| BAY63-2521:Long-term Extension Study in Patients With Pulmonary Arterial Hypertension (NCT00863681) | Bayer | 2009-03-12 |
| Sildenafil to Improve Exercise Capacity in People With Thalassemia and Pulmonary Hypertension (NCT00872170) | Carelon Research | 2009-03-01 |
| Milrinone Inhaled in Cardiac Surgery (NCT00819377) | Andre Denault | 2009-02-01 |
| Safety and Efficacy of Bosentan in Patients With Diastolic Heart Failure and Secondary Pulmonary Hypertension (NCT00820352) | University Teaching Hospital Hall in Tirol | 2009-01-01 |
| Sildenafil IV Bolus Study (NCT00800592) | Pfizer's Upjohn has merged with Mylan to form Viatris Inc. | 2008-10-01 |
| Interaction Study in Patients With Pulmonary Hypertension and Stable Treatment of Sildenafil 20 mg TID (NCT00680654) | Bayer | 2008-10-01 |
| Insulin Resistance in Pulmonary Arterial Hypertension (NCT00825266) | Stanford University | 2008-09-01 |
| Impact of Multiple Doses of BAY63-2521 on Safety, Tolerability, Pharmacokinetics and Pharmacodynamics in Patients With Interstitial Lung Disease (ILD) Associated Pulmonary Hypertension (PH) (NCT00694850) | Bayer | 2008-08-02 |
| Single Dose Study in Patients With Chronic Obstructive Pulmonary Disease (COPD) Associated Pulmonary Hypertension. (NCT00640315) | Bayer | 2008-08-01 |
| Study of Dehydroepiandrosterone (DHEA) in Respiratory Pulmonary Hypertension in Adults (DHEA-HTAP) (NCT01273259) | University Hospital, Bordeaux | 2008-05-06 |
| Rapid Switch From Flolan to Remodulin in the Outpatient Clinic (NCT00643604) | United Therapeutics | 2008-03-01 |
| A Study to Evaluate GSK1325760A - a Long-Term Extension Study (NCT00554619) | GlaxoSmithKline | 2008-02-01 |
| Evaluate the Efficacy, Safety and Pharmacokinetics of GSK1325760A in the Treatment of Pulmonary Arterial Hypertension (NCT00540436) | GlaxoSmithKline | 2007-08-01 |
| Sildenafil Trial of Exercise Performance in Idiopathic Pulmonary Fibrosis (NCT00517933) | Duke University | 2007-08-01 |
| Transitioning To IV Remodulin From Ventavis in Patients With PAH: Safety, Efficacy and Treatment Satisfaction (NCT00458042) | United Therapeutics | 2007-03-01 |
| Atorvastatin in Pulmonary Hypertension (NCT00615823) | Chinese Academy of Medical Sciences, Fuwai Hospital | 2007-02-01 |
| An Open Multiple Dose Titration Study In Patients With Pulmonary Hypertension (NCT00454558) | Bayer | 2007-01-01 |
| Study of Dehydroepiandrosterone (DHEA) in Respiratory Pulmonary Hypertension in Adults (NCT00581087) | University Hospital, Bordeaux | 2007-01-01 |
| A Study of Aspirin and Simvastatin in Pulmonary Arterial Hypertension (NCT00384865) | University of Pennsylvania | 2006-09-01 |
| Sildenafil Study to Treat Idiopathic Pulmonary Fibrosis (NCT00359736) | VA Office of Research and Development | 2006-07-01 |
| Pulmonary Artery Remodelling With Bosentan (NCT00595049) | Actelion | 2006-05-31 |
| Intravenous L-Citrulline to Treat Children Undergoing Heart Bypass Surgery (NCT00335244) | Asklepion Pharmaceuticals, LLC | 2006-05-01 |
| Pulmonary Hypertension: Assessment of Cell Therapy (NCT00469027) | Northern Therapeutics | 2006-05-01 |
| Chronic Sildenafil for Severe Diaphragmatic Hernia (NCT00133679) | University of California, San Francisco | 2006-02-01 |
| Study the Safety and Effectiveness of Tadalafil on High Blood Pressure in the Blood Vessel Going From the Heart to the Lungs (NCT00549302) | Eli Lilly and Company | 2005-12-01 |
| Spironolactone Combined With Captopril and Carvedilol for the Treatment of Pulmonary Arterial Hypertension (NCT00240656) | Hebei Medical University | 2005-10-01 |
| Sildenafil to Increase Exercise Capacity in Individuals With Idiopathic Pulmonary Fibrosis and Pulmonary Hypertension (NCT00352482) | National Heart, Lung, and Blood Institute (NHLBI) | 2004-11-01 |
| Genetic and Environmental Characteristics of Primary Pulmonary Hypertension (NCT00091546) | Vanderbilt University | 2003-08-01 |
| The Effect of Tracleer® on Male Fertility (NCT00082186) | Actelion | 2003-07-01 |
| 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 Hypertension (NCT00644605) | Pfizer's Upjohn has merged with Mylan to form Viatris Inc. | 2002-10-01 |
| A Study of Aspirin and Clopidogrel in Patients With Idiopathic Pulmonary Arterial Hypertension (NCT00105209) | Kawut, Steven, MD | 2002-04-01 |
| Inhaled Nitric Oxide for Preterm Infants With Severe Respiratory Failure (NCT00016523) | NICHD Neonatal Research Network | 2001-01-01 |
| Safety Follow-up Study of Inhaled Iloprost in Patients With Pulmonary Hypertension (NCT00185315) | Bayer | 2000-02-01 |
| Safety of Terbogrel in Patients With Primary Pulmonary Hypertension (NCT02223494) | Boehringer Ingelheim | 1998-10-01 |
| Early Inhaled Nitric Oxide for Respiratory Failure in Newborns (NCT00005773) | NICHD Neonatal Research Network | 1998-08-01 |
| Aerosolized Randomized Iloprost Study II (AIR - II) Long-Term Safety, Tolerability, and Clinical Effects of Iloprost Inhalation in Patients With Primary or Secondary Pulmonary Hypertension (NCT00414687) | Bayer | 1998-07-01 |
| Safety and Efficacy of Terbogrel in Patients With Primary Pulmonary Hypertension (NCT02223481) | Boehringer Ingelheim | 1998-05-01 |
| Inhaled Nitric Oxide Study for Respiratory Failure in Newborns (NCT00005776) | NICHD Neonatal Research Network | 1995-10-01 |
| Pulmonary Hypertension--Mechanisms and Family Registry (NCT00005357) | Vanderbilt University | 1994-04-01 |
| Phase IV Study of Chronic Infusional Epoprostenol for Severe Primary Pulmonary Hypertension (NCT00004754) | National Center for Research Resources (NCRR) | 1993-08-01 |
| Study of the Effects of Iron on Lung Blood Pressure at High Altitude (NCT00960921) | University of Oxford | |
| Study Evaluating the Addition of Sildenafil to Bosentan Therapy in Pulmonary Arterial Hypertension (NCT00780728) | University Health Network, Toronto | |
| Riociguat in Patients With Chronic Thromboembolic Pulmonary Hypertension (CTEPH) (NCT01784562) | Bayer | |