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ClinicalTrials.gov public records Last synced Sep 25, 2026, 7:14 AM EDT

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Showing 1–24 of 340 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Estrogen Receptor Positive Tumor Clear all
Active, not recruiting Phase 3 Interventional Results available

A Study to Learn About a New Medicine Called Vepdegestrant (ARV-471, PF-07850327) in People Who Have Advanced Metastatic Breast Cancer

NCT05654623
View directory record Official record
Conditions
Advanced Breast Cancer
Interventions
ARV-471, Fulvestrant
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
624 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
87
States / cities
Encinitas, California • Fountain Valley, California • Fresno, California + 69 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Sep 25, 2026, 7:14 AM EDT
Completed Phase 2 Interventional Results available

Pembrolizumab and Carboplatin in Treating Patients With Circulating Tumor Cells Positive Metastatic Breast Cancer

NCT03213041
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
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 25, 2026, 7:14 AM EDT
Recruiting Phase 3 Interventional

A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.

NCT07062965
View directory record Official record
Conditions
Breast Cancer
Interventions
PF-07248144, Fulvestrant, Everolimus, Exemestane
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
102
States / cities
Chandler, Arizona • Gilbert, Arizona • Glendale, Arizona + 85 more
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 25, 2026, 7:14 AM EDT
Completed Phase 2 Interventional Results available

Study of Dasatinib (BMS-354825) in Patients With Advanced Estrogen/Progesterone Receptor-positive (ER+/PR+) or Her2/Neu-positive (Her2/Neu+)Breast Cancer

NCT00371345
View directory record Official record
Conditions
Breast Cancer, Metastasis
Interventions
Dasatinib, Dasatinib 100 mg
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older · Female only
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
7
States / cities
San Francisco, California • Jacksonville, Florida • Boston, Massachusetts + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2011 · Synced Sep 25, 2026, 7:14 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 Sep 25, 2026, 7:14 AM EDT
Completed Phase 2 Interventional Results available

Letrozole and Imatinib Mesylate in Treating Postmenopausal Participants With Estrogen or Progesterone Positive Metastatic Breast Cancer

NCT00338728
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 Sep 25, 2026, 7:14 AM EDT
Completed Phase 2 Interventional Results available

Cabozantinib +/- Trastuzumab In Breast Cancer Patients w/ Brain Metastases

NCT02260531
View directory record Official record
Conditions
Breast Cancer, Brain Tumor - Metastatic
Interventions
Cabozantinib, Trastuzumab
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 19, 2021 · Synced Sep 25, 2026, 7:14 AM EDT
Completed Phase 3 Interventional Results available

Testosterone in Treating Postmenopausal Patients With Arthralgia Caused by Adjuvant Aromatase Inhibitor Treatment

NCT01573442
View directory record Official record
Conditions
Arthralgia, Breast Cancer, Hot Flashes, Musculoskeletal Complications, Sexual Dysfunction
Interventions
testosterone, placebo
Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Female only
Enrollment
227 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
528
States / cities
Anchorage, Alaska • Hot Springs, Arkansas • Auburn, California + 331 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Sep 25, 2026, 7:14 AM EDT
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 Jun 30, 2026 · Synced Sep 25, 2026, 7:14 AM EDT
Completed Phase 2 Interventional Results available

F-18 16 Alpha-Fluoroestradiol-Labeled Positron Emission Tomography in Predicting Response to First-Line Hormone Therapy in Patients With Stage IV Breast Cancer

NCT00602043
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 Sep 25, 2026, 7:14 AM EDT
Active, not recruiting Phase 3 Interventional Results available

S1207 Hormone Therapy With or Without Everolimus in Treating Patients With Breast Cancer

NCT01674140
View directory record Official record
Conditions
Breast Cancer
Interventions
anastrozole, everolimus, exemestane, goserelin acetate, letrozole, leuprolide acetate, tamoxifen citrate, placebo
Drug · Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
1,939 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2030
U.S. locations
1455
States / cities
Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 887 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Sep 25, 2026, 7:14 AM EDT
Recruiting Phase 1Phase 2 Interventional

A Study to Evaluate the Effect of GDC-4198 Alone and in Combination With Giredestrant Versus Abemaciclib and Giredestrant in Participants With Locally Advanced or Metastatic Estrogen Receptor-Positive (ER+), Human Epidermal Growth Factor Receptor-Negative (HER2-) Breast Cancer

NCT07100106
View directory record Official record
Conditions
Breast Cancer
Interventions
GDC-4198, Giredestrant, Abemaciclib
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
285 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
28
States / cities
Tucson, Arizona • Duarte, California • Irvine, California + 24 more
Source: ClinicalTrials.gov public record
Updated Sep 7, 2026 · Synced Sep 25, 2026, 7:14 AM EDT
Completed Phase 2 Interventional

Study of Tamoxifen in Well Differentiated Neuroendocrine Tumors and Hormone Receptor Positive Expression

NCT03870399
View directory record Official record
Conditions
Neuroendocrine Tumors, Progesterone Receptor Positive Tumor, Estrogen Receptor Positive Tumor
Interventions
Tamoxifen
Drug
Lead sponsor
AC Camargo Cancer Center
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 5, 2024 · Synced Sep 25, 2026, 7:14 AM EDT
Terminated Phase 1 Interventional

A Study of AC682 for the Treatment of Locally Advanced or Metastatic ER+ Breast Cancer

NCT05080842
View directory record Official record
Conditions
Breast Cancer
Interventions
AC682
Drug
Lead sponsor
Accutar Biotechnology Inc
Industry
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
5
States / cities
Denver, Colorado • Orlando, Florida • Sarasota, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2025 · Synced Sep 25, 2026, 7:14 AM EDT
Completed Phase 1 Interventional

A Study of ZN-c5 in Participants With Breast Cancer

NCT04176757
View directory record Official record
Conditions
Breast Cancer
Interventions
ZN-c5
Drug
Lead sponsor
Zeno Alpha Inc.
Industry
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
5
States / cities
Tucson, Arizona • New York, New York • Nashville, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2022 · Synced Sep 25, 2026, 7:14 AM EDT
Completed Phase 3 Interventional Results available

Everolimus in Combination With Exemestane in the Treatment of Postmenopausal Women With Estrogen Receptor Positive Locally Advanced or Metastatic Breast Cancer Who Are Refractory to Letrozole or Anastrozole

NCT00863655
View directory record Official record
Conditions
Breast Cancer
Interventions
Everolimus, Exemestane, Everolimus Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
724 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
63
States / cities
Chandler, Arizona • Fayetteville, Arkansas • Anaheim, California + 54 more
Source: ClinicalTrials.gov public record
Updated May 1, 2017 · Synced Sep 25, 2026, 7:14 AM EDT
Active, not recruiting Phase 2 Interventional

Clinical Trial Assessing the Safety of Neoadjuvant Palbociclib in Combination With Endocrine Therapy

NCT05069038
View directory record Official record
Conditions
Breast Cancer
Interventions
Palbociclib 125mg
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older · Female only
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2032
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 25, 2026, 7:14 AM EDT
Active, not recruiting No phase listed Observational

FDG PET/CT in Breast Cancer Bone Mets

NCT01996046
View directory record Official record
Conditions
Estrogen Receptor Positive Breast Cancer, Bone Metastases
Interventions
FDG PET/CT scan
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Female only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 1, 2025 · Synced Sep 25, 2026, 7:14 AM EDT
Recruiting Phase 2 Interventional

Correlation of Clinical Response to Pathologic Response in Patients With Early Breast Cancer

NCT05020860
View directory record Official record
Conditions
Breast Cancer, Breast Neoplasm, Breast Cancer Female, Breast Cancer Invasive, Breast Cancer Stage II, Breast Cancer Stage III, Triple Negative Breast Cancer, Hormone Receptor-positive Breast Cancer, HER2-positive Breast Cancer, Triple Negative Breast Neoplasms, Estrogen Receptor-positive Breast Cancer
Interventions
Paclitaxel, Carboplatin, Trastuzumab, Pertuzumab, Doxorubicin, Cyclophosphamide, Pembrolizumab, Pertuzumab/Trastuzumab/Hyaluronidase-zzxf
Drug
Lead sponsor
Baylor Breast Care Center
Other
Eligibility
18 Years and older
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 26, 2025 · Synced Sep 25, 2026, 7:14 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 Sep 25, 2026, 7:14 AM EDT
Completed Phase 3 Interventional Results available

Fulvestrant With or Without Lapatinib in Treating Postmenopausal Women With Stage III or Stage IV Breast Cancer That is Hormone Receptor-Positive

NCT00390455
View directory record Official record
Conditions
Estrogen Receptor Positive, HER2 Positive Breast Carcinoma, HER2/Neu Negative, Progesterone Receptor Positive, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Fulvestrant, Laboratory Biomarker Analysis, Lapatinib Ditosylate, Placebo Administration
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
295 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
368
States / cities
Little Rock, Arkansas • Arroyo Grande, California • Burbank, California + 259 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2019 · Synced Sep 25, 2026, 7:14 AM EDT
Active, not recruiting Phase 2 Interventional

REVIVE: Replens Versus Intra-Vaginal Estrogen for the Treatment of Vaginal Dryness on Aromatase Inhibitor Therapy

NCT01984138
View directory record Official record
Conditions
Estrogen Receptor Positive Breast Cancer, Breast Cancer
Interventions
ESTRING, Replens, Vagifem
Drug
Lead sponsor
Polly A. Niravath, MD
Other
Eligibility
18 Years and older · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Sep 25, 2026, 7:14 AM EDT
Completed Phase 2 Interventional Results available

Pembrolizumab and Doxorubicin Hydrochloride or Anti-Estrogen Therapy in Treating Patients With Triple-Negative or Hormone Receptor-Positive Metastatic Breast Cancer

NCT02648477
View directory record Official record
Conditions
Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Negative, Progesterone Receptor Negative, Progesterone Receptor Positive, Stage IV Breast Cancer, Triple-Negative Breast Carcinoma
Interventions
Anastrozole, Doxorubicin Hydrochloride, Exemestane, Laboratory Biomarker Analysis, Letrozole, Pembrolizumab
Drug · Other · Biological
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
6
States / cities
Corona, California • Duarte, California • Lancaster, California + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Sep 25, 2026, 7:14 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Chemotherapy on the Brain in Women With Newly Diagnosed Early-Stage Breast Cancer

NCT00755313
View directory record Official record
Conditions
Breast Cancer, Chemotherapeutic Agent Toxicity, Cognitive/Functional Effects, Fatigue, Long-term Effects Secondary to Cancer Therapy in Adults, Neurotoxicity, Psychosocial Effects of Cancer and Its Treatment
Interventions
trastuzumab, aromatase inhibition therapy, carboplatin, cyclophosphamide, docetaxel, doxorubicin hydrochloride, metabolic assessment, questionnaire administration, study of socioeconomic and demographic variables, cognitive assessment, positron emission tomography, fludeoxyglucose F 18
Biological · Drug · Other + 2 more
Lead sponsor
University of California, San Francisco
Other
Eligibility
35 Years to 80 Years · Female only
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 23, 2017 · Synced Sep 25, 2026, 7:14 AM EDT