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ClinicalTrials.gov public records Last synced Nov 13, 2026, 5:48 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 280 matching trials from the live ClinicalTrials.gov search.
Conditions
Prostate Cancer Adenocarcinoma in Situ
Interventions
degarelix acetate, Cyclophosphamide, GVAX
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
21 Years and older · Male only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Testosterone Gel on Carbohydrate and Lipid Metabolism In Elderly Obese Men

NCT00365794
Conditions
Aging, Obesity, Insulin Resistance, Hypogonadism
Interventions
Topical testosterone gel 10 g/day
Drug
Lead sponsor
University of Southern California
Other
Eligibility
60 Years to 90 Years · Male only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Breast Cancer, Vaginal Dryness, Dyspareunia, Sexual Health Quality of Life
Interventions
Testosterone
Drug
Lead sponsor
Creighton University
Other
Eligibility
50 Years and older · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Omaha, Nebraska
Conditions
Prostate Cancer, Hypogonadism, Male
Interventions
Testosterone cypionate
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older · Male only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
2
States / cities
Miami, Florida
Conditions
Testosterone Deficiency
Interventions
Jatenzo
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Miami, Florida
Completed Phase 1 Interventional Accepts healthy volunteers

Influence of Male Hormones on Regional Fat Metabolism

NCT01160328
Conditions
Obesity
Interventions
Leuprolide, Testosterone
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Hypogonadism
Interventions
Testosterone Cypionate
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years to 75 Years · Male only
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
2
States / cities
Albuquerque, New Mexico • Houston, Texas
Conditions
Gender Incongruence, Transgenderism
Interventions
testosterone cypionate, Estradiol Valerate
Drug
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 50 Years
Enrollment
4 participants
Timeline
2020 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
HIV Associate Weight Loss
Interventions
Testosterone enanthate, Placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 60 Years · Male only
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Hypogonadism, Gender Identity Dysphoria
Interventions
Fortesta, Estradiol
Drug
Lead sponsor
Walter Reed National Military Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Seizure Disorder, Hypogonadism, Erectile Dysfunction
Interventions
Anastrozole 1mg, Placebo Oral Tablet
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Cycled Testosterone Replacement Study

NCT00957528
Conditions
Hypogonadism
Interventions
Testosterone, Placebo
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
60 Years to 85 Years · Male only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Galveston, Texas
Conditions
Prostate Cancer
Interventions
Sargramostim (GM-CSF, Leukine), Flutamide (Eulexin), PROSTVAC-F/ TRICOM, PROSTVAC-V/TRICOM
Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 110 Years · Male only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
3
States / cities
Bethesda, Maryland • New Brunswick, New Jersey • Philadelphia, Pennsylvania
Completed Not applicable Interventional Results available

Androgen Effects in HIV-infected Women

NCT00095212
Conditions
HIV Infection
Interventions
1 Transdermal Testosterone (Patch), 2 Placebo Patch
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Phase 1 Interventional Results available

Study of Testosterone and rHGH in FSHD

NCT03123913
Conditions
Facioscapulohumeral Muscular Dystrophy
Interventions
Testosterone Enanthate, Somatropin
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Rochester, New York
Completed Phase 3 Interventional Accepts healthy volunteers Results available

The Testosterone Trials in Older Men

NCT00799617
Conditions
Andropause
Interventions
AndroGel® (testosterone gel), Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
65 Years and older · Male only
Enrollment
790 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2018
U.S. locations
12
States / cities
Birmingham, Alabama • La Jolla, California • Torrance, California + 9 more
Conditions
Prostate Cancer
Interventions
mutation analysis
Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
Male only
Enrollment
184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2006
U.S. locations
49
States / cities
Birmingham, Alabama • La Jolla, California • San Francisco, California + 30 more
Conditions
Prostate Cancer
Interventions
flotufolastat F 18, Relugolix 120 MG, Serum PSA and Testosterone
Diagnostic Test · Drug
Lead sponsor
Urology Clinics of North Texas
Network
Eligibility
Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Prostate Cancer, Castration-Resistant Prostate Cancer
Interventions
Transdermal Testosterone, Standard of Care, Enzalutamide
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 100 Years · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Conditions
Gender Identity, Gender Dysphoria in Adolescents and Adults, Headache, Transgender
Interventions
Testosterone
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 20 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Aurora, Colorado
Conditions
Hypogonadism
Interventions
Androderm®
Drug
Lead sponsor
Allergan
Industry
Eligibility
18 Years to 80 Years · Male only
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
41
States / cities
Birmingham, Alabama • Mobile, Alabama • Tucson, Arizona + 37 more
Completed No phase listed Observational Accepts healthy volunteers

Effect of Testosterone Treatment on Drug Metabolism and Transport

NCT05116293
Conditions
Transgender Persons
Interventions
Midazolam oral solution, Digoxin Oral Tablet, Acetaminophen Oral Tablet
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Prostate Cancer, Prostate Adenocarcinoma
Interventions
Relacorilant, Enzalutamide, Placebo (Sugar Pill), Androgen Deprivation Therapy, Radical Prostatectomy
Drug · Other · Procedure
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older · Male only
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
4
States / cities
Chicago, Illinois • Evanston, Illinois • Portland, Oregon + 1 more
Conditions
Castration Resistant Metastatic Prostate Cancer
Interventions
Testosterone cypionate, Enzalutamide, Testosterone Enanthate
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years to 80 Years · Male only
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
17
States / cities
Birmingham, Alabama • Duarte, California • Aurora, Colorado + 13 more