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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Tezosentan Clear all
Not listed No phase listed Observational

Enhanced Assisted Reproductive Technology Pregnancy Rate by Prostacyclin Analog (Iloprost)

NCT01549171
View directory record Official record
Conditions
Pregnancy
Interventions
Iloprost, normal saline
Drug · Other
Lead sponsor
Fertility Specialists of Houston
Other
Eligibility
20 Years to 39 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 8, 2012 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 3 Interventional

Tezosentan in Acute Heart Failure

NCT00525707
View directory record Official record
Conditions
Acute Heart Failure, Acute Decompensation of Chronic Heart Failure, New Onset of Heart Failure
Interventions
tezosentan
Drug
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Eligibility
18 Years and older
Enrollment
735 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
8
States / cities
Birmingham, Alabama • Palo Alto, California • Denver, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 4 Interventional

Comparison of Vasodilator Response of Inhaled Epoprostenol and Inhaled Nitric Oxide

NCT04231084
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Vasodilator testing (Inhaled Nitric Oxide), Vasodilator testing (Inhaled Epoprostenol)
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 5, 2024 · Synced Sep 6, 2026, 2:20 PM EDT
Active, not recruiting No phase listed Observational

ADAPT - A Patient Registry of the Real-world Use of Orenitram®

NCT03045029
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Oral treprostinil
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
41
States / cities
Fresno, California • Los Angeles, California • San Juan Capistrano, California + 37 more
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 3 Interventional

Tezosentan in the Treatment of Acute Heart Failure

NCT00524433
View directory record Official record
Conditions
Acute Heart Failure, Acute Decompensation of Chronic Heart Failure, New Onset of Heart Failure
Interventions
tezosentan, placebo
Drug
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Eligibility
18 Years and older
Enrollment
713 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
16
States / cities
Huntsville, Alabama • Los Angeles, California • Jacksonville, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Sep 6, 2026, 2:20 PM EDT
Terminated Phase 2 Interventional

Tezosentan in Patients With Pulmonary Arterial Hypertension

NCT01094067
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
ACT-050089, Placebo
Drug · Other
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 8, 2018 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 2 Interventional Results available

A Study of Sotatercept for the Treatment of Pulmonary Arterial Hypertension

NCT03738150
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Sotatercept, SOC
Biological · Other
Lead sponsor
Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA
Industry
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
4
States / cities
Tucson, Arizona • Boston, Massachusetts • Rochester, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2024 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 4 Interventional Results available

Epoprostenol for Injection in Pulmonary Arterial Hypertension - Extension of AC-066A401

NCT01105117
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
ACT-385781A (Actelion Epoprostenol), Flolan®
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years to 65 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
7
States / cities
La Jolla, California • Aurora, Colorado • Durham, North Carolina + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2012 · Synced Sep 6, 2026, 2:20 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 6, 2013 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 2 Interventional

Inhaled Iloprost, Dynamic Hyperinflation, and Oxidative Stress in COPD Patients

NCT01941225
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Inhaled iloprost 5.0 mcg, Placebo
Drug
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
40 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 15, 2016 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 4 Interventional Results available

Inhaled Nitric Oxide and Inhaled Prostacyclin After Cardiac Surgery for Heart Transplant or LVAD Placement

NCT01717209
View directory record Official record
Conditions
Heart Failure
Interventions
Nitric Oxide, Prostacyclin
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 8, 2017 · Synced Sep 6, 2026, 2:20 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Loss of Effect of Aspirin on Platelet Aggregation During Chronic Administration

NCT00748371
View directory record Official record
Conditions
Platelet Aggregation
Interventions
aspirin, placebo
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older · Male only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2011
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Sep 6, 2026, 2:20 PM EDT
Active, not recruiting Phase 3 Interventional

Extension Study for Participants in LIQ861 Trials to Evaluate the Long-term Safety of Dry Powder Inhalation of Treprostinil

NCT03992755
View directory record Official record
Conditions
Primary Pulmonary Hypertension
Interventions
LIQ861 Inhaled Treprostinil
Drug
Lead sponsor
Liquidia Technologies, Inc.
Industry
Eligibility
18 Years and older
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
25
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 19 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Sep 6, 2026, 2:20 PM EDT
Terminated No phase listed Observational

Reversible Secondary Myelofibrosis or Clonal Myeloproliferative Disorder

NCT00722254
View directory record Official record
Conditions
Primary Myelofibrosis, Primary Pulmonary Hypertension, Secondary Myelofibrosis, Pulmonary Arterial Hypertension
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 20, 2016 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Comparative Effects of Aspirin and NHP-544C

NCT02189122
View directory record Official record
Conditions
Healthy
Interventions
Bradykinin, Aspirin 81 mg, Aspirin 162 mg, NHP544-C 81 mg, NHP544C 162 mg, Placebo
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 55 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 11, 2016 · Synced Sep 6, 2026, 2:20 PM EDT
Active, not recruiting No phase listed Observational

TrEatment Approach in the Multimodal Era Registry

NCT05629052
View directory record Official record
Conditions
Chronic Thromboembolic Pulmonary Hypertension, CTEPH
Interventions
Pulmonary endarterectomy, Balloon pulmonary angioplasty, Pulmonary hypertension (PH)-specific medication
Procedure · Drug
Lead sponsor
International CTEPH Association
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
4
States / cities
San Diego, California • Evanston, Illinois • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated May 7, 2025 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 2 Interventional

Trial of Iloprost Inhaled Solution as Add-On Therapy With Bosentan in Subjects With Pulmonary Arterial Hypertension (PAH)

NCT00086463
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Ayerza Syndrome, Pulmonary Hypertension
Interventions
Iloprost or placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
12 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
17
States / cities
Birmingham, Alabama • La Jolla, California • Palo Alto, California + 13 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2011 · Synced Sep 6, 2026, 2:20 PM EDT
Completed No phase listed Observational

Pulmonary Arterial Hypertension Quality Enhancement Research Initiative Extension Program

NCT01389206
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
observational study with patients treated with Tracleer, Ventavis, Veletri, Opsumit and/or Uptravi
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
797 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2018
U.S. locations
75
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 63 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2018 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 2 Interventional Results available

VentaProst in Subjects With COVID-19 Requiring Mechanical Ventilation

NCT04452669
View directory record Official record
Conditions
COVID-19
Interventions
VentaProst (inhaled epoprostenol delivered via a dedicated delivery system)
Drug
Lead sponsor
Aerogen Pharma Limited
Industry
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 1 Interventional Results available

Open-label, Clinical Study to Evaluate the Safety and Tolerability of TreT in Subjects With PAH Currently Using Tyvaso

NCT03950739
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Treprostinil Inhalation Powder
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
16
States / cities
Birmingham, Alabama • Los Angeles, California • Jacksonville, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2024 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 3 Interventional Results available

Investigation of the Safety and Pharmacology of Dry Powder Inhalation of Treprostinil

NCT03399604
View directory record Official record
Conditions
Primary Pulmonary Hypertension
Interventions
LIQ861 Inhaled Treprostinil
Drug
Lead sponsor
Liquidia Technologies, Inc.
Industry
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
38
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 30 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Sep 6, 2026, 2:20 PM EDT
Enrolling by invitation Phase 3 Interventional

A Study Evaluating the Long-Term Efficacy and Safety of Ralinepag in Subjects With PAH Via an Open-Label Extension

NCT03683186
View directory record Official record
Conditions
PAH, Pulmonary Hypertension, Pulmonary Arterial Hypertension, Hypertension, Connective Tissue Diseases, Familial Primary Pulmonary Hypertension, Vascular Diseases, Cardiovascular Diseases, Hypertension, Pulmonary, Lung Diseases, Respiratory Tract Disease
Interventions
Ralinepag
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
48
States / cities
Phoenix, Arizona • Tucson, Arizona • La Jolla, California + 38 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 2 Interventional

A Clinical Study of Sotatercept (MK-7962) in People With Pulmonary Arterial Hypertension (PAH) (MK-7962-024)

NCT06664801
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Sotatercept, Background PAH Therapy
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
9
States / cities
Phoenix, Arizona • Aurora, Colorado • Indianapolis, Indiana + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Sep 6, 2026, 2:20 PM EDT
Completed Phase 3 Interventional

A Study Evaluating the Efficacy and Safety of Ralinepag to Improve Treatment Outcomes in PAH Patients

NCT03626688
View directory record Official record
Conditions
PAH, Pulmonary Hypertension, Pulmonary Arterial Hypertension, Hypertension, Connective Tissue Diseases, Familial Primary Pulmonary Hypertension, Vascular Diseases, Cardiovascular Diseases, Hypertension, Pulmonary, Lung Diseases, Respiratory Tract Disease
Interventions
Ralinepag, Placebo
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
687 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
68
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 50 more
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 6, 2026, 2:20 PM EDT