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ClinicalTrials.gov public records Last synced Oct 25, 2026, 2:28 PM EDT

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Showing 1–24 of 291 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Aromatase Inhibitor Clear all
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 19, 2024 · Synced Oct 25, 2026, 2:28 PM EDT
Recruiting Phase 1Phase 2 Interventional

ORION-1: Study of AVZO-023 as a Single Agent and in Combination With AVZO-021, and/or Endocrine Therapy in Advanced Solid Tumors

NCT06998407
View directory record Official record
Conditions
HR+/HER2- Breast Cancer, HR+, HER2-, Advanced Breast Cancer
Interventions
AVZO-021, Fulvestrant, Letrozole, AVZO-023
Drug
Lead sponsor
Avenzo Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
380 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
16
States / cities
Los Angeles, California • New Haven, Connecticut • Orlando, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 25, 2026, 2:28 PM EDT
Terminated Not applicable Interventional Results available

Chemotherapy Before Surgery and Tissue Sample Collection in Patients With Stage IIA-IIIC Breast Cancer

NCT01897441
View directory record Official record
Conditions
Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Cyclophosphamide, Cytology Specimen Collection Procedure, Doxorubicin Hydrochloride, Laboratory Biomarker Analysis, Paclitaxel, Trastuzumab, Endocrine therapy
Drug · Other · Biological
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Dec 24, 2024 · Synced Oct 25, 2026, 2:28 PM EDT
Recruiting Phase 1Phase 2 Interventional

SRS & Abemaciclib w/wo Imlunestrant in the Management of HR+/HER2- Breast CA Brain Metastases

NCT04923542
View directory record Official record
Conditions
Brain Metastases, HR+ Metastatic Breast Cancer
Interventions
Stereotactic Radiosurgery (SRS), Abemaciclib, Endocrine therapy
Radiation · Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
2
States / cities
Tampa, Florida • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 25, 2026, 2:28 PM EDT
Completed Not applicable Interventional Results available

Zoledronate in Treating Osteopenia or Osteoporosis in Postmenopausal Women Receiving Letrozole for Stage I, Stage II, or Stage IIIA Primary Breast Cancer

NCT00436917
View directory record Official record
Conditions
Breast Cancer, Osteoporosis
Interventions
zoledronic acid, Letrozole as adjuvant therapy
Drug · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2016
U.S. locations
2
States / cities
Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Oct 25, 2026, 2:28 PM EDT
Terminated No phase listed Observational Results available

HR+/ HER2- Advanced/ Metastatic Breast Cancer Real World Treatment Patterns and Outcomes

NCT04396626
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
975 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 27, 2023 · Synced Oct 25, 2026, 2:28 PM EDT
Completed No phase listed Observational Results available

Real-World Effectiveness of Palbociclib in Combination With an Aromatase Inhibitor

NCT05361655
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Palbociclib + an aromatase inhibitor, Aromatase inhibitor
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
2,888 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 7, 2024 · Synced Oct 25, 2026, 2:28 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

A Study of GDC-0810 Single Agent or in Combination With Palbociclib and/or a Luteinizing Hormone-Releasing Hormone (LHRH) Agonist in Women With Locally Advanced or Metastatic Estrogen Receptor Positive Breast Cancer

NCT01823835
View directory record Official record
Conditions
Breast Cancer
Interventions
GDC-0810, LHRH Agonist, Palbociclib
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
8
States / cities
San Diego, California • Boston, Massachusetts • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2021 · Synced Oct 25, 2026, 2:28 PM EDT
Not yet recruiting Phase 2 Interventional

Randomized Double-Blind Phase II Trial of Baby Exemestane Versus Baby Tamoxifen in Post-Menopausal Women at High Risk for Breast Cancer

NCT07499999
View directory record Official record
Conditions
Breast Cancer, Ductal Carcinoma, Estrogen-receptor-positive Breast Cancer, Atypical Lobular Hyperplasia, BRCA2 Mutation, CHEK2 Gene Mutation, Ataxia Telangiectasia Mutated Gene Mutation
Interventions
Exemestane, Tamoxifen
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
Female only
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Oct 25, 2026, 2:28 PM EDT
Withdrawn Not applicable Interventional

FES-PET for Patients Treated on NCI Protocol 8762

NCT01714128
View directory record Official record
Conditions
Breast Cancer
Interventions
Diagnostic Imaging ( 6α-[18F]fluoro-17β-estradiol (FES))
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 25, 2021 · Synced Oct 25, 2026, 2:28 PM EDT
Completed Phase 1Phase 2 Interventional

Study of XL147 (SAR245408) or XL765 (SAR245409) in Combination With Letrozole in Subjects With Breast Cancer

NCT01082068
View directory record Official record
Conditions
Breast Cancer
Interventions
XL147 (SAR245408), XL765 (SAR245409), letrozole (Femara)
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older · Female only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
11
States / cities
Los Angeles, California • Denver, Colorado • Fort Meyers, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2016 · Synced Oct 25, 2026, 2:28 PM EDT
Completed No phase listed Observational Results available

Pilot Study to Evaluate the Effect of Aromatase Inhibitor Therapy on Pain Threshold in Breast Cancer Patients

NCT01814397
View directory record Official record
Conditions
Breast Cancer, Pain, Arthralgia
Interventions
Anastrozole, exemestane, letrozole
Drug
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
21 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Oct 25, 2026, 2:28 PM EDT
Completed Not applicable Interventional

Auricular Point Acupressure to Self-Manage Chronic Pain or Aromatase Inhibitor Musculoskeletal Symptoms in Breast Cancer Survivors: Effectiveness and Scientific Underpinnings

NCT03697200
View directory record Official record
Conditions
Aromatase Inhibitor, Musculoskeletal Symptoms, Postmenopausal Breast Cancer Survivors
Interventions
APA, Sham APA control, Education control
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older · Female only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 28, 2021 · Synced Oct 25, 2026, 2:28 PM EDT
Recruiting Phase 1 Interventional

Prototype DAA/TAA Vaccine Targeting MUC1 for Immune Interception and Prevention in Ductal Carcinoma In Situ

NCT06218303
View directory record Official record
Conditions
Ductal Carcinoma in Situ
Interventions
MUC1 Peptide Vaccine, Hiltonol®, Aromatase Inhibitor, Selective estrogen receptor modulator (SERM)
Biological · Drug
Lead sponsor
Finn, Olivera, PhD
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 25, 2026, 2:28 PM EDT
Completed Not applicable Interventional Results available

Letrozole as a Treatment of Endometrial Cancer

NCT00997373
View directory record Official record
Conditions
Endometrial Carcinoma
Interventions
Letrozole
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
40 Years and older · Female only
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
2
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 25, 2026, 2:28 PM EDT
Recruiting Phase 2 Interventional

DCIS: RECAST Trial Ductal Carcinoma In Situ: Re-Evaluating Conditions for Active Surveillance Suitability as Treatment

NCT06075953
View directory record Official record
Conditions
Ductal Carcinoma in Situ
Interventions
Tamoxifen, Exemestane, Letrozole, Anastrazole, Testosterone + Anastrazole, Elacestrant, Z-endoxifen
Drug
Lead sponsor
QuantumLeap Healthcare Collaborative
Other
Eligibility
18 Years and older · Female only
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2033
U.S. locations
29
States / cities
Berkeley, California • Duarte, California • Irvine, California + 22 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 25, 2026, 2:28 PM EDT
Completed Not applicable Interventional

Pilot Study of a an App to Improve Medication Adherence in Breast Cancer Survivors Receiving AIs

NCT04170920
View directory record Official record
Conditions
Breast Cancer, DCIS
Interventions
LifeExtend-AI
Device
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 14, 2022 · Synced Oct 25, 2026, 2:28 PM EDT
Recruiting Phase 2 Interventional

Fulvestrant+Abemaciclib With Run-In of Fulvestrant in Er-Positive, Her2-Negative Metastatic Breast Cancer

NCT05305924
View directory record Official record
Conditions
ER-Positive Breast Cancer, HER2-negative Breast Cancer
Interventions
Fulvestrant Run-In
Drug
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 25, 2026, 2:28 PM EDT
Terminated Phase 2 Interventional Results available

Neoadj ph 2 AI Plus Everolimus in Postmenopausal Women w/ ER Pos/HER2 Neg, Low Risk Score

NCT02236572
View directory record Official record
Conditions
Breast Cancer
Interventions
Everolimus
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 1, 2022 · Synced Oct 25, 2026, 2:28 PM 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 28, 2025 · Synced Oct 25, 2026, 2:28 PM EDT
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 Oct 25, 2026, 2:28 PM EDT
Completed Phase 2 Interventional Results available

NSAID Effects on Clinical and Imaging Breast Biomarkers

NCT01761877
View directory record Official record
Conditions
Inflammation, Cancer, Pain, Hypertension
Interventions
Sulindac
Drug
Lead sponsor
Stony Brook University
Other
Eligibility
Up to 75 Years · Female only
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
2
States / cities
Tucson, Arizona • Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Feb 10, 2023 · Synced Oct 25, 2026, 2:28 PM EDT
Completed Phase 2 Interventional Results available

Bay98-7196, Dose Finding / POC Study

NCT02203331
View directory record Official record
Conditions
Endometriosis
Interventions
Placebo, Levonorgestrel, Anastrozole, Lupron / Leuprolide acetate
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older · Female only
Enrollment
319 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
25
States / cities
San Diego, California • San Francisco, California • Gainesville, Florida + 22 more
Source: ClinicalTrials.gov public record
Updated Nov 7, 2023 · Synced Oct 25, 2026, 2:28 PM EDT
Completed Not applicable Interventional

Omega-3 Fatty Acids in Preventing Joint Symptoms in Patients With Stage I-III Breast Cancer Receiving Anastrozole, Exemestane, or Letrozole

NCT01478477
View directory record Official record
Conditions
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
omega-3 fatty acid supplement, Placebo, Clinical assessments, Assessment of therapy complications, Magnetic Resonance Imaging, Correlative/special studies
Dietary Supplement · Other · Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 27, 2023 · Synced Oct 25, 2026, 2:28 PM EDT