Clinical trials: Sildenafil
Age-related Macular Degeneration
Effects of Sildenafil on Choroidal Thickness in AMD
Choroidal thinning has been hypothesized to partake in the pathogenesis of age-related macular degeneration (AMD), but it is not known if increasing choroidal thickness may potentially alter the disease course.
- Trial name
- NCT01830790
- Testing
- Sildenafil citrate
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Duke University
Duchenne Muscular Dystrophy, Becker Muscular Dystrophy
Revatio for Heart Disease in Duchenne Muscular Dystrophy and Becker Muscular Dystrophy
This study, supported by Charley's Fund, Inc., is being done to determine if the drug Revatio®(also known as Sildenafil), as compared to placebo (an inactive substance that looks like the study drug, but contains no medication)…
- Trial name
- REVERSE-DBMD (NCT01168908)
- Testing
- Sildenafil
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Obesity
The Effect Of NS-0200 and NS-0300 Versus Placebo on Weight In Obesity
This is a 24-week study to evaluate the effects of two fixed-dose combinations of leucine and sildenafil or two fixed-dose combinations of leucine, sildenafil and metformin compared to placebo.
- Trial name
- NCT03364335
- Testing
- Leu Sil 1.0mg, Leu Sil 4.0mg, Leu Met Sil 1.0mg
- Where
- 15 sites in United States
- Volunteers
- 267 people
- Sponsor
- NuSirt Biopharma
Heart Failure, Left Ventricular Dysfunction
Effects of Viagra on Heart Function in Patients With Heart Failure
Sildenafil (Viagra) is known to reduce pulmonary hypertension. Heart failure patients also have pulmonary hypertension and several recent reports have shown that sildenafil leads to an improvement in their exercise capacity.
- Trial name
- NCT00781508
- Testing
- sildenafil
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- MetroHealth Medical Center
Fatigue
The Effect of Sildenafil and Tadalafil on Skeletal Muscle and Perceptual Fatigue
This study is funded by the Moody Endowment. In this project, we will investigate the potential effect of skeletal muscle nitric oxide (NO) production on skeletal muscle anabolism, muscle strength, physical function, and body…
- Trial name
- NCT01661595
- Testing
- Sildenafil, tadalafil
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- The University of Texas Medical Branch, Galveston
Pulmonary Arterial Hypertension
Effects of Oral Sildenafil on Mortality in Adults With PAH
This is a blinded study in adult patients with PAH evaluating the relative effects of sildenafil on mortality when administered at the three doses (80 mg, 20 mg or 5 mg, all three times per day [TID]).
- Trial name
- AFFILIATE (NCT02060487)
- Testing
- sildenafil citrate
- Where
- 82 sites in United States, Australia and 21 more
- Volunteers
- 385 people
- Sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
NAFLD
The Effect Of NS-0200 Versus Placebo On Hepatic Fat Content In Patients With Non Alcoholic Fatty Liver Disease
The goal of this study is to determine if NS-0200 can reduce the amount of liver fat in patients diagnosed with non-alcoholic fatty liver disease (NAFLD). This study will compare two doses of NS-0200 to placebo in NAFLD patients.
- Trial name
- NCT02546609
- Testing
- Leu-Met-Sil 0.5, Leu-Met-Sil 1.0
- Where
- 13 sites in United States
- Volunteers
- 91 people
- Sponsor
- NuSirt Biopharma
Sickle Cell Disease, Priapism
Sildenafil for Treatment of Priapism in Men With Sickle Cell Anemia
This research is being done to evaluate if the phosphodiesterase type 5 (PDE5) inhibitor sildenafil has an effect on the frequency of recurrent priapism and the quality of life of males with sickle cell disease (SCD).
- Trial name
- NCT00940901
- Testing
- sildenafil
- Where
- United States
- Volunteers
- 13 people
- Sponsor
- Johns Hopkins University
Pulmonary Arterial Hypertension
Study of Incidence of Respiratory Tract AEs in Patients Treated With Tyvaso® Compared to Other FDA Approved PAH Therapies
A surveillance of respiratory tract related adverse events in patients treated with Tyvaso®(treprostinil) Inhalation Solution versus other FDA approved therapies
- Trial name
- Aspire (NCT01266265)
- Testing
- inhaled prostacyclin, prostacyclin, subcutaneous and intravenous prostacyclin
- Where
- 88 sites in United States
- Volunteers
- 1,333 people
- Sponsor
- United Therapeutics
Erectile Dysfunction, Sexual Dysfunction
Concomitant Use of PriLigy in Men Treated for Erectile Dysfunction
The purpose of this study is to evaluate the efficacy and safety of dapoxetine compared to placebo in men with premature ejaculation and erectile dysfunction who are currently being treated with a phosphodiesterase-5 inhibitor…
- Trial name
- COUPLE (NCT01063855)
- Testing
- Dapoxetine, PDE5I (phosphodiesterase-5 inhibitor)
- Where
- 69 sites in United States, Argentina and 11 more
- Volunteers
- 495 people
- Sponsor
- Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Erectile Dysfunction
Pharmacokinetics Of Sildenafil Orally Disintegrating Tablet Formulation Given With Or Without Food.
This study will evaluate if an orally disintegrating tablet of sildenafil will have similar pharmacokinetic properties when given with food and without food.
- Trial name
- NCT01254396
- Testing
- Sildenafil
- Where
- Singapore
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Pulmonary Arterial Hypertension, Pulmonary Hypertension
Sitaxsentan Efficacy And Safety Trial With A Randomized Prospective Assessment Of Adding Sildenafil (SR-PAAS)
This protocol is for subjects with pulmonary arterial hypertension and is the first of 3 studies forming the Sitaxsentan efficacy and safety trial with Randomized Prospective Assessment of Adding Sildenafil (SR-PAAS) program.
- Trial name
- NCT00795639
- Testing
- Sitaxsentan
- Where
- 85 sites in United States, Argentina and 22 more
- Volunteers
- 183 people
- Sponsor
- Pfizer
Hypoplastic Left Heart Syndrome, Tricuspid Atresia
Sildenafil After the Fontan Operation
In this study, the investigators will evaluate the effect of sildenafil on exercise tolerance in patients with a single cardiac ventricle who have undergone the Fontan operation.
- Trial name
- SAFO (NCT00507819)
- Testing
- Sildenafil
- Volunteers
- 28 people
- Sponsor
- Children's Hospital of Philadelphia
Hepatitis C
The Boceprevir and Sildenafil Pharmacokinetics Study
This is a healthy volunteer study looking at the interactions between two drugs: boceprevir and sildenafil. New drugs are being developed to treat people with the chronic viral infection hepatitis C.
- Trial name
- NCT01499498
- Testing
- Sildenafil and Boceprevir
- Where
- United Kingdom
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Thalassemia, Hypertension, Pulmonary
Sildenafil to Improve Exercise Capacity in People With Thalassemia and Pulmonary Hypertension
Thalassemia is an inherited blood disorder that can result in mild to severe anemia. Many people with thalassemia also have pulmonary hypertension, which is high blood pressure in the arteries in the lungs.
- Trial name
- NCT00872170
- Testing
- Sildenafil
- Where
- United States
- Volunteers
- 27 people
- Sponsor
- Carelon Research
PPHN, Persistent Pulmonary Hypertension of the Newborn
Study To Investigate Safety And Efficacy Of Sildenafil In The Newborns With Persistent Pulmonary Hypertension (PPHN)
Sildenafil is efficacious in newborns with persistent pulmonary hypertension and its use will reduce the need for inhaled nitric oxide.
- Conditions
- PPHN, Persistent Pulmonary Hypertension of the Newborn, Hypoxic Respiratory Failure
- Trial name
- NCT01069861
- Testing
- sildanefil
- Where
- United Kingdom
- Volunteers
- 4 people
- Sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Single Ventricle Heart Disease After Fontan Surgery
Study of Effects of Sildenafil on Patients With Fontan Heart Circulation
The study will investigate the cardiovascular effects of sildenafil on patients with Fontan circulation. Recent studies suggest that sildenafil may improve exercise in patients with Fontan circulation.
- Trial name
- NCT01815502
- Testing
- Cardiac catheterization
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Medical University of South Carolina
Heart Disease
Sildenafil in Single Ventricle Patients
Patients with single ventricle anatomy undergo staged surgical palliation. The result is an "in series" circulation with pulmonary blood flow and cardiac output directly related to pulmonary vascular resistance.
- Trial name
- NCT01169519
- Testing
- Sildenafil by injection
- Where
- United States
- Volunteers
- 21 people
- Sponsor
- Duke University
Fontan Circulation
The Effects of Sildenafil on Exercise Function and Capacity in Patients With Fontan Circulation
The study will test the hypothesis that a single dose of sildenafil can increase the exercise capacity of pediatric patients with a Fontan Circulation.
- Trial name
- NCT00964782
- Testing
- Sildenafil, Sildenafil 2
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Milton S. Hershey Medical Center
Anterior Ischemic Optic Neuropathy
PDE5 Inhibitor Use and Non-arteritic Anterior Ischemic Optic Neuropathy (NAION)
The primary objective of this study is to determine whether the use of PDE5 inhibitors (vardenafil, sildenafil, or tadalafil) increases the risk for the development of NAION.
- Trial name
- NCT00867815
- Testing
- Diagnostic procedures
- Where
- 13 sites in United States, Australia and 1 more
- Volunteers
- 10 people
- Sponsor
- Bayer