Clinical trials: Sildenafil
Multiple Sclerosis
The Effect of Sildenafil Citrate (Viagra® (Registered Trademark)) on Brain Blood Flow in Multiple Sclerosis Patients
This study will determine whether sildenafil citrate, commonly known as Viagra, can cause increased blood flow to the brain in a wide range of multiple sclerosis (MS) patients, including women.
- Trial name
- NCT00094068
- Where
- United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
High Risk Pregnancy
Sildenafil Citrate Added to Low Molecular Weight Heparin and Low Dose Aspirin in High-risk Pregnancy
Anticoagulant therapy is indicated during pregnancy for the prevention and treatment of venous thromboembolism, systemic embolism in patients with mechanical heart valves and, in combination with aspirin, for the prevention of…
- Trial name
- NCT04110444
- Testing
- Sildenafil
- Where
- Egypt
- Volunteers
- healthy volunteers welcome
- Sponsor
- Fayoum University Hospital
Erectile Dysfunctions, Healthy Volunteer
A Study to Assess the Safety, Tolerability and Pharmacokinetics of Viaca (Sildenafil + Cabergoline) Compared With Sildenafil and Cabergoline
This is a Phase 1, open-label, single-ascending-dose study evaluating the safety, tolerability, and pharmacokinetics (PK) of Viaca - a fixed-dose oral combination of sildenafil (a PDE5 inhibitor) and cabergoline (a dopamine D2…
- Trial name
- NCT07732387
- Testing
- Viaca, Sildenafil 50 mg, Cabergoline 0.5 MG
- Where
- Australia
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Yanping Kong
Healthy
Drug-Drug Interaction of Clomipramine HCl and Sildenafil Citrate in Healthy Males
The purpose of this study is to evaluate the safety and pharmacokinetics/pharmacodynamics of co-administration of Clomipramine HCl 15mg and Sildenafil citrate 100mg compared to the effects after single oral administration in…
- Trial name
- NCT02028598
- Testing
- Treatment 1, Treatment 2, Treatment 3
- Where
- South Korea
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- CTC Bio, Inc.
Pulmonary Arterial Hypertension
A Pharmacokinetic Drug-Drug Interaction (DDI) Study Between Sitaxsentan And Sildenafil, And Between Sitaxsentan And Tadalafil After Multiple Doses
Sitaxsentan has a low drug-drug interaction potential and it did not have a clinically relevant effect on pharmacokinetics of sildenafil (a CYP3A sensitive substrate and PDE5 inhibitor).
- Trial name
- NCT01244620
- Testing
- sitaxentan, tadalafil, sitaxsentan
- Where
- Singapore
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Pfizer
Erectile Dysfunction
Pharmacoscintigraphic Study to Evaluate Two Sildenafil Products
The study will assess a new biphasic release sildenafil formulation (N4S001), developed by N4 Pharma. The N4S001 tablet contains a total of 100 mg sildenafil.
- Trial name
- NCT03510338
- Testing
- Sublingual sildenafil, Oral sildenafil
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- N4 Pharma UK Ltd.
Healthy Participants
A Study Investigating the Safety, Tolerability, Drug Levels and Drug Effect of BMS-986278 in Healthy Adult Participants (Part 1) and Japanese Participants (Part 2)
The purpose of this study is to evaluate the safety, tolerability, drug levels and drug effect of BMS-986278 in healthy adult participants and Japanese participants.
- Trial name
- NCT05684289
- Testing
- BMS-986278, Sildenafil
- Where
- 2 sites in United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Bristol-Myers Squibb
Prostatic Hyperplasia, Urinary Bladder, Overactive
A Randomized, Double-Blinded, Placebo-Controlled, Two-Way Crossover Study to Investigate the Safety and Toleration of Single Dose Sildenafil in Subjects Receiving Chronic UK-369,0031
To investigate the safety and overall tolerability of co-administration two PDE5 inhibitors UK369,003 and sildenafil
- Conditions
- Prostatic Hyperplasia, Urinary Bladder, Overactive, Erectile Dysfunction
- Trial name
- NCT00814736
- Testing
- UK369,003, sildenafil
- Where
- Singapore
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Pfizer
Erectile Dysfunction, Smoking
A Comparative Pharmacokinetic and Pharmacodynamic Study of Sildenafil in Adult Smokers and Non Smokers
Smokers are at higher risk of developing Erectile dysfunction (ED) independent of age and comorbidities. Sildenafil is a cytochrome p3A4 (CYP3A4) substrate used for enhancing the erectile function in males.
- Conditions
- Erectile Dysfunction, Smoking, Pharmacokinetics, Pharmacodynamics
- Trial name
- NCT04100759
- Testing
- Sildenafil 50 mg Oral Tablet
- Where
- Egypt
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Safety
FDA Phase IV - Commitment - Retinal Function Study
Vardenafil (Levitra) and Sildenafil (Viagra) are drugs that are marketed for use in patients with erectile dysfunction. The purpose of this study is to find out if there are any changes in the eye after taking at least 15 doses…
- Trial name
- NCT00461565
- Testing
- Sildenafil, Vardenafil (Levitra, BAY38-9456)
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Bayer
Central Venous Pressure, Hepatectomy
Preoperative Sildenafil Administration for Hepatectomy
Hepatectomy is an important treatment for liver diseases, and bleeding is one of the most common complications during dissection of the liver parenchyma.
- Conditions
- Central Venous Pressure, Hepatectomy, Hemodynamics Instability, Sildenafil
- Trial name
- NCT06237751
- Testing
- Sildenafil 100 MG
- Where
- China
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- First People's Hospital of Chenzhou
Arterial Hypertension, Erectile Dysfunction
Effects of Sildenafil on Penile Vascular Function in Hypertensive Men With Erectile Dysfunction
The study will evaluate the effects of a chronic 30-day treatment with sildenafil citrate on penile and systemic microvascular function as well as in blood pressure.
- Trial name
- NCT02620995
- Testing
- sildenafil citrate, comparator group
- Where
- Brazil
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- National Institute of Cardiology, Laranjeiras, Brazil
Healthy
The Impact of Sildenafil on the Pulmonary Circulation in Healthy Trained and Untrained Humans
There is emerging evidence suggesting that the pulmonary vasculature and right heart may play a role in the limitation of exercise capacity in healthy individuals.
- Trial name
- NCT04985929
- Testing
- Sildenafil 50 mg
- Where
- Canada
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Oligohydramnios
Comparison Between Treatments of Oligohydramnios
Based on previous studies, Both sildenafil and L-arginine helped to improve idiopathic oligohydramnios. In this study, Level of improvment of oligohydramnios will be compared.
- Trial name
- NCT07135037
- Testing
- Sildenafil 25 MG, L-Arginine, 1000 Mg Oral Tablet
- Where
- 2 sites in Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Kafrelsheikh University
Premature Ejaculation
Combined On-demand Sildenafil Citrate and Tramadol Hydrochloride for Treatment of Premature Ejaculation
Premature Ejaculation (PE) is a common sexual dysfunction that has a negative impact on both sex partners. Several lines of treatment have been proposed for the treatment of PE i.e.
- Trial name
- NCT05183334
- Testing
- Sildenafil 50 mg, Tramadol Hydrochloride 100 MG
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Assiut University
IUGR
Viagra for the Treatment of IUGR
It has been suggested that Viagra (or other drugs that inhibit PDE-5, the enzyme that normally inhibits blood vessels' ability to expand) may have beneficial effects in hypertensive pregnancy and, possibly, preeclampsia.The…
- Trial name
- NCT00347867
- Testing
- Viagra administration in IUGR/PET pregnancies
- Where
- Israel
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Rambam Health Care Campus
Traumatic Brain Injury, Post-concussive Syndrome
Sildenafil for Cerebrovascular Dysfunction in Chronic Traumatic Brain Injury.
The purpose of this study is to determine whether sildenafil (Viagra®) is effective in improving cerebral blood flow and cerebrovascular reactivity inpatients who have persistent symptoms at least 6 months after a traumatic brain…
- Trial name
- NCT01762475
- Testing
- Sildenafil
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- Uniformed Services University of the Health Sciences
Erectile Dysfunction
Study to Compare the Effects of Viagra® Vs Hezkue® in Healthy Fasted Male Participants.
The objective of this phase 1, open-label, single-center, two-way crossover trial is to evaluate the pharmacokinetics (PK), safety, and tolerability of 100 mg ASP-001 oral liquid suspension versus 100 mg Viagra (sildenafil…
- Trial name
- NCT06782659
- Testing
- ASP-001, Viagra
- Where
- 2 sites in United States
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Aspargo Labs, Inc
Cystic Fibrosis
Blood Flow and Vascular Function in Cystic Fibrosis
Cystic fibrosis (CF) has many health consequences. A reduction in the ability to perform exercise in patients with CF is related to greater death rates, steeper decline in lung function, and more frequent lung infections.
- Trial name
- CF-FLOW (NCT02057458)
- Testing
- Sildenafil (Acute-1 hour), Sildenafil (Subchronic-4 weeks)
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Augusta University
Erectile Dysfunction
Assess the Effect of Daily Treatment of Vardenafil 20mg or Sildenafil 100mg and Placebo on Sperm Function
Assess the effect of daily treatment of vardenafil 20mg or sildenafil 100mg and placebo on sperm function
- Trial name
- NCT00655590
- Testing
- Levitra (Vardenafil, BAY38-9456), Sildenafil
- Where
- 18 sites in United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Bayer