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ClinicalTrials.gov public records Last synced Sep 22, 2026, 10:29 PM EDT

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Showing 1–24 of 408 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Hormone Receptor Positive Breast Cancer 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, 10:29 PM EDT
Terminated Not applicable Interventional Results available

F-18 FES PET/CT in Measuring Hormone Expression in Patients With Primary, Recurrent, or Metastatic Breast Cancer Undergoing Endocrine-Targeted Therapy

NCT02149173
View directory record Official record
Conditions
Estrogen Receptor Positive, Recurrent Breast Carcinoma, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Computed Tomography, F-18 16 Alpha-Fluoroestradiol, Fludeoxyglucose F-18, Laboratory Biomarker Analysis, Positron Emission Tomography
Procedure · Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Sep 22, 2026, 10:29 PM EDT
Completed No phase listed Observational

PRospective Study Of MammaPrint in Patients With an Intermediate Recurrence Score

NCT01617954
View directory record Official record
Conditions
Hormone Receptor Positive Malignant Neoplasm of Breast
Interventions
MammaPrint
Device
Lead sponsor
Agendia
Industry
Eligibility
18 Years to 90 Years · Female only
Enrollment
820 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
53
States / cities
Phoenix, Arizona • Burbank, California • Palm Springs, California + 47 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2016 · Synced Sep 22, 2026, 10:29 PM EDT
Completed Not applicable Interventional Results available

Hormone Therapy Or Chemotherapy Before Surgery Based on Gene Expression Analysis in Treating Patients With Breast Cancer

NCT01293032
View directory record Official record
Conditions
Ductal Breast Carcinoma in Situ, Lobular Breast Carcinoma in Situ, Stage II Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer
Interventions
Neoadjuvant Therapy, Therapeutic Conventional Surgery, Laboratory Biomarker Analysis, Gene Expression Analysis, Systemic Chemotherapy, Tamoxifen Citrate, Aromatase Inhibition Therapy
Procedure · Other · Genetic + 1 more
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older · Female only
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
7
States / cities
Washington D.C., District of Columbia • Charlotte, North Carolina • Greensboro, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2016 · Synced Sep 22, 2026, 10:29 PM EDT
Recruiting Not applicable Interventional

Impact of Intermittent Fasting on Biomarkers of Inflammation and Health-Related Quality of Life: A Feasibility Trial for Women With HR+/HER2- Early Breast Cancer

NCT06106477
View directory record Official record
Conditions
Breast Cancer
Interventions
Intermittent Fasting
Behavioral
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 22, 2026, 10:29 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, 10:29 PM EDT
Recruiting Phase 3 Interventional

Trastuzumab Deruxtecan (T-DXd) in Patients Who Have Hormone Receptor-negative and Hormone Receptor-positive HER2-low or HER2 IHC 0 Metastatic Breast Cancer

NCT05950945
View directory record Official record
Conditions
Breast Cancer
Interventions
Trastuzumab Deruxtecan
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
5
States / cities
Miami Beach, Florida • Tampa, Florida • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Completed Phase 1Phase 2 Interventional Results available

A Study of ZN-c5 in Subjects With Breast Cancer

NCT03560531
View directory record Official record
Conditions
Breast Cancer
Interventions
ZN-c5, Palbociclib
Drug
Lead sponsor
Zeno Alpha Inc.
Industry
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
11
States / cities
Tucson, Arizona • Los Angeles, California • Bethesda, Maryland + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2024 · Synced Sep 22, 2026, 10:29 PM EDT
Withdrawn Phase 2 Interventional

S0511, Goserelin and Anastrozole in Treating Men With Recurrent or Metastatic Breast Cancer

NCT00217659
View directory record Official record
Conditions
Breast Cancer
Interventions
anastrozole, goserelin acetate
Drug
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
57
States / cities
Los Angeles, California • Sacramento, California • Aurora, Colorado + 36 more
Source: ClinicalTrials.gov public record
Updated Jan 2, 2013 · Synced Sep 22, 2026, 10:29 PM EDT
Active, not recruiting Phase 2 Interventional Results available

Pembrolizumab in Treating Patients With Hormone Receptor Positive, Localized Inflammatory Breast Cancer Who Are Receiving Hormone Therapy and Did Not Achieve a Pathological Complete Response to Chemotherapy

NCT02971748
View directory record Official record
Conditions
Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Breast Inflammatory Carcinoma, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8
Interventions
Pembrolizumab
Biological
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Completed Phase 3 Interventional Results available

Luteal vs Follicular Surgical Oophorectomy and Tamoxifen in Premenopausal Women With Metastatic Hormone Receptor Positive Breast Cancer

NCT00293540
View directory record Official record
Conditions
Breast Cancer
Interventions
oophorectomy, Tamoxifen
Procedure · Drug
Lead sponsor
International Breast Cancer Research Foundation
Other
Eligibility
18 Years and older · Female only
Enrollment
249 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 26, 2016 · Synced Sep 22, 2026, 10:29 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, 10:29 PM EDT
Recruiting Phase 3 Interventional

A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.

NCT07062965
View directory record Official record
Conditions
Breast Cancer
Interventions
PF-07248144, Fulvestrant, Everolimus, Exemestane
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
102
States / cities
Chandler, Arizona • Gilbert, Arizona • Glendale, Arizona + 85 more
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Terminated Phase 3 Interventional

Ribociclib vs. Palbociclib in Patients With Advanced Breast Cancer Within the HER2-Enriched Intrinsic Subtype

NCT05207709
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Ribociclib + Letrozole OR Fulvestrant, Palbociclib + Letrozole OR Fulvestrant, Paclitaxel +/- Tislelizumab
Drug
Lead sponsor
SOLTI Breast Cancer Research Group
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
26
States / cities
Clearwater, Florida • Coral Gables, Florida • Hollywood, Florida + 22 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Active, not recruiting Phase 3 Interventional

Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)

NCT04862663
View directory record Official record
Conditions
Locally Advanced (Inoperable) or Metastatic Breast Cancer
Interventions
Capivasertib, Fulvestrant, Palbociclib, Ribociclib, Abemaciclib
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 99 Years
Enrollment
893 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
40
States / cities
Tucson, Arizona • Fountain Valley, California • Glendale, California + 35 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Recruiting Not applicable Interventional

Signatera-Guided CDK4/6 Inhibitor Therapy in Breast Cancer

NCT07214532
View directory record Official record
Conditions
Breast Neoplasms, Carcinoma, Ductal, Breast, Receptors, Estrogen (for ER-positive Requirement)
Interventions
ctDNA-Guided Treatment Strategy
Device
Lead sponsor
Natera, Inc.
Industry
Eligibility
18 Years and older
Enrollment
725 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2037
U.S. locations
49
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Tucson, Arizona + 44 more
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Terminated Phase 2 Interventional Results available

Estrogen in Postmenopausal Women With ER Positive Metastatic Breast Cancer After Failure of Sequential Endocrine Therapy

NCT00661531
View directory record Official record
Conditions
Breast Cancer, Cancer of the Breast, Neoplasms, Breast
Interventions
Estrace, Anastrozole
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years and older · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Voorhees Township, New Jersey • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Sep 22, 2026, 10:29 PM EDT
Recruiting Phase 3 Interventional

Saruparib (AZD5305) Plus Camizestrant or Plus Endocrine Therapy, Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer

NCT06380751
View directory record Official record
Conditions
Advanced Breast Cancer
Interventions
Saruparib (AZD5305), Camizestrant, Abemaciclib, Ribociclib, Palbociclib, Fulvestrant, Letrozole, Anastrozole, Exemestane
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
788 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
57
States / cities
Gilbert, Arizona • Fountain Valley, California • Glendale, California + 49 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Withdrawn Phase 2 Interventional

Phase II Study Evaluating Exemestane Alone Or In Combination With Pazopanib In Postmenopausal Women With Hormone Receptor Positive Breast Cancer

NCT00615524
View directory record Official record
Conditions
Hormone-receptor Positive Breast Cancer
Interventions
exemestane and pazopanib
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 11, 2018 · Synced Sep 22, 2026, 10:29 PM EDT
Active, not recruiting Phase 3 Interventional Results available

Study of Trastuzumab Deruxtecan (T-DXd) vs Investigator's Choice Chemotherapy in HER2-low, Hormone Receptor Positive, Metastatic Breast Cancer

NCT04494425
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
Trastuzumab deruxtecan, Capecitabine, Paclitaxel, Nab-Paclitaxel
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 105 Years
Enrollment
866 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
27
States / cities
Scottsdale, Arizona • Springdale, Arkansas • Duarte, California + 23 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Recruiting Phase 1Phase 2 Interventional

Zunsemetinib in Combination With Capecitabine in Patients With Hormone Receptor-Positive and HER2-Negative Metastatic Breast Cancer With Bone Metastasis

NCT06374459
View directory record Official record
Conditions
Hormone Receptor Positive HER-2 Negative Metastatic Breast Cancer
Interventions
Zumsemetinib, Capecitabine, Zoledronic acid, Denosumab
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
3
States / cities
Westwood, Kansas • Rochester, Minnesota • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Sep 22, 2026, 10:29 PM EDT
Active, not recruiting Phase 2 Interventional

Preventing High Blood Sugar in People Being Treated for Metastatic Breast Cancer

NCT05090358
View directory record Official record
Conditions
Breast Cancer, Breast Cancer Stage IV, Metastatic Breast Cancer
Interventions
Ketogenic Diet, Low Carbohydrate Diet, Alpelisib, Fulvestrant, Canagliflozin
Dietary Supplement · Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
9
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 22, 2026, 10:29 PM 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 22, 2026, 10:29 PM EDT
Completed Phase 1 Interventional

Endoxifen in Adults With Hormone Receptor Positive Solid Tumors

NCT01273168
View directory record Official record
Conditions
Hormone Receptor-Positive Breast, Gynecologic, Desmoid, Hormone Receptor-Positive Neoplasms
Interventions
Z-Endoxifen
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 120 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 22, 2025 · Synced Sep 22, 2026, 10:29 PM EDT