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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Tadalafil Placebo Clear all
Completed Phase 2Phase 3 Interventional Results available

Study of Tadalafil Once-a Day for 12 Weeks in Men With Signs and Symptoms of Benign Prostatic Hyperplasia

NCT00384930
View directory record Official record
Conditions
Benign Prostatic Hyperplasia
Interventions
tadalafil, placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
45 Years and older · Male only
Enrollment
1,058 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Greenwood, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 1, 2009 · Synced Sep 29, 2026, 2:20 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 Sep 29, 2026, 2:20 AM EDT
Terminated Phase 3 Interventional Results available

A Study of Tadalafil for Duchenne Muscular Dystrophy

NCT01865084
View directory record Official record
Conditions
Muscular Dystrophy, Duchenne
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
7 Years to 14 Years · Male only
Enrollment
331 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
23
States / cities
Los Angeles, California • Sacramento, California • Aurora, Colorado + 20 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2019 · Synced Sep 29, 2026, 2:20 AM EDT
Recruiting Phase 2 Interventional

Breathe Easier With Tadalafil Therapy for Dyspnea in COPD-PH

NCT05937854
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Pulmonary Hypertension, Dyspnea
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
35 Years to 89 Years
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
5
States / cities
Aurora, Colorado • Decatur, Georgia • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 29, 2026, 2:20 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

The Effects of Mirabegron and Tadalafil on Glucose Tolerance in Prediabetics

NCT05051436
View directory record Official record
Conditions
Pre-diabetes, Obesity
Interventions
Mirabegron 50 MG, Tadalafil 10 MG, Placebo
Drug
Lead sponsor
Philip Kern
Other
Eligibility
35 Years to 65 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 1 Interventional

Effect of Tadalafil on Exercise Capacity in Pediatric Fontan Patients

NCT01291069
View directory record Official record
Conditions
Single Ventricle
Interventions
Tadalafil Citrate, Sugar pill
Drug
Lead sponsor
University of Utah
Other
Eligibility
8 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 16, 2017 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 3 Interventional Results available

A Study of Tadalafil in Pediatric Participants With Pulmonary Arterial Hypertension (PAH)

NCT01824290
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Tadalafil, Placebo, ERA as specific PAH treatment
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
6 Months to 17 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
7
States / cities
Atlanta, Georgia • Detroit, Michigan • Cincinnati, Ohio + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Trial of Tadalafil and Glycemic Traits

NCT01444651
View directory record Official record
Conditions
Cardiovascular Disease, Insulin Resistance, Glucose Intolerance, Obesity
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Thomas J. Wang, MD
Other
Eligibility
18 Years to 50 Years
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 29, 2017 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 2 Interventional

Tadalafil in Subjects With Mild to Moderate Hypertension

NCT00157326
View directory record Official record
Conditions
Hypertension
Interventions
tadalafil
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Bothell, Washington
Source: ClinicalTrials.gov public record
Updated Oct 24, 2007 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 4 Interventional Results available

A Study in Erectile Dysfunction

NCT01130532
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Male only
Enrollment
623 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
34
States / cities
Huntsville, Alabama • Lancaster, California • Newport Beach, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jan 3, 2013 · Synced Sep 29, 2026, 2:20 AM EDT
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 Sep 29, 2026, 2:20 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Tadalafil in Preventing Erectile Dysfunction in Patients With Prostate Cancer Treated With Radiation Therapy

NCT00931528
View directory record Official record
Conditions
Prostate Cancer, Sexual Dysfunction
Interventions
Tadalafil, Placebo
Drug · Other
Lead sponsor
Radiation Therapy Oncology Group
Network
Eligibility
18 Years to 120 Years · Male only
Enrollment
242 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
183
States / cities
Birmingham, Alabama • Mobile, Alabama • Peoria, Arizona + 151 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2018 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Study to Determine How Cialis Effects the Renal Function in Response to Volume Expansion in Preclinical Diastolic Cardiomyopathy (Aim3)

NCT02058095
View directory record Official record
Conditions
Cardiomyopathy, Renal Impairment
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years to 90 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 27, 2020 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 3 Interventional Results available

A Study in Benign Prostatic Hyperplasia

NCT01152190
View directory record Official record
Conditions
Benign Prostatic Hyperplasia
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
45 Years and older · Male only
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
3
States / cities
Chicago, Illinois • Garden City, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated May 19, 2013 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 4 Interventional Results available

Study of Add-on Ambrisentan Therapy to Background Phosphodiesterase Type-5 Inhibitor (PDE5i) Therapy in Pulmonary Arterial Hypertension (ATHENA-1)

NCT00617305
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Ambrisentan, Placebo, Sildenafil, Tadalafil
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
16 Years to 75 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
30
States / cities
Mobile, Alabama • Phoenix, Arizona • Los Angeles, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2012 · Synced Sep 29, 2026, 2:20 AM EDT
Recruiting Phase 2 Interventional

Vasodilator and Exercise Study for DMD (VASO-REx)

NCT06290713
View directory record Official record
Conditions
Duchenne Muscular Dystrophy, Duchenne Disease, Muscular Dystrophy, Muscular Dystrophy in Children, Vasodilation, Exercise, DMD
Interventions
Tadalafil, Placebo, Exercise Training
Drug · Other
Lead sponsor
University of Florida
Other
Eligibility
6 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 3 Interventional

Efficacy and Safety of Tadalafil in Subjects With Erectile Dysfunction Caused by Spinal Cord Injury

NCT00421083
View directory record Official record
Conditions
Erectile Dysfunction, Spinal Cord Injuries
Interventions
tadalafil
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Male only
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 24, 2007 · Synced Sep 29, 2026, 2:20 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Effects of a Nitrate Supplementation on Erectile Function

NCT06213077
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Nitric Oxide, Tadalafil, Placebo
Dietary Supplement · Drug · Other
Lead sponsor
RHA Investments Ltd
Industry
Eligibility
40 Years to 65 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 18, 2024 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 1 Interventional

PDE5 Inhibition Via Tadalafil to Enhance Anti-Tumor Mucin 1 (MUC1) Vaccine Efficacy in Patients With HNSCC

NCT02544880
View directory record Official record
Conditions
Head and Neck Squamous Cell Carcinoma, Head and Neck Cancer
Interventions
Tadalafil, Anti-MUC1 Vaccine, Anti-Influenza Vaccine, Tadalafil Placebo, Anti-MUC1 Vaccine Placebo, Standard of Care Treatment, Anti-Influenza Vaccine Placebo
Drug · Biological · Other
Lead sponsor
Donald T. Weed, MD, FACS
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 2 Interventional Results available

Effects of Tadalafil Once a Day for 12 Weeks in Men With Signs and Symptoms of Benign Prostatic Hyperplasia

NCT00386009
View directory record Official record
Conditions
Benign Prostatic Hyperplasia
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
40 Years and older · Male only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
8
States / cities
Newport Beach, California • Tarzana, California • Middlebury, Connecticut + 5 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2009 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 3 Interventional Results available

A Study of Tadalafil Use With Finasteride in Men With Enlarged Prostates and Urinary Symptoms

NCT01139762
View directory record Official record
Conditions
Benign Prostatic Hyperplasia, Enlarged Prostate
Interventions
Tadalafil, Placebo, Finasteride
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
45 Years and older · Male only
Enrollment
696 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
10
States / cities
Davis, California • Fresno, California • Laguna Hills, California + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2013 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Sildenafil and Tadalafil on Skeletal Muscle and Perceptual Fatigue

NCT01661595
View directory record Official record
Conditions
Fatigue
Interventions
Sildenafil, tadalafil, Placebo
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
50 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Tadalafil and Nesiritide as Therapy in Pre-clinical Heart Failure

NCT01544998
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Nesiritide, Tadalafil, Placebo, Saline load
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years to 90 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 21, 2018 · Synced Sep 29, 2026, 2:20 AM EDT
Completed Phase 2 Interventional Results available

Tadalafil for Pulmonary Hypertension Due to Chronic Lung Disease

NCT01862536
View directory record Official record
Conditions
Pulmonary Hypertension, Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Tadalafil, placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years to 85 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
5
States / cities
West Los Angeles, California • Denver, Colorado • Decatur, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2021 · Synced Sep 29, 2026, 2:20 AM EDT