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ClinicalTrials.gov public records Last synced May 22, 2026, 12:13 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–21 of 21 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Persistent Pulmonary Hypertension Clear all
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Chronic Thromboembolic Pulmonary Hypertension
Interventions
Macitentan, Placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years to 80 Years
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
24
States / cities
La Jolla, California • Los Angeles, California • Sacramento, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Respiratory Distress, Transient Tachypnea of the Newborn, Delayed Transition of the Newborn, Persistent Pulmonary Hypertension
Interventions
prone positioning, Supine
Procedure
Lead sponsor
Montefiore Medical Center
Other
Eligibility
Female only
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Aug 30, 2018 · Synced May 22, 2026, 12:13 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Persistent Pulmonary Hypertension, Respiratory Failure
Interventions
Intravenous Sildenafil, Placebo
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Up to 72 Hours
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
7
States / cities
Aurora, Colorado • Chicago, Illinois • Buffalo, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 31, 2019 · Synced May 22, 2026, 12:13 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Persistent Pulmonary Hypertension of the Newborn
Interventions
IV Remodulin, Placebo
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
1 Hour to 14 Days
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2023
U.S. locations
14
States / cities
Little Rock, Arkansas • Los Angeles, California • Palo Alto, California + 11 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2024 · Synced May 22, 2026, 12:13 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Persistent Pulmonary Hypertension of Newborn
Interventions
Not listed
Lead sponsor
Christiana Care Health Services
Other
Eligibility
Up to 6 Months
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
2
States / cities
Newark, Delaware • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2016 · Synced May 22, 2026, 12:13 AM EDT
Terminated Not applicable Interventional Results available
View directory record Official record
Conditions
Persistent Fetal Circulation Syndrome
Interventions
Milrinone Lactate
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
Up to 10 Days
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
2
States / cities
Detroit, Michigan • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 11, 2016 · Synced May 22, 2026, 12:13 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Persistent Fetal Circulation Syndrome, Diaphragmatic Hernia, Meconium Aspiration, Sepsis
Interventions
Not listed
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
1 Day to 30 Days
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 4, 2020 · Synced May 22, 2026, 12:13 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Congenital Diaphragmatic Hernia, Persistent Pulmonary Hypertension of the Newborn, Hypoxemic Respiratory Failure, Pulmonary Hypoplasia
Interventions
Milrinone, Placebo (5% Dextrose)
Drug
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
0 Hours to 168 Hours
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
19
States / cities
Birmingham, Alabama • Palo Alto, California • Atlanta, Georgia + 15 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced May 22, 2026, 12:13 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Infant, Newborn, Infant, Low Birth Weight, Infant, Small for Gestational Age, Infant, Premature, Persistent Fetal Circulation Syndrome, Persistent Pulmonary Hypertension of Newborn
Interventions
Not listed
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 7 Days
Enrollment
385 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 1994
U.S. locations
13
States / cities
Palo Alto, California • New Haven, Connecticut • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2019 · Synced May 22, 2026, 12:13 AM EDT
Terminated Phase 3 Interventional
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, Standard iNO therapy
Drug
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 14 Days
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2003
U.S. locations
18
States / cities
Birmingham, Alabama • Phoenix, Arizona • Palo Alto, California + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced May 22, 2026, 12:13 AM EDT
Completed Phase 4 Interventional
View directory record Official record
Conditions
Respiratory Failure, Infant, Persistent Fetal Circulation
Interventions
inhaled Nitric Oxide, Oxygen (>90% by hood) - standard therapy
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Hour to 1 Week
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2005
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 11, 2008 · Synced May 22, 2026, 12:13 AM EDT
Withdrawn Phase 2 Interventional
View directory record Official record
Conditions
Infant, Newborn, Respiratory Insufficiency, Pulmonary Hypertension, Respiratory Distress Syndrome, Newborn, Streptococcal Infections
Interventions
Inhaled Prostaglandin E1
Drug
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
Up to 7 Days
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
11
States / cities
Birmingham, Alabama • Palo Alto, California • Iowa City, Iowa + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2019 · Synced May 22, 2026, 12:13 AM EDT
Withdrawn Phase 4 Interventional
View directory record Official record
Conditions
Persistent Fetal Circulation Syndrome, Hypertension, Pulmonary, of Newborn, Persistent, Persistent Pulmonary Hypertension of Newborn
Interventions
Inhaled nitric oxide, Nitrogen Gas, Crossover iNO
Drug
Lead sponsor
University of Florida
Other
Eligibility
30 Minutes to 48 Hours
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 6, 2020 · Synced May 22, 2026, 12:13 AM EDT
Terminated Phase 3 Interventional Results available
View directory record Official record
Conditions
Chronic Thromboembolic Pulmonary Hypertension
Interventions
Selexipag, Placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years to 85 Years
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
32
States / cities
La Jolla, California • Los Angeles, California • Aurora, Colorado + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 20, 2024 · Synced May 22, 2026, 12:13 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Persistent Pulmonary Hypertension of the Newborn
Interventions
1 dose of sildenafil
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
Up to 364 Days
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
9
States / cities
Birmingham, Alabama • Indianapolis, Indiana • Louisville, Kentucky + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 1, 2016 · Synced May 22, 2026, 12:13 AM EDT
Terminated Phase 3 Interventional
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 25, 2017 · Synced May 22, 2026, 12:13 AM EDT
Completed Phase 3 Interventional Results available
View directory record Official record
Conditions
Pulmonary Hypertension, Familial Persistent, of the Newborn
Interventions
placebo, iv sildenafil
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
0 Days to 4 Days
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
20
States / cities
Little Rock, Arkansas • Sacramento, California • Washington D.C., District of Columbia + 8 more
Source: ClinicalTrials.gov public record
Updated Aug 15, 2021 · Synced May 22, 2026, 12:13 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
iNO, Non-invasive nitric oxide
Drug · Procedure
Lead sponsor
Emory University
Other
Eligibility
Not listed
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 28, 2014 · Synced May 22, 2026, 12:13 AM EDT
Active, not recruiting Not applicable Interventional
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 7, 2026 · Synced May 22, 2026, 12:13 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Persistent Pulmonary Hypertension of the Newborn
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
Up to 12 Months
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2028
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced May 22, 2026, 12:13 AM EDT
Terminated Phase 4 Interventional
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Inhaled Iloprost
Drug
Lead sponsor
University of Chicago
Other
Eligibility
Up to 7 Days
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 1, 2014 · Synced May 22, 2026, 12:13 AM EDT