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ClinicalTrials.gov public records Last synced Oct 1, 2026, 12:27 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–43 of 43 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Placebo for testosterone gel Clear all

Conditions: Secondary Hypogonadism
Interventions: Placebo, topical testosterone, Androxal; Drug
Lead sponsor: Repros Therapeutics Inc.; Industry
Eligibility: 21 Years to 65 Years · Male only
Enrollment: 83 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011
U.S. locations: 18
States / cities: Garden Grove, California • Sacramento, California • San Diego, California + 11 more

Conditions: Hypogonadism, Male, Cancer, Fatigue
Interventions: testosterone 1.62% gel, placebo gel; Drug · Other
Lead sponsor: Seattle Institute for Biomedical and Clinical Research; Other
Eligibility: 55 Years and older · Male only
Enrollment: 230 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2026
U.S. locations: 3
States / cities: Augusta, Georgia • Boston, Massachusetts • Seattle, Washington

Conditions: Erectile Dysfunction, Testosterone Deficiency, Diabetes
Interventions: Sildenafil citrate (open label), Testosterone gel, Placebo gel; Drug · Other
Lead sponsor: Boston University; Other
Eligibility: 40 Years to 70 Years · Male only
Enrollment: 140 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2006 – 2010
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Hypoactive Sexual Desire Disorder
Interventions: transdermal testosterone gel 1%, placebo gel; Drug
Lead sponsor: BioSante Pharmaceuticals; Industry
Eligibility: 30 Years to 66 Years · Female only
Enrollment: 626 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2012
U.S. locations: 98
States / cities: Hoover, Alabama • Huntsville, Alabama • Mobile, Alabama + 91 more

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

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

Conditions: Hypogonadism, Contraception
Interventions: Testosterone gel, Acyline, Placebo acyline, Placebo Testosterone gel; Drug
Lead sponsor: University of Washington; Other
Eligibility: 35 Years to 55 Years · Male only
Enrollment: 13 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2004
U.S. locations: 1
States / cities: Seattle, Washington

Conditions: Hypogonadism
Interventions: Acyline, Placebo Gel, Placebo Tablet, Testosterone Gel, Arimidex; Drug
Lead sponsor: University of Colorado, Denver; Other
Eligibility: 18 Years to 75 Years · Male only
Enrollment: 232 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2016 – 2023
U.S. locations: 1
States / cities: Denver, Colorado

Conditions: Hypogonadism, Diabetes, Sarcopenia, Osteoporosis, Depression
Interventions: Androgel (Testosterone Gel), Anastrozole (Aromatase Inhibitor), Placebo tablet, Placebo gel, Calcium Cardone 500mg with vitamin D 400 IU; Drug · Dietary Supplement
Lead sponsor: National Institute on Aging (NIA); NIH
Eligibility: 65 Years and older · Male only
Enrollment: 44 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2004 – 2015
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: Hypoactive Sexual Desire Disorder
Interventions: testosterone gel, placebo gel; Drug
Lead sponsor: BioSante Pharmaceuticals; Industry
Eligibility: 30 Years to 65 Years · Female only
Enrollment: 575 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2011
U.S. locations: 66
States / cities: Mobile, Alabama • Chandler, Arizona • Glendale, Arizona + 60 more

Conditions: Hypoactive Sexual Desire Disorder
Interventions: testosterone gel, placebo gel; Drug
Lead sponsor: BioSante Pharmaceuticals; Industry
Eligibility: 50 Years and older · Female only
Enrollment: 3,656 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2012
U.S. locations: 141
States / cities: Birmingham, Alabama • Hoover, Alabama • Huntsville, Alabama + 116 more

Conditions: Hip Fracture, Frailty, Sarcopenia
Interventions: Testosterone, Placebo gel, Supervised exercise training, Home exercise program, Health Education Modules; Drug · Behavioral
Lead sponsor: Washington University School of Medicine; Other
Eligibility: 65 Years and older · Female only
Enrollment: 129 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2023
U.S. locations: 8
States / cities: Aurora, Colorado • Farmington, Connecticut • Baltimore, Maryland + 5 more

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

Conditions: Erectile Dysfunction, Sexual Dysfunction
Interventions: Natesto Nasal Product, Placebo; Drug
Lead sponsor: University of Utah; Other
Eligibility: 18 Years to 64 Years · Male only
Healthy volunteers: Accepts healthy volunteers
Timeline: 2023 – 2025
U.S. locations: 1
States / cities: Salt Lake City, Utah

Conditions: Cerebrovascular Disorders
Interventions: Indomethacin, Placebo, Orilissa, Testosterone gel, Anastrozole, Estradiol; Drug
Lead sponsor: University of Wisconsin, Madison; Other
Eligibility: 18 Years to 40 Years
Enrollment: 22 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2024 – 2025
U.S. locations: 1
States / cities: Madison, Wisconsin

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

Conditions: Gonadotropin Deficiency
Interventions: Testosterone 1% Gel, Acyline, Dutasteride, Ketoconazole, HCG, placebo dutasteride, placebo ketoconazole; Drug
Lead sponsor: University of Washington; Other
Eligibility: 18 Years to 55 Years · Male only
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019 – 2026
U.S. locations: 1
States / cities: Seattle, Washington

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

Conditions: Panhypopituitarism
Interventions: Transdermal Testosterone gel; Drug
Lead sponsor: Charles Drew University of Medicine and Science; Other
Eligibility: 18 Years to 55 Years · Female only
Enrollment: 20 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2003 – 2010
U.S. locations: 1
States / cities: Los Angeles, California

Search by objective public record fields.

Normalization of Morning Testosterone Levels in Men With Secondary Hypogonadism

Improving Cancer-related Fatigue, Sexual Dysfunction and Quality of Life in Older Men With Cancer and Androgen Deficiency

Effect of Testosterone in Men With Erectile Dysfunction

Extension Study to Assess Persistence of Benefit of LibiGel for the Treatment of Hypoactive Sexual Desire Disorder (HSDD)

ITT4 Intratesticular Hormonal Milieu in Man (ITT4)

Exercise and Testosterone Therapy in Elderly Men With Physical Frailty

The Effects of Testosterone on Prostate Tissue (ACYP-1)

Cardiovascular Outcomes of Low Testosterone

Effects of Aromatase Inhibition Versus Testosterone in Older Men With Low Testosterone: Randomized-Controlled Trial.

Safety and Efficacy of LibiGel® for Treatment of Hypoactive Sexual Desire Disorder in Surgically Menopausal Women

Safety and Efficacy of LibiGel® for Treatment of Hypoactive Sexual Desire Disorder in Postmenopausal Women

Starting a Testosterone and Exercise Program After Hip Injury

Testosterone Replacement in Older Men and Atherosclerosis Progression

Natesto Testosterone Nasal Gel for Hypogonadal Men

Brain Blood Flow Responses to Stress: Sex Differences

Effect of Dihydrotestosterone (DHT) on Prostate Tissue [Short Title: DHT-3]

ITT-5 Mechanisms of Spermatogenesis in Man

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

Testosterone Gel Applied to Women With Pituitary Gland Problems