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ClinicalTrials.gov public records Last synced Oct 22, 2026, 7:24 PM EDT

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Showing 1–24 of 126 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo for testosterone Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Androgen Administration on Inflammation in Normal Women

NCT01753037
View directory record Official record
Conditions
Hyperandrogenism
Interventions
Dehydroepiandrosterone (DHEA), Placebo
Dietary Supplement · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 18, 2013 · Synced Oct 22, 2026, 7:24 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Acute Vitamin D Supplementation on Testosterone in Females

NCT06610968
View directory record Official record
Conditions
Female Hormone Profile
Interventions
Vitamin D (Cholecalciferol ), Placebo Group
Dietary Supplement
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 25, 2026 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 4 Interventional Results available

A Study to Evaluate the Effect of Testosterone Replacement Therapy (TRT) on the Incidence of Major Adverse Cardiovascular Events (MACE) and Efficacy Measures in Hypogonadal Men

NCT03518034
View directory record Official record
Conditions
Hypogonadism, Cardiovascular Diseases
Interventions
AndroGel®, Placebo
Drug
Lead sponsor
AbbVie
Industry
Eligibility
45 Years to 80 Years · Male only
Enrollment
5,246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
379
States / cities
Alabaster, Alabama • Birmingham, Alabama • Decatur, Alabama + 262 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2024 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 1 Interventional

Feasibility Study of Post-hospitalization Interventions to Improve Physical Function in Older Adults

NCT02203656
View directory record Official record
Conditions
Aging
Interventions
Placebo, Nutritional Supplement, In-home exercise, Testosterone
Drug · Dietary Supplement · Behavioral
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
65 Years and older
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
2
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 4, 2019 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

PROS-2 Dose Response Effects of Exogenous Testosterone on the Prostate

NCT01327495
View directory record Official record
Conditions
Healthy
Interventions
placebo acyline, placebo gel, Testosterone 1% gel 1.25 g, Testosterone 1% gel 2.5 g, Testosterone 1% gel 5.0 g, testosterone 1% gel 10 g, testosterone 1% gel 15 g, Acyline
Other · Drug
Lead sponsor
University of Washington
Other
Eligibility
25 Years to 55 Years · Male only
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 5, 2017 · Synced Oct 22, 2026, 7:24 PM EDT
Active, not recruiting Phase 3 Interventional

A Study of Apalutamide in Participants With High-Risk, Localized or Locally Advanced Prostate Cancer Who Are Candidates for Radical Prostatectomy

NCT03767244
View directory record Official record
Conditions
Prostatic Neoplasms
Interventions
Apalutamide, Androgen Deprivation Therapy (ADT), Placebo
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years and older · Male only
Enrollment
2,517 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
44
States / cities
La Jolla, California • Los Angeles, California • Orange, California + 36 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

5-Alpha Reductase and Anabolic Effects of Testosterone

NCT00475501
View directory record Official record
Conditions
Male Hypogonadism, Muscle Atrophy, Sarcopenia, Benign Prostate Hypertrophy
Interventions
Testosterone Enanthate, Finasteride, Placebo
Drug · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
60 Years and older · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 11, 2018 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 4 Interventional Results available

Effect of Testosterone in Men With Erectile Dysfunction

NCT00512707
View directory record Official record
Conditions
Erectile Dysfunction, Testosterone Deficiency, Diabetes
Interventions
Sildenafil citrate (open label), Testosterone gel, Placebo gel
Drug · Other
Lead sponsor
Boston University
Other
Eligibility
40 Years to 70 Years · Male only
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2017 · Synced Oct 22, 2026, 7:24 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Hormonal Mechanisms of Sleep Restriction - Axis Study

NCT03142893
View directory record Official record
Conditions
Sleep Restriction
Interventions
Ketoconazole Pill, Ganirelix, Dexamethasone, Dexamethasone Injection, Cosyntropin Injectable Product, Recombinant Human Luteinizing Hormone, Hydrocortisone Injection, Gonadorelin, Corticorelin, Placebo oral capsule, Saline Solution, Saline Solution for Injection
Drug
Lead sponsor
Peter y. Liu
Other
Eligibility
22 Years to 45 Years · Male only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2026
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced Oct 22, 2026, 7:24 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

The Effects of Long Term Cyclic Testosterone Administration on Muscle Function and Bone in Older Men

NCT01417364
View directory record Official record
Conditions
Sarcopenia
Interventions
Testosterone enanthate, Placebo
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
60 Years to 75 Years · Male only
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 2, 2015 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 3 Interventional Results available

A Study in Men With Low Testosterone to Measure the Effects of Testosterone Solution on Testosterone Levels, Sex Drive and Energy

NCT01816295
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone Solution, Placebo Solution
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Male only
Enrollment
715 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
45
States / cities
Homewood, Alabama • Chandler, Arizona • Glendale, Arizona + 42 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2015 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Influence of Testosterone Administration on Drug-Induced QT Interval Prolongation and Torsades de Pointes

NCT02513940
View directory record Official record
Conditions
Long QT Syndrome
Interventions
Testosterone, Progesterone, Placebo, Ibutilide
Drug
Lead sponsor
Indiana University
Other
Eligibility
65 Years and older · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 28, 2019 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 3 Interventional

Study of Transdermal Testosterone Patches in Naturally Menopausal Women With Low Libido

NCT00338312
View directory record Official record
Conditions
Hypoactive Sexual Desire Disorder
Interventions
Testosterone Transdermal System, Placebo patch
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
40 Years to 70 Years · Female only
Enrollment
610 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 17, 2013 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of BGS649 in Male Obese Subjects With Hypogonadotropic Hypogonadism

NCT02730169
View directory record Official record
Conditions
Hypogonadotropic Hypogonadism
Interventions
BGS649, Placebo
Drug
Lead sponsor
Mereo BioPharma
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
271 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
48
States / cities
Birmingham, Alabama • Mobile, Alabama • Chandler, Arizona + 45 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2022 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 3 Interventional Results available

Testosterone Replacement for Fatigue in Male Hypogonadic Advanced Cancer Patients

NCT00965341
View directory record Official record
Conditions
Advanced Cancer
Interventions
Testosterone, Placebo
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 13, 2016 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 2 Interventional Results available

Treatment of Sexual Dysfunction in Hypogonadal Men With Epilepsy With Testosterone and Either Anastrozole or Placebo

NCT00179517
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 17, 2019 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Hypoglycemia Associated Autonomic Failure in Type 1 Diabetes Mellitus

NCT00607646
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Dehydroepiandrosterone, Placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 45 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2018
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 12, 2019 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 3 Interventional Results available

Intravaginal Prasterone (DHEA) Against Vulvovaginal Atrophy Associated With Menopause

NCT02013544
View directory record Official record
Conditions
Vaginal Atrophy
Interventions
Placebo, Prasterone (DHEA)
Drug
Lead sponsor
EndoCeutics Inc.
Industry
Eligibility
40 Years to 80 Years · Female only
Enrollment
558 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
24
States / cities
Montgomery, Alabama • Tucson, Arizona • Sacramento, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2017 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Brain Blood Flow Responses to Stress: Sex Differences

NCT06253702
View directory record Official record
Conditions
Cerebrovascular Disorders
Interventions
Indomethacin, Placebo, Orilissa, Testosterone gel, Anastrozole, Estradiol
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 40 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Dihydrotestosterone (DHT) on Prostate Tissue [Short Title: DHT-3]

NCT00490022
View directory record Official record
Conditions
Healthy
Interventions
Dihydrotestosterone (DHT) gel (0.7%), Placebo gel
Drug
Lead sponsor
University of Washington
Other
Eligibility
35 Years to 55 Years · Male only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 27, 2011 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

T-IR- Study to Understand the Effects of Testosterone and Estrogen on the Body's Response to the Hormone Insulin

NCT01686828
View directory record Official record
Conditions
Insulin Resistance, Type 2 Diabetes Mellitus, Obesity, Androgen Deficiency, Metabolic Disease
Interventions
Acyline, Testosterone 1.62% gel, Letrozole, Placebo gel (for Testosterone 1.62% gel), Placebo pill (for Letrozole)
Drug
Lead sponsor
University of Washington
Other
Eligibility
25 Years to 55 Years · Male only
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 3 Interventional Results available

Exercise and Testosterone Therapy in Elderly Men With Physical Frailty

NCT00345969
View directory record Official record
Conditions
Physical Frailty, Hip Fracture, Elective Hip Replacement, Hypogonadism
Interventions
Transdermal Testosterone gel (1%), Supervised exercise training
Drug · Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
65 Years and older · Male only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Oct 22, 2026, 7:24 PM EDT
Completed Phase 1 Interventional

Study of the Safety, Tolerability and Pharmacokinetics of Testosterone Undecanoate in Hypogonadal Males.

NCT01346319
View directory record Official record
Conditions
Hypogonadal Males
Interventions
ABT-SLV361, placebo
Drug
Lead sponsor
Abbott
Industry
Eligibility
18 Years to 80 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Fort Myers, Florida
Source: ClinicalTrials.gov public record
Updated Nov 3, 2011 · Synced Oct 22, 2026, 7:24 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Natesto Testosterone Nasal Gel for Hypogonadal Men

NCT05484167
View directory record Official record
Conditions
Erectile Dysfunction, Sexual Dysfunction
Interventions
Natesto Nasal Product, Placebo
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 64 Years · Male only
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 21, 2022 · Synced Oct 22, 2026, 7:24 PM EDT