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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hypogonadism Clear all
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 28, 2026, 1:26 PM EDT
Completed Phase 2 Interventional Results available

Prolonged Pulsatile Kisspeptin Administration in Hypogonadotropic Hypogonadism

NCT04648969
View directory record Official record
Conditions
Hypogonadotropic Hypogonadism
Interventions
kisspeptin 112-121, GnRH
Drug
Lead sponsor
Stephanie B. Seminara, MD
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 28, 2026, 1:26 PM EDT
Completed Phase 3 Interventional Results available

Testopel ® vs. Generic Testosterone Pellets.

NCT04523480
View directory record Official record
Conditions
Hypogonadism
Interventions
Testopel 75mg Drug Implant, Testopel 100mg Drug Implant, Testopel 200mg Drug Implant
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 75 Years · Male only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Sep 28, 2026, 1:26 PM EDT
Not listed Not applicable Interventional

Baselines in Reproductive Disorders

NCT00456274
View directory record Official record
Conditions
Amenorrhea, Hypogonadotropic Hypogonadism, Kallmann's Syndrome
Interventions
Frequent baseline blood sampling
Procedure
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 3, 2014 · Synced Sep 28, 2026, 1:26 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 17, 2026 · Synced Sep 28, 2026, 1:26 PM EDT
Recruiting Phase 2 Interventional

Testosterone Treatment in Men With Chronic Kidney Disease

NCT05249634
View directory record Official record
Conditions
Hypogonadism, Male, Kidney Disease, Chronic
Interventions
Jatenzo Pill
Drug
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 85 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 28, 2026, 1:26 PM EDT
Recruiting No phase listed Observational

Late Subclinical Cardiovascular Disease in Testicular Cancer Survivors

NCT05611307
View directory record Official record
Conditions
Testicular Cancer, Survivorship, ASCVD, Coronary Artery Disease, Lipid Disorder, Hypogonadism, Male, Cisplatin Adverse Reaction, Bone Marrow Transplant Complications
Interventions
Lipid profile, Coronary artery assessment, Hormone levels for hypogonadism
Diagnostic Test
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 99 Years · Male only
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 26, 2026 · Synced Sep 28, 2026, 1:26 PM EDT
Completed Phase 2 Interventional Results available

RA-2 13-cis Retinoic Acid (Isotretinoin)

NCT02061384
View directory record Official record
Conditions
Male Infertility, Klinefelter's Syndrome, Y-chromosome Microdeletions
Interventions
13-cis retinoic acid, Calcitriol
Drug
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 60 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 1, 2021 · Synced Sep 28, 2026, 1:26 PM EDT
Completed Phase 3 Interventional

Estrogen Treatment (Oral vs. Patches) in Turner Syndrome

NCT00140998
View directory record Official record
Conditions
Turner Syndrome, Hypogonadism, Premature Ovarian Failure
Interventions
17 beta estradiol
Drug
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
10 Years to 16 Years · Female only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 29, 2017 · Synced Sep 28, 2026, 1:26 PM 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 Sep 28, 2026, 1:26 PM EDT
Completed Phase 3 Interventional

Assessment of the Effects of Enclomiphene Citrate on Bone Mineral Density in Men With Secondary Hypogonadism

NCT01619683
View directory record Official record
Conditions
Effect of Treatment on Bone Mineral Density
Interventions
enclomiphene citrate, Placebo
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
17
States / cities
Mesa, Arizona • Phoenix, Arizona • Tempe, Arizona + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2014 · Synced Sep 28, 2026, 1:26 PM EDT
Completed Phase 3 Interventional Results available

A Trial to Evaluate the Ongoing Skin Safety of Testosterone MD-Lotion Formulations

NCT00857454
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone MD-Lotion
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Male only
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
11
States / cities
Birmingham, Alabama • Tuscon, Arizona • Burbank, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jan 4, 2011 · Synced Sep 28, 2026, 1:26 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

The Effects of Reproductive Hormones on Mood and Behavior

NCT00001322
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Leuprolide Acetate 3.75, Estradiol, Progesterone, Placebo suppository, Placebo patch
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 50 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1994 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Sep 28, 2026, 1:26 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Intranasal TBS-1 Treatment of Male Hypogonadism

NCT01446042
View directory record Official record
Conditions
Male Hypogonadism
Interventions
Testosterone
Drug
Lead sponsor
Acerus Pharmaceuticals Corporation
Industry
Eligibility
18 Years to 80 Years · Male only
Enrollment
306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
30
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 26 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2018 · Synced Sep 28, 2026, 1:26 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Hormonal Causes of Menstrual-Related Mood Disorders

NCT00100360
View directory record Official record
Conditions
Mood Disorders, Depression
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 28, 2026, 1:26 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessment of Blood From Men Receiving Oral TU in Various Collection Tubes

NCT03973840
View directory record Official record
Conditions
Hypogonadism, Male
Interventions
Testosterone Undecanoate
Drug
Lead sponsor
Clarus Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Northbrook, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 8, 2019 · Synced Sep 28, 2026, 1:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dose-Response of Gonadal Steroids and Bone Turnover in Older Men

NCT00114114
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Testosterone, Goserelin acetate
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
60 Years to 75 Years · Male only
Enrollment
177 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Sep 28, 2026, 1:26 PM EDT
Recruiting No phase listed Observational

The REgistry of Very Early Estrogen and AnovuLation

NCT06583408
View directory record Official record
Conditions
Hypothalamic Amenorrhea, Functional, Hypothalamic Amenorrhea, Functional Hypogonadotropic Hypogonadism
Interventions
Automated Self-Administered 24-hour Dietary Assessment Tool (ASA24), REVEAL Questionnaire
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
2
States / cities
Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 20, 2025 · Synced Sep 28, 2026, 1:26 PM EDT
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 Sep 28, 2026, 1:26 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Estrogen Dosing in Turner Syndrome: Pharmacology and Metabolism

NCT00837616
View directory record Official record
Conditions
Turner Syndrome, Hypogonadism, Premature Ovarian Failure
Interventions
17 B estradiol orally, 17 B estradiol
Drug
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
13 Years to 20 Years · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
2
States / cities
Jacksonville, Florida • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 15, 2023 · Synced Sep 28, 2026, 1:26 PM EDT
Recruiting No phase listed Observational

The eXtroardinarY Babies Study: Natural History of Health and Neurodevelopment in Infants and Young Children With Sex Chromosome Trisomy

NCT03396562
View directory record Official record
Conditions
Klinefelter Syndrome, Trisomy X, XYY Syndrome, XXXY and XXXXY Syndrome, Xxyy Syndrome, Xyyy Syndrome, Xxxx Syndrome, Xxxxx Syndrome, Xxxyy Syndrome, Xxyyy Syndrome, Xyyyy Syndrome, Male With Sex Chromosome Mosaicism
Interventions
Assessments of Development and Growth
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
6 Weeks to 13 Months
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
2
States / cities
Aurora, Colorado • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 8, 2024 · Synced Sep 28, 2026, 1:26 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 15, 2019 · Synced Sep 28, 2026, 1:26 PM 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 Sep 28, 2026, 1:26 PM EDT
Completed Phase 1 Interventional

Examination of Idiopathic Hypogonadotropic Hypogonadism (IHH)and Kallmann Syndrome (KS)

NCT00392756
View directory record Official record
Conditions
Kallmann Syndrome, Hypogonadotropic Hypogonadism, GnRH Deficiency
Interventions
gonadotropin releasing hormone (GnRH)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
16 Years and older
Enrollment
624 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1989 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 10, 2022 · Synced Sep 28, 2026, 1:26 PM EDT