Search clinical trials for: sildenafil matching placebo

Total 54974 results

Boehringer Ingelheim

Completed

A Study to Test How Well Different Doses of BI 1815368 Are Tolerated by Healthy Men

Healthy

Belgium
Novartis Pharmaceuticals

Terminated

A Safety, Tolerability and Efficacy Study in Chronic Obstructive Pulmonary Disease (COPD) Patients With QBM076.

COPD

Germany, United Kingdom, United States, Romania
CuraSen Therapeutics, Inc.

Completed

A Study of CST-2032 and CST-107 in Subjects With Mild Cognitive Impairment or Mild Dementia Due to Parkinson's or Alzheimer's Disease

Dementia | Mild Cognitive Impairment

United States, New Zealand
Regeneron Pharmaceuticals

Completed

Safety and Tolerability of Regeneron Anti-SARS-CoV-2 Monoclonal Antibody/Ies in Adult Healthy Volunteers as Related to COVID-19

Healthy

Belgium
Kallyope Inc.

Completed

A Study to Evaluate the Safety, Tolerability, and Weight Loss Efficacy of K-757 Alone and in Combination With K-833

Obesity

United States
National Jewish Health
Augusta University; Cystic Fibrosis Foundation

Recruiting

Sildenafil Exercise: Role of PDE5 Inhibition

Cystic Fibrosis

United States
Regeneron Pharmaceuticals

Active, not recruiting

A Trial to Learn if Single Ascending Intravenous (IV) Doses of REGN7508 Are Safe and Well Tolerated, and How it Works in the Body of Healthy Adult Participants

Healthy Volunteer

United Kingdom
University Hospital, Angers

Withdrawn

Efficacy of Sildenafil on the Morbi-mortality of Peripheral Arterial Diseased Patients With Intermittent Claudication (VALSTAR)

Peripheral Arterial Occlusive Disease
Biogen

Recruiting

A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of BIIB115

Healthy Volunteer | Muscular Atrophy, Spinal

Korea, Republic of, Germany, Belgium, Netherlands, France, Italy, Poland, Canada, United Kingdom, Israel
Sun Pharma Advanced Research Company Limited

Completed

Study to Determine Safety, Tolerability and Pharmacokinetics, of SCO-120 in Healthy Male and Post-menopausal Female Subjects

Healthy Volunteer Study

United States, Canada
Jiangsu HengRui Medicine Co., Ltd.

Completed

Multicentre, Randomised Phase III Study of the Efficacy and Safety of Hetrombopag Olamine in Idiopathic Thrombocytopenic Purpura (ITP) Patient

Idiopathic Thrombocytopenic Purpura

China
Regeneron Pharmaceuticals
Sanofi

Terminated

Efficacy, Safety, and Pharmacokinetic Profiles of REGN3500 Administered to Adult Patients With Moderate-to-Severe Atopic Dermatitis

Atopic Dermatitis

United States, Hungary, Korea, Republic of, Germany, Japan, Poland, Australia, Canada, Czechia, Spain, United Kingdom
Bayer

Terminated

Assess Safety and Efficacy of Vilaprisan in Subjects With Endometriosis (VILLENDO)

Endometriosis

United States, Austria, Japan, Poland, Finland, Canada, Italy, Czechia
Cerevel Therapeutics, LLC

Completed

A Multiple Ascending Dose Trial of CVL-231 in Subjects With Schizophrenia

Schizophrenia

United States
Naurex, Inc, an affiliate of Allergan plc

Completed

A Study of Rapastinel as Adjunctive Therapy in the Prevention of Relapse in Patients With Major Depressive Disorder

Depressive Disorder, Major

United States
Regeneron Pharmaceuticals

Withdrawn

Safety and Efficacy of REGN2477+REGN1033 in Patients With Sporadic Inclusion Body Myositis

Sporadic Inclusion Body Myositis
Cyclerion Therapeutics

Completed

Trial of IW-1701 (A Stimulator of Soluble Guanylate Cyclase (sGC)) in Healthy Volunteers

Healthy

United States
Allergan

Completed

Efficacy, Safety, and Tolerability Study of Oral Ubrogepant in the Acute Treatment of Migraine (ACHIEVE I)

Migraine, With or Without Aura

United States
AbbVie

Completed

Safety and Pharmacodynamic Study of ABT-436 in Major Depressive Disorder

Major Depressive Disorder
Amgen

Completed

Safety Study of AMG 557 in Subjects With Lupus Arthritis

Lupus Arthritis, Systemic Lupus Erythematosus

United States, Taiwan, Germany, Denmark, Australia, United Kingdom, Malaysia, France
Ironwood Pharmaceuticals, Inc.

Completed

Trial of IW-9179 in Patients With Diabetic Gastroparesis (DGP)

Diabetic Gastroparesis

United States
Eisai Co., Ltd.

Completed

Single/ Multiple-Dose Study of E6007 in Healthy Japanese Male Subjects

Healthy Volunteers

Japan
Eisai Co., Ltd.

Completed

A Study to Assess Safety, Tolerability, and Pharmacokinetics of E2307 in Healthy Young and Elderly Japanese Subjects

Healthy Subjects

Japan
Idorsia Pharmaceuticals Ltd.

Completed

Clinical Study to Investigate the Biological Activity, Safety, Tolerability, and Pharmacokinetics of ACT-334441 in Subjects With Systemic Lupus Erythematosus

Systemic Lupus Erythematosus

United States, Belarus, Bulgaria, Georgia, Russian Federation, Ukraine
Sucampo Pharma Americas, LLC
Sucampo Pharmaceuticals, Inc.

Terminated

Efficacy and Safety of Cobiprostone in Patients With Portal Hypertension

Portal Hypertension

United States
Idorsia Pharmaceuticals Ltd.

Completed

Clinical Study to Explore the Efficacy of ACT-129968 in Patients With Partly Controlled Asthma (CONTROL)

Asthma

United States, Australia, Bulgaria, Germany, Hungary, Israel, Poland, Russian Federation, Serbia, Singapore, South Africa, Sweden, Ukraine
Tsumura USA
Syneos Health

Terminated

A Safety and Efficacy Study of Daikenchuto (TU-100) to Treat Crohn's Disease

Crohn's Disease

United States
Neurocentria, Inc.

Recruiting

Study to Evaluate NRCT-101SR in Pediatric Subjects With ADHD (ADHD)

Attention-Deficit/Hyperactivity Disorder (ADHD)

United States
Pfizer

Recruiting

Randomized Study in Children and Adolescents With Migraine: Acute Treatment

Pediatric Migraine

United States, Spain, Canada, China, Poland, United Kingdom, Mexico, Japan, Sweden
Sun Pharmaceutical Industries Limited

Recruiting

Efficacy and Safety of Tildrakizumab Compared to Placebo in Subjects With Active Psoriatic Arthritis I (INSPIRE 1)

Active Psoriatic Arthritis

United States, Australia, Czechia, Estonia, Korea, Republic of, Poland, Slovakia, Spain, Taiwan, Germany, Italy, India, Canada
Tisento Therapeutics

Terminated

IW-6463 Safety Study in Healthy Elderly Subjects

Other

Netherlands
Tisento Therapeutics

Completed

A Study of IW-6463 in Healthy Volunteers

Other

Netherlands
Biogen

Terminated

A Pharmacokinetics and Safety Study of BIIB132 in Adults With Spinocerebellar Ataxia 3

Spinocerebellar Ataxia Type 3

United States, Netherlands, Israel, Portugal, United Kingdom, Germany
University of Virginia
Northwestern University

Completed

A Trial of Alirocumab and Plaque Regression in Peripheral Arterial Disease

Peripheral Arterial Disease

United States
Bayer
Population Health Research Institute

Completed

Study to Gather Information About Proper Dosing and Safety of the Oral FXIa Inhibitor BAY 2433334 in Patients Following a Recent Non Cardioembolic Ischemic Stroke Which Occurs When a Blood Clot Has Formed Somewhere in the Human Body (But Not in the Heart) Travelled to the Brain. (PACIFIC-STROKE)

Acute Non-cardioembolic Ischemic Stroke

Spain, Japan, Australia, Czechia, Sweden, United Kingdom, Netherlands, Belgium, Russian Federation, Hungary, Slovakia, China, Germany, Switzerland, France, Poland, Denmark, United States, Austria, Bulgaria, Finland, Italy, Portugal
Boehringer Ingelheim

Completed

A Study in Healthy Men to Test How Well Different Doses of BI 1819479 Are Tolerated

Healthy

Japan
SIMR (Australia) Biotech Pty Ltd.

Completed

The Safety, Tolerability, and Pharmacokinetics (PK) of SR750 in Healthy Volunteers

Healthy Volunteers

Australia
Novartis Pharmaceuticals

Terminated

Efficacy & Safety in Moderately Active Refractory Ulcerative Colitis Patients

Ulcerative Colitis

Belgium, Hungary, Switzerland, Germany, Sweden, United Kingdom
Allergan

Completed

Efficacy, Safety, and Tolerability of Oral Ubrogepant in the Acute Treatment of Migraine (ACHIEVE II)

Migraine, With or Without Aura

United States
Eisai Inc.

Completed

Study to Assess the Safety, Tolerability, Pharmacokinetics of E2027 in Healthy Adult and Elderly Subjects, and the Pharmacodynamics in Healthy Adult Subjects

Healthy Participants

United States
Heptares Therapeutics Limited
P1vital Limited

Completed

Phase 1 Study Investigating Effects of HTL0009936 on Cognition and BOLD fMRI Signals in Healthy Elderly Subjects

Alzheimer's Disease

United Kingdom
Kubota Vision Inc.
Otsuka Pharmaceutical Co., Ltd.

Completed

Study of the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of ACU-4429 in Subjects With Geographic Atrophy

Geographic Atrophy | Dry Age-related Macular Degeneration

United States
Addex Pharma S.A.

Terminated

ADX10059 Migraine Prevention Study

Migraine

Germany, Austria, Belgium, France, United Kingdom
Cognition Therapeutics

Completed

Study to Evaluate the Effect of CT1812 Treatment on Amyloid Beta Oligomer Displacement Into CSF in Subjects With Mild to Moderate Alzheimer's Disease

Alzheimer Disease

United States
Cognition Therapeutics

Completed

Clinical Trial of CT1812 in Mild to Moderate Alzheimer's Disease

Alzheimer's Disease

Australia
ViiV Healthcare

Active, not recruiting

Proof of Concept Treatment Study of Orally Administered VH4004280 or VH4011499 in HIV-1 Infected Adults (CINNAMON)

HIV Infections

Germany, France, Spain, United States, Canada, Italy, Argentina, Mexico, United Kingdom
Nathura S.p.A
Evidilya S.r.l.

Recruiting

Performance and Safety of Class IIb MD Celegyn® in VVA

Vulvovaginal Atrophy

Italy
Sun Pharmaceutical Industries Limited

Active, not recruiting

Efficacy and Safety of Tildrakizumab Compared to Placebo in Anti-TNF naïve Subjects With Active Psoriatic Arthritis II (INSPIRE 2)

Active Psoriatic Arthritis

United States, Australia, Czechia, Germany, India, Japan, Korea, Republic of, Poland, Spain
Equilibre Biopharmaceuticals B.V.

Terminated

Study of EQU-001 for Uncontrolled Focal Onset Seizures

Focal Onset Seizures

United States, Israel
Merit E. Cudkowicz, MD
Clene Nanomedicine

Completed

HEALEY ALS Platform Trial - Regimen C CNM-Au8

Amyotrophic Lateral Sclerosis

United States

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