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ClinicalTrials.gov public records Last synced Oct 29, 2026, 5:16 PM EDT

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Showing 25–48 of 225 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Hormone Receptor Positive / HER2-negative Breast Cancer Clear all
Completed Phase 2 Interventional Results available

Randomized Phase II Trial of Letrozole With or Without Dasatinib as First and Second-line Treatment for Hormone Receptor-positive, HER2-negative Post-menopausal Breast Cancer That is Unresectable, Locally Recurrent or Metastatic

NCT00696072
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Dasatinib, Letrozole
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
27
States / cities
Sedona, Arizona • Tucson, Arizona • Denver, Colorado + 22 more
Source: ClinicalTrials.gov public record
Updated Jun 13, 2016 · Synced Oct 29, 2026, 5:16 PM EDT
Recruiting Not applicable Interventional

A Ph II Study of the TheraBionic P1 Device in Subjects With Hormone Positive Breast Cancer

NCT07227831
View directory record Official record
Conditions
HER2-negative Breast Cancer, Hormone Receptor Positive Tumor, Advanced Breast Cancer, Metastatic Breast Cancer
Interventions
TheraBionic P1
Device
Lead sponsor
Barbara Ann Karmanos Cancer Institute
Other
Eligibility
22 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
8
States / cities
Bay City, Michigan • Clarkston, Michigan • Detroit, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 29, 2026, 5:16 PM EDT
Not yet recruiting Phase 2 Interventional

De-EscaLaTion of Aromatase Inhibitor Therapy: A Randomized Phase II Study of De-escalated Letrozole in Hormone Receptor-Positive Early Breast Cancer

NCT07866430
View directory record Official record
Conditions
Brest Cancer ER+ and HER2 Negative
Interventions
Letrozole
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 59 Years · Female only
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 29, 2026, 5:16 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Trial of Fulvestrant, MK-0646, and Dasatinib for Metastatic Hormone Receptor-Positive HER2-Negative Breast Cancer

NCT00903006
View directory record Official record
Conditions
Breast Cancer
Interventions
Fulvestrant, MK-0646, Dasatinib
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 2, 2015 · Synced Oct 29, 2026, 5:16 PM EDT
Withdrawn Phase 4 Interventional

A Study of Abemaciclib (LY2835219) in Participants With HR+, HER2- Advanced Breast Cancer

NCT03988114
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Abemaciclib, Nonsteroidal Aromatase Inhibitor (NSAI)
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
70
States / cities
Daphne, Alabama • Tempe, Arizona • Fountain Valley, California + 60 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2019 · Synced Oct 29, 2026, 5:16 PM EDT
Completed No phase listed Observational

A Real-world Study of Effectiveness and Safety in HR+/HER2- Breast Cancer Patients Treated With Ribociclib or Alpelisib

NCT06705504
View directory record Official record
Conditions
Hormone Receptor Positive HER-2 Negative Breast Cancer
Interventions
Not listed
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
435 participants
Timeline
2021 – 2023
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 26, 2024 · Synced Oct 29, 2026, 5:16 PM EDT
Completed Phase 2 Interventional

Endocrine Therapy Fulvestrant & Palbociclib or Aromatase Inhibitor Therapy in Treating Older Patients With Hormone Responsive Breast Cancer That Cannot Be Removed by Surgery

NCT02760030
View directory record Official record
Conditions
Estrogen Receptor and/or Progesterone Receptor Positive, HER2/Neu Negative, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer
Interventions
Fulvestrant, Laboratory Biomarker Analysis, Palbociclib, Questionnaire Administration, Aromatase Inhibitors
Drug · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
65 Years and older · Female only
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
3
States / cities
Edgewood, Kentucky • Cleveland, Ohio • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 19, 2025 · Synced Oct 29, 2026, 5:16 PM EDT
Recruiting Phase 3 Interventional

Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast Cancer

NCT06982521
View directory record Official record
Conditions
PIK3CA Mutation, HER2- Negative Breast Cancer, Hormone Receptor Positive Tumor, Breast Cancer, Metastatic Breast Cancer, Advanced Breast Cancer
Interventions
Zovegalisib, Capivasertib, Fulvestrant
Drug
Lead sponsor
Relay Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
52
States / cities
Gilbert, Arizona • Beverly Hills, California • Duarte, California + 42 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 29, 2026, 5:16 PM EDT
Terminated Phase 1 Interventional

Copanlisib, Letrozole, and Palbociclib in Treating Patients With Hormone Receptor Positive HER2 Negative Stage I-IV Breast Cancer

NCT03128619
View directory record Official record
Conditions
Estrogen Receptor Positive, HER2/Neu Negative, Invasive Breast Carcinoma, Multifocal Breast Carcinoma, Postmenopausal, Progesterone Receptor Positive, Stage I Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage II Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage III Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Biopsy of Breast, Copanlisib, Laboratory Biomarker Analysis, Letrozole, Palbociclib, Pharmacological Study
Procedure · Drug · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
19 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 26, 2022 · Synced Oct 29, 2026, 5:16 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 12, 2016 · Synced Oct 29, 2026, 5:16 PM 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 29, 2026, 5:16 PM EDT
Terminated Early Phase 1 Interventional

Letrozole in Treating Postmenopausal Women With Stage I, II or III Breast Cancer That Can Be Removed by Surgery

NCT00651976
View directory record Official record
Conditions
Breast Cancer
Interventions
letrozole, Blood Collection, biopsy/lumpectomy/mastectomy
Drug · Other · Procedure
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
5
States / cities
Atlanta, Georgia • Tulsa, Oklahoma • Pittsburgh, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Oct 29, 2026, 5:16 PM EDT
Completed Phase 2 Interventional Results available

Study of Letrozole With or Without BYL719 or Buparlisib, for the Neoadjuvant Treatment of Postmenopausal Women

NCT01923168
View directory record Official record
Conditions
Breast Cancer
Interventions
alpelisib, buparlisib, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
23
States / cities
Birmingham, Alabama • Fayetteville, Arkansas • Los Angeles, California + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2018 · Synced Oct 29, 2026, 5:16 PM EDT
Recruiting Phase 3 Interventional

Testing Whether Hormone Therapy With Ribociclib is as Effective as Chemotherapy Followed by Hormone Therapy With Ribociclib for the Treatment of High Anatomic Stage Breast Cancer With Low Recurrence Risk, The RxFINE-Low Trial

NCT07391774
View directory record Official record
Conditions
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma
Interventions
Anastrozole, Biospecimen Collection, Bone Scan, Chemotherapy, Computed Tomography, Exemestane, Letrozole, Oncotype DX Breast Cancer Assay, Positron Emission Tomography, Ribociclib Succinate
Drug · Procedure
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
1,978 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
224
States / cities
Jonesboro, Arkansas • Auburn, California • Berkeley, California + 185 more
Source: ClinicalTrials.gov public record
Updated Oct 29, 2026 · Synced Oct 29, 2026, 5:16 PM EDT
Active, not recruiting No phase listed Observational

Genetic Analysis in Blood and Tumor Samples From Patients With Advanced or Metastatic Estrogen Receptor Positive and HER2 Negative Breast Cancer Receiving Palbociclib and Endocrine Therapy

NCT03281902
View directory record Official record
Conditions
Advanced Breast Carcinoma, Locally Advanced Breast Carcinoma, Metastatic Breast Carcinoma, Recurrent Breast Carcinoma, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Biopsy, Biospecimen Collection, Laboratory Biomarker Analysis
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 29, 2026, 5:16 PM EDT
Completed Phase 2 Interventional Results available

Adjuvant Ribociclib With Endocrine Therapy in Hormone Receptor+/HER2- High Risk Early Breast Cancer

NCT03078751
View directory record Official record
Conditions
Breast Cancer
Interventions
Ribociclib, Adjuvant endocrine therapy, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
33
States / cities
Tucson, Arizona • Fayetteville, Arkansas • Bakersfield, California + 28 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2021 · Synced Oct 29, 2026, 5:16 PM EDT
Terminated Phase 1 Interventional Results available

Study of Infigratinib in Combination With Tamoxifen in Hormone Receptor Positive, HER2 Negative, FGFR Altered Advanced Breast Cancer

NCT04504331
View directory record Official record
Conditions
Breast Cancer, HER2-negative Breast Cancer, ER Positive Breast Cancer, PR-Positive Breast Cancer
Interventions
Infigratinib, Tamoxifen, Omnipaque 350, Iopamidol, Computed tomography (CT)
Drug · Diagnostic Test
Lead sponsor
Jennifer Lee Caswell-Jin
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Oct 29, 2026, 5:16 PM 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 30, 2019 · Synced Oct 29, 2026, 5:16 PM EDT
Active, not recruiting Phase 1 Interventional

A Study of Abemaciclib (LY2835219) in Participants With Non-Small Cell Lung Cancer or Breast Cancer

NCT02779751
View directory record Official record
Conditions
Non Small Cell Lung Cancer, Breast Cancer
Interventions
Abemaciclib, Pembrolizumab, Anastrozole
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
7
States / cities
Springdale, Arkansas • San Francisco, California • Aurora, Colorado + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Oct 29, 2026, 5:16 PM EDT
Active, not recruiting Phase 3 Interventional Results available

Tamoxifen Citrate, Letrozole, Anastrozole, or Exemestane With or Without Chemotherapy in Treating Patients With Invasive RxPONDER Breast Cancer

NCT01272037
View directory record Official record
Conditions
Breast Ductal Carcinoma In Situ, Invasive Breast Carcinoma, Multicentric Breast Carcinoma, Multifocal Breast Carcinoma, Synchronous Bilateral Breast Carcinoma
Interventions
Anastrozole, Exemestane, Laboratory Biomarker Analysis, Letrozole, Quality-of-Life Assessment, Systemic Chemotherapy, Tamoxifen Citrate
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
5,018 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2027
U.S. locations
1435
States / cities
Anniston, Alabama • Birmingham, Alabama • Mobile, Alabama + 881 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2026 · Synced Oct 29, 2026, 5:16 PM EDT
Recruiting Phase 1 Interventional

Clinical Trial of Avasopasem in Patients With Metastatic Hormone Receptor Positive Breast Cancer With Progression on a CDK 4/6 Inhibitor and Hormonal Therapy

NCT07137871
View directory record Official record
Conditions
Breast Cancer Metastatic
Interventions
Avasopasem
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
35 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 Oct 31, 2025 · Synced Oct 29, 2026, 5:16 PM EDT
Terminated Not applicable Interventional

A Feasibility Trial of a Web Based App Intervention in Hormone Positive Breast Cancer Patients to Improve Adherence to Endocrine Therapy

NCT05488145
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, HER2-Negative Breast Carcinoma, Hormone Receptor-Positive Breast Carcinoma
Interventions
Best Practice, Internet-Based Intervention, Questionnaire Administration, Survey Administration
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
4
States / cities
Atlanta, Georgia • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 29, 2026, 5:16 PM EDT
Recruiting Phase 2 Interventional

Anastrazole, Fulvestrant & Abemaciclib for HR+HER2- Metastatic Breast Cancer

NCT05524584
View directory record Official record
Conditions
Breast Cancer, Metastatic Breast Cancer, Hormone Receptor-positive Breast Cancer, HER2-negative Breast Cancer
Interventions
Fulvestrant, Anastrozole, Abemaciclib
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2031
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 29, 2026, 5:16 PM 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 29, 2026, 5:16 PM EDT