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ClinicalTrials.gov public records Last synced Jun 10, 2026, 5:33 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Estrogen Receptor Positive Tumor Clear all
Completed Phase 3 Interventional Results available

Docetaxel, Carboplatin, Trastuzumab, and Pertuzumab With or Without Estrogen Deprivation in Treating Patients With Hormone Receptor-Positive, HER2-Positive Operable or Locally Advanced Breast Cancer

NCT02003209
View directory record Official record
Conditions
HER2-Positive Breast Carcinoma, Hormone Receptor-Positive Breast Carcinoma, Stage IB Breast Cancer AJCC v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7
Interventions
Aromatase Inhibition Therapy, Carboplatin, Cytology Specimen Collection Procedure, Docetaxel, Goserelin Acetate, Laboratory Biomarker Analysis, Pertuzumab, Quality-of-Life Assessment, Therapeutic Conventional Surgery, Trastuzumab, Whole Breast Irradiation
Drug · Other · Biological + 2 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2025
U.S. locations
731
States / cities
Fairbanks, Alaska • Hot Springs, Arkansas • Anaheim, California + 465 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Jun 10, 2026, 5:33 AM EDT
Completed Phase 2 Interventional

Biological and Clinical Effects of Palbociclib With Ovarian Suppression and Letrozole in the Neoadjuvant Treatment of Breast Cancer

NCT03628066
View directory record Official record
Conditions
Breast Cancer
Interventions
Letrozole, Palbociclib, Goserelin, Oncotype DX Breast Recurrence Score
Drug · Diagnostic Test
Lead sponsor
NSABP Foundation Inc
Network
Eligibility
18 Years and older · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
11
States / cities
Fountain Valley, California • Laguna Hills, California • Long Beach, California + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 19, 2022 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Phase 2 Interventional Results available

A Phase II Study Comparing The Efficacy Of Venetoclax + Fulvestrant Vs. Fulvestrant In Women With Estrogen Receptor-Positive, Her2-Negative Locally Advanced Or Metastatic Breast Cancer Who Experienced Disease Recurrence Or Progression During Or After CDK4/6 Inhibitor Therapy

NCT03584009
View directory record Official record
Conditions
Estrogen Receptor-positive (ER+)/Human Epidermal Growth Factor Receptor (HER2)-Negative Locally Advanced or Metastatic Breast Cancer
Interventions
Venetoclax, Fulvestrant
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older · Female only
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
21
States / cities
Phoenix, Arizona • Springdale, Arkansas • La Jolla, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jun 27, 2022 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Early Phase 1 Interventional

[18F]Fluoroestradiol-PET/CT Companion Imaging Study to the FORESEE Trial

NCT04727632
View directory record Official record
Conditions
Estrogen Receptor Positive Breast Cancer
Interventions
[18F]Fluoroestradiol (FES) PET/CT
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 27, 2024 · Synced Jun 10, 2026, 5:33 AM EDT
Recruiting Phase 2 Interventional

ALPINE: Maintenance Letrozole/Abemaciclib

NCT06366347
View directory record Official record
Conditions
Endometrial Cancer, Recurrent Endometrial Cancer, TP53
Interventions
Abemaciclib, Letrozole, Pembrolizumab
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
6
States / cities
Boston, Massachusetts • Foxborough, Massachusetts • Milford, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Jun 10, 2026, 5:33 AM EDT
Completed Phase 2 Interventional Results available

Lapatinib and Bevacizumab for Metastatic Breast Cancer

NCT00444535
View directory record Official record
Conditions
Neoplasms, Breast
Interventions
lapatinib, bevacizumab
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2020
U.S. locations
9
States / cities
Tucson, Arizona • San Francisco, California • Hollywood, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 24, 2021 · Synced Jun 10, 2026, 5:33 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Palbociclib With Everolimus + Exemestane In BC

NCT02871791
View directory record Official record
Conditions
Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, Hormone Receptor (HR)-Positive Breast Cancer
Interventions
Palbociclib, Everolimus, Exemestane
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 28, 2022 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Phase 2 Interventional Results available

Phase II of Naltrexone in Hormone-Refractory Metastatic Breast Cancer

NCT00379197
View directory record Official record
Conditions
Breast Cancer
Interventions
naltrexone, PET scan
Drug · Procedure
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years and older · Female only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2013
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 27, 2017 · Synced Jun 10, 2026, 5:33 AM EDT
Completed Not applicable Interventional

Non-Hormonal Vaginal Moisturizer in Hormone-Receptor Positive Postmenopausal Cancer Survivors Experiencing Estrogen Deprivation Symptoms on Vulvovaginal Health

NCT01738152
View directory record Official record
Conditions
Breast Cancer, Endometrial Cancer
Interventions
HLA vaginal gel (HyaloGYN®),, questionnaires
Other · Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Phase 2 Interventional Results available

Palbociclib in Treating Patients With Metastatic HER-2 Positive Breast Cancer With Brain Metastasis

NCT02774681
View directory record Official record
Conditions
Breast Carcinoma Metastatic in the Brain, Estrogen Receptor Negative, HER2/Neu Negative, HER2/Neu Positive, Progesterone Receptor Negative, Recurrent Breast Carcinoma, Stage IV Breast Cancer
Interventions
Cognitive Assessment, Palbociclib, Quality-of-Life Assessment, Trastuzumab
Procedure · Drug · Biological
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
3
States / cities
Chicago, Illinois • Lake Forest, Illinois • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 13, 2020 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Atezolizumab and Cobimetinib or Idasanutlin in Participants With Stage IV or Unresectable Recurrent Estrogen Receptor Positive Breast Cancer

NCT03566485
View directory record Official record
Conditions
Stage III Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer, Estrogen Receptor-positive, HER2/Neu Negative
Interventions
Atezolizumab, Cobimetinib, Idasanutlin
Drug
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 10, 2021 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Phase 2 Interventional Results available

Study of BN83495 in Post-menopausal Women With Endometrial Cancer Post-chemotherapy

NCT01251354
View directory record Official record
Conditions
Endometrial Cancer
Interventions
BN83495
Drug
Lead sponsor
Ipsen
Industry
Eligibility
18 Years and older · Female only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
4
States / cities
Augusta, Georgia • Minneapolis, Minnesota • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2019 · Synced Jun 10, 2026, 5:33 AM EDT
Completed Phase 1 Interventional

MK2206 in Combination With Anastrozole, Fulvestrant, or Anastrozole and Fulvestrant in Treating Postmenopausal Women With Metastatic Breast Cancer

NCT01344031
View directory record Official record
Conditions
Estrogen Receptor Positive, Invasive Breast Carcinoma, Recurrent Breast Carcinoma, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Akt Inhibitor MK2206, Anastrozole, Fulvestrant, Laboratory Biomarker Analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 22, 2018 · Synced Jun 10, 2026, 5:33 AM EDT
Completed Phase 2 Interventional

Fulvestrant (FASLODEX™) as a Treatment in Postmenopausal Women With Estrogen Receptor Positive Breast Cancer

NCT00093002
View directory record Official record
Conditions
Breast Cancer
Interventions
Fulvestrant
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
Female only
Enrollment
179 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
7
States / cities
Little Rock, Arkansas • Boston, Massachusetts • Winchester, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2008 · Synced Jun 10, 2026, 5:33 AM 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
2027 – 2029
U.S. locations
14
States / cities
Bloomington, Illinois • Canton, Illinois • Carthage, Illinois + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Phase 4 Interventional

Effect of HSD3B1 (1245C) Gene Mutation on Treatment of Stage I-III Breast Cancer

NCT05183828
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Breast Adenocarcinoma, Invasive Breast Carcinoma of No Special Type
Interventions
Biospecimen Collection, Letrozole, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older · Female only
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jun 10, 2026, 5:33 AM EDT
Active, not recruiting Phase 3 Interventional

Study of PF-07220060 With Letrozole in Adults With HR-positive HER2-negative Breast Cancer Who Have Not Received Anticancer Treatment for Advanced/Metastatic Disease

NCT06760637
View directory record Official record
Conditions
Breast Cancer
Interventions
PF-07220060, letrozole, abemaciclib, palbociclib, ribociclib
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,035 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2037
U.S. locations
218
States / cities
Birmingham, Alabama • Chandler, Arizona • Gilbert, Arizona + 135 more
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Jun 10, 2026, 5:33 AM EDT
Completed Phase 3 Interventional Results available

Zoledronic Acid - Letrozole Adjuvant Synergy Trial (ZFAST) - Cancer Treatment Related Bone Loss in Postmenopausal Women With Estrogen Receptor Positive and/or Progesterone Receptor Positive Breast Cancer Receiving Adjuvant Hormonal Therapy

NCT00050011
View directory record Official record
Conditions
Breast Neoplasms, Osteoporosis
Interventions
Zoledronic Acid, Letrozole
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 85 Years · Female only
Enrollment
602 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2009
U.S. locations
43
States / cities
Springdale, Arkansas • Burbank, California • Lafayette, California + 39 more
Source: ClinicalTrials.gov public record
Updated Mar 20, 2014 · Synced Jun 10, 2026, 5:33 AM EDT
Recruiting Phase 2 Interventional

Reishi Mushroom Extract for Fatigue and/or Arthralgias/Myalgias in Patients With Breast Cancer on Aromatase Inhibitors

NCT06028022
View directory record Official record
Conditions
Estrogen Receptor-Positive Breast Carcinoma
Interventions
Mushroom Extract, Placebo Administration, Quality-of-Life Assessment, Questionnaire Administration
Dietary Supplement · Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
23
States / cities
Albert Lea, Minnesota • Baxter, Minnesota • Bemidji, Minnesota + 19 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2025 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Not applicable Interventional Results available

Preoperative Stereotactic Ablative Body Radiotherapy (SABR) for Early-Stage Breast Cancer

NCT03137693
View directory record Official record
Conditions
Breast Cancer, Breast Cancer Female, Breast Adenocarcinoma
Interventions
Standard of Care Schedule Variation: SABR, Breast-conserving Surgery
Other · Procedure
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
50 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Jun 10, 2026, 5:33 AM EDT
Completed No phase listed Observational

Chemotherapy Decisions and Outcomes in Older Women With Newly Diagnosed Breast Cancer

NCT00068328
View directory record Official record
Conditions
Breast Cancer, Psychosocial Effects of Cancer and Its Treatment
Interventions
psychosocial assessment and care, quality-of-life assessment
Procedure
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
65 Years and older · Female only
Enrollment
1,706 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2016
U.S. locations
85
States / cities
Mountain View, California • Palo Alto, California • Pismo Beach, California + 66 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2017 · Synced Jun 10, 2026, 5:33 AM EDT
Terminated Phase 2 Interventional

Letrozole and Goserelin or Leuprolide in Treating Premenopausal Estrogen Receptor-Positive Patients With Stage IV Breast Cancer

NCT00498901
View directory record Official record
Conditions
Breast Cancer
Interventions
goserelin, letrozole, leuprolide acetate, conventional surgery
Drug · Procedure
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 8, 2013 · Synced Jun 10, 2026, 5:33 AM EDT
Recruiting Phase 1Phase 2 Interventional

First-in-Human Study of Tersolisib (STX-478) as Monotherapy and in Combination With Other Antineoplastic Agents in Participants With Advanced Solid Tumors

NCT05768139
View directory record Official record
Conditions
Breast Cancer, Solid Tumors, Adult
Interventions
STX-478, Fulvestrant, Ribociclib, Palbociclib, Letrozole, Anastrozole, Exemestane, Tamoxifen, Abemaciclib, Imlunestrant, Metformin
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
880 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
28
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 22 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jun 10, 2026, 5:33 AM EDT
Completed Phase 2 Interventional Results available

Lapatinib and Tamoxifen in Treating Patients With Locally Advanced or Metastatic Breast Cancer That Did Not Respond to Previous Tamoxifen

NCT00118157
View directory record Official record
Conditions
Estrogen Receptor Positive, Male Breast Carcinoma, Progesterone Receptor Positive, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Laboratory Biomarker Analysis, Lapatinib Ditosylate, Tamoxifen Citrate
Other · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2014
U.S. locations
2
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 3, 2017 · Synced Jun 10, 2026, 5:33 AM EDT