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ClinicalTrials.gov public records Last synced Sep 3, 2026, 11:37 AM EDT

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Showing 1–24 of 403 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Breast Neoplasms, Invasive Breast Cancer, Estrogen-receptor-positive Breast Cancer, HER2-negative Breast Cancer
Interventions
(Z)-endoxifen, goserelin
Drug
Lead sponsor
Atossa Therapeutics, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
14
States / cities
Phoenix, Arizona • Tucson, Arizona • Los Angeles, California + 11 more
Conditions
Breast Neoplasms, Brain Neoplasms, Neoplasms by Site, Neoplasms, Breast Diseases, Central Nervous System Neoplasms, Brain Diseases, Central Nervous System Diseases
Interventions
Elacestrant, Abemaciclib
Drug
Lead sponsor
Stemline Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
11
States / cities
Fullerton, California • Los Angeles, California • Urbana, Illinois + 8 more
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
Conditions
Breast Cancer
Interventions
Amcenestrant, Palbociclib, Alpelisib, Everolimus, Abemaciclib
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older · Female only
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
4
States / cities
Aurora, Colorado • Boston, Massachusetts • New York, New York + 1 more
Conditions
Breast Cancer, HER2-negative Breast Cancer, ER Positive Breast Cancer
Interventions
Alpelisib, Tamoxifen, Zotatifin, Fulvestrant
Drug
Lead sponsor
Jennifer Lee Caswell-Jin
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Stanford, California
Conditions
Advanced Solid Tumors, Advanced Breast Cancer
Interventions
ETX-636 dose escalation, ETX-636 dose escalation in combination with fulvestrant, ETX-636 dose expansion in combination with fulvestrant
Drug
Lead sponsor
Ensem Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
233 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
10
States / cities
Newport Beach, California • San Francisco, California • New Haven, Connecticut + 6 more
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
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
Conditions
Breast Cancer
Interventions
Single nucleotide polymorphism (SNP), high performance liquid chromatography, measurements by DXA, questionnaire administration
Genetic · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
4
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota + 1 more
Conditions
Breast Cancer, Invasive Breast Cancer
Interventions
Anastrozole, Letrozole, Exemestane, Tamoxifen
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older · Female only
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Completed Phase 2 Interventional Results available

Phase II Trial for Large ER-Negative Breast Cancers

NCT01869192
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
Conditions
Breast Cancer
Interventions
Elacestrant, Onapristone
Drug
Lead sponsor
Context Therapeutics Inc.
Industry
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Nashville, Tennessee
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
Conditions
Breast Cancer
Interventions
ARV-471, ARV-471 in combination with palbociclib (IBRANCE®)
Drug
Lead sponsor
Arvinas Estrogen Receptor, Inc.
Industry
Eligibility
18 Years and older
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
16
States / cities
Palo Alto, California • San Francisco, California • Santa Monica, California + 12 more
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
Conditions
Breast Cancer, Invasive Breast Cancer, ER-Negative PR-Negative HER2-Negative Breast Cancer
Interventions
Entinostat
Drug
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Breast Atypical Ductal Hyperplasia, Breast Atypical Lobular Hyperplasia, Breast Carcinoma, Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ, Estrogen Receptor-Positive Breast Carcinoma
Interventions
Biopsy Procedure, Biospecimen Collection, Mammography, Questionnaire Administration, Tamoxifen
Procedure · Other · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 55 Years · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
11
States / cities
Tucson, Arizona • Chicago, Illinois • Kansas City, Kansas + 6 more
Conditions
Women With ER Positive Breast Cancer Taking (AI) w Joint Discomfort and Stiffness
Interventions
Arm A Directed exercise program, Observation
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
40 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Newark, Delaware
Conditions
Breast Cancer
Interventions
letrozole, Blood Collection, biopsy/lumpectomy/mastectomy
Drug · Other · Procedure
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
5
States / cities
Atlanta, Georgia • Tulsa, Oklahoma • Pittsburgh, Pennsylvania + 1 more
Conditions
Breast Cancer
Interventions
Observation
Other
Lead sponsor
BioCorteX Inc
Industry
Eligibility
18 Years to 85 Years · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
6
States / cities
Decatur, Illinois • Las Vegas, Nevada • Belleville, New Jersey + 3 more
Conditions
Breast Cancer
Interventions
BPET/DBT imaging, 18F-FES
Device · Drug
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Breast Cancer, Advanced Breast Cancer, Metastatic Breast Cancer, ER Positive Breast Cancer, HER2 Negative Breast Carcinoma
Interventions
Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Drug
Lead sponsor
Olema Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
47
States / cities
Tucson, Arizona • Fountain Valley, California • Glendale, California + 39 more
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
Conditions
HR+ Breast Cancer, Triple Negative Breast Cancer (TNBC), CCNE1 Amplified Advanced Solid Tumors, HR+ HER2- Breast Cancer
Interventions
NKT5097 CDK2/CDK4 dual degrader, Fulvestrant, Letrozole
Drug
Lead sponsor
NiKang Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
361 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
18
States / cities
Duarte, California • La Jolla, California • Denver, Colorado + 15 more