patch or placebo for each, CEE, progesterone, transdermal patch or the placebo
Drug
Lead sponsor
Kronos Longevity Research Institute
Other
Eligibility
42 Years to 58 Years · Female only
Enrollment
728 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
9
States / cities
Phoenix, Arizona • San Francisco, California • New Haven, Connecticut + 6 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2009 · Synced Sep 23, 2026, 12:03 AM EDT
Terminated Phase 3 Interventional Results available

A Phase III Study of BKM120 With Fulvestrant in Patients With HR+,HER2-, AI Treated, Locally Advanced or Metastatic Breast Cancer Who Progressed on or After mTORi

NCT01633060
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Fulvestrant, BKM120, BKM120 matching placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
432 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
37
States / cities
Mobile, Alabama • Chandler, Arizona • Fayetteville, Arkansas + 24 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2019 · Synced Sep 23, 2026, 12:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Estrogen and Serotonin on Changing Brain Chemistry

NCT01208324
View directory record Official record
Conditions
Menopause
Interventions
estrogen patch, Amino acids, Placebo Patch, Placebo pills
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
48 Years to 60 Years · Female only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 1, 2021 · Synced Sep 23, 2026, 12:03 AM EDT