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ClinicalTrials.gov public records Last synced Oct 23, 2026, 8:59 AM EDT

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Showing 265–288 of 402 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: PAH Clear all
Terminated Phase 3 Interventional

Inhaled Nitric Oxide for Preterm Infants With Severe Respiratory Failure

NCT00016523
View directory record Official record
Conditions
Infant, Newborn, Infant, Low Birth Weight, Infant, Small for Gestational Age, Infant, Premature, Respiratory Distress Syndrome (RDS), Sepsis, Pneumonia, Hypertension, Pulmonary
Interventions
Inhaled nitric oxide, Placebo
Drug
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 120 Hours
Enrollment
420 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2006
U.S. locations
17
States / cities
Birmingham, Alabama • Palo Alto, California • San Diego, California + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 26, 2017 · Synced Oct 23, 2026, 8:59 AM EDT
Completed Phase 2 Interventional Results available

A Study of Sotatercept for the Treatment of Pulmonary Arterial Hypertension (PAH)

NCT03496207
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Placebo, Sotatercept, SOC
Drug · Other
Lead sponsor
Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA
Industry
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
12
States / cities
Phoenix, Arizona • Tucson, Arizona • San Francisco, California + 7 more
Source: ClinicalTrials.gov public record
Updated Apr 19, 2023 · Synced Oct 23, 2026, 8:59 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History Study of Biomarkers in Pulmonary Arterial Hypertension

NCT01730092
View directory record Official record
Conditions
Pulmonary Disease, Pulmonary Hypertension
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 100 Years
Enrollment
270 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 23, 2026, 8:59 AM EDT
Withdrawn Not applicable Interventional

FDG Uptake and Lung Blood Flow in PAH Before and After Treatment With Ambrisentan

NCT02958358
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
CT imaging, functional PET imaging
Other
Lead sponsor
Robert Scott Harris, M.D.
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 15, 2016 · Synced Oct 23, 2026, 8:59 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Oral UT-15C Tablets to Treat Pulmonary Arterial Hypertension

NCT00887978
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
UT-15C SR, Placebo
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
310 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
40
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fresno, California + 33 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2013 · Synced Oct 23, 2026, 8:59 AM EDT
Completed Not applicable Interventional Results available

Utility of At-home Monitoring of Exercise Capacity by App-based 6-minute Walk Test

NCT03893500
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Home-based 6 minute walk test
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 23, 2026, 8:59 AM EDT
Recruiting No phase listed Observational

Pediatric Pulmonary Hypertension Network (PPHNet) Informatics Registry

NCT02249923
View directory record Official record
Conditions
Pulmonary Vascular Disease, Pulmonary Arterial Hypertension
Interventions
Not listed
Lead sponsor
New York Medical College
Other
Eligibility
1 Day to 21 Years
Enrollment
2,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2031
U.S. locations
13
States / cities
Palo Alto, California • San Francisco, California • Aurora, Colorado + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2025 · Synced Oct 23, 2026, 8:59 AM EDT
Not listed No phase listed Observational

Assessment of the TGF-beta Pathway and Micro-RNA in Pediatric Pulmonary Arterial Hypertension

NCT04489251
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Protein Elisa analysis, microRNA analysis, whole exome sequencing
Diagnostic Test
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
2 Years to 17 Years
Enrollment
40 participants
Timeline
2020 – 2023
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 22, 2021 · Synced Oct 23, 2026, 8:59 AM EDT
Completed Phase 2 Interventional Results available

Bardoxolone Methyl Evaluation in Patients With Pulmonary Hypertension (PH) - LARIAT

NCT02036970
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Pulmonary Hypertension, Interstitial Lung Disease, Idiopathic Interstitial Pneumonia, Idiopathic Pulmonary Fibrosis, Sarcoidosis, Respiratory Bronchiolitis Associated Interstitial Lung Disease, Desquamative Interstitial Pneumonia, Cryptogenic Organizing Pneumonia, Acute Interstitial Pneumonitis, Idiopathic Lymphoid Interstitial Pneumonia, Idiopathic Pleuroparenchymal Fibroelastosis
Interventions
Bardoxolone methyl, Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 75 Years
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
30
States / cities
Phoenix, Arizona • Beverly Hills, California • Los Angeles, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2025 · Synced Oct 23, 2026, 8:59 AM EDT
Completed No phase listed Observational Results available

A Study to Assess the Safety and Efficacy of Treprostinil to Facilitate Liver Transplantation in Patients With Portopulmonary Hypertension

NCT01028651
View directory record Official record
Conditions
Portopulmonary Hypertension, Pulmonary Arterial Hypertension, Pulmonary Hypertension
Interventions
Treprostinil
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
Not listed
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
4
States / cities
Los Angeles, California • Atlanta, Georgia • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 24, 2017 · Synced Oct 23, 2026, 8:59 AM EDT
Completed Phase 3 Interventional Results available

A Long Term Extension Study Evaluating Safety Of Sildenafil Citrate When Used To Treat Pulmonary Arterial Hypertension (PAH) In Children

NCT00159874
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Sildenafil citrate
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
1 Year to 17 Years
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2012
U.S. locations
11
States / cities
Palo Alto, California • Stanford, California • Aurora, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Oct 23, 2026, 8:59 AM EDT
Active, not recruiting Not applicable Interventional

Reducing Right Ventricular Failure in Pulmonary Arterial Hypertension (RELIEVE-PAH)

NCT03838445
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
V-Wave Interatrial Shunt
Device
Lead sponsor
V-Wave Ltd
Industry
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
2
States / cities
Los Angeles, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Oct 23, 2026, 8:59 AM EDT
Completed No phase listed Observational

REVEAL Registry™: Registry to Evaluate Early And Long-term PAH Disease Management

NCT00370214
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Not listed
Lead sponsor
Actelion
Industry
Eligibility
3 Months and older
Enrollment
3,515 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
54
States / cities
Birmingham, Alabama • Tucson, Arizona • La Jolla, California + 39 more
Source: ClinicalTrials.gov public record
Updated May 17, 2013 · Synced Oct 23, 2026, 8:59 AM EDT
Terminated Phase 4 Interventional Results available

To Assess The Efficacy and Safety Of Oral Sildenafil in the Treatment of Pulmonary Arterial Hypertension.

NCT00430716
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Sildenafil citrate
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
15
States / cities
Phoenix, Arizona • Augusta, Georgia • Decatur, Georgia + 7 more
Source: ClinicalTrials.gov public record
Updated Dec 22, 2020 · Synced Oct 23, 2026, 8:59 AM EDT
Terminated No phase listed Observational

Impact of Inhaled Treprostinil Sodium on Ventilation Perfusion Matching

NCT01494896
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Chronic Obstructive Pulmonary Disease
Interventions
Not listed
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 80 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
3
States / cities
Jacksonville, Florida • Weston, Florida
Source: ClinicalTrials.gov public record
Updated May 7, 2015 · Synced Oct 23, 2026, 8:59 AM EDT
Completed Phase 2 Interventional

Study in Subjects With PAH and PH Secondary to IPF Using Inhaled GeNOsyl.

NCT01265888
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Idiopathic Pulmonary Fibrosis
Interventions
Inhaled Nitric Oxide
Drug
Lead sponsor
Geno LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
10
States / cities
Birmingham, Alabama • Los Angeles, California • Sacramento, California + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 19, 2016 · Synced Oct 23, 2026, 8:59 AM EDT
Recruiting No phase listed Observational

Pulmonary Hypertension Association Registry

NCT04071327
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Chronic Thromboembolic Pulmonary Hypertension, Pulmonary Hypertension
Interventions
Not listed
Lead sponsor
Pulmonary Hypertension Association, Inc.
Other
Eligibility
0 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
52
States / cities
Phoenix, Arizona • Sacramento, California • San Francisco, California + 40 more
Source: ClinicalTrials.gov public record
Updated Nov 14, 2025 · Synced Oct 23, 2026, 8:59 AM EDT
Withdrawn Not applicable Interventional

Body Volume Regulation in Pulmonary Arterial Hypertension With Right Ventricular Failure

NCT00811486
View directory record Official record
Conditions
Right Heart Failure, Pulmonary Hypertension
Interventions
Spironolactone and conivaptan
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 28, 2013 · Synced Oct 23, 2026, 8:59 AM EDT
Active, not recruiting Phase 3 Interventional

A Phase 3 Study to Evaluate the Safety and Tolerability of L606 in Subjects With PAH or PH-ILD

NCT04691154
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Pulmonary Hypertension Due to Lung Diseases
Interventions
L606 inhalation suspension
Combination Product
Lead sponsor
Liquidia Technologies, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2031
U.S. locations
8
States / cities
Scottsdale, Arizona • Los Angeles, California • Jacksonville, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Oct 23, 2026, 8:59 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Safety and Efficacy of Imatinib Mesylate in Patients With Pulmonary Arterial Hypertension

NCT00477269
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Imatinib mesylate, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
3
States / cities
Los Angeles, California • Newark, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 23, 2015 · Synced Oct 23, 2026, 8:59 AM EDT
Withdrawn Phase 2 Interventional

Albuterol and Dynamic Hyperinflation in Idiopathic Pulmonary Arterial Hypertension

NCT02108743
View directory record Official record
Conditions
Idiopathic Pulmonary Arterial Hypertension.
Interventions
Albuterol., Normal saline placebo
Drug
Lead sponsor
American Medical Association Foundation
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 30, 2015 · Synced Oct 23, 2026, 8:59 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Carbon Monoxide Therapy for Severe Pulmonary Arterial Hypertension

NCT01523548
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Carbon Monoxide
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 9, 2017 · Synced Oct 23, 2026, 8:59 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of Behavior, Executive Function, Neurotransmitter Function and Genomic Expression Kuvan Nonresponders

NCT01274026
View directory record Official record
Conditions
Phenylketonuria, Behavior and Behavior Mechanisms, PAH Gene Expression
Interventions
sapropterin dihydrochloride
Drug
Lead sponsor
Tulane University School of Medicine
Other
Eligibility
2 Years to 21 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 14, 2023 · Synced Oct 23, 2026, 8:59 AM EDT
Completed No phase listed Observational

Retrospective Chart Review of First-time Opsumit® (Macitentan) Users in the United States

NCT03197688
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Notapplicable
Other
Lead sponsor
Actelion
Industry
Eligibility
Not listed
Enrollment
2,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
105
States / cities
Phoenix, Arizona • La Jolla, California • Loma Linda, California + 89 more
Source: ClinicalTrials.gov public record
Updated Mar 30, 2025 · Synced Oct 23, 2026, 8:59 AM EDT