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ClinicalTrials.gov public records Last synced May 21, 2026, 6:22 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 153 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: PR-Positive Breast Cancer Clear all
Completed No phase listed Observational
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 17, 2017 · Synced May 21, 2026, 6:22 PM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Estrogen Receptor Positive, HER2/Neu Negative, Invasive Breast Carcinoma, Progesterone Receptor Positive
Interventions
Radiation Therapy, Therapeutic Conventional Surgery
Radiation · Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 1 Interventional Results available
View directory record Official record
Conditions
Solid Tumors, ER/PR Positive Breast Cancer, Triple Negative Breast Cancer, Metastatic Breast Cancer With Active Brain Metastasis
Interventions
Ferumoxytol, MM-398
Drug
Lead sponsor
Ipsen
Industry
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
7
States / cities
Scottsdale, Arizona • San Francisco, California • Tampa, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 26, 2019 · Synced May 21, 2026, 6:22 PM EDT
Withdrawn Phase 2 Interventional
View directory record Official record
Conditions
Ductal Breast Carcinoma in Situ, Estrogen Receptor-negative Breast Cancer, Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer, HER2-positive Breast Cancer, Invasive Ductal Breast Carcinoma, Invasive Lobular Breast Carcinoma, Male Breast Cancer, Medullary Ductal Breast Carcinoma With Lymphocytic Infiltrate, Mucinous Ductal Breast Carcinoma, Papillary Ductal Breast Carcinoma, Progesterone Receptor-negative Breast Cancer, Progesterone Receptor-positive Breast Cancer, Stage I Breast Cancer, Stage II Breast Cancer, Tubular Ductal Breast Carcinoma
Interventions
external beam radiation therapy, questionnaire administration, therapeutic conventional surgery
Radiation · Other · Procedure
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
3
States / cities
Cleveland, Ohio • Orange, Ohio • Westlake, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 7, 2011 · Synced May 21, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Anatomic Stage IA Breast Cancer AJCC v8, Anatomic Stage IB Breast Cancer AJCC v8, 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, Anatomic Stage IV Breast Cancer AJCC v8, Estrogen Receptor Negative, Healthy Subject, HER2 Positive Breast Carcinoma, HER2/Neu Negative, Luminal A Breast Carcinoma, Luminal B Breast Carcinoma, Progesterone Receptor Negative, Prognostic Stage I Breast Cancer AJCC v8, Prognostic Stage IA Breast Cancer AJCC v8, Prognostic Stage IB Breast Cancer AJCC v8, Prognostic Stage II 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, Prognostic Stage IV Breast Cancer AJCC v8, Triple-Negative Breast Carcinoma
Interventions
Aspiration of Breast, Biospecimen Collection
Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
40 Years and older · Female only
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 24, 2025 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
HER2/Neu Positive, Progesterone Receptor Positive, Recurrent Breast Carcinoma, Stage IA Breast Cancer AJCC v7, 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 IIIC Breast Cancer AJCC v7
Interventions
Cyclophosphamide, Docetaxel, Doxorubicin, Doxorubicin Hydrochloride, Laboratory Biomarker Analysis, Paclitaxel, Quality-of-Life Assessment, Trastuzumab
Drug · Other · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
3,270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2025
U.S. locations
1259
States / cities
Anniston, Alabama • Mobile, Alabama • Anchorage, Alaska + 797 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced May 21, 2026, 6:22 PM EDT
Active, not recruiting Phase 3 Interventional
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 May 21, 2026, 6:22 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Cancer, Stage IV Breast Cancer
Interventions
tamoxifen
Drug
Lead sponsor
ECOG-ACRIN Cancer Research Group
Network
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
292
States / cities
Birmingham, Alabama • Mobile, Alabama • Fort Smith, Arkansas + 203 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Arthralgia, Breast Cancer, Pain
Interventions
omega-3 fatty acid, placebo
Dietary Supplement · Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years to 120 Years · Female only
Enrollment
262 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
292
States / cities
Mobile, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 215 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2017 · Synced May 21, 2026, 6:22 PM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Breast Cancer
Interventions
Fulvestrant, Anastrozole, Everolimus, Placebo - Anastrozole, Placebo - Everolimus
Drug
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older · Female only
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
223
States / cities
Anchorage, Alaska • Scottsdale, Arizona • Tucson, Arizona + 150 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced May 21, 2026, 6:22 PM EDT
Withdrawn Phase 2 Interventional
View directory record Official record
Conditions
Stage IV (Metastatic) Breast Cancer, Metastatic Breast Cancer, ER Positive Breast Cancer, PR-Positive Breast Cancer, HER2-negative Breast Cancer, Invasive Breast Cancer
Interventions
NERATINIB, FULVESTRANT
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Boston, Massachusetts • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 31, 2023 · Synced May 21, 2026, 6:22 PM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Negative, Progesterone Receptor Negative, Recurrent Breast Carcinoma, Stage IV Breast Cancer, Triple-Negative Breast Carcinoma
Interventions
Carboplatin, Laboratory Biomarker Analysis, Pembrolizumab
Drug · Other · Biological
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 2, 2021 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Cancer
Interventions
Everolimus, Exemestane, Tamoxifen, Fulvestrant, Anastrozole, Letrozole, Toremifine
Drug
Lead sponsor
SCRI Development Innovations, LLC
Other
Eligibility
18 Years and older · Female only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
8
States / cities
Fort Myers, Florida • Hollywood, Florida • Pensacola, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2020 · Synced May 21, 2026, 6:22 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Breast Neoplasms
Interventions
pembrolizumab, paclitaxel, nab-paclitaxel, liposomal doxorubicin, capecitabine, normal saline, dextrose
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
41
States / cities
Birmingham, Alabama • Tucson, Arizona • Monterey, California + 33 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Cancer
Interventions
suberoylanilide hydroxamic acid (SAHA, Vorinostat), tamoxifen citrate (Tamoxifen)
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
8
States / cities
San Francisco, California • Boynton Beach, Florida • Orlando, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2014 · Synced May 21, 2026, 6:22 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Neoplasm, Hormone Receptor Positive Breast Carcinoma
Interventions
Abemaciclib, Fulvestrant
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Jun 5, 2023 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Cancer
Interventions
Ribociclib, Everolimus, Exemestane
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
25
States / cities
Chandler, Arizona • Fayetteville, Arkansas • Los Angeles, California + 20 more
Source: ClinicalTrials.gov public record
Updated May 4, 2021 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Adult Solid Neoplasm, Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Negative, Male Breast Carcinoma, Progesterone Receptor Negative, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer, Triple-Negative Breast Carcinoma
Interventions
Carboplatin, Laboratory Biomarker Analysis, Paclitaxel, Pharmacological Study, Veliparib
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
3
States / cities
Hershey, Pennsylvania • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 24, 2015 · Synced May 21, 2026, 6:22 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
lapatinib
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2018
U.S. locations
3
States / cities
Kansas City, Kansas • Topeka, Kansas • Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 30, 2019 · Synced May 21, 2026, 6:22 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Breast Cancer
Interventions
gene expression analysis, immunohistochemistry staining method, laboratory biomarker analysis
Genetic · Other
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
Not listed
Enrollment
460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 31, 2022 · Synced May 21, 2026, 6:22 PM EDT
Active, not recruiting Not applicable Interventional Results available
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, Musculoskeletal Complications, Progesterone Receptor-positive Breast Cancer, Recurrent Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer
Interventions
anastrozole
Drug
Lead sponsor
ECOG-ACRIN Cancer Research Group
Network
Eligibility
18 Years and older · Female only
Enrollment
1,046 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts • East Orange, New Jersey
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Estrogen Receptor Positive, KIT Positive, PDGFR Positive, Postmenopausal, Progesterone Receptor Positive, Prognostic Stage IV Breast Cancer AJCC v8
Interventions
Imatinib Mesylate, Letrozole
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Female only
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2020 · Synced May 21, 2026, 6:22 PM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, Progesterone Receptor-negative Breast Cancer, Progesterone Receptor-positive Breast Cancer, Recurrent Breast Cancer, Stage IV Breast Cancer
Interventions
F-18 16 alpha-fluoroestradiol, fludeoxyglucose F 18, positron emission tomography, computed tomography, laboratory biomarker analysis
Radiation · Procedure · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 18, 2020 · Synced May 21, 2026, 6:22 PM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
HER2-positive Breast Cancer, HER2 Low, SYD-985, SYD985, Vic-trastuzumab Duocarmazine, Metastatic Cancer, Metastatic Breast Cancer, Metastatic Gastrointestinal Carcinoid Tumor, Metastatic, HER2 Low Breast Cancer, GastroEsophageal Cancer, Gastroesophageal Adenocarcinoma, Endometrium Tumor, Ovarian Cancer, Ovarian Carcinoma, HER2-positive Gastric Cancer, HER2-positive Metastatic Breast Cancer, HER2 Mutation-Related Tumors, HER-2 Protein Overexpression, HER2 Low HR Positive, HR Positive, Hormone Receptor-positive Breast Cancer, Estrogen Receptor Positive Tumor, Progesterone Receptor-positive Breast Cancer, Triple Negative Breast Cancer, Hormone Receptor Negative Breast Carcinoma, Bladder Cancer
Interventions
Vic-trastuzumab duocarmazine (SYD985) + paclitaxel
Drug
Lead sponsor
QuantumLeap Healthcare Collaborative
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced May 21, 2026, 6:22 PM EDT