A Long Term Extension Study Evaluating Safety Of Sildenafil Citrate When Used To Treat Pulmonary Arterial Hypertension (PAH) In Children
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Pharmacokinetics, Safety and Efficacy of BIA 5-1058 in PAH
Trial to Evaluate Parenteral Treprostinil and Riociguat on Right Ventriculo-vascular Coupling and Morphology in Those With Advanced PAH
Clinical Trial to Evaluate the Long-term Safety of Udenafil in Patient With PAH
Effects of RT234 on Exercise Parameters Accessed by CPET in Subjects With PAH
Safety of Transition From Selexipag to Remodulin® Then Oral Treprostinil in Symptomatic Adult PAH
Olaparib for PAH: a Pilot Study
Rehabilitation for Patients With Pulmonary Arterial Hypertension
Biomarkers in the Diagnosis and Assessment of Pulmonary Arterial Hypertension (PAH)
Clinical Investigation Into Inhaled Treprostinil Sodium in Patients With Severe Pulmonary Arterial Hypertension (PAH)
Olaparib for PAH: a Multicenter Clinical Trial
Phase 2 Study of Ambrisentan for Liver Function Test Rescue in Pulmonary Arterial Hypertension
Study Of Right Ventricular Performance In PAH Patients Treated With Rapid Dose Treprostinil (Remodulin)
Exercise Capacity and Quality of Life in Patients With PPH Receiving Short Term Oral L-Citrulline Malate
BREATHE 5-OL: Tracleer (Bosentan) in Patients With Pulmonary Arterial Hypertension Related to Eisenmenger Physiology
Genes Associated With Development of Pulmonary Arterial Hypertension in Patients With Congenital Shunt Lesions
Tamoxifen Therapy to Treat Pulmonary Arterial Hypertension
Pulmonary Arterial Hypertension Improvement With Nutrition and Exercise (PHINE)
ALlogeneic Cardiosphere-derived Stem Cells (CDCs) for Pulmonary Hypertension therApy
Crossover Study From Macitentan or Bosentan Over to Ambrisentan
Evaluation of Metformin Activity in Addition to Conventional Treatment of Grade II or III Pulmonary Arterial Hypertension (PAH)
Therapy of Pulmonary Arterial Hypertension (PAH) – Treatment With Sildenafil in Eisenmenger Patients
Clinical Study of Macitentan in Patients With PAH to Psychometrically Validate PAH-SYMPACT Instrument
Goal Oriented Strategy to Preserve Ejection Fraction Trial
Safety, Pharmacokinetics and Efficacy Study of QCC374 in PAH Patients
Combined Use of Radiofrequency-ablation and Balloon-septostomy in the Creation of a Stable Inter-atrial Communication
A Study to Assess Whether Macitentan Delays Disease Progression in Children With Pulmonary Arterial Hypertension (PAH)
Study of ACT-293987 (NS-304) in Pulmonary Arterial Hypertension (PAH)
To Assess The Efficacy and Safety Of Oral Sildenafil in the Treatment of Pulmonary Arterial Hypertension.
Remodulin® to Oral Treprostinil Transition
Dose-response Study of the Safety and Efficacy of Beraprost Sodium Modified Release (BPS-MR) in Patients With Pulmonary Arterial Hypertension (PAH)
Natural History Study of Biomarkers in Pulmonary Arterial Hypertension
Combination Therapy in Pulmonary Arterial Hypertension
Correlation of LONGterm Wrist ACTigraphy Recorded Physical Performance & 6-minute Walk Distance in Patients With Pulmonary Arterial Hypertension
Study of Cicletanine for Pulmonary Arterial Hypertension (PAH)
An Open-Label Extension of BPS-MR-PAH-201 in Pulmonary Arterial Hypertension (PAH) Patients
Safety and Efficacy of APD811 in Pulmonary Arterial Hypertension
Epoprostenol for Injection in Patients With Pulmonary Arterial Hypertension
Efficacy of Ventavis Used in Real-life Setting.
A Long-Term, Open-Label Study to Evaluate the Safety of Sitaxsentan Sodium Treatment in Patients With Pulmonary Arterial Hypertension
FUTURE 3 Study Extension
Open Label Study of Sildenafil in Patients With Pulmonary Arterial Hypertension
Long Term Safety and Efficacy of Ralinepag in Pulmonary Arterial Hypertension
Extension of BPS-MR-PAH-203 in Pulmonary Arterial Hypertension (PAH) Patients
The PAH Platform for Deep Phenotyping in Korean Subjects
Testing of HIV Protease Inhibitors to Suppress Inflammation and Improve Cardio Pulmonary Hemodynamics in Subjects With Pulmonary Arterial Hypertension
Beta-blockers in Pulmonary Arterial Hypertension
Effects of the Combination of Bosentan and Sildenafil Versus Sildenafil Monotherapy on Pulmonary Arterial Hypertension (PAH)
A Transition Study From Flolan® to Remodulin® in Patients With Pulmonary Arterial Hypertension
Phase III Clinical Worsening Study of UT-15C in Subjects With PAH Receiving Background Oral Monotherapy
Assess the Efficacy and Safety of Sildenafil When Added to Bosentan in the Treatment of Pulmonary Arterial Hypertension
Screening of Pulmonary Arterial Hypertension in BMPR2 Mutation Carriers
Bronchodilator’s Effects on Exertional Dyspnoea in Pulmonary Arterial Hypertension
Study of BSF 208075 Evaluating Exercise Capacity in Patients With Pulmonary Arterial Hypertension
Investigation of the Safety and Pharmacology of Dry Powder Inhalation of Treprostinil
Pulmonary Arterial Hypertension Quality Enhancement Research Initiative Extension Program
Safety Evaluation of Inhaled Treprostinil Administration Following Transition From Inhaled Ventavis in Pulmonary Arterial Hypertension (PAH) Subjects
Safety Study of PLX-PAD Cells to Treat Pulmonary Arterial Hypertension (PAH)
Effect of BMPR-2 Gene Mutations on Hemodynamic Response by Iloprost Inhalation in Pulmonary Arterial Hypertension
Extension Study for Participants in LIQ861 Trials to Evaluate the Long-term Safety of Dry Powder Inhalation of Treprostinil
Effects of Iloprost Treatment in Adult Patients With Pulmonary Arterial Hypertension Related to Congenital Heart Disease
Biomarkers in Pediatric Congenital Heart Disease and PAH
The PAH Disability and Bothersomeness Questionnaire
Efficacy, Safety, Tolerability and Pharmacokinetics (PK) of Nilotinib (AMN107) in Pulmonary Arterial Hypertension (PAH)
Correlation OF Hemodynamics in Pulmonary Hypertension With Perfusion Lung Scans
Acute Response of Iloprost Inhalation Using the Breelib Nebulizer in Pulmonary Arterial Hypertension
Assessmet of Patients With PAH Right Ventricular Volume
Imaging Control Study, 3D Echo, MR and RHC.
[18F]FES PET/CT in PAH
3D Imaging: Prognostic Role in Pulmonary Arterial Hypertension
Home-based Exercise Training in Patients With Pulmonary Arterial Hypertension: Effect on Skeletal Muscular Function and Metabolism
Reversible Secondary Myelofibrosis or Clonal Myeloproliferative Disorder
Early Detection of Pulmonary Arterial Hypertension Using Cardiac Magnetic Resonance Imaging
Ventavis® Registry Protocol
Effect of Morphine on Dyspnea and 6-Minute Walk Distance in Pulmonary Arterial Hypertension
A Randomized, Double-Blind, Placebo-Controlled Study of Sildenafil in Children With Pulmonary Arterial Hypertension.
TRUST-2: Safety and Efficacy of Intravenous Remodulin® in Patients in India With Pulmonary Arterial Hypertension (PAH)
Clinical Study to Assess the Long-term Safety and Tolerability of ACT 064992 in Patients With Symptomatic Pulmonary Arterial Hypertension
Open Label Access Study Of Sildenafil In Adult Patients With Pulmonary Arterial Hypertension Completing A1481244 Study
Study to Assess the Tolerability and the Safety of the Transition From Inhaled Treprostinil to Oral Selexipag in Patients With Pulmonary Arterial Hypertension
Study to Compare Triple Therapy (Oral Treprostinil, Ambrisentan, and Tadalafil) With Dual Therapy (Ambrisentan, Tadalafil, and Placebo) in Subjects With Pulmonary Arterial Hypertension
Safety, Tolerability, Pharmacokinetics and Efficacy of Two Different Rates of Subcutanous Remodulin® Dose Titration in Pulmonary Arterial Hypertension
Study of Add-on Ambrisentan Therapy to Background Phosphodiesterase Type-5 Inhibitor (PDE5i) Therapy in Pulmonary Arterial Hypertension (ATHENA-1)
Safety And Efficacy Of Sildenafil In Children With Pulmonary Arterial Hypertension
Safety and Efficacy of Inhaled Iloprost in Pediatric Patients With Pulmonary Arterial Hypertension
A Multinational, Multicenter, Study to Assess the Efficacy and Safety of BPS-314d-MR in Subjects With Pulmonary Arterial Hypertension Currently Receiving Treatment With an Endothelin Receptor Antagonist and/or a Phosphodiesterase-5 Inhibitor
Ventricular Reversed Remodeling After LTX in PAH Patients
Observational Description of Compliance for the Daily Ventavis Use Via the Insight Program in Class III Pulmonary Arterial Hypertension Patients
Efficacy Study of Cardizem in Pulmonary Arterial Hypertension
Modulating Effects of Lisinopril on Sildenafil Activity in Pulmonary Arterial Hypertension(PAH)( MELISSA)
Pulmonary Artery Denervation for Treatment of Pulmonary Arterial Hypertension
A Pulmonary Arterial Hypertension Study With Macitentan to Validate the PAH-SYMPACT™ in France, Italy and Spain
Open-Label Extension Study of Ubenimex in Patients With Pulmonary Arterial Hypertension (WHO Group 1)
An Open Label Extension Study to Evaluate the Safety of Continued Therapy of Subcutanous Remodulin® in Pulmonary Arterial Hypertension
A Clinical Study of to Confirm the Doses of Selexipag in Children With Pulmonary Arterial Hypertension
Inhaled Nitric Oxide/INOpulse DS for Pulmonary Arterial Hypertension (PAH)
Extension of the Psychometric Validation Study ORCHESTRA in Patients With PAH
Clinical Study Evaluating the Effects of First-line Oral cOmbination theraPy of maciTentan and tadalafIl in Patients With Newly Diagnosed pulMonary Arterial Hypertension (OPTIMA)
Post Marketing Observational Study in Patients With Pulmonary Arterial Hypertension
ACT-293987 in Pulmonary Arterial Hypertension
Study to Assess the Safety, Tolerability and Pharmacokinetics (PK) of MK-8892 in Participants With Pulmonary Arterial Hypertension (PAH) (MK-8892-005)
A Study of Ranolazine Acute Administration and Short Term Administration in Pulmonary Arterial Hypertension
A Long Term Study of Ambrisentan in Pulmonary Arterial Hypertension Subjects Having Completed AMB-320 (NCT00423748) or AMB-321 (NCT00423202)
A Study of Ubenimex in Patients With Pulmonary Arterial Hypertension (WHO Group 1)
A Study of Sotatercept for the Treatment of Pulmonary Arterial Hypertension (PAH)
Acute Dosing of MK-8892 in Participants With Pulmonary Arterial Hypertension (PAH) (MK-8892-003)
The Efficacy and Safety of Initial Triple Versus Initial Dual Oral Combination Therapy in Patients With Newly Diagnosed Pulmonary Arterial Hypertension
A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Assess Safety and Efficacy of Ambrisentan in Subjects With Pulmonary Arterial Hypertension.
A Study of Sotatercept for the Treatment of Pulmonary Arterial Hypertension
Clinical Study of Inhaled GB002 for Treatment of WHO Group I Pulmonary Arterial Hypertension
An Open-Label, Long-Term Study of Oral Treprostinil in Subjects With Pulmonary Arterial Hypertension
Estrogen Receptor Antagonist in Patients With Pulmonary Arterial Hypertension
Fluoxetine in Pulmonary Arterial Hypertension (PAH) Trial
Safety and Efficacy of Pulmonary Artery Denervation in Patients With Pulmonary Arterial Hypertension
A Clinical Study to Investigate the Long-term Safety of the Drug Macitentan in Patients With Pulmonary Arterial Hypertension Who Were Previously Treated With Macitentan in Clinical Studies.
Tezosentan in Patients With Pulmonary Arterial Hypertension
Study to Assess Safety and Efficacy of Ambrisentan in Subjects With Pulmonary Arterial Hypertension.
EXPEDITE: A Study of Remodulin Induction Followed by Orenitram Optimization to Treat Pulmonary Arterial Hypertension
A Phase 2 Study to Determine the Safety and Efficacy of AIR001 in Subjects With Pulmonary Arterial Hypertension (PAH)
Effect of Selexipag on Daily Life Physical Activity of Patients With Pulmonary Arterial Hypertension.
An Open-Label Extension Trial of UT-15C SR in Subjects With Pulmonary Arterial Hypertension
BEET PAH: a Study to Assess the Effects of Beetroot Juice in Patients With Pulmonary Arterial Hypertension
Efficacy and Safety Study of Udenafil in Patient With Pulmonary Arterial Hypertension(PAH)
Long-term Study of AIR001 in Subjects With WHO Group 1 Pulmonary Arterial Hypertension Who Completed AIR001-CS05
Anastrozole in Patients With Pulmonary Arterial Hypertension
Coenzyme Q-10 and Pulmonary Arterial Hypertension
Sorafenib Study: Dosing in Patients With Pulmonary Arterial Hypertension (PAH)
Study Providing Monotherapy (Sitaxsentan) And Combination Therapy (Sitaxsentan+Sildenafil) To Subjects With Pulmonary Arterial Hypertension (PAH) To Assess Long-Term Safety
Addition of UT-15C SR to Pulmonary Arterial Hypertension Patients Currently Receiving Tyvaso®
Oxygen Treatment and Pulmonary Arterial Hypertension
A Therapeutic Open Label Study of Tocilizumab in the Treatment of Pulmonary Arterial Hypertension
Pilot Chart Review Study Of Sitaxentan Sodium (Thelin) In Patients With Pulmonary Arterial Hypertension (PAH)
Pilot Study of the Safety and Efficacy of Carvedilol in Pulmonary Arterial Hypertension
Feasibility of Slow-paced Respiration Therapy for Treatment of a Symptom Cluster in Pulmonary Arterial Hypertension
Neuromuscular Electrical Stimulation in Pulmonary Arterial Hypertension
Epoprostenol for Injection (EFI/ACT-385781A) – Pulmonary Arterial Hypertension
Selonsertib in Adults With Pulmonary Arterial Hypertension
A Study of RVT-1201 in Patients With Pulmonary Arterial Hypertension (ELEVATE 1)
Safety and Efficacy Study of Transplantation of EPCs to Treat Idiopathic Pulmonary Arterial Hypertension
Safety and Efficacy Study of Transplantation of EPCs to Treat Idiopathic Pulmonary Arterial Hypertension
Pilot Study of the Safety and Efficacy of Anakinra in Pulmonary Arterial Hypertension
The Combination Ambrisentan Plus Spironolactone in Pulmonary Arterial Hypertension Study
Tezosentan in Pulmonary Arterial Hypertension
Oral CXA-10 in Pulmonary Arterial Hypertension
Beta Blockers for Treatment of Pulmonary Arterial Hypertension in Children
Beta-blockers in i-PAH
Cardiac Function and Exercise Capacity in Pulmonary Arterial Hypertension
(-)-Epicatechin and Pulmonary Arterial Hypertension
DelIVery for Pulmonary Arterial Hypertension (PAH)
Spironolactone for Pulmonary Arterial Hypertension
Observation Study With Implantable Medication Pump for Intravenous Treprostinil Therapy in Patients With Pulmonary Arterial Hypertension
Apabetalone for Pulmonary Arterial Hypertension: a Pilot Study
Reducing Right Ventricular Failure in Pulmonary Arterial Hypertension (RELIEVE-PAH)
Transforming Growth Factor Beta Signalling in the Development of Muscle Weakness in Pulmonary Arterial Hypertension
Obstructive Sleep Apnea in Pulmonary Arterial Hypertension (OSA in PAH)
Rt Ventricular Substrate Metabolism as a Predictor of Rt Heart Failure in Patients With Pulmonary Arterial Hypertension
A Mobile Health Intervention in Pulmonary Arterial Hypertension
Pharmacokinetic Study of Sub-q and IV Treprostinil in Kids With Pulmonary Arterial Hypertension (PAH)
Extension to CQTI571A2102 to Evaluate Long-term Safety, Tolerability and Efficacy of Imatinib in Severe Pulmonary Arterial Hypertension (PAH)
Angiogenic Imaging in Pulmonary Arterial Hypertension
Outcome Study Assessing a 75 Milligrams (mg) Dose of Macitentan in Patients With Pulmonary Arterial Hypertension
A Pharmacokinetics Study for Pediatric Participants With Pulmonary Arterial Hypertension
Imatinib (QTI571) in Pulmonary Arterial Hypertension
Study to Evaluate Efficacy and Safety of JTT-251 in Participants With Pulmonary Arterial Hypertension
Effects of Two Dosing Regimens of Bosentan in Children With Pulmonary Arterial Hypertension
Patient Reported Outcomes in Pulmonary Arterial Hypertension
Epoprostenol for Injection in Pulmonary Arterial Hypertension
Study of Intravenous Remodulin in Patients in India With Pulmonary Arterial Hypertension
Physiopathology of Pulmonary Arterial Hypertension: Mechanistic Studies
Epoprostenol for Injection in Pulmonary Arterial Hypertension – Extension of AC-066A401
Compassionate Use of Beraprost Sodium 314d Modified Release for Patients With Pulmonary Arterial Hypertension (PAH)
Iloprost Power Disc-15 in Pulmonary Arterial Hypertension
Study Performed at Various Medical Centers to Learn More About Survival and Expected Course of Pulmonary Arterial Hypertension, a Type of High Blood Pressure in the Lungs Related to the Narrowing of the Small Blood Vessels in the Lungs
Study of Macitentan (ACT-064992) on Morbidity and Mortality in Patients With Symptomatic Pulmonary Arterial Hypertension
Bosentan in Children With Pulmonary Arterial Hypertension
FK506 (Tacrolimus) in Pulmonary Arterial Hypertension
Bosentan in Children With Pulmonary Arterial Hypertension Extension Study
Evaluate The Clinical Effectiveness, Safety And Tolerability Of Sildenafil Used In Doses ≥20mg TID For The Treatment Of Pulmonary Arterial Hypertension
Safety Study of the Switch From Oral Selexipag to Intravenous Selexipag in Subjects With Stable Pulmonary Arterial Hypertension
Clinical Study of Macitentan in Patients With Pulmonary Arterial Hypertension to Psychometrically Validate the PAH-SYMPACT Instrument
Aerobic Exercise Training in Pulmonary Arterial Hypertension
Central China Congenital Heart Disease Associated Pulmonary Arterial Hypertension Cohort Study
Iron Deficiency In Pulmonary Hypertension
Extension to QTI571A2301 to Evaluate the Long-term Safety, Tolerability and Efficacy of Imatinib in Severe Pulmonary Arterial Hypertension (PAH)
Genetic Research of Bone Morphogenetic Protein Receptor-II Gene in Taiwanese Patient With Primary Pulmonary Hypertension
Safety and Efficacy of Imatinib Mesylate in Patients With Pulmonary Arterial Hypertension
Safety and Efficacy of Fluoxetine in Pulmonary Arterial Hypertension
Combined Use of Angiography, Optical Coherence Tomography and Intravascular Ultrasound in Evaluation of Pulmonary Vascular Structure and Function in Patients With Pulmonary Arterial Hypertension Treated With Oral Bosentan
Respiratory and Physical Therapy in Patients With Associated Pulmonary Arterial Hypertension (APAH) With Congenital Heart Defects
Right Ventricular Metabolism in Pulmonary Arterial Hypertension
The Early Recognition of Pulmonary Arterial Hypertension
Safety Study Extension of Iloprost Power 15 in Pulmonary Arterial Hypertension
BMPR2 Mutations and Iron Metabolism in Pulmonary Arterial Hypertension
Sildenafil to Tadalafil in Pulmonary Arterial Hypertension (SITAR)
Responsiveness of Exercise Tests in Pulmonary Arterial Hypertension
Resynchronisation Therapy of Right Ventricle in Pulmonary Arterial Hypertension
REPAIR: Right vEntricular Remodeling in Pulmonary ArterIal hypeRtension
IV Iron Replacement for Iron Deficiency in Idiopathic Pulmonary Arterial Hypertension (IPAH) Patients
Prevalence of the Hyperventilation Syndrome in Pulmonary Arterial Hypertension
Iloprost Power 15 in Pulmonary Arterial Hypertension
Selexipag (ACT-293987) in Pulmonary Arterial Hypertension
The Study of Apelin-APJ System on Pulmonary Hypertension Patients and Healthy Subjects
Proof of Concept Study of IMMUNOadsorption Therapy in Patients With Idiopathic Pulmonary Arterial Hypertension
Repeatability of OCT and IV-US in Pulmonary Arterial Hypertension
Albuterol and Dynamic Hyperinflation in Idiopathic Pulmonary Arterial Hypertension
National Cohort Study of Idiopathic and Heritable Pulmonary Arterial Hypertension
6R-BH4 Pulmonary Arterial Hypertension Study
Pharmacokinetic Effects of QTI571 on Sildenafil and Bosentan in Pulmonary Arterial Hypertension Patients
Safety and Feasibility of Autologous Endothelial Progenitor Cells Transplantation in Patients With Idiopathic Pulmonary Arterial Hypertension