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Showing 1–24 of 189 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Study in Erectile Dysfunction

NCT00833638
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Placebo, Tadalafil
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Male only
Enrollment
372 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 23, 2010 · Synced Jul 21, 2026, 11:23 AM EDT
Withdrawn Phase 1 Interventional

Stem Cells for the Improvement of Erectile and Cardiac Function in Aging Men

NCT02107118
View directory record Official record
Conditions
Erectile Dysfunction, Cardiac Disease
Interventions
ARM 1: AdMSC: adipose stem cells, ARM 2: Placebo
Biological · Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
40 Years and older · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 24, 2015 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 3 Interventional

Study to Investigate the Efficacy and Safety of Vardenafil Flexible Dose Versus Placebo in Males With Erectile Dysfunction

NCT00657033
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Levitra (Vardenafil, BAY38-9456), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older · Male only
Enrollment
229 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
18
States / cities
Phoenix, Arizona • Beverly Hills, California • Irvine, California + 14 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2013 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Hemodynamic Study of Avanafil and Two α-Adrenergic Blockers,Doxazosin and Tamsulosin

NCT01100021
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Tamsulosin and avanafil, Doxazosin and avanafil
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
40 Years to 65 Years · Male only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 6, 2011 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Udenafil on Spermatogenesis

NCT01230541
View directory record Official record
Conditions
Spermatogenesis, Erectile Dysfunction
Interventions
Placebo, Udenafil
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
25 Years to 64 Years · Male only
Enrollment
239 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
23
States / cities
Huntsville, Alabama • Anaheim, California • San Diego, California + 19 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2011 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Thorough EKG Safety Study of TA-1790 (Avanafil)

NCT00769041
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
moxifloxacin, avanafil, sugar pill
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 6, 2011 · Synced Jul 21, 2026, 11:23 AM EDT
Terminated Phase 2 Interventional

Efficacy & Safety of Single Dose Alprostadil Cream (2 Concentrations Enhancer) to Vehicle in Men w/Erectile Dysfunction

NCT01810575
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
WC3036-11F/Alprostadil in Vehicle 2.5%, WC3036-12F/Alprostadil in Vehicle 0.5%, WC3036-13P/Vehicle Only 0.5%
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
40 Years and older · Male only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Purchase, New York
Source: ClinicalTrials.gov public record
Updated Aug 11, 2014 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 4 Interventional Results available

Effect of Testosterone in Men With Erectile Dysfunction

NCT00512707
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 28, 2017 · Synced Jul 21, 2026, 11:23 AM EDT
Terminated Not applicable Interventional Results available

Low Intensity Shockwaves Therapy for the Treatment of Erectile Dysfunction. 12- Month Follow-Up

NCT03670628
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Shockwave therapy, Sham shockwave therapy
Device · Other
Lead sponsor
University of Miami
Other
Eligibility
30 Years to 70 Years · Male only
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jul 9, 2023 · Synced Jul 21, 2026, 11:23 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 21, 2026, 11:23 AM EDT
Recruiting Not applicable Interventional

A Single Arm Study of Extracorporeal Shockwave Therapy for Management of Erectile Dysfunction

NCT07592533
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Shockwave therapy
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Male only
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 3 Interventional Results available

A Study in the Treatment of Erectile Dysfunction and Benign Prostate Hyperplasia

NCT00855582
View directory record Official record
Conditions
Erectile Dysfunction, Benign Prostatic Hyperplasia
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
45 Years and older · Male only
Enrollment
606 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
17
States / cities
Anchorage, Alaska • Phoenix, Arizona • La Mesa, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2011 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 1 Interventional

Vardenafil ODT (Orally Disintegrating Tablet) - Nifedipine Interaction Study

NCT01348880
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Vardenafil ODT, (Staxyn, BAY38-9456), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
65 Years to 80 Years · Male only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
2
States / cities
Miami, Florida • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 18, 2014 · Synced Jul 21, 2026, 11:23 AM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Hezkue®, Hezkue Turbo®, and Commercial Sildenafil Products in Fed Healthy Male Subject

NCT07117383
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
ASP-001.1, ASP-001, Commercial Sildenafil and Sildenafil/Tadalafil Products
Device · Drug
Lead sponsor
Aspargo Labs, Inc
Industry
Eligibility
18 Years to 70 Years · Male only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 3 Interventional Results available

Research Evaluating an Investigational Medication for Erectile Dysfunction - General ED

NCT00790751
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
placebo, avanafil
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
18 Years and older · Male only
Enrollment
646 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
41
States / cities
Birmingham, Alabama • Homewood, Alabama • Tucson, Arizona + 33 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2012 · Synced Jul 21, 2026, 11:23 AM EDT
Withdrawn Not applicable Interventional

Focused Shock Wave Therapy Outcomes in Peyronie's Disease and Erectile Dysfunction

NCT05646602
View directory record Official record
Conditions
Peyronie Disease, Penile Curvature, Erectile Dysfunction
Interventions
Collagenase Clostridium Histolyticum, Duolith SD1 T-TOP
Drug · Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 9, 2023 · Synced Jul 21, 2026, 11:23 AM EDT
Active, not recruiting Phase 2 Interventional

Human Amnion Membrane Allograft and Early Return of Erectile Function After Radical Prostatectomy

NCT05842057
View directory record Official record
Conditions
Prostate Cancer, Erectile Dysfunction Following Radical Prostatectomy
Interventions
BioDFence G3 Placental Tissue Membrane, Robot-Assisted Radical Prostatectomy
Biological · Procedure
Lead sponsor
University of Miami
Other
Eligibility
40 Years to 80 Years · Male only
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 21, 2026, 11:23 AM EDT
Terminated Not applicable Interventional

Linear Focused Shockwave Treatment for Erectile Dysfunction

NCT02152683
View directory record Official record
Conditions
Vasculogenic Erectile Dysfunction
Interventions
Renova
Device
Lead sponsor
Initia
Industry
Eligibility
20 Years to 80 Years · Male only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 10, 2022 · Synced Jul 21, 2026, 11:23 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Duke Urology Database and Specimen Bank

NCT00978991
View directory record Official record
Conditions
Prostate Cancer, Bladder Cancer, Erectile Dysfunction, Incontinence
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
87,820 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1988 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 7, 2013 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 3 Interventional Results available

Concomitant Use of PriLigy in Men Treated for Erectile Dysfunction

NCT01063855
View directory record Official record
Conditions
Erectile Dysfunction, Sexual Dysfunction
Interventions
Placebo, Dapoxetine, PDE5I (phosphodiesterase-5 inhibitor)
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
18 Years and older · Male only
Enrollment
495 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
19
States / cities
Decatur, Alabama • Huntsville, Alabama • Englewood, Colorado + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2013 · Synced Jul 21, 2026, 11:23 AM EDT
Completed No phase listed Observational Results available

PROPPER Prospective Registry of Outcomes With Penile Prosthesis

NCT01383018
View directory record Official record
Conditions
Erectile Dysfunction, Impotence
Interventions
AMS Penile Prosthesis Devices
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older · Male only
Enrollment
1,457 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2018
U.S. locations
10
States / cities
Homewood, Alabama • Mountain View, California • San Diego, California + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 11, 2021 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 3 Interventional Results available

Treatment of Erectile Dysfunction I

NCT01037244
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Udenafil, Placebo
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
19 Years and older · Male only
Enrollment
618 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
36
States / cities
Birmingham, Alabama • Homewood, Alabama • Mesa, Arizona + 32 more
Source: ClinicalTrials.gov public record
Updated Dec 21, 2011 · Synced Jul 21, 2026, 11:23 AM EDT
Completed Phase 3 Interventional

A Study to Investigate the Time to Onset of Action of 10 mg and 20 mg of Vardenafil Compared to Placebo in Males With Erectile Dysfunction

NCT00665496
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Levitra (Vardenafil, BAY38-9456), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older · Male only
Enrollment
732 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003
U.S. locations
12
States / cities
Phoenix, Arizona • Beverly Hills, California • San Bernardino, California + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2014 · Synced Jul 21, 2026, 11:23 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

The Impact of Dietary Pattern on Erectile Function

NCT04349059
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Animal based diet, Plant based diet
Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Nov 11, 2025 · Synced Jul 21, 2026, 11:23 AM EDT