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ClinicalTrials.gov public records Last synced Oct 27, 2026, 5:50 PM EDT

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Showing 1–24 of 215 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 3 Interventional Results available

Safety and Efficacy Trial of Oral Testosterone Undecanoate (TU) in Hypogonadal Men

NCT01403116
View directory record Official record
Conditions
Male Hypogonadism
Interventions
Oral testosterone undecanoate, topical testosterone gel
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
325 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
25
States / cities
Birmingham, Alabama • Calera, Alabama • Huntsville, Alabama + 20 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2018 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Oral Testosterone Undecanoate in Hypogonadal Men

NCT03198728
View directory record Official record
Conditions
Hypogonadism, Male
Interventions
SOV2012-F1, AndroGel
Drug
Lead sponsor
Marius Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
314 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
36
States / cities
Birmingham, Alabama • Mobile, Alabama • Tucson, Arizona + 31 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced Oct 27, 2026, 5:50 PM EDT
Withdrawn Phase 2Phase 3 Interventional

Cycled Testosterone Administration During Pulmonary Rehabilitation in Early Stage COPD

NCT03674320
View directory record Official record
Conditions
COPD
Interventions
Testosterone Enanthate, Placebo
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
40 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 2, 2022 · Synced Oct 27, 2026, 5:50 PM EDT
Terminated Phase 4 Interventional Results available

TOM: Testosterone in Older Men With Sarcopenia

NCT00240981
View directory record Official record
Conditions
Sarcopenia, Hypogonadism, Muscular Diseases
Interventions
Topical testosterone gel 1% (active formulation), Topical gel (placebo formulation)
Drug
Lead sponsor
Boston Medical Center
Other
Eligibility
65 Years and older · Male only
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 23, 2017 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Intranasal Delivery of Testosterone and Its Effect on Doping Markers

NCT02611154
View directory record Official record
Conditions
Abuse of Anabolic Steroids
Interventions
Testosterone
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 11, 2020 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Evaluate the Pharmacokinetics and Gonadotropin Suppression of Nestorone®-Testosterone (NES/T) Combination Gel in Men

NCT02432261
View directory record Official record
Conditions
Healthy
Interventions
Nestorone® /testosterone gel, Testosterone only gel
Drug
Lead sponsor
Kimberly Myer
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
2
States / cities
Torrance, California • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Oct 27, 2026, 5:50 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 27, 2026, 5:50 PM EDT
Completed Phase 4 Interventional Results available

Testosterone Therapy and Bone Quality in Men With Diabetes and Hypogonadism

NCT03887936
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Hypogonadism
Interventions
Testosterone gel 1.62%, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
35 Years to 70 Years · Male only
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

TEAM: Testosterone Supplementation and Exercise in Elderly Men

NCT00112151
View directory record Official record
Conditions
Healthy
Interventions
LowT, Resistance Training, Placebo, HighT
Drug · Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
60 Years and older · Male only
Enrollment
167 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Oct 27, 2026, 5:50 PM EDT
Not yet recruiting Phase 2Phase 3 Interventional

Testosterone Therapy With or Without Finasteride After Spinal Cord Injury: TRT-SCI Trial

NCT07742553
View directory record Official record
Conditions
Spinal Cord Injury, Spinal Cord Injuries, Injuries, Spinal Cord, Spinal Cord Contusion, Spinal Cord Trauma, Trauma, Nervous System, Wounds and Injuries, Spinal Cord Compression, Nervous System Diseases, Spinal Cord Diseases, Gonadal Disorders, Endocrine System Diseases, Hypogonadism, Genital Diseases, Male
Interventions
testosterone cypionate, finasteride, placebo injection, placebo pill
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older · Male only
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2032
U.S. locations
4
States / cities
Aurora, Colorado • Gainesville, Florida • Tampa, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 4 Interventional Results available

The Effect of Testosterone Topical Solution (LY900011) in Hypogonadal Men With Suboptimal Response to a Topical Testosterone Gel

NCT01893281
View directory record Official record
Conditions
Hypogonadism
Interventions
Topical Testosterone Solution
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Male only
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
21
States / cities
Encinitas, California • San Diego, California • Parker, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2014 · Synced Oct 27, 2026, 5:50 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

A Phase 1/2a Study to Determine the Dose Response Pharmacokinetics of TSX-011 (Testosterone Undecanoate) in Hypogonadal Males

NCT03335254
View directory record Official record
Conditions
Hypogonadism, Hypogonadism, Male, Gonadal Disorders, Endocrine System Diseases, Testosterone Deficiency
Interventions
TSX-011
Drug
Lead sponsor
TesoRx Pharma, LLC
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated May 16, 2019 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Testosterone Replacement in Older Men and Atherosclerosis Progression

NCT00287586
View directory record Official record
Conditions
Hypogonadism, Atherosclerosis
Interventions
Testosterone Gel (Androgel), Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
60 Years and older · Male only
Enrollment
308 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2012
U.S. locations
3
States / cities
Phoenix, Arizona • Los Angeles, California • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2017 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 3 Interventional

Study to Evaluate the Safety and Efficacy of Androxal™ Treatment in Men With Secondary Hypogonadism

NCT00962637
View directory record Official record
Conditions
Secondary Hypogonadism
Interventions
Androxal, AndroGel, Placebo
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 68 Years · Male only
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
18
States / cities
Birmingham, Alabama • Huntsville, Alabama • Carmichael, California + 14 more
Source: ClinicalTrials.gov public record
Updated Feb 11, 2010 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sex Steroids, Sleep, and Metabolic Dysfunction in Women

NCT00805207
View directory record Official record
Conditions
Polycystic Ovary Syndrome (PCOS), Obstructive Sleep Apnea, Obesity
Interventions
Progesterone, testosterone, glucocorticoid, continuous positive airway pressure, Estrogen, Control
Drug · Device · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Oct 27, 2026, 5:50 PM EDT
Recruiting Phase 3 Interventional

52 Week Study + 24-Month Long-Term Extension of Safety, PK, & Efficacy of XYOSTED® for Testosterone Replacement in Male Adolescents With Hypogonadism

NCT06689085
View directory record Official record
Conditions
Hypogonadism, Male
Interventions
Testosterone enanthate
Combination Product
Lead sponsor
Halozyme Therapeutics
Industry
Eligibility
12 Years to 17 Years · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
20
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 17 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 2 Interventional Results available

Pharmacokinetic Study of Oral Testosterone (T) Ester Formulations in Hypogonadal Men

NCT00695110
View directory record Official record
Conditions
Hypogonadism
Interventions
Oral testosterone undecanoate (TU) (300 mg T equivalents/dose), Oral testosterone undecanoate (TU) combined with testosterone enanthate (TE) (400 mg T equivalents/dose), Oral testosterone undecanoate (TU) (200 mg T equivalents/dose with and without food), Oral testosterone undecanoate (TU) combined with testosterone enanthate (TE) (300 mg T equivalents/dose)
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 68 Years · Male only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
4
States / cities
Birmingham, Alabama • Los Angeles, California • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 25, 2021 · Synced Oct 27, 2026, 5:50 PM EDT
Recruiting Phase 2 Interventional

The COSMYC Trial (COmbined Suppression of MYC)

NCT06922318
View directory record Official record
Conditions
Metastatic Castration-resistant Prostate Cancer
Interventions
ZEN-3694, Testosterone cypionate, Enzalutamide, Luteinizing hormone-releasing hormone (LHRH) analogue
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 18, 2026 · Synced Oct 27, 2026, 5:50 PM EDT
Recruiting Phase 2 Interventional

Difluoromethylornithine and High Dose Testosterone With Enzalutamide in Metastatic Castration-Resistant Prostate Cancer

NCT06059118
View directory record Official record
Conditions
Prostate Cancer
Interventions
DFMO, testosterone cypionate, Luteinizing hormone-releasing hormone (LHRH) analogue, Enzalutamide
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 2 Interventional Results available

Oral Testosterone for the Treatment of Hypogonadism in Males

NCT02222558
View directory record Official record
Conditions
Hypogonadism
Interventions
TSX-002
Drug
Lead sponsor
TesoRx Pharma, LLC
Industry
Eligibility
18 Years to 70 Years · Male only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 30, 2016 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Not applicable Interventional Results available

Study of Psychological and Motor Effects of Testosterone in Adolescents With XXY/Klinefelter Syndrome

NCT01585831
View directory record Official record
Conditions
Klinefelter Syndrome, XXY Syndrome
Interventions
Testosterone gel 1%, Placebo gel
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
8 Years to 18 Years · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 10, 2021 · Synced Oct 27, 2026, 5:50 PM EDT
Recruiting Phase 2 Interventional

Phase 2a Study of High-Dose Testosterone Followed by Radioligand Therapy in mCRPC

NCT07476001
View directory record Official record
Conditions
Metastatic Castration-resistant Prostate Cancer
Interventions
Testosterone cypionate (Tc), ADT with Luteinizing hormone-releasing hormone (LHRH) analog, PSMA-617
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older · Male only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 15, 2026 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

CYP19A1 (Cytochrome P450 Family 19 Subfamily A Member 1) Gene and Pharmacogenetics of Response to Testosterone Therapy

NCT01378299
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 5, 2019 · Synced Oct 27, 2026, 5:50 PM EDT
Completed Phase 3 Interventional Results available

Ambulatory Blood Pressure Monitoring (ABPM) Extension Study of Oral Testosterone Undecanoate in Hypogonadal Men

NCT04467697
View directory record Official record
Conditions
Hypogonadism, Male
Interventions
SOV2012-F1
Drug
Lead sponsor
Marius Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
19
States / cities
Birmingham, Alabama • Mobile, Alabama • Aventura, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2024 · Synced Oct 27, 2026, 5:50 PM EDT