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ClinicalTrials.gov public records Last synced Oct 23, 2026, 1:20 PM EDT

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Showing 289–312 of 402 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: PAH Clear all
Withdrawn Phase 2 Interventional

Dose Determination Safety and Activity Study of Inhaled NX1011 to Treat Pulmonary Arterial Hypertension

NCT00323024
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
NX1011
Drug
Lead sponsor
NITROX, LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
6
States / cities
Phoenix, Arizona • La Jolla, California • Newark, Delaware + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 30, 2007 · Synced Oct 23, 2026, 1:20 PM EDT
Terminated Phase 3 Interventional Results available

A Long-Term, Open-Label Study to Evaluate the Safety of Sitaxsentan Sodium Treatment in Patients With Pulmonary Arterial Hypertension

NCT00811018
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Sitaxsentan
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years to 75 Years
Enrollment
1,192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
45
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 31 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2012 · Synced Oct 23, 2026, 1:20 PM EDT
Completed Phase 2 Interventional Results available

Interventions Against Insulin Resistance in Pulmonary Arterial Hypertension

NCT03617458
View directory record Official record
Conditions
Pulmonary Artery Hypertension
Interventions
Metformin, Placebo, mHealth Intervention, Usual Care
Drug · Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Nashvile, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 23, 2026, 1:20 PM EDT
Active, not recruiting Phase 2Phase 3 Interventional

An Extension Study of Treprostinil Palmitil Inhalation Powder (TPIP) for Pulmonary Arterial Hypertension (PAH)

NCT05649748
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Treprostinil Palmitil, Placebo
Drug
Lead sponsor
Insmed Incorporated
Industry
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
6
States / cities
Jacksonville, Florida • Tampa, Florida • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 23, 2026, 1:20 PM EDT
Completed No phase listed Observational

Study Of Right Ventricular Performance In PAH Patients Treated With Rapid Dose Treprostinil (Remodulin)

NCT02074449
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Not listed
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 17, 2016 · Synced Oct 23, 2026, 1:20 PM EDT
Terminated Phase 1Phase 2 Interventional

Gene Therapy Clinical Study in Adult PKU

NCT03952156
View directory record Official record
Conditions
Phenylketonurias, PAH Deficiency
Interventions
HMI-102
Genetic
Lead sponsor
Homology Medicines, Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
13
States / cities
Los Angeles, California • Orange, California • Tampa, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 29, 2023 · Synced Oct 23, 2026, 1:20 PM EDT
Completed Phase 4 Interventional

A Transition Study From Flolan® to Remodulin® in Patients With Pulmonary Arterial Hypertension

NCT00058929
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Pulmonary Hypertension
Interventions
treprostinil sodium
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
8
States / cities
Los Angeles, California • Torrance, California • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2013 · Synced Oct 23, 2026, 1:20 PM EDT
Completed No phase listed Observational

Novel Index (PIMR) in PAH

NCT05812976
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Pulmonary Index of Microcirculatory Resistance, Right Ventricle Index of Microcirculatory Resistance
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2025 · Synced Oct 23, 2026, 1:20 PM EDT
Terminated Phase 2 Interventional

A Phase 2 Study to Determine the Safety and Efficacy of AIR001 in Subjects With Pulmonary Arterial Hypertension (PAH)

NCT01725256
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
AIR001 (sodium nitrite inhalation solution)
Drug
Lead sponsor
Aires Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
17
States / cities
La Jolla, California • Torrance, California • Aurora, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 9, 2014 · Synced Oct 23, 2026, 1:20 PM EDT
Completed Phase 4 Interventional Results available

Assess the Efficacy and Safety of Sildenafil When Added to Bosentan in the Treatment of Pulmonary Arterial Hypertension

NCT00323297
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Bosentan, Placebo, Sildenafil Citrate
Drug · Other
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2013
U.S. locations
6
States / cities
Los Angeles, California • Detroit, Michigan • Pittsburgh, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2021 · Synced Oct 23, 2026, 1:20 PM EDT
Terminated No phase listed Observational

Early, Simple and Reliable Detection of Pulmonary Arterial Hypertension (PAH) in Systemic Sclerosis (SSc)

NCT00706082
View directory record Official record
Conditions
Systemic Sclerosis, Pulmonary Arterial Hypertension, Pulmonary Hypertension
Interventions
Not listed
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
490 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
23
States / cities
Birmingham, Alabama • Los Angeles, California • Torrance, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2012 · Synced Oct 23, 2026, 1:20 PM EDT
Completed Phase 3 Interventional Results available

Clinical Investigation Into Inhaled Treprostinil Sodium in Patients With Severe Pulmonary Arterial Hypertension (PAH)

NCT00147199
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Inhaled treprostinil, Placebo inhalation solution
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
15
States / cities
Birmingham, Alabama • Tucson, Arizona • La Jolla, California + 12 more
Source: ClinicalTrials.gov public record
Updated Jan 2, 2024 · Synced Oct 23, 2026, 1:20 PM EDT
Recruiting Phase 2 Interventional

129 Xenon MRI as a Biomarker for Diagnosis and Response to Therapy in Pulmonary Arterial Hypertension (PAH)

NCT06104228
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Idiopathic Pulmonary Arterial Hypertension, Pulmonary Arterial Hypertension Associated With Connective Tissue Disease (Disorder), Connective Tissue Diseases
Interventions
129Xe Hyperpolarized
Drug
Lead sponsor
Bastiaan Driehuys
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Oct 23, 2026, 1:20 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vulnerability of the Fetus/Infant to PAH, PM2.5 AND ETS.

NCT00044603
View directory record Official record
Conditions
Pregnancy
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 40 Years · Female only
Enrollment
505 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2006
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 15, 2014 · Synced Oct 23, 2026, 1:20 PM EDT
Terminated Phase 3 Interventional Results available

Inhaled Imatinib Pulmonary Arterial Hypertension Clinical Trial - Follow Up Long Term Extension (IMPAHCT-FUL)

NCT05557942
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
AV-101
Drug
Lead sponsor
Aerovate Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
186 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
16
States / cities
Phoenix, Arizona • Tucson, Arizona • Los Angeles, California + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 10, 2024 · Synced Oct 23, 2026, 1:20 PM EDT
Terminated Phase 2 Interventional Results available

The "Power 15 Study": Safety Study of Inhalation of Ventavis With the Power Disc-15 Setting

NCT00467896
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Iloprost PD-6, Iloprost PD-15
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years to 85 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
12
States / cities
Phoenix, Arizona • La Jolla, California • Iowa City, Iowa + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2013 · Synced Oct 23, 2026, 1:20 PM EDT
Completed Phase 2 Interventional Results available

A Dose-escalation Study in Subjects With Pulmonary Arterial Hypertension (PAH)

NCT03177603
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
GSK2586881
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 75 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 21, 2020 · Synced Oct 23, 2026, 1:20 PM EDT
Withdrawn Phase 3 Interventional

Study of PAH Subjects With LTOT Use That Have Demonstrated Improved Exercise Tolerance With the Use of Inhaled Nitric

NCT03602781
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Placebo, iNO
Drug
Lead sponsor
Bellerophon Pulse Technologies
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Chicago, Illinois • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 23, 2026, 1:20 PM EDT
Terminated Phase 3 Interventional Results available

Extension to QTI571A2301 to Evaluate the Long-term Safety, Tolerability and Efficacy of Imatinib in Severe Pulmonary Arterial Hypertension (PAH)

NCT01117987
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Imatinib, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
19
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 16 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2015 · Synced Oct 23, 2026, 1:20 PM EDT
Completed Phase 1 Interventional

Microbiota Transplant Therapy for Pulmonary Arterial Hypertension: Early Safety and Feasibility Study

NCT04884971
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Intestinal microbiota transplant (IMT)
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Oct 23, 2026, 1:20 PM EDT
Recruiting Phase 3 Interventional

An Adaptive Program of IKT-001 in Pulmonary Arterial Hypertension (PAH)

NCT07365332
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
IKT-001, Placebo
Drug
Lead sponsor
Inhibikase Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
486 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
15
States / cities
Scottsdale, Arizona • Beverly Hills, California • Santa Barbara, California + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 23, 2026, 1:20 PM EDT
Withdrawn Phase 3 Interventional

Study to Assess Acute Vasodilation Response of Inhaled Nitric Oxide

NCT02436512
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Inhaled Nitric Oxide
Drug
Lead sponsor
Geno LLC
Industry
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
2
States / cities
Birmingham, Alabama • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 7, 2015 · Synced Oct 23, 2026, 1:20 PM EDT
Completed Phase 3 Interventional

Safety and Efficacy Study of Sitaxentan Sodium (Thelin™) in Patients With Pulmonary Arterial Hypertension

NCT00080457
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
sitaxsentan sodium
Drug
Lead sponsor
Encysive Pharmaceuticals
Industry
Eligibility
12 Years to 75 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 9, 2007 · Synced Oct 23, 2026, 1:20 PM EDT
Recruiting No phase listed Observational

Risk and Resilience in Pulmonary Arterial Hypertension and Genetically Susceptible Individuals

NCT05584722
View directory record Official record
Conditions
Idiopathic Pulmonary Arterial Hypertension, Heritable Pulmonary Arterial Hypertension, Unaffected Mutation Carriers: Healthy Participants With a Known BMPR2 Gene Mutation and Normal Pulmonary Pressure and RV Function on Echo, Healthy Individuals With no Cardiopulmonary Disease
Interventions
Not listed
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
15 Years to 80 Years
Enrollment
150 participants
Timeline
2022 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Oct 23, 2026, 1:20 PM EDT