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ClinicalTrials.gov public records Last synced Nov 14, 2026, 10:42 PM EST

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Showing 25–48 of 405 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: ER Positive Breast Cancer Clear all
Completed Phase 2 Interventional Results available

Phase II Trial for Large ER-Negative Breast Cancers

NCT01869192
View directory record Official record
Conditions
Malignant Neoplasm of Female Breast
Interventions
Epirubicin, Cyclophosphamide, Docetaxel, Capecitabine, Radiation Therapy
Drug · Radiation
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older · Female only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2010
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 24, 2019 · Synced Nov 14, 2026, 10:42 PM EST
Completed Phase 2 Interventional Results available

Efficacy and Safety Study of Enzalutamide in Combination With Exemestane in Patients With Advanced Breast Cancer

NCT02007512
View directory record Official record
Conditions
Breast Cancer
Interventions
Enzalutamide, exemestane, Placebo (for enzalutamide)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2024
U.S. locations
89
States / cities
Aurora, Colorado • Colorado Springs, Colorado • Lakewood, Colorado + 54 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2025 · Synced Nov 14, 2026, 10:42 PM EST
Suspended Phase 3 Interventional

Testing Low Dose Tamoxifen for Invasive Breast Cancer, LoTam Trial

NCT06671912
View directory record Official record
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage 1 Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma, Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ
Interventions
Anastrozole, Letrozole, Exemestane, Tamoxifen, Mammogram, Magnetic Resonance Imaging, Dual X-ray Absorptiometry, Biospecimen Collection, Questionnaire Administration
Drug · Procedure · Biological + 1 more
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
1,556 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
728
States / cities
Anchorage, Alaska • Gilbert, Arizona • Goodyear, Arizona + 559 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Completed Not applicable Interventional

Exercise Intervention After Cancer Treatment for Improving Health in Stage II-III Breast Cancer Survivors

NCT03523195
View directory record Official record
Conditions
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Cancer Survivor, Estrogen Receptor Positive, HER2/Neu Negative, Progesterone Receptor Positive, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8, Sedentary Lifestyle
Interventions
Exercise Intervention, Informational Intervention, Laboratory Biomarker Analysis, Monitoring Device, Questionnaire Administration, Physical Performance Testing
Behavioral · Other · Device
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
19 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Nov 14, 2026, 10:42 PM EST
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 3, 2018 · Synced Nov 14, 2026, 10:42 PM EST
Recruiting Not applicable Interventional

Breast Re-irradiation After Second Ipsilateral Lumpectomy

NCT06867484
View directory record Official record
Conditions
Breast Cancer, Cancer, Cancer of the Breast, HER2-negative Breast Cancer, ER+ Breast Cancer, Estrogen-receptor-positive Breast Cancer
Interventions
Intensity modulated radiation therapy (IMRT)
Radiation
Lead sponsor
Youssef Zeidan
Other
Eligibility
40 Years and older · Female only
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2033
U.S. locations
2
States / cities
Boca Raton, Florida • Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Nov 14, 2026, 10:42 PM EST
Recruiting Phase 2 Interventional

Stereotactic Body Radiation Therapy and FES PET/CT Imaging for the Treatment of Oligoprogressive Estrogen Receptor Positive Metastatic Breast Cancer

NCT06260033
View directory record Official record
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, Metastatic Breast Carcinoma
Interventions
Biospecimen Collection, Bone Scan, Computed Tomography, F-18 16 Alpha-Fluoroestradiol, Positron Emission Tomography, Questionnaire Administration, Stereotactic Body Radiation Therapy
Procedure · Drug · Other + 1 more
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
Duarte, California • Irvine, California
Source: ClinicalTrials.gov public record
Updated Nov 9, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Recruiting Phase 1Phase 2 Interventional

Elacestrant in Advanced Triple Positive Breast Cancer

NCT07612215
View directory record Official record
Conditions
ER Positive, HER2 Positive Breast Cancer
Interventions
Elacestrant, Trastuzumab, Pertuzumab
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Completed Phase 1 Interventional

Phase Ib, Dose Escalation Study of Oral LDE225 in Combination With BKM120 in Patients With Advanced Solid Tumors

NCT01576666
View directory record Official record
Conditions
Dose Escalation, Safety, Preliminary Efficacy, Advanced Solid Tumors, Metastatic Breast Cancer, Advanced Pancreatic Adenocarcinoma, Metastatic Colorectal Cancer, Recurrent Glioblastoma Multiforme, Gastric Cancer, Gastroesophageal Junction Cancer, Triple Negative Metastatic Breast Cancer, Hormone Receptor Positive (ER+/PR+, and Her2-) Metastatic Breast Cancer
Interventions
LDE225, BKM120
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
13
States / cities
Los Angeles, California • San Francisco, California • Tampa, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2020 · Synced Nov 14, 2026, 10:42 PM EST
Completed No phase listed Observational

Quality of Life, Employment, and Informal Care Costs in Women Who Are Receiving Chemotherapy for Breast Cancer

NCT00115505
View directory record Official record
Conditions
Breast Carcinoma
Interventions
quality-of-life assessment, Questionnaire Administration
Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Female only
Enrollment
307 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2016
U.S. locations
227
States / cities
Mobile, Alabama • Fort Smith, Arkansas • Fresno, California + 154 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2017 · Synced Nov 14, 2026, 10:42 PM EST
Completed Phase 2 Interventional Results available

TAK-228 Plus Tamoxifen in Patients With ER-Positive, HER2-negative Breast Cancer

NCT02988986
View directory record Official record
Conditions
Estrogen Receptor Positive Breast Cancer
Interventions
TAK-228, Tamoxifen
Drug
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
3
States / cities
Houston, Texas • Sugar Land, Texas
Source: ClinicalTrials.gov public record
Updated Sep 22, 2021 · Synced Nov 14, 2026, 10:42 PM EST
Completed Phase 2 Interventional Results available

Fulvestrant With or Without Bortezomib in Patients With Inoperable Locally Advanced or Metastatic Estrogen Receptor Positive Breast Cancer

NCT01142401
View directory record Official record
Conditions
Metastatic Breast Carcinoma, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Bortezomib, Fulvestrant, Laboratory Biomarker Analysis
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2021
U.S. locations
21
States / cities
Farmington, Connecticut • New Haven, Connecticut • Weston, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 27, 2023 · Synced Nov 14, 2026, 10:42 PM EST
Terminated Phase 2 Interventional Results available

A Study to Assess the Safety and Efficacy of the VEGFR-FGFR-PDGFR Inhibitor, Lucitanib, Given to Patients With Metastatic Breast Cancer

NCT02202746
View directory record Official record
Conditions
Breast Cancer, Metastatic Breast Cancer, MBC, HER2 Positive, HER2, Estrogen Receptor Positive, ER, Triple Negative
Interventions
Lucitanib
Drug
Lead sponsor
Clovis Oncology, Inc.
Industry
Eligibility
18 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
33
States / cities
Sedona, Arizona • Bakersfield, California • Fullerton, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2020 · Synced Nov 14, 2026, 10:42 PM EST
Active, not recruiting Phase 2 Interventional Results available

Neoadjuvant Pembrolizumab + Decitabine Followed by Std Neoadj Chemo for Locally Advanced HER2- Breast Ca

NCT02957968
View directory record Official record
Conditions
Breast Adenocarcinoma, Estrogen Receptor- Negative Breast Cancer, Estrogen Receptor-positive Breast Cancer, HER2/Neu Negative, Invasive Breast Carcinoma, Progesterone Receptor Negative, Progesterone Receptor Positive Tumor, Stage II Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Triple-negative Breast Carcinoma
Interventions
Doxorubicin, Cyclophosphamide, Paclitaxel, Carboplatin, Decitabine, Pembrolizumab
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
4
States / cities
Edgewood, Kentucky • Columbus, Ohio • Charlottesville, Virginia + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Completed Early Phase 1 Interventional

Broccoli Sprout Extract in Treating Patients With Breast Cancer

NCT01753908
View directory record Official record
Conditions
Ductal Breast Carcinoma, Ductal Breast Carcinoma In Situ, Estrogen Receptor Negative, Estrogen Receptor Positive, Invasive Breast Carcinoma, Lobular Breast Carcinoma, Postmenopausal, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer
Interventions
Broccoli Sprout Extract, Laboratory Biomarker Analysis, Pharmacological Study, Placebo
Drug · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
21 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Nov 14, 2026, 10:42 PM EST
Completed Phase 3 Interventional

Octreotide, Tamoxifen, and Chemotherapy in Treating Women With Breast Cancer

NCT00002967
View directory record Official record
Conditions
Breast Cancer
Interventions
cyclophosphamide, doxorubicin hydrochloride, octreotide pamoate, tamoxifen citrate
Drug
Lead sponsor
NSABP Foundation Inc
Network
Eligibility
Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2006
U.S. locations
106
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 87 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2013 · Synced Nov 14, 2026, 10:42 PM EST
Active, not recruiting Phase 1Phase 2 Interventional

A Study to Learn About the Study Medicine (Called PF-07220060 in Combination With PF-07104091) In Participants With Breast Cancer and Solid Tumors

NCT05262400
View directory record Official record
Conditions
Breast Cancer, Solid Tumors
Interventions
PF-07220060 + PF-07104091 combination dose escalation, PF-07104091 + PF-07220060 + fulvestrant dose expansion, PF-07104091 + PF-07220060 + letrozole dose expansion
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
12
States / cities
Los Angeles, California • Santa Monica, California • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Not yet recruiting Not applicable Interventional

Adjuvant Endocrine Therapy Adherence Intervention Pilot in Rwanda

NCT07562399
View directory record Official record
Conditions
Medication Adherence, Breast Cancer
Interventions
Educational video, Symptom monitoring card, Text reminders
Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 20, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Active, not recruiting Phase 2 Interventional Results available

A Study to Investigate Efficacy and Safety With Oral AZD9833 Compared With Intramuscular Fulvestrant in Post-menopausal Women at Least 18 Years of Age With Advanced ER-positive HER2 Negative Breast Cancer

NCT04214288
View directory record Official record
Conditions
Advanced ER-Positive HER2-Negative Breast Cancer
Interventions
AZD9833, Fulvestrant
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years · Female only
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
9
States / cities
Birmingham, Alabama • Long Beach, California • Fort Myers, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Recruiting Not applicable Interventional

Short-Term Reduced Dietary Protein in ER+/HER2- Breast Cancer Patients During Neoadjuvant Chemotherapy

NCT07897344
View directory record Official record
Conditions
Breast Cancer, Hormone Receptor Positive / HER2-negative Breast Cancer
Interventions
Dietary Protein Intervention
Other
Lead sponsor
Josephine Connolly-Schoonen
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Nov 6, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Terminated Phase 1 Interventional

Hydroxychloroquine in Metastatic Estrogen Receptor-Positive Breast Cancer Progressing on Hormonal Therapy

NCT02414776
View directory record Official record
Conditions
Estrogen Receptor Positive Breast Cancer
Interventions
hydroxychloroquine
Drug
Lead sponsor
Western Regional Medical Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Goodyear, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 27, 2017 · Synced Nov 14, 2026, 10:42 PM EST
Terminated Not applicable Interventional

A Breast Cancer Treatment Decision Aid for Women Aged 70 and Older

NCT02823262
View directory record Official record
Conditions
Breast Cancer, Estrogen Receptor Positive Breast Cancer, Node-negative Breast Cancer, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast
Interventions
Breast Cancer Treatment Decision Aid for women 70+, Usual Care
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
70 Years and older · Female only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 5, 2024 · Synced Nov 14, 2026, 10:42 PM EST
Active, not recruiting Phase 3 Interventional

Fulvestrant and/or Anastrozole in Treating Postmenopausal Patients With Stage II-III Breast Cancer Undergoing Surgery

NCT01953588
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer, Invasive Ductal Breast Carcinoma, Invasive Lobular Breast Carcinoma, Recurrent Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer
Interventions
fulvestrant, anastrozole
Drug
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Female only
Enrollment
1,473 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2027
U.S. locations
856
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 524 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Nov 14, 2026, 10:42 PM EST
Completed Not applicable Interventional

S1200: Acupuncture, Sham Acupuncture, or Wait List for Joint Symptoms Related to Aromatase Inhibitors in Pts W/Early-Stage Breast Cancer

NCT01535066
View directory record Official record
Conditions
Breast Cancer, Pain
Interventions
acupuncture therapy, sham acupuncture
Procedure
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older · Female only
Enrollment
226 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
47
States / cities
Antioch, California • Fremont, California • Los Angeles, California + 36 more
Source: ClinicalTrials.gov public record
Updated Dec 7, 2022 · Synced Nov 14, 2026, 10:42 PM EST