Phosphodiesterase 5 Inhibitors: all 685 studies that test it
Page 6 of 7. Open to participants first (38), then studies with results posted, then the rest; newest registration first within each.
- Endothelial Function in Patients With Sickle Cell Anemia Before and After SildenafilWithdrawnNCT00937144Phase 4
- A Pharmacokinetic Study of Avanfil in Healthy Young Male SubjectsCompletedNCT00914511Phase 1
- Can Hyperbaric Oxygen Improve Erectile Function Following Surgery for Prostate CancerStatus unknownNCT00906269Phase 4
- Therapeutic Confirmatory Study to Evaluate the Efficacy and Safety of AvanafilCompletedNCT00903981Phase 3
- Safety Study of Sildenafil in Treatment of Cerebral Aneurysm VasospasmWithdrawnNCT00871065Phase 2
- A Study to Compare the Blood Levels of Sildenafil Following Administration of an Experimental Tablet vs. the Conventional Oral Tablet in Healthy SubjectsCompletedNCT00866463Phase 1
- Sildenafil for Secondary Pulmonary Hypertension Due to Valvular DiseaseCompletedNCT00862043Phase 4
- Study of Low Dose Nesiritide With or Without Sildenafil in Congestive Heart Failure Patients With Renal DysfunctionTerminatedNCT00818701Phase 1
- Cardiovascular Safety Study of Lodenafil Carbonate in Patients With Coronaropathy During Physical EffortWithdrawnNCT00817830Phase 4
- Prevention and Treatment of Immersion Pulmonary EdemaCompletedNCT00815646Early Phase 1
- 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-369,0031CompletedNCT00814736Phase 1
- Does Sildenafil Increase Exercise Performance in Air Pollution?CompletedNCT00808912Not applicable
- Sildenafil IV Bolus StudyCompletedNCT00800592Phase 1
- Study to Compare the Blood Levels of Sildenafil Following Administration of an Experimental Tablet vs. the Conventional Oral Tablet in Healthy Subjects.CompletedNCT00795938Phase 1
- Evaluation of Sildenafil for the Treatment of Moderate Congestive Heart FailureWithdrawnNCT00793338Phase 4
- Sustainable Efficacy of Vardenafil OD Versus Vardenafil PRN in Erectile DysfunctionCompletedNCT00786253Phase 2
- Study Evaluating the Addition of Sildenafil to Bosentan Therapy in Pulmonary Arterial HypertensionWithdrawnNCT00780728Phase 3
- Reversibility by Sildenafil of Exercise-Induced Abnormal Right Ventricular Pressure Response in ASD and VSD-Operated PatientsStatus unknownNCT00772135Not applicable
- A Thorough EKG Safety Study of TA-1790 (Avanafil)CompletedNCT00769041Phase 1
- The Effect of CYP3A Genetic Polymorphism on the Pharmacokinetics of Phosphodiesterase type5 Inhibitors in Male SubjectsCompletedNCT00767598Phase 1
- Sulindac and Epirubicin in Treating Patients With Metastatic Malignant MelanomaCompletedNCT00755976Phase 2
- Combination Chemotherapy With Sildenafil Plus Carboplatin and Paclitaxel in Patients With Advanced Non-small Cell Lung CancerCompletedNCT00752115Phase 2/3
- An Open-Label, Extension Study Evaluating the Safety, Toleration, and Efficacy of Sildenafil in Women With Sexual Arousal DisorderCompletedNCT00746967Phase 2
- The Assessment of Right Ventricular Contractility in Response to SildenafilTerminatedNCT00742014Phase 3
- Sildenafil for Chronic Obstructive Pulmonary Disease (COPD) Associated Pulmonary HypertensionWithdrawnNCT00730067Phase 4
- A Study to Evaluate the Efficacy and Safety of Vardenafil in Men With Erectile Dysfunction Caused by Spinal Cord InjuryStatus unknownNCT00725790Phase 4
- The Efficacy and Safety of Vardenafil in the Treatment of Pulmonary Arterial HypertensionCompletedNCT00718952Phase 3
- Effect of Oral Sildenafil With Digital Therapeutic Iontophoresis of Sodium Nitroprussiate in Healthy VolunteersCompletedNCT00710099Not applicable
- Trial of IC351 in Female Scleroderma Patients With Raynaud's and Sexual DysfunctionCompletedNCT00707187Phase 2
- Study to Assess the Efficacy and Safety of SK3530 on Erectile Dysfunction in Patients With Diabetes MellitusCompletedNCT00705861Phase 3
- Long Acting Phosphodiesterase 5 Inhibitors as Add-on Therapy for Patients With Pulmonary Hypertension Treated With Prostanoids.Status unknownNCT00705588Phase 4
- Study Evaluation the Efficacy and Safety of Vardenafil in Subjects With Erectile Dysfunction for 10 WeeksCompletedNCT00682019Phase 3
- Evaluation of the Safety and Efficacy of Vardenafil in Subjects With Erectile DysfunctionCompletedNCT00681772Phase 4
- BAY38-9456 - Pivotal Trial for Diabetes PatientCompletedNCT00678704Phase 3
- Assessment of Vardenafil in Patients With Erectile Dysfunction in AsiaCompletedNCT00668135Phase 4
- Assessment of Efficacy of Vardenafil in Subjects With Erectile Dysfunction and Diabetes, Hypertension or HyperlipidemiaCompletedNCT00668109Phase 3
- A Randomised Study of Levitra to Treat Men With Erections Problems and Previously Untreated With Similar Therapy.CompletedNCT00668096Phase 4
- BAY38-9456 (Vardenafil HCL Tablet) in ED Treatment for China Registration.CompletedNCT00668057Phase 3
- Assess Efficacy of Vardenafil 10mg in Erectile Dysfunction Within Intake of 6 HoursCompletedNCT00668018Phase 3
- Evaluating the Efficacy and Safety of Vardenafil in Subjects With Erectile Dysfunction and HypertensionCompletedNCT00668005Phase 3
- Evaluating the Efficacy of Vardenafil in Subjects With Erectile Dysfunction (ED) Administered 12, 18 or 24 Hours Prior to IntercourseCompletedNCT00667979Phase 4
- Assess Efficacy in Subjects With Traumatic Spinal Cord InjuryCompletedNCT00667966Phase 4
- Vardenafil in TinnitusCompletedNCT00666809Phase 2
- A Study to Investigate the Time to Onset of Action of 10 mg and 20 mg of Vardenafil Compared to Placebo in Males With Erectile DysfunctionCompletedNCT00665496Phase 3
- Investigate the Responsiveness of the Erectile Quality Scale to Vardenafil Flexible Dose vs Placebo in Males With Erectile Dysfunction (ED)CompletedNCT00665340Phase 4
- BAY38-9456, 5/10/20mg, vs.Placebo in Erectile DysfunctionCompletedNCT00665054Phase 4
- Assessing Efficacy and Safety of Flexible Dosing With Vardenafil in Subjects With Erectile Dysfunction and HyperlipidemiaCompletedNCT00663845Phase 4
- Assessment of Duration of Erection With Vardenafil 10 mgCompletedNCT00663728Phase 4
- Levitra® - Real Life Safety and Efficacy of LevitraCompletedNCT00663598Phase 4
- Evaluating the Efficacy Vardenafil 10 mg vs Tadalafil 10 mg in in Subjects With Erectile Dysfunction (ED)CompletedNCT00663130Phase 4
- Evaluating of the Efficacy and Safety of Vardenafil in Subjects With Erectile DysfunctionCompletedNCT00662441Phase 4
- A Double-blind "Preferred" Vardenafil Dose Study of QoL and Functional Outcomes in Males With Erectile DysfunctionCompletedNCT00661700Phase 3
- Assessment of Efficacy of Vardenafil, Influence on Self-esteem and Self-confidence in Subjects With Erectile DysfunctionCompletedNCT00661596Phase 3
- Study Evaluating the Efficacy, Safety, and Reliability of VardenafilCompletedNCT00661297Phase 3
- Depression Related Improvement With Vardenafil for Erectile ResponseCompletedNCT00661219Phase 3
- To Investigate the Efficacy and Safety of Vardenafil in Men With Erectile Dysfunction.CompletedNCT00661115Phase 3
- Evaluation of Efficacy and Safety of Vardenafil in Patients With Erectile Dysfunction and Type 1 DiabetesCompletedNCT00660998Phase 4
- Study Evaluating the Efficacy and Safety of Flexible-dose Vardenafil in Subjects With Erectile DysfunctionCompletedNCT00658177Phase 3
- Assessment of Efficacy of Vardenafil in the Treatment of Subjects With Symptomatic Benign Prostatic HyperplasiaCompletedNCT00657839Phase 2
- Efficacy and Safety of Vardenafil in Men With Erectile DysfunctionCompletedNCT00657644Phase 3
- Study to Investigate the Efficacy and Safety of Vardenafil Flexible Dose Versus Placebo in Males With Erectile DysfunctionCompletedNCT00657033Phase 3
- Placebo-controlled Study Evaluating the Efficacy and Safety of Vardenafil in Subjects With Erectile DysfunctionCompletedNCT00656188Phase 2/3
- Assess the Effect of Daily Treatment of Vardenafil 20mg or Sildenafil 100mg and Placebo on Sperm FunctionCompletedNCT00655590Phase 4
- A Study to Assess the Efficacy and Safety of Vardenafil in the Treatment of Male Patients With Erectile DysfunctionCompletedNCT00654914Phase 3
- Evaluating the Efficacy and Safety of Vardenafil in Patients Erectile Dysfunction Solely Secondary to Spinal Cord InjuryCompletedNCT00654680Phase 3
- A Study Evaluating the Efficacy and Safety of Sildenafil in Men With Traumatic Spinal Cord Injury and Erectile DysfunctionCompletedNCT00654082Phase 4
- A Study Evaluating the Efficacy and Safety of Sildenafil in Patients With Erectile Dysfunction Receiving HemodialysisCompletedNCT00654017Phase 4
- BAY38-9456 - Supportive Trial for Spinal InjuryCompletedNCT00652262Phase 3
- A Study to Evaluate Self-esteem and Relationships in Males With Erectile DysfuntionCompletedNCT00648596Phase 4
- A Multicenter, Double-blind Study to Evaluate the Effect of Pretreatment With a Daily Dose of Sildenafil on the As-Needed Efficacy of Viagra in Men With Erectile Dysfunction and Type 2 DiabetesCompletedNCT00645268Phase 4
- A Study to Investigate the Effects on Blood Pressure and Pulse Rate of a Single 100mg Dose of Sildenafil in Patients With Benign Prostatic Hyperplasia Who Are Being Treated With DoxazosinCompletedNCT00645034Phase 2
- A Randomized, Open-Label, Crossover, Multicenter, Single Dose Comparator Study Evaluating Onset Of Penile Rigidity In Men With Erectile Dysfunction Who Are Treated With Sildenafil And TadalafilCompletedNCT00644956Phase 4
- A Multicenter, Randomized, Parallel Group, Double-Blind, Placebo Controlled, Flexible Dose Escalation Study To Evaluate Sexual And Relationship Satisfaction In The Female Partner Of Men With Erectile Dysfunction Treated With Sildenafil CitrateCompletedNCT00644631Phase 4
- A Study to Assess the Efficacy and Safety of 20, 40, and 80mg of Sildenafil Three Times a Day in the Treatment of Pulmonary Arterial HypertensionCompletedNCT00644605Phase 3
- Phase III Study to Assess the Efficacy and Safety of SK3530 in Patients With Erectile Dysfunction and HypertensionCompletedNCT00644007Phase 3
- Study to Investigate Effect of Sildenafil on Clitoral Engorgement as Measured by Magnetic Resonance Imaging (MRI) in Pre-menopausal Women With Female Sexual Arousal DisorderCompletedNCT00640458Phase 2
- Randomized, Controlled Trial of Regular Sildenafil Citrate in the Prevention of Altitude IllnessCompletedNCT00627965Phase 4
- Pulmonary Hypertension Secondary to Idiopathic Pulmonary Fibrosis And Treatment With SildenafilWithdrawnNCT00625079Phase 4
- Efficacy of Udenafil After Radical Resection for Sigmoid Colon and Rectal CancerCompletedNCT00607282Phase 2
- Sildenafil and Exercise Capacity in HypertensionCompletedNCT00599235Not applicable
- Therapy of Pulmonary Arterial Hypertension (PAH) - Treatment With Sildenafil in Eisenmenger PatientsTerminatedNCT00586794Phase 3
- Study to Determine Safety and Effectiveness of Tadalafil on Prostate Related Sex Organ/Urinary Tract ProblemsCompletedNCT00547625Phase 2
- Determine If the Stress That Comes With Not Developing an Erection Affects Tadalafil EffectsCompletedNCT00547599Phase 4
- Determine Safety and Effectiveness of Tadalafil in Asian Men When Taken as Needed for Getting and Keeping an ErectionCompletedNCT00547573Phase 3
- To Determine How Different Doses of Tadalafil Work on Getting and Keeping an Erection 26 or 36 Hours After TakingCompletedNCT00547508Phase 3
- Study the Safety and Effectiveness of Tadalafil in Men With Problems Getting or Maintaining an Erection When Taken Prior to Desiring an ErectionCompletedNCT00547495Phase 3
- To Determine Effect and Safety of Tadalafil Taken by Men of Different Races and With Different Diseases When Needed for ErectionsCompletedNCT00547417Phase 3
- Study to Determine a Preference Between Sildenafil or Tadalafil Treatment for Problems Getting an ErectionCompletedNCT00547352Phase 4
- Studying the Preference of Tadalafil to Sildenafil in Men With Problems Getting an Erection Across NationsCompletedNCT00547287Phase 3
- Study the Safety and Effectiveness of Tadalafil in Men With Diabetes Who Have Problems Getting and Keeping an ErectionCompletedNCT00547183Phase 3
- Study For Which Treatment, Tadalafil or Sildenafil, is Preferred For Problems Getting or Maintaining an ErectionCompletedNCT00547092Phase 4
- Tadalafil for Treatment of Priapism in Men With Sickle Cell AnemiaWithdrawnNCT00538564Phase 2
- Acute Effects of Sildenafil on Endothelial Function in People With DiabetesCompletedNCT00527995Phase 3
- Effect of Vardenafil on Blood Pressure in Patients With Erectile Dysfunction Who Received Concomitant Doxazosin GITSCompletedNCT00517179Not applicable
- Effect of Nightly Versus Prn Sildenafil on Early Return of Erectile Function Following Laparoscopic Radical ProstatectomyCompletedNCT00511498Not applicable
- Effect of Tadalafil in Chronic Obstructive Lung Disease Patients Suffering From Secondary Pulmonary HypertensionWithdrawnNCT00506701Not applicable
- Safety and Clinical Effectiveness of 2 Lower Dose Combined PDE5i's vs. Single Maximal Dose PDE5iStatus unknownNCT00498680Phase 4
- Study to Compare the Tolerability and Efficacy of Once Daily Vardenafil vs Vardenafil PRN vs Placebo in Men Immediately After Nerve-sparing Prostatectomy for Improving EDCompletedNCT00492635Phase 3
- Sildenafil Effects on Pulmonary Haemodynamics and Gas Exchange in Chronic Obstructive Pulmonary Disease (COPD)CompletedNCT00491803Phase 4
- Phase I Study to Investigate the Drug Interaction After Oral Administration of Tamsulosin and SK3530CompletedNCT00489606Phase 1