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ClinicalTrials.gov public records Last synced Oct 14, 2026, 1:50 AM EDT

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Showing 73–96 of 449 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Heritable Pulmonary Arterial Hypertension Clear all
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 14, 2026, 1:50 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Integrated Diagnostics Characterization of Right Ventricular Diastolic Flow Dynamics in Pulmonary Arterial Hypertension

NCT01491646
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Not listed
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years to 75 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Oct 14, 2026, 1:50 AM EDT
Recruiting Phase 2 Interventional

A Trial of Phosphodiesterase-5 Inhibitor in Neonatal Congenital Diaphragmatic Hernia (TOP-CDH)

NCT05201144
View directory record Official record
Conditions
Congenital Diaphragmatic Hernia, Pulmonary Hypertension
Interventions
Sildenafil Oral Suspension, Placebo
Drug · Other
Lead sponsor
University of Utah
Other
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 4, 2025 · Synced Oct 14, 2026, 1:50 AM EDT
Active, not recruiting Phase 4 Interventional

A Study of a Mean Pulmonary Artery Pressure-Targeted Approach With Early and Rapid Treprostinil Therapy to Reverse Right Ventricular Remodeling in Participants With Pulmonary Arterial Hypertension

NCT05203510
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Parenteral Treprostinil, Oral Treprostinil
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
28
States / cities
Phoenix, Arizona • Fresno, California • Los Angeles, California + 23 more
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Oct 14, 2026, 1:50 AM EDT
Completed Phase 1 Interventional

Clinical Study of Inhaled GB002 for Treatment of WHO Group I Pulmonary Arterial Hypertension

NCT03926793
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
GB002, Placebo, Generic Dry Powder Inhaler
Drug · Device
Lead sponsor
GB002, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
12
States / cities
La Jolla, California • Sacramento, California • Aurora, Colorado + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Oct 14, 2026, 1:50 AM EDT
Completed No phase listed Observational Results available

Patient Global Impression Questions for Activity-Induced Symptoms in Participants With PAH

NCT03888365
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Treprostinil, Non-Treprostinil PAH Medications
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
43 participants
Timeline
2019
U.S. locations
10
States / cities
Birmingham, Alabama • Beverly Hills, California • Santa Barbara, California + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2021 · Synced Oct 14, 2026, 1:50 AM EDT
Terminated Phase 2 Interventional

Study of Cicletanine for Pulmonary Arterial Hypertension (PAH)

NCT00832507
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Cicletanine, Cicletanine Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
16 Years to 70 Years
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
39
States / cities
Mobile, Alabama • Phoenix, Arizona • Los Angeles, California + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2014 · Synced Oct 14, 2026, 1:50 AM 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 Aug 20, 2026 · Synced Oct 14, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Results available

Carnitine Consumption and Augmentation in Pulmonary Arterial Hypertension

NCT04908397
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Familial Primary Pulmonary Hypertension, Primary Pulmonary Hypertension, Lung Diseases, Carnitine Nutritional Deficiency
Interventions
L-carnitine
Dietary Supplement
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 14, 2026, 1:50 AM EDT
Completed Phase 1 Interventional

Sorafenib Study: Dosing in Patients With Pulmonary Arterial Hypertension (PAH)

NCT00452218
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Sorafenib
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 24, 2016 · Synced Oct 14, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Single Ascending Dose Study for Evaluation of Safety, Tolerability and Pharmacokinetics of L606

NCT04041648
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
L606 (Liposomal Treprostinil) Inhalation Solution 51ug, L606 Inhalation System, Placebo Solution
Drug · Device · Other
Lead sponsor
Pharmosa Biopharm Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Oct 14, 2026, 1:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of Renal Impairment on the Pharmacokinetics of Oral Treprostinil

NCT01131845
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Renal Dysfunction
Interventions
UT-15C SR (treprostinil diethanolamine)
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years to 79 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated May 17, 2012 · Synced Oct 14, 2026, 1:50 AM EDT
Active, not recruiting Not applicable Interventional

Preductal Oxygen Saturation Target in Term and Late Preterm Neonates With Hypoxemic Respiratory Failure or Pulmonary Hypertension

NCT04938167
View directory record Official record
Conditions
Persistent Pulmonary Hypertension of the Newborn, Hypoxemic Respiratory Failure
Interventions
95% - 99% SpO2 target
Other
Lead sponsor
University of California, Davis
Other
Eligibility
0 Days to 28 Days
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Oct 14, 2026, 1:50 AM EDT
Completed No phase listed Observational

Cardiac Assessment by PV Loop in IPAH and Scleroderma PAH

NCT04610788
View directory record Official record
Conditions
Scleroderma, Pulmonary Artery Hypertension
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 100 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 9, 2026 · Synced Oct 14, 2026, 1:50 AM EDT
Completed Not applicable Interventional

Biomarkers in the Diagnosis and Assessment of Pulmonary Arterial Hypertension (PAH)

NCT00566423
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Blood draw
Other
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 65 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jun 23, 2011 · Synced Oct 14, 2026, 1:50 AM EDT
Terminated Phase 4 Interventional

Transitioning To IV Remodulin From Ventavis in Patients With PAH: Safety, Efficacy and Treatment Satisfaction

NCT00458042
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
treprostinil sodium
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
2
States / cities
La Jolla, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Nov 12, 2007 · Synced Oct 14, 2026, 1:50 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 14, 2026, 1:50 AM EDT
Completed Phase 4 Interventional Results available

Safely Change From Bosentan to Ambrisentan in Pulmonary Hypertension

NCT01330108
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
ambrisentan
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 11, 2014 · Synced Oct 14, 2026, 1:50 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Heart Institute Biobank & Registry for Adult Congenital Heart Disease and Related Disorders

NCT07477197
View directory record Official record
Conditions
Adult Congenital Heart Disease, Pulmonary Hypertension, Connective Tissue Disease, Other Cardiovascular Conditions
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
16 Years and older
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2050
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Oct 14, 2026, 1:50 AM EDT
Completed Phase 1 Interventional

Hydroxyurea and Erythropoietin to Treat Sickle Cell Anemia

NCT00270478
View directory record Official record
Conditions
Sickle Cell Disease, Chronic Kidney Disease, Pulmonary Hypertension
Interventions
Erythropoietin and Hydroxyurea
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Oct 14, 2026, 1:50 AM EDT
Terminated Phase 3 Interventional

Inhaled Nitric Oxide Study for Respiratory Failure in Newborns

NCT00005776
View directory record Official record
Conditions
Infant, Newborn, Hypertension, Pulmonary, Persistent Fetal Circulation Syndrome, Pneumonia, Aspiration, Respiratory Distress Syndrome, Newborn, Respiratory Insufficiency
Interventions
Inhaled nitric oxide, Placebo
Drug
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 14 Days
Enrollment
235 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 1998
U.S. locations
11
States / cities
Palo Alto, California • New Haven, Connecticut • Washington D.C., District of Columbia + 8 more
Source: ClinicalTrials.gov public record
Updated Sep 26, 2017 · Synced Oct 14, 2026, 1:50 AM EDT
Not listed Not applicable Interventional

TReatment Of Pulmonary HYpertension 1-US Study

NCT02835950
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Therapeutic Intra-Vascular UltraSound (TIVUS™) System
Device
Lead sponsor
SoniVie Inc.
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
4
States / cities
San Diego, California • Ann Arbor, Michigan • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2023 · Synced Oct 14, 2026, 1:50 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 14, 2026, 1:50 AM EDT
Completed Phase 2 Interventional Results available

Dose-response Study of the Safety and Efficacy of Beraprost Sodium Modified Release (BPS-MR) in Patients With Pulmonary Arterial Hypertension (PAH)

NCT00989963
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Beraprost Sodium Modified Release
Drug
Lead sponsor
Lung Biotechnology PBC
Industry
Eligibility
18 Years to 75 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
6
States / cities
Torrance, California • Naperville, Illinois • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2020 · Synced Oct 14, 2026, 1:50 AM EDT