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ClinicalTrials.gov public records Last synced Oct 8, 2026, 1:43 AM EDT

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Showing 25–48 of 676 matching trials from the live ClinicalTrials.gov search.
Filters: "hormone receptor-positive" Condition: Breast Cancer Clear all
Active, not recruiting Phase 2 Interventional Results available

Pembrolizumab, Endocrine Therapy, and Palbociclib in Treating Postmenopausal Patients With Newly Diagnosed Metastatic Stage IV Estrogen Receptor Positive Breast Cancer

NCT02778685
View directory record Official record
Conditions
Metastatic Breast Carcinoma, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Fulvestrant, Laboratory Biomarker Analysis, Letrozole, Palbociclib, Pembrolizumab
Drug · Other · Biological
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
7
States / cities
Corona, California • Duarte, California • Lancaster, California + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Completed Phase 3 Interventional

Phase III Comparison of Adjuvant Chemotherapy W/High-Dose Cyclophosphamide Plus Doxorubicin (AC) vs Sequential Doxorubicin Fol by Cyclophosphamide (A-C) in High Risk Breast Cancer Patients With 0-3 Positive Nodes (Intergroup, CALGB 9394)

NCT00590785
View directory record Official record
Conditions
High Risk, Breast Cancer, Positive Nodes, Cyclophosphamide, Doxorubicin
Interventions
Doxorubicin, Cyclophosphamide, G-CSF, tamoxifen, ciprofloxacin
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 25, 2017 · Synced Oct 8, 2026, 1:43 AM EDT
Terminated Phase 1 Interventional Results available

DHEA in Treating Women Undergoing Surgery for Stage I, Stage II, or Stage III Breast Cancer

NCT00972023
View directory record Official record
Conditions
Breast Cancer
Interventions
DHEA, Surgical resection
Drug · Procedure
Lead sponsor
Barbara Ann Karmanos Cancer Institute
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 17, 2019 · Synced Oct 8, 2026, 1:43 AM EDT
Completed No phase listed Observational

A Study to Understand the Patients Confirmed to Have Advanced or Metastatic Breast Cancer and Receiving Palbociclib Treatment Using a Real-world Database

NCT06962969
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
Ibrance
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Completed Not applicable Interventional

Lifestyle, Exercise and Nutrition Study 2 (LEAN 2)

NCT02110641
View directory record Official record
Conditions
Breast Cancer, Weight Loss
Interventions
Weight Loss Counseling
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 8, 2026, 1:43 AM EDT
Terminated Phase 2 Interventional Results available

Study Of CP-751,871 In Combination With Exemestane In Postmenopausal Women With Hormone Receptor Positive Advanced Breast Cancer

NCT00372996
View directory record Official record
Conditions
Breast Neoplasms
Interventions
CP-751,871, exemestane, Fulvestrant
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
219 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
33
States / cities
La Jolla, California • San Diego, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 28, 2015 · Synced Oct 8, 2026, 1:43 AM EDT
Completed No phase listed Observational

Multi-Institutional Transgender & Gender-Diverse Breast Cancer Study

NCT06234488
View directory record Official record
Conditions
Breast Cancer, Breast Neoplasms, Breast Adenocarcinoma, Breast Cancer Stage, Breast Cancer Stage IV, Breast Cancer Invasive, Breast Cancer in Situ
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
22
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 16 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Completed Phase 2 Interventional Results available

Extended Endocrine Therapy for Premenopausal Women With Breast Cancer

NCT00903162
View directory record Official record
Conditions
Breast Cancer
Interventions
leuprolide, letrozole, zoledronic acid
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
4
States / cities
Denver, Colorado • Boston, Massachusetts • Newton, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2016 · Synced Oct 8, 2026, 1:43 AM EDT
Completed No phase listed Observational

PET Scans in Assessing Response To Treatment in Patients Receiving Hormone Therapy or Trastuzumab for Breast Cancer

NCT00362973
View directory record Official record
Conditions
Breast Cancer
Interventions
laboratory biomarker analysis, needle biopsy, positron emission tomography, radionuclide imaging, fludeoxyglucose F 18
Other · Procedure · Radiation
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 120 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2006
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 28, 2016 · Synced Oct 8, 2026, 1:43 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Study of LEE011, BYL719 and Letrozole in Advanced ER+ Breast Cancer

NCT01872260
View directory record Official record
Conditions
Breast Cancer
Interventions
LEE011, Letrozole, BYL719
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years · Female only
Enrollment
259 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
10
States / cities
San Diego, California • San Francisco, California • Tampa, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Completed Phase 3 Interventional Results available

Triptorelin With Either Exemestane or Tamoxifen in Treating Premenopausal Women With Hormone-Responsive Breast Cancer

NCT00066703
View directory record Official record
Conditions
Breast Cancer
Interventions
exemestane, tamoxifen, triptorelin
Drug
Lead sponsor
ETOP IBCSG Partners Foundation
Network
Eligibility
18 Years to 65 Years · Female only
Enrollment
2,672 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2024
U.S. locations
139
States / cities
Burbank, California • La Jolla, California • Mission Hills, California + 106 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Terminated Phase 2 Interventional Results available

Fulvestrant and/or Trastuzumab as First-Line Therapy in Treating Postmenopausal Women With Stage IV Breast Cancer

NCT00138125
View directory record Official record
Conditions
Breast Cancer
Interventions
Faslodex, Herceptin
Drug · Biological
Lead sponsor
Translational Oncology Research International
Other
Eligibility
18 Years and older · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
3
States / cities
Los Angeles, California • Redondo Beach, California • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 19, 2020 · Synced Oct 8, 2026, 1:43 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Palbociclib / Letrozole or Fulvestrant in African American Women With HR+ HER2- Breast Cancer

NCT02692755
View directory record Official record
Conditions
Hormone Receptor Positive HER-2 Negative Breast Cancer
Interventions
Palbociclib + Letrozole or Fulvestrant
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years and older · Female only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
6
States / cities
Washington D.C., District of Columbia • Chicago, Illinois • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2021 · Synced Oct 8, 2026, 1:43 AM EDT
Terminated Phase 2 Interventional Results available

Aromatase Inhibitor and Durvalumab in Postmenopausal Breast Cancer

NCT03874325
View directory record Official record
Conditions
Breast Cancer, Hormone Receptor Positive Tumor
Interventions
Durvalumab, Anastrozole 1mg, Letrozole 2.5mg, Exemestane 25 MG
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 31, 2022 · Synced Oct 8, 2026, 1:43 AM EDT
Completed No phase listed Observational

Pharmacogenetics of Anastrozole in Postmenopausal Women With Estrogen Receptor-Positive and/or Progesterone Receptor-Positive Stage I, Stage II, or Stage III Breast Cancer

NCT00283608
View directory record Official record
Conditions
Breast Cancer
Interventions
Single nucleotide polymorphism (SNP), high performance liquid chromatography, measurements by DXA, questionnaire administration
Genetic · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
4
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated May 16, 2011 · Synced Oct 8, 2026, 1:43 AM EDT
Completed Phase 2 Interventional

Efficacy and Safety of BMS-690514 in Combination With Letrozole to Treat Metastatic Breast Cancer

NCT01068704
View directory record Official record
Conditions
Breast Cancer
Interventions
BMS-690514, Lapatinib, Letrozole
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older · Female only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
4
States / cities
Abilene, Texas • Beaumont, Texas • Fort Worth, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2015 · Synced Oct 8, 2026, 1:43 AM EDT
Terminated Phase 2 Interventional Results available

A Study of TAS-120 in Patients With Metastatic Breast Cancer

NCT04024436
View directory record Official record
Conditions
Metastatic Breast Cancer, FGFR 1 High Amplification, FGFR2 Amplification
Interventions
Futibatinib, Futibatinib plus Fulvestrant
Drug
Lead sponsor
Taiho Oncology, Inc.
Industry
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
17
States / cities
Phoenix, Arizona • San Francisco, California • Fort Myers, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Oct 8, 2026, 1:43 AM EDT
Completed Not applicable Interventional

Effects of Diet and Exercise on Ductal Carcinoma in Situ

NCT02224807
View directory record Official record
Conditions
Ductal Carcinoma In Situ, Breast Cancer
Interventions
Active Comparator: Progressive Resistance Training (PRT) and a healthy diet, Experimental: PRT and a healthy diet, plus weight loss
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older · Female only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 31, 2018 · Synced Oct 8, 2026, 1:43 AM EDT
Completed No phase listed Observational

A Study to Learn About the Relationship Between Hepatic Impairment and Myelosuppression (Decreased Bone Marrow Function) in Breast Cancer Patients Treated With the Study Medicine Palbociclib (Pal-bow-sai-klib)

NCT05912933
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,342 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Active, not recruiting Phase 2 Interventional

Secondary BRain Metastases Prevention After Isolated Intracranial Progression on Trastuzumab/Pertuzumab or T-DM1 in Patients With aDvanced Human Epidermal Growth Factor Receptor 2+ brEast Cancer With the Addition of Tucatinib

NCT05323955
View directory record Official record
Conditions
Brain Metastases, Human Epidermal Growth Factor 2 Positive Carcinoma of Breast, Advanced Breast Cancer
Interventions
Trastuzumab, Trastuzumab Emtansine (T-DM1), Pertuzumab, Tucatinib
Drug
Lead sponsor
Carey Anders, M.D.
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
8
States / cities
San Francisco, California • Boston, Massachusetts • Ann Arbor, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Measuring Musculoskeletal Symptoms in Patients Receiving Aromatase Inhibitors

NCT01074320
View directory record Official record
Conditions
Breast Cancer
Interventions
Other
Other
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
2
States / cities
Robbinsdale, Minnesota • Saint Louis Park, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 16, 2015 · Synced Oct 8, 2026, 1:43 AM EDT
Recruiting Not applicable Interventional

mHealth to Improve Medication Adherence Among Latina Breast Cancer Patients Experiencing Non-Medical Drivers of Health

NCT07706127
View directory record Official record
Conditions
Treatment Adherence
Interventions
HT Helper app use plus patient navigation support, Patient Navigation support alone, Usual Care
Behavioral · Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older · Female only
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Recruiting Phase 2 Interventional

A Study of Radiation Therapy With Pembrolizumab and Olaparib or Other Radiosensitizers in Women Who Have Triple-Negative or Hormone-Receptor Positive/Her2 Negative Breast Cancer

NCT04683679
View directory record Official record
Conditions
Triple Negative Breast Cancer, TNBC - Triple-Negative Breast Cancer, Breast Cancer, Metastatic Breast Cancer
Interventions
Pembrolizumab, Olaparib, Radiation
Drug · Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 8, 2026, 1:43 AM EDT
Completed No phase listed Observational

A Real-World Study of Early Breast Cancer Patients Eligible for Treatment With CDK4/6 Inhibitors

NCT07647042
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 8, 2026, 1:43 AM EDT