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ClinicalTrials.gov public records Last synced May 22, 2026, 2:52 AM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Estrogen-receptor-positive Breast Cancer Clear all
Withdrawn Phase 2 Interventional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 22, 2026, 2:52 AM EDT
Active, not recruiting Phase 2 Interventional Results available
View directory record Official record
Conditions
Estrogen Receptor Positive, Primary or Recurrent Breast Carcinoma, Stage IV Breast Cancer AJCC v6 and v7
Interventions
F-18 16 Alpha-Fluoroestradiol, Positron Emission Tomography, Computed Tomography, Fludeoxyglucose F-18, Laboratory Biomarker Analysis
Drug · Procedure · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2041
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced May 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Advanced Breast Cancer
Interventions
Dexamethasone based mouthwash, Everolimus, Exemestane
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
23
States / cities
Fayetteville, Arkansas • Anaheim, California • Los Angeles, California + 17 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2017 · Synced May 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Neoplasms
Interventions
Tamoxifen, Vorinostat, Pembrolizumab
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 6, 2020 · Synced May 22, 2026, 2:52 AM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Breast Cancer, Locally Advanced Breast Cancer, Metastatic Breast Cancer, ER Positive Breast Cancer, HER2 Negative Breast Carcinoma
Interventions
Palazestrant, Letrozole-matching placebo, Ribociclib, Letrozole, Palazestrant matching-placebo
Drug
Lead sponsor
Olema Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
28
States / cities
Hot Springs, Arkansas • Beverly Hills, California • Santa Barbara, California + 25 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced May 22, 2026, 2:52 AM EDT
Completed Early Phase 1 Interventional
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 30, 2019 · Synced May 22, 2026, 2:52 AM EDT
Withdrawn Not applicable Interventional
View directory record Official record
Conditions
Breast Neoplasm
Interventions
F-18 FES, F-18 FDG
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
40 Years to 90 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced May 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM EDT
Completed Phase 3 Interventional Results available
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 May 22, 2026, 2:52 AM EDT
Completed Early Phase 1 Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
Letrozole, Fish Oil
Drug · Dietary Supplement
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
2
States / cities
Houston, Texas • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 16, 2023 · Synced May 22, 2026, 2:52 AM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Breast Cancer, ER-positive Breast Cancer, HER2-negative Breast Cancer, Metastatic Breast Cancer
Interventions
AI+CDK4/6i, SERD+CDK4/6i, mTOR inhibitor + AI, mTOR inhibitor + SERD, mTOR inhibitor + Selective estrogen receptor modulator, PI3K inhibitor + SERD, PI3K inhibitor + AI, Chemotherapy, Oral SERD, PARPi, AKT inhibitor, Step 3 Arm 2
Drug · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced May 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM EDT
Active, not recruiting Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Neoplasms
Interventions
PD0332991, Anastrozole, Goserelin, Surgery (standard of care), Tumor biopsy
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
4
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Rochester, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced May 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM 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 22, 2026, 2:52 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Triple-negative Breast Cancer, Non-squamous Non-small-cell Lung Cancer, NSCLC, Estrogen-receptor-positive Breast Cancer, Progesterone-receptor-positive Breast Cancer, Estrogen-receptor-negative Breast Cancer, ER-negative Breast Cancer, Progesterone-receptor Negative Breast Cancer, PR-negative Breast Cancer, HER2-negative Breast Cancer, ER-positive Breast Cancer, PR-positive Breast Cancer, Platinum-resistant Ovarian Cancer, Gastric Cancer, Pancreatic Cancer
Interventions
Zilovertamab vedotin
Drug
Lead sponsor
VelosBio Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
8
States / cities
Hollywood, Florida • Orlando, Florida • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced May 22, 2026, 2:52 AM EDT