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ClinicalTrials.gov public records Last synced Oct 21, 2026, 9:57 AM EDT

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Showing 1–24 of 199 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo Testosterone Clear all
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 21, 2026, 9:57 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Lybrido for Female Sexual Dysfunction

NCT01432665
View directory record Official record
Conditions
Hypoactive Sexual Desire Disorder
Interventions
Placebo, Sildenafil, Testosterone
Drug
Lead sponsor
Emotional Brain NY Inc.
Industry
Eligibility
21 Years to 70 Years · Female only
Enrollment
196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
14
States / cities
San Diego, California • Washington D.C., District of Columbia • Brooksville, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2013 · Synced Oct 21, 2026, 9:57 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Effect of Androgel on Atherogenesis in Type 2 Diabetic Males With Hypogonadotrophic Hypogonadism

NCT00467987
View directory record Official record
Conditions
Type 2 Diabetic Male With Hypogonadotrophic Hypogonadism
Interventions
androgel, placebo
Drug
Lead sponsor
University at Buffalo
Other
Eligibility
31 Years to 60 Years · Male only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2018
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 6, 2024 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Adrenal and Gonadal Hormone Replacement in Anorexia Nervosa

NCT00310791
View directory record Official record
Conditions
Anorexia Nervosa
Interventions
Hormone replacement therapy (estrogen/progestin), Placebo (Sugar Pill), Dehydroepiandrosterone (DHEA)
Drug · Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
15 Years to 30 Years · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 11, 2018 · Synced Oct 21, 2026, 9:57 AM EDT
Terminated Phase 3 Interventional

Zoledronate Plus Standard Therapy Compared With Placebo Plus Standard Therapy to Prevent Bone Metastases in Patients With Recurrent Prostate Cancer That Has No Symptoms

NCT00005073
View directory record Official record
Conditions
Prostate Cancer
Interventions
zoledronic acid
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Male only
Enrollment
544 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2003
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 1, 2013 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Supplement Study: Strength, Testosterone, Sexual Function, Quality of Life

NCT03457740
View directory record Official record
Conditions
Muscular Weakness, Sexual Behavior, Quality of Life
Interventions
Formula 1, Formula 2, Placebo
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
40 Years to 70 Years · Male only
Enrollment
118 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated May 4, 2018 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Phase 2 Interventional Results available

A Study of Ejaculatory Dysfunction in Men With Low Testosterone Levels

NCT01419236
View directory record Official record
Conditions
Ejaculatory Dysfunction, Hypogonadism
Interventions
Testosterone Solution 2%, Placebo Solution
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
26 Years and older · Male only
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
6
States / cities
Los Angeles, California • San Diego, California • New Orleans, Louisiana + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2014 · Synced Oct 21, 2026, 9:57 AM EDT
Not listed Phase 3 Interventional

To Assess Prevention of Bone Loss in Women With Lupus Receiving Treatment With Glucocorticoids

NCT00053560
View directory record Official record
Conditions
Lupus
Interventions
Prasterone (GL701)
Drug
Lead sponsor
Genelabs Technologies
Industry
Eligibility
18 Years and older · Female only
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
25
States / cities
Tucson, Arizona • Los Angeles, California • North Hollywood, California + 22 more
Source: ClinicalTrials.gov public record
Updated Jan 7, 2008 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Study to Determine the Effects of Testosterone Replacement Therapy in Aging Men With Androgen Deficiency

NCT00161304
View directory record Official record
Conditions
Men With Low Testosterone Levels
Interventions
Testosterone Enanthate, Placebo
Drug · Other
Lead sponsor
Leonard S. Marks, M.D.
Other
Eligibility
50 Years and older · Male only
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
1
States / cities
Culver City, California
Source: ClinicalTrials.gov public record
Updated Apr 28, 2021 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Lybridos in Pre- and Postmenopausal Women With Hypoactive Sexual Desire Disorder Due to Maladaptive Activation of Sexual Inhibitory Systems

NCT01743235
View directory record Official record
Conditions
Hypoactive Sexual Desire Disorder
Interventions
Placebo, Testosterone, Buspirone hydrochloride
Drug
Lead sponsor
Emotional Brain NY Inc.
Industry
Eligibility
21 Years to 70 Years · Female only
Enrollment
207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
12
States / cities
San Diego, California • Bradenton, Florida • North Miami, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2014 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Phase 3 Interventional

A Randomized, Double Blind, Placebo-Controlled, Multi-Center Phase III Study in Men With Acquired Hypogonadotropic Hypogonadism to Compare Changes in Testosterone and Sperm Concentration Following Treatment With 12.5 mg or 25 mg Androxal or AndroGel 1.62%

NCT01993225
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal 12.5 mg/25 mg, Placebo Capsules, AndroGel 1.62%, Placebo Gel
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
9
States / cities
Birmingham, Alabama • Mobile, Alabama • Evanston, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2014 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Phase 2 Interventional

Efficacy and Safety of Androgel in the Treatment of Hypogonadal and Low Testosterone Men With Type 2 Diabetes

NCT00141492
View directory record Official record
Conditions
Type 2 Diabetes, Hypogonadism
Interventions
Androgel (testosterone gel)
Drug
Lead sponsor
Solvay Pharmaceuticals
Industry
Eligibility
30 Years to 80 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
70
States / cities
Birmingham, Alabama • Calera, Alabama • Mobile, Alabama + 54 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2015 · Synced Oct 21, 2026, 9:57 AM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers Results available

Cycled Testosterone Therapy to Improve Physical Function in Frail Nursing Home Residents

NCT02679274
View directory record Official record
Conditions
Aging
Interventions
Placebo, Testosterone
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
60 Years and older
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
2
States / cities
Galveston, Texas • Texas City, Texas
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Phase 4 Interventional

Testosterone for HIV-Positive Men With Reduced Serum Testosterone Levels and Abdominal Fat

NCT00009555
View directory record Official record
Conditions
HIV Infections
Interventions
Testosterone
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years · Male only
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2006
U.S. locations
26
States / cities
Los Angeles, California • Palo Alto, California • San Diego, California + 16 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Phase 4 Interventional Results available

A Multinomial Process Model of Moral Judgment

NCT02799277
View directory record Official record
Conditions
Testosterone, Placebos
Interventions
Testosterone, Placebo
Drug
Lead sponsor
Robert Josephs
Other
Eligibility
18 Years and older
Enrollment
206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 21, 2026, 9:57 AM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers

Study of Oral Dehydroepiandrosterone(DHEA) to Treat Previously Unexplained Infertility

NCT00650754
View directory record Official record
Conditions
Primary Ovarian Insufficiency, Unexplained Infertility
Interventions
Dehydroepiandrosterone, Placebo
Dietary Supplement · Other
Lead sponsor
Center for Human Reproduction
Other
Eligibility
21 Years to 37 Years · Female only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 30, 2015 · Synced Oct 21, 2026, 9:57 AM 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 21, 2026, 9:57 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Soy on Cognition and Hot Flashes in Men With Prostate Cancer Undergoing Testosterone Suppression Therapy

NCT00245518
View directory record Official record
Conditions
Hot Flashes
Interventions
Isoflavone, Placebos
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older · Male only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 13, 2017 · Synced Oct 21, 2026, 9:57 AM EDT
Terminated Phase 2 Interventional Results available

Effects of TAK-448 in Middle-aged and Older Men With Low Testosterone

NCT02381288
View directory record Official record
Conditions
Low Testosterone
Interventions
TAK-448, TAK-448 Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
60 Years and older · Male only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 17, 2017 · Synced Oct 21, 2026, 9:57 AM EDT
Terminated Phase 1 Interventional

Effect of Varying Testosterone Levels on Insulin Sensitivity in Men With Idiopathic Hypogonadotropic Hypogonadism (IHH)

NCT03118479
View directory record Official record
Conditions
Hypogonadotropic Hypogonadism, Kallmann Syndrome
Interventions
Anastrozole Pill, Testosterone, Placebo Oral Tablet
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Male only
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Oct 21, 2026, 9:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Efficacy of Fenugreek Supplementation on Men's Health

NCT03528538
View directory record Official record
Conditions
Aging, Testosterone Deficiency
Interventions
AlphaFen fenugreek 400 mg, AlphaFen fenugreek 500 mg, Placebo
Dietary Supplement · Other
Lead sponsor
Jacksonville University
Other
Eligibility
21 Years to 45 Years · Male only
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 18, 2018 · Synced Oct 21, 2026, 9:57 AM EDT
Active, not recruiting Phase 3 Interventional

A Clinical Study Evaluating The Benefit of Adding Rucaparib to Enzalutamide for Men With Metastatic Prostate Cancer That Has Become Resistant To Testosterone-Deprivation Therapy

NCT04455750
View directory record Official record
Conditions
Castration-Resistant Prostate Carcinoma, Metastatic Prostate Adenocarcinoma, Stage IV Prostate Cancer AJCC v8, Stage IVA Prostate Cancer AJCC v8, Stage IVB Prostate Cancer AJCC v8
Interventions
Enzalutamide, Rucaparib camsylate, Placebo, Leuprolide Acetate, Goserelin Acetate, Degarelix, Quality-of-Life Assessment, Questionnaire Administration
Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Male only
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
414
States / cities
Anchorage, Alaska • Phoenix, Arizona • Hot Springs, Arkansas + 298 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Oct 21, 2026, 9:57 AM 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 21, 2026, 9:57 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Physiological and Psychological Effects of Testosterone During Severe Energy Deficit and Recovery

NCT02734238
View directory record Official record
Conditions
Caloric Restriction, Exercise
Interventions
Sesame Oil, testosterone enanthate
Drug
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 39 Years · Male only
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jan 16, 2019 · Synced Oct 21, 2026, 9:57 AM EDT