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ClinicalTrials.gov public records Last synced Oct 17, 2026, 9:16 AM EDT

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Showing 1–24 of 55 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Tadalafil Placebo Clear all
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 31, 2026 · Synced Oct 17, 2026, 9:16 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 28, 2020 · Synced Oct 17, 2026, 9:16 AM EDT
Recruiting Phase 3 Interventional

Study of Tadalafil vs. Placebo for Improving Hemodynamics and End-Organ Dysfunction in Fontan Physiology

NCT05206955
View directory record Official record
Conditions
Fontan Palliation
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 17, 2026, 9:16 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 27, 2013 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Phase 3 Interventional

PHIRST-1: Tadalafil in the Treatment of Pulmonary Arterial Hypertension

NCT00125918
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
tadalafil, placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
12 Years and older
Enrollment
406 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
3
States / cities
Tucson, Arizona • Minneapolis, Minnesota • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Feb 21, 2008 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Not applicable Interventional Results available

Tadalafil in Treating Patients Undergoing Surgery for Cancer of the Oral Cavity or Oropharynx

NCT00843635
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
Tadalafil, Placebo
Drug · Other
Lead sponsor
Donald T. Weed
Other
Eligibility
18 Years to 120 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 19, 2015 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

PDE5 Inhibition for Obesity-Related Cardiometabolic Dysfunction

NCT02819440
View directory record Official record
Conditions
Healthy, Obese
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
21 Years to 50 Years
Enrollment
141 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 27, 2022 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Phase 2 Interventional Results available

A Study of LY2623091 in Participants With High Blood Pressure

NCT02194465
View directory record Official record
Conditions
Primary Hypertension
Interventions
LY2623091, Tadalafil, Spironolactone, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 80 Years
Enrollment
304 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
33
States / cities
Glendale, Arizona • Concord, California • Encinitas, California + 28 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2020 · Synced Oct 17, 2026, 9:16 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 25, 2007 · Synced Oct 17, 2026, 9:16 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 15, 2026 · Synced Oct 17, 2026, 9:16 AM EDT
Terminated Phase 4 Interventional Results available

Aortic Stenosis and PhosphodiEsterase iNhibition With Aortic Valve Replacement (ASPEN-AVR): A Pilot Study

NCT01272388
View directory record Official record
Conditions
Aortic Stenosis
Interventions
Tadalafil, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Oct 17, 2026, 9:16 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 15, 2026 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Not applicable Interventional Results available

Tadalafil for the Treatment of Raynaud's

NCT00822354
View directory record Official record
Conditions
Raynaud
Interventions
Tadalafil
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 4, 2014 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Phase 3 Interventional

A Study to Evaluate the Efficacy and Safety of 2.5mg and 5mg Tadalafil Given Once a Day to Men With Erectile Dysfunction

NCT00381732
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
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Bothell, Washington
Source: ClinicalTrials.gov public record
Updated Nov 7, 2007 · Synced Oct 17, 2026, 9:16 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 30, 2012 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of PDE5 Inhibition on Adipose Metabolism in Humans

NCT04684589
View directory record Official record
Conditions
Obesity
Interventions
Tadalafil 20 MG, Placebo
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
19 Years to 50 Years
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Phase 3 Interventional Results available

Study to Treat Patients Who Have Signs and Symptoms of Benign Prostatic Hyperplasia (BPH) With Tadalafil Daily

NCT00827242
View directory record Official record
Conditions
Benign Prostatic Hyperplasia
Interventions
Placebo, tadalafil
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
45 Years and older · Male only
Enrollment
325 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
12
States / cities
Huntsville, Alabama • Middlebury, Connecticut • Sarasota, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2010 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Phase 3 Interventional Results available

A Study of Tadalafil in Men With Benign Prostatic Hyperplasia Symptoms Who Are Being Treated With Alpha Blockers

NCT00848081
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
318 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
28
States / cities
Huntsville, Alabama • Anchorage, Alaska • Anaheim, California + 25 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2010 · Synced Oct 17, 2026, 9:16 AM EDT
Completed Phase 3 Interventional Results available

Clinical Study to Compare the Efficacy and Safety of Macitentan and Tadalafil Monotherapies With the Corresponding Fixed-dose Combination Therapy in Subjects With Pulmonary Arterial Hypertension (PAH)

NCT03904693
View directory record Official record
Conditions
Pulmonary Arterial Hypertension (PAH) (WHO Group 1 PH)
Interventions
FDC macitentan/tadalafil, Macitentan 10 mg, Tadalafil 40 mg, Placebo FDC, Placebo macitentan, Placebo tadalafil
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
26
States / cities
Fullerton, California • Los Angeles, California • Atlanta, Georgia + 22 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2025 · Synced Oct 17, 2026, 9:16 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 22, 2018 · Synced Oct 17, 2026, 9:16 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 Systolic Cardiomyopathy (Aim2)

NCT01970176
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
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 11, 2021 · Synced Oct 17, 2026, 9:16 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 4, 2013 · Synced Oct 17, 2026, 9:16 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 24, 2010 · Synced Oct 17, 2026, 9:16 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 25, 2007 · Synced Oct 17, 2026, 9:16 AM EDT