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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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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 27, 2015 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Testosterone Pellets Plus Vitamin D and E Versus Vitamin D and E Alone for the Treatment of Peyronie's Disease

NCT01578473
View directory record Official record
Conditions
Peyronie's Disease
Interventions
Vitamin D2, Vitamin E, Testosterone Pellets
Drug
Lead sponsor
Men's Health Boston
Other
Eligibility
18 Years to 70 Years · Male only
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Chestnut Hill, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 28, 2018 · Synced Sep 20, 2026, 9:45 AM 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 3, 2019 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

ITT4 Intratesticular Hormonal Milieu in Man (ITT4)

NCT01215292
View directory record Official record
Conditions
Healthy Males
Interventions
Acyline, Testosterone gel, ketoconazole 400, Ketoconazole 800, Dutasteride, Anastrozole, Placebo ketoconazole
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 30, 2014 · Synced Sep 20, 2026, 9:45 AM 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 1, 2020 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

PROS-1-Male Hormonal Contraceptive Regimens on Prostate Tissue

NCT00490555
View directory record Official record
Conditions
Healthy
Interventions
Testosterone gel, Dutasteride, Depo-Medroxyprogesterone (DMPA), Placebo Testosterone gel, Placebo dutasteride, Placebo DMPA
Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
25 Years to 55 Years · Male only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 14, 2013 · Synced Sep 20, 2026, 9:45 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 27, 2021 · Synced Sep 20, 2026, 9:45 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Randomized Phase II Trial of Targeted Radiation With no Castration for Mcrpc

NCT06084338
View directory record Official record
Conditions
Prostate Cancer
Interventions
stereotactic ablative radiotherapy, Pluvicto, topical testosterone
Radiation · Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
4
States / cities
West Los Angeles, California • Hines, Illinois • Indianapolis, Indiana + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

The Role of 5-alpha Reductase in Mediating Testosterone Actions

NCT00493987
View directory record Official record
Conditions
Healthy
Interventions
Testosterone Enanthate, Dutasteride
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 50 Years · Male only
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 12, 2010 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 4 Interventional

TESTO: Testosterone Effects on Short-Term Outcomes in Infants With XXY

NCT03325647
View directory record Official record
Conditions
Klinefelter Syndrome
Interventions
Testosterone Cypionate 200 Milligram/Milliliter Injectable Solution, Placebo injectable saline
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
31 Days to 90 Days · Male only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 5, 2022 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Male Hormonal Contraceptive Development-ACY-5

NCT00161447
View directory record Official record
Conditions
Contraception
Interventions
Acyline, Testosterone Gel, Depo-Medroxyprogesterone
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 18, 2008 · Synced Sep 20, 2026, 9:45 AM EDT
Terminated Phase 1 Interventional Results available

Sex-Mismatched Allogeneic Bone Marrow Transplantation for Men With Metastatic Castration-Resistant Prostate Cancer

NCT02995330
View directory record Official record
Conditions
Prostate Cancer
Interventions
Bone marrow transplantation, Cytoxan, testosterone cypionate
Procedure · Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years to 75 Years · Male only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Hormonal Mechanisms of Sleep Restriction

NCT02256865
View directory record Official record
Conditions
Insulin Resistance
Interventions
Ketoconazole, Hydrocortisone, Testosterone, Placebo for ketoconazole, Placebo for hydrocortisone, Placebo for testosterone
Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
22 Years to 45 Years · Male only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2023
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 20, 2026, 9:45 AM EDT
Recruiting Phase 2 Interventional

Locomotor Training With Testosterone to Promote Bone and Muscle Health After Spinal Cord Injury

NCT04460872
View directory record Official record
Conditions
Spinal Cord Injury, Spinal Cord Injuries, Trauma, Nervous System, Wounds and Injury, Central Nervous System Diseases, Spinal Cord Diseases, Gonadal Disorders, Endocrine System Diseases, Hypogonadism, Genital Diseases, Male, Spinal Cord Trauma, Injuries, Spinal Cord, Walking, Difficulty, Gait Disorders, Neurologic, Locomotion Disorder, Neurologic, Wounds and Injuries, Nervous System Diseases, Testosterone Deficiency, Androgen Deficiency, Hormone Deficiency
Interventions
Testosterone Enanthate, Locomotor Training
Drug · Behavioral
Lead sponsor
North Florida Foundation for Research and Education
Other
Eligibility
18 Years and older · Male only
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
2
States / cities
Gainesville, Florida • Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 5, 2025 · Synced Sep 20, 2026, 9:45 AM 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 26, 2014 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 2 Interventional Results available

Docetaxel With Rapid Hormonal Cycling as a Treatment for Patients With Prostate Cancer

NCT00587431
View directory record Official record
Conditions
Prostate Cancer
Interventions
GnRh (Leuprolide), Testosterone Gel, Docetaxel
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 2 Interventional Results available

Pilot Pharmacokinetic Study of Oral Testosterone Ester Formulations in Hypogonadal Men

NCT02697188
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone undecanoate, Testosterone enanthate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
2
States / cities
Los Angeles, California • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 31, 2018 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Pharmacokinetic Study of Testosterone Enanthate

NCT01887418
View directory record Official record
Conditions
Hypogonadism
Interventions
QuickShot™ - 50 mg Treatment B, QuickShot™ - 100 mg Treatment A, Delatestryl 200 mg IM Treatment C
Drug
Lead sponsor
Antares Pharma Inc.
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Brookline, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 10, 2018 · Synced Sep 20, 2026, 9:45 AM EDT
Not listed Phase 1Phase 2 Interventional

TRT in Combination With Electrical Stimulation and Standing: Effect on Muscle and Bone in Spinal Cord Injured Males

NCT02317640
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Testosterone Gel applied by a pump, Stand Training, Electrical Stimulation
Drug · Other · Device
Lead sponsor
Kessler Foundation
Other
Eligibility
18 Years to 58 Years · Male only
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
West Orange, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 21, 2017 · Synced Sep 20, 2026, 9:45 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 5, 2024 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 3 Interventional Results available

Time to Eugonadal Range, Time to Steady State and Drying Time

NCT01228071
View directory record Official record
Conditions
Male Hypogonadism
Interventions
testosterone gel 2%
Drug
Lead sponsor
Endo USA Inc., a Keenova Therapeutics Company
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
8
States / cities
Tucson, Arizona • Middlebury, Connecticut • Oviedo, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2017 · Synced Sep 20, 2026, 9:45 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Trial of Testosterone Undecanoate for Optimizing Performance During Military Operations

NCT04120363
View directory record Official record
Conditions
Caloric Restriction, Exercise, Sleep
Interventions
Testosterone Undecanoate, Sesame Oil
Drug
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Oct 6, 2022 · Synced Sep 20, 2026, 9:45 AM EDT
Active, not recruiting Phase 2 Interventional

The Anabolic Effect of Testosterone on Pelvic Floor Muscles

NCT06111209
View directory record Official record
Conditions
Stress Urinary Incontinence, Menopause
Interventions
Testosterone cypionate, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
60 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Sep 20, 2026, 9:45 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 21, 2018 · Synced Sep 20, 2026, 9:45 AM EDT