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Showing 1–24 of 27 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: macitentan (ACT-064992) Clear all
Withdrawn Phase 4 Interventional

Macitentan in the Treatment of Organ Rejection After Lung Transplantation

NCT02893176
View directory record Official record
Conditions
Lung Transplant Rejection
Interventions
macitentan, placebo (for macitentan)
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 10, 2020 · Synced Sep 4, 2026, 5:12 AM EDT
Terminated Phase 3 Interventional Results available

A Study to Evaluate Efficacy and Safety of Macitentan 75 mg in Inoperable or Persistent/Recurrent Chronic Thromboembolic Pulmonary Hypertension

NCT04271475
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 Sep 4, 2026, 5:12 AM EDT
Terminated Phase 3 Interventional Results available

Clinical Study of Macitentan in Patients With PAH to Psychometrically Validate PAH-SYMPACT Instrument

NCT01847014
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Macitentan
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years to 80 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
2
States / cities
Louisville, Kentucky • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Sep 4, 2026, 5:12 AM EDT
Completed No phase listed Observational

Retrospective Chart Review of First-time Opsumit® (Macitentan) Users in the United States

NCT03197688
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Notapplicable
Other
Lead sponsor
Actelion
Industry
Eligibility
Not listed
Enrollment
2,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
105
States / cities
Phoenix, Arizona • La Jolla, California • Loma Linda, California + 89 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced Sep 4, 2026, 5:12 AM EDT
Completed No phase listed Observational

OPsumit USers Registry

NCT02126943
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Opsumit (macitentan)
Drug
Lead sponsor
Actelion
Industry
Eligibility
Not listed
Enrollment
2,686 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
144
States / cities
Mobile, Alabama • Phoenix, Arizona • Fullerton, California + 117 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 3 Interventional Results available

Study of Macitentan (ACT-064992) on Morbidity and Mortality in Patients With Symptomatic Pulmonary Arterial Hypertension

NCT00660179
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
macitentan (ACT-064992), placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
12 Years and older
Enrollment
742 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
33
States / cities
Birmingham, Alabama • Pheonix, Arizona • Los Angeles, California + 28 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2015 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 4 Interventional Results available

REPAIR: Right vEntricular Remodeling in Pulmonary ArterIal hypeRtension

NCT02310672
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Macitentan
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years to 64 Years
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
8
States / cities
Boston, Massachusetts • Minneapolis, Minnesota • St Louis, Missouri + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 2 Interventional Results available

Clinical Study to Evaluate the Safety and Tolerability of Macitentan in Subjects With Combined Pre- and Post-capillary Pulmonary Hypertension (CpcPH) Due to Left Ventricular Dysfunction

NCT02070991
View directory record Official record
Conditions
Pulmonary Hypertension
Interventions
Macitentan, Placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
6
States / cities
Louisville, Kentucky • Boston, Massachusetts • Ann Arbor, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated May 14, 2019 · Synced Sep 4, 2026, 5:12 AM 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 4, 2026, 5:12 AM EDT
Completed Phase 3 Interventional Results available

Macitentan for the Treatment of Digital Ulcers in Systemic Sclerosis Patients

NCT01474109
View directory record Official record
Conditions
Systemic Sclerosis, Ulcers
Interventions
macitentan 3mg, macitentan 10mg, placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
289 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
15
States / cities
Tucson, Arizona • Los Angeles, California • Aventura, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Jan 5, 2015 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 2 Interventional Results available

Macitentan Use in an Idiopathic Pulmonary Fibrosis Clinical Study

NCT00903331
View directory record Official record
Conditions
Idiopathic Pulmonary Fibrosis
Interventions
ACT-064992 (macitentan), Placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
15
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2014 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 4 Interventional Results available

Endothelin-1 and Cardiac Allograft Vasculopathy (CAV)

NCT05373108
View directory record Official record
Conditions
Cardiac Allograft Vasculopathy
Interventions
Macitentan
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 11, 2024 · Synced Sep 4, 2026, 5:12 AM EDT
Withdrawn Phase 2Phase 3 Interventional

CompRehensive Phenotypic Characterization of Patients With Scleroderma-Associated ILD and PH

NCT03726398
View directory record Official record
Conditions
Interstitial Lung Disease, Scleroderma, Pulmonary Hypertension
Interventions
Opsumit 10 Mg Tablet
Drug
Lead sponsor
Franz Rischard, DO
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Sep 4, 2026, 5:12 AM EDT
Terminated Phase 4 Interventional Results available

Crossover Study From Macitentan or Bosentan Over to Ambrisentan

NCT02885012
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Ambrisentan
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 80 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
New Orleans, Louisiana • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 7, 2019 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 3 Interventional Results available

Clinical Study to Evaluate the Effects of Macitentan on Exercise Capacity in Subjects With Eisenmenger Syndrome

NCT01743001
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Macitentan 10 mg, Placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
12 Years and older
Enrollment
226 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
7
States / cities
Los Angeles, California • Palo Alto, California • Atlanta, Georgia + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Macitentan and Tadalafil as a Fixed Dose Combination and the Free Combination in Healthy Adult Participants

NCT04235270
View directory record Official record
Conditions
Healthy
Interventions
FDC of Macitentan and Tadalafil, Macitentan, Tadalafil
Combination Product · Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 4 Interventional Results available

PORtopulmonary Hypertension Treatment wIth maCitentan - a randOmized Clinical Trial

NCT02382016
View directory record Official record
Conditions
Portopulmonary Hypertension
Interventions
Macitentan, Placebo
Drug · Other
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
29
States / cities
Phoenix, Arizona • La Jolla, California • Los Angeles, California + 23 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 3 Interventional Results available

Clinical Study to Compare the Efficacy and Safety of Macitentan and Tadalafil Monotherapies With the Corresponding Fixed-dose Combination Therapy in Subjects With Pulmonary Arterial Hypertension (PAH)

NCT03904693
View directory record Official record
Conditions
Pulmonary Arterial Hypertension (PAH) (WHO Group 1 PH)
Interventions
FDC macitentan/tadalafil, Macitentan 10 mg, Tadalafil 40 mg, Placebo FDC, Placebo macitentan, Placebo tadalafil
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
26
States / cities
Fullerton, California • Los Angeles, California • Atlanta, Georgia + 22 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Sep 4, 2026, 5:12 AM EDT
Terminated Phase 2 Interventional Results available

Macitentan in Pulmonary Hypertension of Sickle Cell Disease

NCT02651272
View directory record Official record
Conditions
Pulmonary Hypertension, Sickle Cell Disease
Interventions
macitentan
Drug
Lead sponsor
Boston University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 7, 2020 · Synced Sep 4, 2026, 5:12 AM 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 4, 2026, 5:12 AM EDT
Completed Phase 3 Interventional Results available

Clinical Study of Macitentan in Patients With Pulmonary Arterial Hypertension to Psychometrically Validate the PAH-SYMPACT Instrument

NCT01841762
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Macitentan
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
284 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
81
States / cities
Birmingham, Alabama • Phoenix, Arizona • Beverly Hills, California + 57 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2019 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate Whether Macitentan is an Effective and Safe Treatment for Patients With Heart Failure With Preserved Ejection Fraction and Pulmonary Vascular Disease

NCT03153111
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction
Interventions
Macitentan, Placebo
Drug
Lead sponsor
Actelion
Industry
Eligibility
18 Years and older
Enrollment
143 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
24
States / cities
Phoenix, Arizona • Beverly Hills, California • San Diego, California + 20 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2025 · Synced Sep 4, 2026, 5:12 AM EDT
Completed Phase 3 Interventional Results available

A Study to Assess Whether Macitentan Delays Disease Progression in Children With Pulmonary Arterial Hypertension (PAH)

NCT02932410
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Macitentan, Standard-of-care
Drug · Other
Lead sponsor
Actelion
Industry
Eligibility
1 Month to 17 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
20
States / cities
Phoenix, Arizona • Los Angeles, California • San Francisco, California + 17 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Sep 4, 2026, 5:12 AM EDT
Terminated Phase 3 Interventional

Effects of Combination Medical Therapy Followed by BPA on Right Ventricular-PA Coupling and Hemodynamics in CTEPH

NCT05140525
View directory record Official record
Conditions
CTEPH
Interventions
Macitentan Tablets, Riociguat, balloon pulmonary angioplasty
Drug · Device
Lead sponsor
Dr Sudarshan Rajagopal
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 4, 2026, 5:12 AM EDT