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Showing 1–24 of 40 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Ambrisentan Clear all
Completed Phase 2Phase 3 Interventional

Ambrisentan (Letairis) for Sarcoidosis Associated Pulmonary Hypertension

NCT00851929
View directory record Official record
Conditions
Sarcoidosis, Pulmonary Hypertension
Interventions
Ambrisentan
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 99 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Sep 1, 2026, 7:43 PM 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Withdrawn Not applicable Interventional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 14, 2016 · Synced Sep 1, 2026, 7:43 PM EDT
Terminated Phase 2 Interventional Results available

Efficacy and Safety of Ambrisentan in Children 8-18yrs

NCT01332331
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Ambrisentan - low dose, Ambrisentan - high dose
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
8 Years to 18 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
4
States / cities
Aurora, Colorado • Boston, Massachusetts • Ann Arbor, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Safety Evaluation of Aminophylline and Ambrisentan When Administered Orally Alone and in Combination to Healthy Volunteers

NCT01530464
View directory record Official record
Conditions
High Altitude Pulmonary Hypertension
Interventions
Aminophylline, Ambrisentan, Aminophylline plus ambrisentan
Drug
Lead sponsor
Thies Schroeder
Other
Eligibility
18 Years to 40 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 15, 2014 · Synced Sep 1, 2026, 7:43 PM 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 10, 2014 · Synced Sep 1, 2026, 7:43 PM EDT
Active, not recruiting Phase 3 Interventional

Outcome Study Assessing a 75 Milligrams (mg) Dose of Macitentan in Patients With Pulmonary Arterial Hypertension

NCT04273945
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Macitentan 10 mg, Macitentan 37.5 mg, Macitentan 75 mg, Placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
935 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
43
States / cities
Phoenix, Arizona • Scottsdale, Arizona • La Jolla, California + 35 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 2 Interventional

Study of BSF 208075 Evaluating Exercise Capacity in Patients With Pulmonary Arterial Hypertension

NCT00046319
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
BSF 208075
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
15
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2009 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Not applicable Interventional Results available

Efficacy of Ambrisentan in Limited Scleroderma Patients in Improving Blood Flow to Hands or Feet

NCT01072669
View directory record Official record
Conditions
Ischemia
Interventions
ambrisentan
Drug
Lead sponsor
Soumya Chatterjee
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 2, 2013 · Synced Sep 1, 2026, 7:43 PM EDT
Completed No phase listed Observational Results available

Study of Incidence of Respiratory Tract AEs in Patients Treated With Tyvaso® Compared to Other FDA Approved PAH Therapies

NCT01266265
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
inhaled prostacyclin, prostacyclin, subcutaneous and intravenous prostacyclin, oral ERA, oral PDE5 inhibitors
Drug
Lead sponsor
United Therapeutics
Industry
Eligibility
Not listed
Enrollment
1,333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
88
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 65 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2016 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Drug Combination on Exercise Performance at High Altitude

NCT01902758
View directory record Official record
Conditions
Acute Mountain Sickness
Interventions
ambrisentan and theophylline, placebo
Drug
Lead sponsor
University of Montana
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Feb 25, 2016 · Synced Sep 1, 2026, 7:43 PM EDT
Terminated Phase 4 Interventional Results available

The Combination Ambrisentan Plus Spironolactone in Pulmonary Arterial Hypertension Study

NCT02253394
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Ambrisentan plus Spironolactone, Ambrisentan plus Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 14, 2019 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 3 Interventional Results available

A Study of Tadalafil in Pediatric Participants With Pulmonary Arterial Hypertension (PAH)

NCT01824290
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
Tadalafil, Placebo, ERA as specific PAH treatment
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
6 Months to 17 Years
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
7
States / cities
Atlanta, Georgia • Detroit, Michigan • Cincinnati, Ohio + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 1, 2026, 7:43 PM EDT
Withdrawn No phase listed Observational

Pharmacogenomics in Pulmonary Arterial Hypertension

NCT00593905
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Pulmonary Hypertension, PAH WHO Group I
Interventions
Sitaxsentan, Bosentan, Ambrisentan
Drug
Lead sponsor
West Penn Allegheny Health System
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 8, 2021 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 3 Interventional

ARIES - Ambrisentan in Patients With Moderate to Severe Pulmonary Arterial Hypertension (PAH)

NCT00091598
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Ambrisentan
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
372 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
44
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 36 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2010 · Synced Sep 1, 2026, 7:43 PM EDT
Terminated Phase 3 Interventional Results available

(ARTEMIS-IPF) Randomized, Placebo-Controlled Study to Evaluate Safety and Effectiveness of Ambrisentan in IPF

NCT00768300
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis
Interventions
Ambrisentan, Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
40 Years to 80 Years
Enrollment
494 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
57
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 48 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2014 · Synced Sep 1, 2026, 7:43 PM EDT
Terminated Phase 3 Interventional Results available

ARTEMIS-PH - Study of Ambrisentan in Subjects With Pulmonary Hypertension Associated With Idiopathic Pulmonary Fibrosis

NCT00879229
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis, Pulmonary Hypertension
Interventions
Ambrisentan, Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
35 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
51
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Davis, California + 40 more
Source: ClinicalTrials.gov public record
Updated May 14, 2014 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 3 Interventional Results available

A Study of First-Line Ambrisentan and Tadalafil Combination Therapy in Subjects With Pulmonary Arterial Hypertension (PAH)

NCT01178073
View directory record Official record
Conditions
Hypertension, Pulmonary
Interventions
ambrisentan, tadalafil
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 75 Years
Enrollment
610 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
61
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 50 more
Source: ClinicalTrials.gov public record
Updated Sep 12, 2017 · Synced Sep 1, 2026, 7:43 PM EDT
Terminated Phase 3 Interventional Results available

Ambrisentan for Inoperable Chronic Thromboembolic Pulmonary Hypertension.

NCT01884675
View directory record Official record
Conditions
Hypertension
Interventions
Ambrisentan 5 mg, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 80 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Boston, Massachusetts • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 5, 2017 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 4 Interventional Results available

A Clinical Trial of Ambrisentan and Tadalafil in Pulmonary Arterial Hypertension Associated With Systemic Sclerosis

NCT01042158
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Systemic Sclerosis, Scleroderma Spectrum of Diseases, Connective Tissue Disease, Pulmonary Hypertension
Interventions
tadalafil and ambrisentan upfront combination therapy
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 11, 2017 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Mechanisms of Cerebrovascular Control

NCT02936687
View directory record Official record
Conditions
Metabolic Syndrome X
Interventions
NOS Inhibition, ET-1 Inhibition, NOS Inhibition Placebo, 3 Tesla MRI, Intravenous Catheter, Oral Glucose Tolerance Test, ET-1 Inhibition Placebo
Drug · Device · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 45 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 17, 2021 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 2 Interventional Results available

Ambrisentan in Single Ventricle

NCT02080637
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome, Hypoplastic Right-sided Heart Complex
Interventions
Ambrisentan, Placebo
Drug · Other
Lead sponsor
Kevin Hill
Other
Eligibility
24 Months to 120 Months
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Sep 1, 2026, 7:43 PM EDT
Withdrawn Phase 4 Interventional

Efficacy and Safety of Combination Ambrisentan and Tadalafil in Patients With Portopulmonary Hypertension

NCT03309592
View directory record Official record
Conditions
Portopulmonary Hypertension, Pulmonary Hypertension, Cirrhosis, Liver
Interventions
Ambrisentan Pill, Tadalafil Pill
Drug
Lead sponsor
Ochsner Health System
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 6, 2018 · Synced Sep 1, 2026, 7:43 PM EDT
Terminated Not applicable Interventional

Ambrisentan for the Improvement in Right Ventricular Strain in Scleroderma Associated Pulmonary Arterial Hypertension

NCT02169752
View directory record Official record
Conditions
Pre-Pulmonary Atrial Hypertension
Interventions
Ambrisentan
Drug
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years to 80 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 18, 2021 · Synced Sep 1, 2026, 7:43 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Test the Safety of Combined Dosing With Aminophylline and Ambrisentan in Exercising Healthy Human Volunteers at Simulated High Altitude

NCT01794078
View directory record Official record
Conditions
Acute Mountain Sickness and Fatigue
Interventions
Aminophylline 400 mg, Ambrisentan 5 mg, Placebo
Drug · Other
Lead sponsor
Robert J Noveck, M.D.
Other
Eligibility
18 Years to 50 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 12, 2015 · Synced Sep 1, 2026, 7:43 PM EDT