Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 5, 2026, 8:39 AM EDT

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Showing 1–24 of 336 matching trials from the live ClinicalTrials.gov search.
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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
Conditions
Metastatic Breast Cancer
Interventions
PTC299
Drug
Lead sponsor
PTC Therapeutics
Industry
Eligibility
18 Years and older · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
3
States / cities
Indianapolis, Indiana • New York, New York
Conditions
Infertility
Interventions
Intrauterine Insemination, Clomiphene, Letrozole
Procedure · Drug
Lead sponsor
Midwest Fertility Specialists
Industry
Eligibility
21 Years to 39 Years · Female only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Fort Wayne, Indiana • Indianapolis, Indiana
Conditions
Breast Cancer
Interventions
Anastrozole, Exemestane/Letrozole
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
65 Years and older
Enrollment
16,989 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Breast Cancer, HER2-negative Breast Cancer, HER2 Negative Breast Carcinoma, ER+ Breast Cancer, Lobular Breast Carcinoma
Interventions
Neoadjuvant endocrine therapy
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
50 Years and older · Female only
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Conditions
Breast Cancer, Infertility
Interventions
Letrozole
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
19 Years to 45 Years · Female only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2022
U.S. locations
1
States / cities
New York, New York
Conditions
Breast Neoplasms
Interventions
PF-06804103, PF-06804103 + Palbociclib +Letrozole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
26
States / cities
Tucson, Arizona • Los Angeles, California • Santa Monica, California + 14 more
Conditions
Breast Neoplasms
Interventions
PD-0332991, Letrozole, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
666 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
136
States / cities
Bellflower, California • Beverly Hills, California • Fullerton, California + 83 more
Conditions
Uterine Leiomyosarcoma
Interventions
Letrozole
Drug
Lead sponsor
GOG Foundation
Network
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
34
States / cities
Aurora, Colorado • Highlands Ranch, Colorado • Fort Lauderdale, Florida + 27 more
Conditions
Breast Neoplasms
Interventions
LY2835219, Letrozole, Anastrozole, Tamoxifen, Exemestane, Everolimus, Trastuzumab, LY3023414, Fulvestrant, Pertuzumab, Loperamide, Endocrine therapy
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2026
U.S. locations
13
States / cities
Rogers, Arkansas • La Jolla, California • Boston, Massachusetts + 7 more
Conditions
Breast Cancer
Interventions
alpelisib, buparlisib, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
23
States / cities
Birmingham, Alabama • Fayetteville, Arkansas • Los Angeles, California + 16 more
Conditions
Ovarian Cancer
Interventions
Ipatasertib, Cobimetinib, Trastuzumab Emtansine, Atezolizumab, Bevacizumab, Paclitaxel, Giredestrant, Abemaciclib, Inavolisib, Palbociclib, Letrozole, Olaparib, Luteinizing Hormone-Releasing Hormone (LHRH) Agonists, Cyclophosphamide
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older · Female only
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
8
States / cities
San Francisco, California • St Louis, Missouri • Charlotte, North Carolina + 5 more
Conditions
Uterine Cancer
Interventions
Letrozole, Everolimus
Drug
Lead sponsor
Greater Baltimore Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Breast Neoplasms, Breast Cancer, Breast Tumors, Angiosarcoma, TNBC - Triple-Negative Breast Cancer, HER2-positive Breast Cancer, HER2-negative Breast Cancer, Hormone Receptor Positive Tumor, Hormone Receptor Negative Tumor, Early-stage Breast Cancer, Locally Advanced Breast Cancer
Interventions
Standard Therapy, AMG 386 with or without Trastuzumab, AMG 479 (Ganitumab) plus Metformin, MK-2206 with or without Trastuzumab, AMG 386 and Trastuzumab, T-DM1 and Pertuzumab, Pertuzumab and Trastuzumab, Ganetespib, ABT-888, Neratinib, PLX3397, Pembrolizumab - 4 cycle, Talazoparib plus Irinotecan, Patritumab and Trastuzumab, Pembrolizumab - 8 cycle, SGN-LIV1A, Durvalumab plus Olaparib, SD-101 + Pembrolizumab, Tucatinib plus trastuzumab and pertuzumab, Cemiplimab, Cemiplimab plus REGN3767, Trilaciclib with or without trastuzumab + pertuzumab, SYD985 ([vic-]trastuzumab duocarmazine), Oral Paclitaxel + Encequidar + Dostarlimab (TSR-042) + Carboplatin with or without trastuzumab, Oral Paclitaxel + Encequidar + Dostarlimab (TSR-042) with or without trastuzumab, Amcenestrant, Amcenestrant + Abemaciclib, Amcenestrant + Letrozole, ARX788, ARX788 + Cemiplimab, VV1 + Cemiplimab, Datopotamab deruxtecan, Datopotamab deruxtecan + Durvalumab, Zanidatamab, Lasofoxifene, Z-endoxifen, ARV-471, ARV-471 + Letrozole, ARV-471 + Abemaciclib, Endoxifen + Abemaciclib, Rilvegostomig + TDXd, Dan222 + Niraparib, Sarilumab + Cemiplimab + Paclitaxel, GSK 5733584, GSK 5733584 + Dostarlimab, Ivonescimab (20mg/kg Q3W)
Drug
Lead sponsor
QuantumLeap Healthcare Collaborative
Other
Eligibility
18 Years and older
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2031
U.S. locations
42
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Tucson, Arizona + 36 more
Conditions
Metastatic Breast Cancer, Locally Advanced Breast Cancer, Hormone Receptor Positive Tumor
Interventions
Abemaciclib, Fulvestrant, Aromatase Inhibitors
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Durham, North Carolina
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
Conditions
Infertility, Breast Cancer
Interventions
RPFNA
Procedure
Lead sponsor
University of Kansas
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Kansas City, Kansas
Conditions
Ovarian Cancer, Fallopian Tube Cancer, Peritoneal Cancer
Interventions
Femara, Placebo
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Houston, Texas
Conditions
Breast Neoplasm
Interventions
RAD001, Letrozole 2.5mg, Letrozole 2.5mg
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
267 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
10
States / cities
Springdale, Arkansas • Long Beach, California • San Francisco, California + 7 more
Conditions
Breast Cancer
Interventions
Avelumab, Endocrine therapy, Palbociclib
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
4
States / cities
Birmingham, Alabama • Washington D.C., District of Columbia • Baltimore, Maryland + 1 more
Conditions
Metastatic Breast Cancer
Interventions
Ribociclib + Letrozole OR Fulvestrant, Palbociclib + Letrozole OR Fulvestrant, Paclitaxel +/- Tislelizumab
Drug
Lead sponsor
SOLTI Breast Cancer Research Group
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
26
States / cities
Clearwater, Florida • Coral Gables, Florida • Hollywood, Florida + 22 more
Conditions
Breast Cancer
Interventions
Palbociclib 125mg
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older · Female only
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2032
U.S. locations
1
States / cities
Omaha, Nebraska
Conditions
Breast Cancer
Interventions
letrozole
Drug
Lead sponsor
Carol Fabian, MD
Other
Eligibility
18 Years and older · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Kansas City, Kansas
Conditions
Locoregional Recurrence, Hormone Receptor-positive Breast Cancer, HER2-negative Breast Cancer
Interventions
Ribociclib, Fulvestrant, Anastrozole, Letrozole, Exemestane
Drug
Lead sponsor
Oana Danciu
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
21
States / cities
Birmingham, Alabama • Phoenix, Arizona • Washington D.C., District of Columbia + 18 more