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Showing 1–24 of 214 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Aromatase Inhibitors Clear all
Completed Not applicable Interventional

Writing Interventions in Breast Cancer Patients Taking Aromatase Inhibitors

NCT04651452
View directory record Official record
Conditions
Breast Cancer
Interventions
Value Affirmation, Reflective Journaling
Behavioral
Lead sponsor
Carnegie Mellon University
Other
Eligibility
18 Years and older · Female only
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 11, 2026, 2:06 AM 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 26, 2023 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Phase 2 Interventional

Safety/Efficacy of Q-122 in Breast Cancer Patients Taking Tamoxifen or Aromatase Inhibitor

NCT03518138
View directory record Official record
Conditions
Vasomotor Symptoms (VMS)
Interventions
Q-122, Placebo
Drug
Lead sponsor
Que Oncology
Industry
Eligibility
18 Years to 70 Years · Female only
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
6
States / cities
Woodstock, Georgia • Indianapolis, Indiana • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Sep 11, 2026, 2:06 AM EDT
Terminated Phase 3 Interventional

Efficacy Evaluation of Enobosarm Monotherapy in Treatment of AR+/ER+/HER2- Metastatic Breast Cancer

NCT04869943
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Enobosarm, Exemestane
Drug
Lead sponsor
Veru Inc.
Industry
Eligibility
18 Years to 100 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
34
States / cities
Chandler, Arizona • Gilbert, Arizona • Glendale, California + 29 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2024 · Synced Sep 11, 2026, 2:06 AM EDT
Terminated Phase 2 Interventional

Omega-3-Fatty Acid on Joint Symptoms Inducted by Aromatase Inhibitors

NCT00930527
View directory record Official record
Conditions
Breast Cancer
Interventions
Omega-3 Fatty Acid
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
21 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 22, 2014 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Results available

Fulvestrant and Bevacizumab in Treating Patients With Metastatic Breast Cancer

NCT00423917
View directory record Official record
Conditions
Breast Cancer
Interventions
bevacizumab, fulvestrant
Biological · Drug
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
205
States / cities
Scottsdale, Arizona • Hollywood, Florida • Jacksonville, Florida + 127 more
Source: ClinicalTrials.gov public record
Updated May 7, 2018 · Synced Sep 11, 2026, 2:06 AM 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 29, 2017 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Not applicable Interventional Results available

Evaluation of Blood/Imaging Based Biomarkers, Aromatase Inhibitor Induced Musculoskeletal Syndrome

NCT03665077
View directory record Official record
Conditions
Aromatase Inhibitor Induced Musculoskeletal Syndrome (AIMSS), Breast Cancer
Interventions
Initial blood draw, Initial SWE ultrasound, Blood draw at three months, Blood draw at six months, SWE ultrasound at six months
Diagnostic Test
Lead sponsor
University of Arizona
Other
Eligibility
21 Years and older · Female only
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 23, 2023 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Results available

Vitamin D3 for Aromatase Inhibitor Induced Arthralgias

NCT00867217
View directory record Official record
Conditions
Breast Cancer
Interventions
High Dose Vitamin D, Placebo, Standard Dose Vitamin D3, Letrozole 2.5mg
Dietary Supplement · Drug
Lead sponsor
Qamar Khan
Other
Eligibility
18 Years and older · Female only
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
Westwood, Kansas • Wichita, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 8, 2018 · Synced Sep 11, 2026, 2:06 AM EDT
Active, not recruiting Phase 3 Interventional Results available

A Study of Nonsteroidal Aromatase Inhibitors Plus Abemaciclib (LY2835219) in Postmenopausal Women With Breast Cancer

NCT02246621
View directory record Official record
Conditions
Breast Cancer
Interventions
Abemaciclib, Anastrozole, Letrozole, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
493 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2026
U.S. locations
20
States / cities
Chandler, Arizona • Springdale, Arkansas • Bakersfield, California + 13 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Sep 11, 2026, 2:06 AM EDT
Terminated Phase 2 Interventional Results available

Vaginal Dehydroepiandrosterone (DHEA) in Postmenopausal Breast Cancer Survivors on Aromatase Inhibitors

NCT04493333
View directory record Official record
Conditions
Vaginal Atrophy, Postmenopausal Symptoms, Breast Cancer Female, Long-term Survivors
Interventions
Vaginal Dehydroepiandrosterone, Vaginal Polycarbophil Moisturizer
Drug · Combination Product
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Nov 26, 2024 · Synced Sep 11, 2026, 2:06 AM 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 10, 2019 · Synced Sep 11, 2026, 2:06 AM 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 2, 2016 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Results available

Randomized Trial of Fulvestrant With or Without Dasatinib in Men and Postmenopausal Women Who Have Hormone Receptor-positive Advanced Breast Cancer Previously Treated With an Aromatase Inhibitor

NCT00754325
View directory record Official record
Conditions
Advanced Breast Cancer
Interventions
Dasatinib, Fulvestrant
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
28
States / cities
Sedona, Arizona • Tucson, Arizona • Hudson, Florida + 22 more
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Results available

Study Assessing the Efficacy and Safety of Alpelisib Plus Fulvestrant or Letrozole, Based on Prior Endocrine Therapy, in Patients With PIK3CA Mutant, HR+, HER2- Advanced Breast Cancer Who Have Progressed on or After Prior Treatments

NCT03056755
View directory record Official record
Conditions
Breast Cancer
Interventions
Alpelisib, Fulvestrant, Letrozole, Goserelin, Leuprolide
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 99 Years
Enrollment
383 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
25
States / cities
Gilbert, Arizona • Phoenix, Arizona • Anaheim, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 11, 2026, 2:06 AM EDT
Terminated Not applicable Interventional Results available

GCC 1366: Anti-Proliferative Response to NeoAdjuvant AIs in Overweight and Obese Patients

NCT02095184
View directory record Official record
Conditions
Breast Cancer
Interventions
Anastrozole, Letrozole
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 11, 2026, 2:06 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 11, 2026, 2:06 AM EDT
Withdrawn Phase 4 Interventional

A Study of Abemaciclib (LY2835219) in Participants With HR+, HER2- Advanced Breast Cancer

NCT03988114
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Abemaciclib, Nonsteroidal Aromatase Inhibitor (NSAI)
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
70
States / cities
Daphne, Alabama • Tempe, Arizona • Fountain Valley, California + 60 more
Source: ClinicalTrials.gov public record
Updated Sep 5, 2019 · Synced Sep 11, 2026, 2:06 AM EDT
Terminated Phase 1 Interventional

RO4929097 and Letrozole in Treating Post-Menopausal Women With Hormone Receptor-Positive Stage II or Stage III Breast Cancer

NCT01208441
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer, Progesterone Receptor-positive Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer
Interventions
letrozole, gamma-secretase/Notch signalling pathway inhibitor RO4929097, therapeutic conventional surgery, breast biopsy, diagnostic laboratory biomarker analysis, pharmacological study
Drug · Procedure · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2010
U.S. locations
3
States / cities
Birmingham, Alabama • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 29, 2013 · Synced Sep 11, 2026, 2:06 AM EDT
Terminated Phase 2 Interventional Results available

Aromatase Inhibitor Therapy With or Without Fulvestrant for the Treatment of HR Positive Metastatic Breast Cancer With an ERS1 Activating Mutation, the INTERACT Study

NCT04256941
View directory record Official record
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Metastatic Breast Carcinoma, Prognostic Stage IV Breast Cancer AJCC v8
Interventions
Abemaciclib, Anastrozole, Fulvestrant, Letrozole, Palbociclib, Ribociclib
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 26, 2024 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Not applicable Interventional Results available

Vorinostat in Treating Patients With Stage IV Breast Cancer Receiving Aromatase Inhibitor Therapy

NCT01153672
View directory record Official record
Conditions
Male Breast Cancer, Recurrent Breast Cancer, Stage IV Breast Cancer
Interventions
vorinostat, laboratory biomarker analysis, biopsy, F-18 16 alpha-fluoroestradiol, positron emission tomography, anastrozole, letrozole, exemestane, gene expression analysis
Drug · Other · Procedure + 2 more
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 5, 2019 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Results available

Study of Combined Fulvestrant and Everolimus in Advanced/Metastatic Breast Cancer After Aromatase Inhibitor Failure

NCT00570921
View directory record Official record
Conditions
Breast Cancer
Interventions
Everolimus, Fulvestrant
Drug
Lead sponsor
Mara Chambers
Other
Eligibility
45 Years and older · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Sep 11, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Results available

A Study of Pertuzumab in Combination With Trastuzumab Plus an Aromatase Inhibitor in Participants With Metastatic Human Epidermal Growth Factor Receptor 2 (HER2)-Positive and Hormone Receptor-Positive Advanced Breast Cancer

NCT01491737
View directory record Official record
Conditions
Breast Cancer
Interventions
Pertuzumab, Trastuzumab, Aromatase Inhibitor, Induction Chemotherapy
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older · Female only
Enrollment
258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
21
States / cities
Birmingham, Alabama • Chandler, Arizona • Hot Springs, Arkansas + 17 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2020 · Synced Sep 11, 2026, 2:06 AM 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 6, 2022 · Synced Sep 11, 2026, 2:06 AM EDT