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ClinicalTrials.gov public records Last synced Oct 27, 2026, 9:18 PM EDT

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Showing 241–264 of 754 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Estrogens Clear all
Terminated Phase 1Phase 2 Interventional Results available

Study of Elacestrant in Combination With Onapristone in Patients With Advanced or Metastatic Breast Cancer

NCT05618613
View directory record Official record
Conditions
Breast Cancer
Interventions
Elacestrant, Onapristone
Drug
Lead sponsor
Context Therapeutics Inc.
Industry
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
3
States / cities
Phoenix, Arizona • Zion, Illinois • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Use of the Synthetic Hormone CDB-2914 in Treating Symptoms of Menopause

NCT00009659
View directory record Official record
Conditions
Postmenopause
Interventions
CDB 2914
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Female only
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 27, 2026, 9:18 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 27, 2026, 9:18 PM EDT
Suspended Phase 2 Interventional

High Cannabidiol Plant Extract (BRC-001) to Improve Aromatase Inhibitor-Induced Arthralgia in Women With Breast Cancer

NCT06538389
View directory record Official record
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Breast Adenocarcinoma, Breast Ductal Carcinoma In Situ, Estrogen Receptor-Positive Breast Carcinoma, Progesterone Receptor-Positive Breast Carcinoma
Interventions
Biospecimen Collection, BRC-001, Placebo Administration, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Oct 27, 2026, 9:18 PM EDT
Active, not recruiting Phase 2 Interventional Results available

PD 0332991 and Anastrozole for Stage 2 or 3 Estrogen Receptor Positive and HER2 Negative Breast Cancer

NCT01723774
View directory record Official record
Conditions
Breast Neoplasms
Interventions
PD0332991, Anastrozole, Goserelin, Surgery (standard of care), Tumor biopsy
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
4
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Rochester, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 2 Interventional Results available

Tipifarnib and Fulvestrant in Hormone Receptor-Positive Metastatic Breast Cancer

NCT00082810
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, Recurrent Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
fulvestrant, tipifarnib
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 1, 2018 · Synced Oct 27, 2026, 9:18 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Estrogen and Microvascular Function

NCT06043310
View directory record Official record
Conditions
Estrogen, Cardiovascular Diseases, Microvasculature, Oral Contraceptive Use
Interventions
Nω-nitro-L-arginine methyl ester (L-NAME), Acetylcholine, Sodium Nitroprusside
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2031
U.S. locations
1
States / cities
Wauwatosa, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Not applicable Interventional Results available

Pilot Study Estradiol Followed by Exemestane Hormone Receptor + Metastatic Breast Cancer

NCT01385280
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, Progesterone Receptor Positive Tumor, Recurrent Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
therapeutic estradiol, exemestane, laboratory biomarker analysis, enzyme-linked immunosorbent assay
Biological · Drug · Other
Lead sponsor
University of Arizona
Other
Eligibility
Female only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 17, 2018 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 2 Interventional

Neoadjuvant Letrozole in Treating Postmenopausal Women With Estrogen-Receptor Positive and/or Progesterone-Receptor Positive Stage II, Stage IIIA, or Stage IIIB Breast Cancer

NCT00084396
View directory record Official record
Conditions
Breast Cancer
Interventions
letrozole, conventional surgery
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2016
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 26, 2016 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Alzheimer's Disease Prevention Trial

NCT00000176
View directory record Official record
Conditions
Alzheimer Disease, Memory Disorders
Interventions
Estrogen, Estrogen and Progesterone
Drug
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
65 Years and older · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2007
U.S. locations
22
States / cities
Birmingham, Alabama • Irvine, California • Stamford, Connecticut + 18 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2010 · Synced Oct 27, 2026, 9:18 PM EDT
Completed No phase listed Observational

The Ultrasound Study of Tamoxifen

NCT01582074
View directory record Official record
Conditions
Breast Neoplasms
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
30 Years to 70 Years · Female only
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 28, 2020 · Synced Oct 27, 2026, 9:18 PM EDT
Active, not recruiting Phase 3 Interventional

Vepdegestrant (ARV-471/PF-07850327) + Palbociclib vs Letrozole + Palbociclib in ER(+)/HER2(-) Advanced Breast Cancer

NCT05909397
View directory record Official record
Conditions
Breast Cancer
Interventions
Vepdegestrant (ARV-471/PF-07850327), Palbociclib, Letrozole
Drug · Combination Product
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Plantation, Florida • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 27, 2026, 9:18 PM 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 27, 2026, 9:18 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nipple Aspirate Fluid in Detecting Breast Cancer

NCT03715959
View directory record Official record
Conditions
Anatomic Stage IA Breast Cancer AJCC v8, Anatomic Stage IB Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Estrogen Receptor Negative, Healthy Subject, HER2 Positive Breast Carcinoma, HER2/Neu Negative, Luminal A Breast Carcinoma, Luminal B Breast Carcinoma, Progesterone Receptor Negative, Prognostic Stage I Breast Cancer AJCC v8, Prognostic Stage IA Breast Cancer AJCC v8, Prognostic Stage IB Breast Cancer AJCC v8, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8, Prognostic Stage IV Breast Cancer AJCC v8, Triple-Negative Breast Carcinoma
Interventions
Aspiration of Breast, Biospecimen Collection
Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
40 Years and older · Female only
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Not applicable Interventional

Combined Estrogen Blockade of the Breast With Exemestane and Raloxifene in Postmenopausal Women With a History of Breast Cancer Who Have No Clinical Evidence of Disease

NCT00200174
View directory record Official record
Conditions
Breast Cancer
Interventions
Raloxifene followed by combination therapy, Exemestane followed by combination therapy
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 5, 2023 · Synced Oct 27, 2026, 9:18 PM 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 27, 2026, 9:18 PM EDT
Recruiting Phase 3 Interventional

Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer

NCT07085767
View directory record Official record
Conditions
Breast Cancer, Locally Advanced Breast Cancer, Metastatic Breast Cancer, ER Positive Breast Cancer, HER2 Negative Breast Carcinoma
Interventions
Palazestrant, Letrozole-matching placebo, Ribociclib, Letrozole, Palazestrant matching-placebo
Drug
Lead sponsor
Olema Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
62
States / cities
Hot Springs, Arkansas • Beverly Hills, California • La Jolla, California + 54 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 3 Interventional

The Estrogen Replacement and Atherosclerosis Trial ; Primary Outcome Measure is Mean Minimal Coronary Artery Diameter After Avg of 3.2 Yrs.

NCT03097120
View directory record Official record
Conditions
Heart Disease
Interventions
0.625 mg of conjugated equine estrogen, 0.625 mg of conjugated equine estrogen plus 2.5 mg of medroxyprogesterone acetate, placebo tablets
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
55 Years and older · Female only
Enrollment
309 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2001
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 22, 2023 · Synced Oct 27, 2026, 9:18 PM EDT
Not listed Phase 4 Interventional

Vaginal Estrogen for Asymptomatic Microscopic Hematuria

NCT03033160
View directory record Official record
Conditions
Asymptomatic Microscopic Hematuria
Interventions
Estradiol Ring
Drug
Lead sponsor
Boston Urogynecology Associates
Other
Eligibility
18 Years and older · Female only
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 2 Interventional

Phase II Metastatic ER+/PgR+ Nolvadex +/- Iressa Study

NCT00229697
View directory record Official record
Conditions
Breast Neoplasms
Interventions
Gefitinib, Tamoxifen
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years · Female only
Enrollment
317 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2015
U.S. locations
4
States / cities
Berkeley, California • Palm Springs, California • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2015 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

ELITE: Early Versus Late Intervention Trial With Estradiol

NCT00114517
View directory record Official record
Conditions
Atherosclerosis
Interventions
17B-estradiol, Placebo
Drug · Other
Lead sponsor
University of Southern California
Other
Eligibility
Female only
Enrollment
643 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 18, 2023 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 3 Interventional Results available

Study Evaluating Bazedoxifene/Conjugated Estrogens Combinations In Postmenopausal Women

NCT00242710
View directory record Official record
Conditions
Endometrial Hyperplasia, Osteoporosis
Interventions
Bazedoxifene/Conjugated Estrogen, CE 0.45 mg/MPA 1.5mg, Placebo
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
40 Years to 65 Years · Female only
Enrollment
1,083 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
9
States / cities
Upland, California • Inverness, Florida • West Palm Beach, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2013 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 3 Interventional Results available

Suppression of Ovarian Function With Either Tamoxifen or Exemestane Compared With Tamoxifen Alone in Treating Premenopausal Women With Hormone-Responsive Breast Cancer

NCT00066690
View directory record Official record
Conditions
Estrogen Receptor Positive Breast Cancer, Progesterone Receptor Positive Tumor, Recurrent Breast Carcinoma, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer
Interventions
Exemestane, Laboratory Biomarker Analysis, Oophorectomy, Quality-of-Life Assessment, Radiation Therapy, Tamoxifen, Triptorelin
Drug · Other · Procedure + 1 more
Lead sponsor
ETOP IBCSG Partners Foundation
Network
Eligibility
18 Years to 65 Years · Female only
Enrollment
3,066 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2024
U.S. locations
480
States / cities
Birmingham, Alabama • Anchorage, Alaska • Scottsdale, Arizona + 323 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 27, 2026, 9:18 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Trial of H3B-6545, in Women With Locally Advanced or Metastatic Estrogen Receptor-positive, HER2 Negative Breast Cancer

NCT03250676
View directory record Official record
Conditions
Breast Neoplasms, Breast Cancer, Estrogen-receptor Positive Breast Cancer, Cancer, Breast, Breast Cancer Female, Breast Adenocarcinoma, Estrogen Receptor Positive Tumor, ER Positive
Interventions
H3B-6545
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
23
States / cities
Goodyear, Arizona • Los Angeles, California • San Francisco, California + 18 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Oct 27, 2026, 9:18 PM EDT