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ClinicalTrials.gov public records Last synced Sep 22, 2026, 2:10 PM EDT

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Showing 1–24 of 879 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: therapeutic estradiol 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 22, 2026, 2:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Randomized, Placebo-Controlled, Two-Period, Crossover Study to Evaluate the Effect of Lurasidone HCl on Oral Contraceptive Pharmacokinetics in Healthy Female Subjects

NCT00549666
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Lurasidone 40 mg, Placebo 40 mg, Ortho Tri-Cyclen
Drug
Lead sponsor
Sumitomo Pharma America, Inc.
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 13, 2011 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Atazanavir and Ritonavir (ATV/RTV) and an Oral Contraceptive in Healthy Females

NCT00357604
View directory record Official record
Conditions
HIV Infections
Interventions
Ortho Tri-Cyclen (ethinyl estradiol + norgestimate), Ortho Tri-Cyclen LO (ethinyl estradiol + norgestimate) + Atazanavir/Ritonavir for 14 days then Ortho Tri-Cyclen for 7 days
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2011 · Synced Sep 22, 2026, 2:10 PM EDT
Active, not recruiting Phase 1 Interventional

Study of INCB123667 in Subjects With Advanced Solid Tumors

NCT05238922
View directory record Official record
Conditions
Solid Tumors
Interventions
INCB0123667, Palbociclib, Bevacizumab, Olaparib, Paclitaxel, Ribociclib, Fulvestrant
Drug
Lead sponsor
Incyte Corporation
Industry
Eligibility
18 Years and older
Enrollment
291 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
18
States / cities
Duarte, California • Irvine, California • Los Angeles, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Results available

Palbociclib and Letrozole or Fulvestrant in Treating Patients With Estrogen Receptor Positive, HER2 Negative Metastatic Breast Cancer

NCT03633331
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, HER2/Neu Negative, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Palbociclib, Letrozole, Fulvestrant, Questionnaire Administration, Quality-of-Life Assessment
Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
70 Years and older
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
447
States / cities
Anchorage, Alaska • Kingman, Arizona • Arroyo Grande, California + 303 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Active, not recruiting Phase 1 Interventional

A Phase 1 Study of ATV-1601 in Patients With Advanced Cancer That Have AKT1 E17K Mutations

NCT07038369
View directory record Official record
Conditions
Advanced Solid Tumors, Breast Cancer, Breast Carcinoma, Breast Neoplasms, ER Positive Breast Cancer, Cervical Cancers, Cervical Neoplasms, Cervical Carcinoma, Triple Negative Breast Cancer, Gynecologic Cancers, Gynecologic Neoplasm, Endometrial Cancer, Endometrial Neoplasm, Endometrial Carcinoma (EC), Fallopian Cancer, Ovarian Carcinoma, Ovarian Cancer, Ovarian Neoplasms, Prostate Cancers, Prostate Carcinoma, Solid Tumors, Neoplasms, Neoplasms by Site, Breast Diseases, Uterine Neoplasms, Genital Neoplasms, Female, Urogenital Neoplasms
Interventions
ATV-1601, ATV-1601 + Fulvestrant
Drug · Combination Product
Lead sponsor
Atavistik Bio, Inc
Industry
Eligibility
18 Years and older
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
5
States / cities
Los Angeles, California • Lake Mary, Florida • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Postmarketing Open-Label Study to Assess Residual Levonorgestrel (LNG) and Ethinyl Estradiol (EE) Content of TWIRLA® (Levonorgestrel and Ethinyl Estradiol) Transdermal System

NCT07739589
View directory record Official record
Conditions
Residual Drug Amount of EE and LNG
Interventions
Twirla® (Levonorgestrel/Ethinyl Estradiol) Transdermal System
Drug
Lead sponsor
Insud Pharma
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Fair Lawn, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Results available

The Effect of Hormonal Add-Back Therapy in Adolescents Treated With a GnRH Agonist for Endometriosis: A Randomized Trial

NCT00474851
View directory record Official record
Conditions
Endometriosis
Interventions
Norethindrone acetate + estrogens, norethindrone acetate + placebo
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
13 Years to 22 Years · Female only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 29, 2015 · Synced Sep 22, 2026, 2:10 PM EDT
Terminated Phase 2 Interventional Results available

Study Evaluating the Addition of Fulvestrant to Erlotinib in Stage IIIB/IV Non-Small Cell Lung Cancer

NCT00592007
View directory record Official record
Conditions
Non Small Cell Lung Carcinoma
Interventions
Fulvestrant and Erlotinib
Drug
Lead sponsor
Lyudmila Bazhenova, M.D.
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2017 · Synced Sep 22, 2026, 2:10 PM EDT
Active, not recruiting Phase 2 Interventional

Efficacy and Safety of 500mg of Fulvestrant

NCT00585507
View directory record Official record
Conditions
Breast Cancer
Interventions
Fulvestrant
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2027
U.S. locations
5
States / cities
Boston, Massachusetts • Lowell, Massachusetts • South Weymouth, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Recruiting Phase 3 Interventional

Phase 3 Study of Gedatolisib as First-Line Treatment for Patients With HR-Positive, HER2-Negative Advanced Breast Cancer (VIKTORIA-2)

NCT06757634
View directory record Official record
Conditions
Breast Cancer
Interventions
Arm A: Gedatolisib + Palbociclib + Fulvestrant, Arm B: Ribociclib + Fulvestrant, Arm C: Gedatolisib + Palbociclib + Letrozole, Arm D: Ribociclib + Letrozole
Drug
Lead sponsor
Celcuity Inc
Industry
Eligibility
18 Years and older
Enrollment
1,180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2033
U.S. locations
22
States / cities
Duarte, California • Fullerton, California • Los Angeles, California + 19 more
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Completed No phase listed Observational

The Effects of Estrogen Withdrawal on Mood Symptoms in Women

NCT00060736
View directory record Official record
Conditions
Perimenopausal Depression, Post Menopausal, Healthy, Depression
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
45 Years to 65 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 15, 2019 · Synced Sep 22, 2026, 2:10 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 5, 2025 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effects of Pregnancy-associated Hormones on THC Metabolism in Women

NCT04374773
View directory record Official record
Conditions
Pregnancy Related, Cannabis Use
Interventions
Dronabinol
Drug
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 4 Interventional

Does Vaginal Delivery of Combined Hormonal Contraception Affect the Risk of Metabolic Syndrome in Overweight/Obese Women With PCOS

NCT04257500
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Etonogestrel/ethinyl estradiol vaginal ring
Drug
Lead sponsor
Andrea Roe, MD, MPH
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 22, 2026, 2:10 PM EDT
Not listed Phase 2 Interventional

Deslorelin Combined With Low-Dose Add-Back Estradiol and Testosterone in Preventing Breast Cancer in Premenopausal Women Who Are at High Risk for This Disease

NCT00080756
View directory record Official record
Conditions
brca1 Mutation Carrier, brca2 Mutation Carrier, Breast Cancer
Interventions
therapeutic estradiol, deslorelin, therapeutic testosterone, therapeutic conventional surgery, active surveillance, quality-of-life assessment, laboratory biomarker analysis
Biological · Drug · Procedure + 1 more
Lead sponsor
City of Hope Medical Center
Other
Eligibility
21 Years to 48 Years · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2024
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Aug 27, 2024 · Synced Sep 22, 2026, 2:10 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Bioidentical 'Natural' Hormone Evaluation in Early Menopause

NCT00302731
View directory record Official record
Conditions
Menopause
Interventions
Estradiol , estriol , progesterone, estradiol, progesterone, estriol, progesterone, equine estrogens m-progesteroneacetate
Drug
Lead sponsor
Jeanne Drisko, MD, CNS, FACN
Other
Eligibility
40 Years to 65 Years · Female only
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2014
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 5, 2018 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Results available

Evaluating Pharmacokinetic Interactions With Vaginal Ring Contraceptives and ART

NCT01903031
View directory record Official record
Conditions
HIV-1 Infection
Interventions
Nuvaring, EFV, ATV/r, TDF, NRTIs
Device · Drug
Lead sponsor
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Network
Eligibility
16 Years and older · Female only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
10
States / cities
Birmingham, Alabama • Los Angeles, California • Aurora, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2018 · Synced Sep 22, 2026, 2:10 PM EDT
Active, not recruiting Phase 2 Interventional Results available

Preoperative Fulvestrant With or Without Enzalutamide in ER+/Her2- Breast Cancer

NCT02955394
View directory record Official record
Conditions
Breast Cancer
Interventions
Enzalutamide, Fulvestrant
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 101 Years · Female only
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
3
States / cities
Aurora, Colorado • New York, New York • Germantown, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Active, not recruiting Phase 3 Interventional

OP-1250 (Palazestrant) vs. Standard of Care for the Treatment of ER+/HER2- Advanced Breast Cancer

NCT06016738
View directory record Official record
Conditions
Breast Cancer, Advanced Breast Cancer, Metastatic Breast Cancer, ER Positive Breast Cancer, HER2 Negative Breast Carcinoma
Interventions
Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Drug
Lead sponsor
Olema Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
47
States / cities
Tucson, Arizona • Fountain Valley, California • Glendale, California + 39 more
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 22, 2026, 2:10 PM EDT
Suspended Phase 1 Interventional Accepts healthy volunteers

Determine the Effects of C-administration of AZD7325 and an Oral Contraceptive in Healthy Female Subjects

NCT00901290
View directory record Official record
Conditions
Pharmacokinetics
Interventions
monophasic oral contraceptive, AZD7325
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 9, 2010 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Results available

Estrogen Receptor Beta and Mood

NCT03689543
View directory record Official record
Conditions
Perimenopause-Related Depression
Interventions
Estradiol, ER Beta Agonist, Placebo, Provera
Drug · Other
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
45 Years to 65 Years · Female only
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 22, 2026, 2:10 PM EDT
Completed Phase 1 Interventional

Alisertib and Fulvestrant in Treating Patients With Hormone Receptor Positive Breast Cancer That is Metastatic or Locally Advanced and Cannot Be Removed by Surgery

NCT02219789
View directory record Official record
Conditions
Estrogen Receptor Positive, Progesterone Receptor Positive, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Alisertib, Fulvestrant, Laboratory Biomarker Analysis
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 2, 2018 · Synced Sep 22, 2026, 2:10 PM EDT
Active, not recruiting Phase 1 Interventional

[177Lu]Lu-NeoB in Combination With Ribociclib and Fulvestrant in Participants With ER+, HER2- and GRPR+ Advanced Breast Cancer

NCT05870579
View directory record Official record
Conditions
Breast Cancer
Interventions
[68Ga]Ga-NeoB, [177Lu]Lu-NeoB, Ribociclib, Fulvestrant, Goserelin
Drug · Other
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2032
U.S. locations
2
States / cities
Los Angeles, California • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 22, 2026, 2:10 PM EDT