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ClinicalTrials.gov public records Last synced Sep 25, 2026, 4:36 PM EDT

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Showing 1–12 of 12 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: Letrozole 2.5Mg Tab Clear all
Recruiting Phase 2 Interventional

Combined Immunotherapies in Metastatic ER+ Breast Cancer

NCT04563507
View directory record Official record
Conditions
Breast Cancer
Interventions
Stereotactic Body Radiation Therapy (SBRT) (50GY in 5 fractions), Letrozole 2.5Mg Tab, Palbociclib 125mg
Radiation · Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 90 Years · Female only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
3
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Sep 25, 2026, 4:36 PM EDT
Recruiting Early Phase 1 Interventional

Study of Letrozole in Recurrent Gliomas

NCT03122197
View directory record Official record
Conditions
Brain Tumor
Interventions
Letrozole Oral Tablet, Temozolomide
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 25, 2026, 4:36 PM EDT
Recruiting Phase 2 Interventional

Impact of Omitting Chemo Based on Patient's Selection for ER-Positive, HER2-Negative Breast Cancer With Ribociclib and Endocrine Therapy

NCT06953882
View directory record Official record
Conditions
HER2 Negative Breast Cancer
Interventions
Ribociclib 400mg, Letrozole 2.5mg, Anastrazole 1mg, Goserelin 3.6 MG, Adjuvant chemotherapy
Drug · Radiation
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Sep 25, 2026, 4:36 PM EDT
Active, not recruiting Phase 4 Interventional Results available

Randomized Controlled Trial of Combined Letrozole and Clomid (CLC II) Versus Letrozole Alone for Women With Anovulation

NCT05206448
View directory record Official record
Conditions
Polycystic Ovary Syndrome, PCOS, Infertility
Interventions
Letrozole, Clomiphene Citrate
Drug
Lead sponsor
Rachel Mejia
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
4
States / cities
Davenport, Iowa • Iowa City, Iowa • West Des Moines, Iowa + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2025 · Synced Sep 25, 2026, 4:36 PM EDT
Completed Phase 2 Interventional Results available

A Phase II, Single-Arm Study of RAD001 (Everolimus), Letrozole, and Metformin in Patients With Advanced or Recurrent Endometrial Carcinoma

NCT01797523
View directory record Official record
Conditions
Endometrial Cancer
Interventions
Metformin, Letrozole, Everolimus
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
6
States / cities
Pensacola, Florida • Voorhees Township, New Jersey • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 25, 2026, 4:36 PM EDT
Terminated Phase 2 Interventional Results available

A Pharmacodynamics Pre-surgical Study of LEE011 in Early Breast Cancer Patients (MONALEESA-1)

NCT01919229
View directory record Official record
Conditions
Early Breast Cancer
Interventions
LEE011 (ribociclib), letrozole
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
4
States / cities
Fayetteville, Arkansas • Los Angeles, California • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 31, 2015 · Synced Sep 25, 2026, 4:36 PM EDT
Completed Phase 2 Interventional Results available

Open-label, Phase II, Study of Everolimus Plus Letrozole in Postmenopausal Women With ER+, HER2- Metastatic or Locally Advanced Breast Cancer

NCT01698918
View directory record Official record
Conditions
Hormone Receptor Positive Breast Cancer
Interventions
Everolimus, Letrozole, Exemestane, Alcohol-free dexamethasone mouth rinse (Stomatitis sub-study), Standard of care to treat stomatitis (Stomatitis sub-study)
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
15
States / cities
Birmingham, Alabama • Gilbert, Arizona • Loma Linda, California + 12 more
Source: ClinicalTrials.gov public record
Updated May 2, 2023 · Synced Sep 25, 2026, 4:36 PM EDT
Recruiting Not applicable Interventional

A Study of Changes in Ki67 Expression in People With Breast Cancer Receiving Endocrine Therapy Before Surgery

NCT06127979
View directory record Official record
Conditions
Breast Cancer
Interventions
core needle biopsy, blood draw
Procedure · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 25, 2026, 4:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Food Study of Letrozole Tablets 2.5 mg and Femara® Tablets 2.5 mg

NCT00648154
View directory record Official record
Conditions
Healthy
Interventions
Letrozole Tablets 2.5 mg, Femara® Tablets 2.5 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
40 Years and older · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 30, 2009 · Synced Sep 25, 2026, 4:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fasting Study of Letrozole Tablets 2.5 mg and Femara® Tablets 2.5 mg

NCT00648063
View directory record Official record
Conditions
Healthy
Interventions
Letrozole Tablets 2.5 mg, Femara® Tablets 2.5 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
40 Years and older · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Nov 30, 2009 · Synced Sep 25, 2026, 4:36 PM EDT
Not listed Phase 1Phase 2 Interventional

Study of Narazaciclib (ON 123300) Plus Letrozole in Endometrial Cancer and Other Gynecologic Malignancies

NCT05705505
View directory record Official record
Conditions
Endometrioid Endometrial Cancer
Interventions
Narazaciclib, Letrozole 2.5mg
Drug
Lead sponsor
Traws Pharma, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
8
States / cities
Tucson, Arizona • Minneapolis, Minnesota • Mineola, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2023 · Synced Sep 25, 2026, 4:36 PM EDT
Active, not recruiting Phase 2 Interventional

Phase II Study of Neoadjuvant ArOMatase Inhibitor Therapy for ER+ Breast Cancer (NAOMI)

NCT04568616
View directory record Official record
Conditions
Breast Cancer, ER Positive Breast Cancer
Interventions
Letrozole 2.5mg
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
2
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 25, 2026, 4:36 PM EDT