Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 1, 2026, 10:24 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
HER-2 Positive Breast Cancer, Estrogen Receptor Positive Breast Cancer
Interventions
palbociclib, trastuzumab, pertuzumab, letrozole, Anastrozole, Exemestane, Fulvestrant
Drug
Lead sponsor
Alliance Foundation Trials, LLC.
Other
Eligibility
18 Years and older
Enrollment
518 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
35
States / cities
San Francisco, California • Washington D.C., District of Columbia • Clearwater, Florida + 30 more
Completed Phase 3 Interventional Results available

Pregnancy in Polycystic Ovary Syndrome II

NCT00719186
Conditions
Pregnancy, Polycystic Ovary Syndrome
Interventions
Clomiphene citrate, Letrozole
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
12
States / cities
Birmingham, Alabama • Stanford, California • Aurora, Colorado + 9 more
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
Conditions
Breast Cancer
Interventions
Letrozole, Placebo
Drug · Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
35 Years to 120 Years · Female only
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2013
U.S. locations
5
States / cities
Boston, Massachusetts • Philadelphia, Pennsylvania • Houston, Texas
Conditions
Breast Cancer
Interventions
Letrozole
Drug
Lead sponsor
Roxane Laboratories
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Fargo, North Dakota
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
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
bevacizumab, letrozole
Biological · Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2016
U.S. locations
2
States / cities
San Francisco, California • New York, New York
Conditions
Hormone Receptor Positive HER-2 Negative Breast Cancer, Metastatic Breast Cancer, Recurrent Breast Cancer
Interventions
Alisertib, Endocrine therapy
Drug
Lead sponsor
Puma Biotechnology, Inc.
Industry
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
35
States / cities
Birmingham, Alabama • Phoenix, Arizona • Beverly Hills, California + 28 more
Conditions
Breast Cancer
Interventions
letrozole, MRI, conventional surgery
Drug · Procedure
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Female only
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
32
States / cities
Los Angeles, California • Oakland, California • San Francisco, California + 22 more
Conditions
Breast Cancer
Interventions
Capecitabine, Exemestane, Everolimus
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
309 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
19
States / cities
Los Angeles, California • San Diego, California • Fort Myers, Florida + 15 more
Conditions
Estrogen Receptor-Positive, HER2-Negative Locally Advanced or Metastatic Breast Cancer
Interventions
Giredestrant, Giredestrant-matched Placebo, Letrozole, Letrozole-matched Placebo, Palbociclib, LHRH Agonist
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
992 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
37
States / cities
Fountain Valley, California • Long Beach, California • San Leandro, California + 32 more
Conditions
Breast Cancer, Adjuvant Treatment, Early Stage Breast Cancer
Interventions
Switch, Guideline Directed Intervention (GDI)
Drug · Other
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Lebanon, New Hampshire
Conditions
Metastatic Breast Cancer, Unresectable Breast Cancer
Interventions
Letrozole, Palbociclib, Onapristone ER
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Harrison, New York
Conditions
Breast Neoplasms, Endocrine Breast Diseases, Neoplasm Metastasis
Interventions
letrozole, lapatinib, everolimus
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older · Female only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Breast Cancer Female
Interventions
Tamoxifen, Letrozole, Anastrozole, or Exemestane
Drug
Lead sponsor
University of Virginia
Other
Eligibility
65 Years and older · Female only
Enrollment
354 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2034
U.S. locations
6
States / cities
New Haven, Connecticut • Charlottesville, Virginia • Culpeper, Virginia + 3 more
Conditions
Metastatic Invasive Breast Cancer, Resistant Breast Cancer, ER+, HER2-, Metastatic Breast Cancer
Interventions
Neratinib + endocrine therapy, Endocrine therapy may include one of the following therapies: letrozole, anastrozole, exemestane, tamoxifen or fulvestrant, CDK4/6 + Endocrine therapy
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Female only
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2035
U.S. locations
1
States / cities
La Jolla, California
Conditions
Breast Neoplasms, Neoplasms, Hormone-Dependent
Interventions
Atamestane, toremifene, letrozole
Drug
Lead sponsor
Intarcia Therapeutics
Industry
Eligibility
18 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
6
States / cities
Greenbrae, California • Saint Joseph, Michigan • Kansas City, Missouri + 3 more
Conditions
Congenital Adrenal Hyperplasia (CAH)
Interventions
Fludrocortisone, Hydrocortisone, Letrozole, Flutamide, Testolactone
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
2 Years to 18 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Breast Cancer
Interventions
LEE011, Letrozole, BYL719
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years · Female only
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
10
States / cities
San Diego, California • San Francisco, California • Tampa, Florida + 5 more
Conditions
Breast Cancer
Interventions
Sample collection, Patient-reported outcomes
Other · Behavioral
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
329 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Breast Cancer
Interventions
LOXO-783, Fulvestrant, Imlunestrant, Abemaciclib, Anastrozole, Exemestane, or Letrozole, Paclitaxel
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
17
States / cities
Scottsdale, Arizona • Los Angeles, California • San Francisco, California + 12 more
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
Conditions
Breast Cancer
Interventions
TOL2506, Tamoxifen, Letrozole tablets, Anastrozole Tablets, Exemestane Tablets
Drug
Lead sponsor
Tolmar Inc.
Industry
Eligibility
18 Years to 51 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
17
States / cities
Greenbrae, California • Fort Lauderdale, Florida • Lexington, Kentucky + 14 more