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Showing 1–24 of 145 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hypogonadism, Male Clear all
Completed Phase 4 Interventional Results available

Subcutaneous vs. Intramuscular Testosterone

NCT03091348
View directory record Official record
Conditions
Testosterone Deficiency, Hypogonadism, Male
Interventions
Testosterone
Drug
Lead sponsor
Men's Health Boston
Other
Eligibility
18 Years to 90 Years · Male only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Chestnut Hill, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Jul 22, 2026, 5:56 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

TRT as an Adjunctive ERAS Therapy in ESRD Patients Undergoing Kidney Transplantation

NCT07287800
View directory record Official record
Conditions
Hypogonadism, Male, End Stage Renal Disease (ESRD), Kidney Transplant
Interventions
Testosterone Replacement Therapy
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Jul 22, 2026, 5:56 AM EDT
Completed No phase listed Observational

Adaptation Among Adolescents and Adults With Klinefelter Syndrome

NCT00896272
View directory record Official record
Conditions
Klinefelter Syndrome
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
14 Years to 80 Years · Male only
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Jul 22, 2026, 5:56 AM EDT
Suspended No phase listed Observational

7 Tesla MRI Neuroimaging in Testicular Cancer Patients With Hypogonadism and on Androgen Replacement Therapy

NCT06191575
View directory record Official record
Conditions
Hypogonadism, Malignant Testicular Germ Cell Tumor
Interventions
7 Tesla Magnetic Resonance Imaging, Biospecimen Collection, Cognitive Assessment
Procedure
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jul 22, 2026, 5:56 AM EDT
Terminated Early Phase 1 Interventional Results available

Testosterone for Penile Rehabilitation After Radical Prostatectomy

NCT00848497
View directory record Official record
Conditions
Hypogonadism, Erectile Dysfunction
Interventions
Testim®, Placebo Testim®, Viagra®
Drug · Other
Lead sponsor
Mohit Khera
Other
Eligibility
18 Years and older · Male only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 18, 2015 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 2 Interventional

Clomid in Men With Low Testosterone With and Without Prior Treatment

NCT01904734
View directory record Official record
Conditions
Hypogonadism, Male
Interventions
Clomiphene
Drug
Lead sponsor
Phoenix VA Health Care System
Federal
Eligibility
30 Years to 70 Years · Male only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 9, 2021 · Synced Jul 22, 2026, 5:56 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Non-Invasive Determination of Fetal Chromosome Abnormalities

NCT00891852
View directory record Official record
Conditions
Down Syndrome (Trisomy 21), Edward's Syndrome (Trisomy 18), Patau Syndrome (Trisomy 13), Klinefelter Syndrome (47, XXY), and Other Chromosome, Abnormalities.
Interventions
Not listed
Lead sponsor
Lenetix Medical Screening Laboratory
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
7
States / cities
Rockville, Maryland • Moristown, New Jersey • Mineola, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2009 · Synced Jul 22, 2026, 5:56 AM EDT
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 13, 2018 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 3 Interventional Results available

Subcutaneous Testosterone Enanthate Safety in Adult Men Diagnosed With Hypogonadism

NCT02504541
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone enanthate auto-injector
Combination Product
Lead sponsor
Antares Pharma Inc.
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
20
States / cities
Birmingham, Alabama • Mobile, Alabama • Tucson, Arizona + 17 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2018 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 2 Interventional Results available

Pharmacokinetic Study to Determine Time to Steady-state

NCT00911586
View directory record Official record
Conditions
Male Hypogonadism, Primary Hypogonadism, Secondary Hypogonadism
Interventions
Testosterone undecanoate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Dec 10, 2020 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 2 Interventional Results available

Clomiphene Citrate for the Treatment of Low Testosterone Associated With Chronic Opioid Pain Medication Administration

NCT01880086
View directory record Official record
Conditions
Hypogonadism, Opioid-Related Disorders, Male Infertility
Interventions
Clomiphene citrate, Placebo
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Jul 22, 2026, 5:56 AM EDT
Withdrawn Early Phase 1 Interventional

Androgen Regulation of Priapism in Sickle Cell Disease

NCT01940718
View directory record Official record
Conditions
Priapism, Sickle Cell Disease, Hypogonadism
Interventions
Transdermal Androgel
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 50 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Jul 22, 2026, 5:56 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 17, 2017 · Synced Jul 22, 2026, 5:56 AM 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 27, 2024 · Synced Jul 22, 2026, 5:56 AM 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 15, 2019 · Synced Jul 22, 2026, 5:56 AM EDT
Completed No phase listed Observational

Investigation of the Genetic Causes of Kallmann Syndrome and Reproductive Disorders

NCT00494169
View directory record Official record
Conditions
Hypogonadotropic Hypogonadism, Kallmann Syndrome, Puberty, Delayed, Puberty, Precocious, GnRH Deficiency
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
4,042 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 3 Interventional Results available

Subcutaneous Testosterone Replacement Efficacy and Safety in Adult Men Diagnosed With Hypogonadism

NCT02159469
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone enanthate auto-injector
Combination Product
Lead sponsor
Antares Pharma Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
28
States / cities
Birmingham, Alabama • Huntsville, Alabama • Tucson, Arizona + 25 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2018 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacokinetic Study of Subcutaneous Testosterone Enanthate

NCT02233751
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone enanthate auto-injector
Combination Product
Lead sponsor
Antares Pharma Inc.
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 18, 2019 · Synced Jul 22, 2026, 5:56 AM EDT
Completed No phase listed Observational Results available

Perioperative Hypogonadism in Men Undergoing Radical Cystoprostatectomy for Bladder Cancer

NCT03063125
View directory record Official record
Conditions
Bladder Cancer, Low Testosterone Levels
Interventions
Not listed
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Male only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 2, 2021 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 4 Interventional Results available

A Study of the Effect of Testosterone Replacement Therapy on Blood Pressure in Adult Male Participants With Hypogonadism

NCT04456296
View directory record Official record
Conditions
Hypogonadism, Hypogonadism, Male, Hypogonadotropic Hypogonadism
Interventions
Aveed Injectable Product, Fortesta, Testim
Drug
Lead sponsor
Endo USA Inc., a Keenova Therapeutics Company
Industry
Eligibility
18 Years and older · Male only
Enrollment
673 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
35
States / cities
Birmingham, Alabama • Tucson, Arizona • North Little Rock, Arkansas + 27 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2025 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 3 Interventional

Bioequivalence Study of Test and Reference Testosterone Topical Gel, 1.62% Metered Pump in Testosterone Deficient Adult Male Subjects Under Fasting Conditions

NCT02110368
View directory record Official record
Conditions
Primary Hypogonadism, Hypogonadotropic Hypogonadism
Interventions
Testosterone Topical Gel, 1.62% Metered Pump, AndroGel (testosterone gel) 1.62% Metered-Dose Pump
Drug
Lead sponsor
Amneal Pharmaceuticals, LLC
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Miami Gardens, Florida
Source: ClinicalTrials.gov public record
Updated Jun 25, 2014 · Synced Jul 22, 2026, 5:56 AM 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 17, 2026 · Synced Jul 22, 2026, 5:56 AM 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 24, 2021 · Synced Jul 22, 2026, 5:56 AM EDT
Completed Phase 2 Interventional Results available

Androgen Effect on Klinefelter Syndrome Motor Outcome

NCT00348946
View directory record Official record
Conditions
Klinefelter Syndrome
Interventions
androgen oxandrolone, placebo
Drug · Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
4 Years to 12 Years · Male only
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 7, 2021 · Synced Jul 22, 2026, 5:56 AM EDT