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Completed Phase 3 Interventional Results available

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

ClinicalTrials.gov ID: NCT00660179

Public ClinicalTrials.gov record NCT00660179. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 4:42 AM EDT

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

Official title

A Multicenter, Double-blind, Randomized, Placebo-controlled, Parallel Group, Event-driven, Phase III Study to Assess the Effects of Macitentan (ACT-064992) on Morbidity and Mortality in Patients With Symptomatic Pulmonary Arterial Hypertension

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The AC-055-302/SERAPHIN study will be an event-driven Phase III study, comparing two different doses of macitentan (ACT-064992) (3 and 10 mg) vs placebo in patients with symptomatic PAH. The main study objective is to demonstrate that macitentan (ACT-064992) prolongs time to the first morbidity or mortality event, and to evaluate the benefit/risk profile of macitentan (ACT-064992) in the treatment of patients with symptomatic PAH.

Study identification

NCT ID
NCT00660179
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Actelion
Industry
Enrollment
742 participants

Conditions and interventions

Eligibility (public fields only)

Age range
12 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 30, 2008
Primary completion
Feb 29, 2012
Completion
Mar 31, 2012
Last update posted
Sep 27, 2015

2008 – 2012

United States locations

U.S. sites
33
U.S. states
25
U.S. cities
31
Facility City State ZIP Site status
University of Alabama at Birmingham Birmingham Alabama 35249-0001
Arizona Pulmonary Specialists Pheonix Arizona 85013
GLVA Healthcare Center Los Angeles California
University of California, San Diego San Diego California
Santa Barbara Cottage Hospital Santa Barbara California
Liu Center for Pulmonary Hypertension Torrance California
University of Colorado Health Sciences Center Denver Colorado
Mayo Clinic, Jacksonville Jacksonville Florida
Emory University Hospital - McKelvey Center for Lung Transplantation & Pulmonary Vascular Disease Atlanta Georgia 30322
Pulmonary & Critical Care of Atlanta Atlanta Georgia 30342
Southeastern Lung Care Decatur Georgia
University of Chicago Hospitals Chicago Illinois
University of Iowa Iowa City Iowa
University of Kansas Medical Center Kansas City Kansas 66160
Kentuckiana Pulmonary Associate, PLLC Louisville Kentucky
Medical Center of Louisiana at New Orleans New Orleans Louisiana
Maine Medical Center Portland Maine 04102
University of Maryland School of Medicine Baltimore Maryland 21201
Boston University School of Medicine Boston Massachusetts
Pulmonary/Critical Care Division/Tufts New England Medical Center Boston Massachusetts
University of Michigan Ann Arbor Michigan
Washington University School of Medicine St Louis Missouri 63110
University of NJ - Robert Wood Johnson Medical School New Brunswick New Jersey
Columbia University Medical Center - Pediatric Cardiology New York New York
Duke University Medical Center Durham North Carolina
University of Cincinnati Ohio Heart Health Center Cincinnati Ohio
Ohio State University Columbus Ohio 43210
Vanderbilt University Medical Center Nashville Tennessee
University of Texas Medical Center - St. Paul University Dallas Texas 75235
Baylor College of Medicine and the Methodist Hospital Houston Texas 77030
Dept. of Pulmonary Medicine - Latter Day Saints Hospital Salt Lake City Utah
Sentara Hospital T/A Sentara Cardiovascular Research Institute Norfolk Virginia 23507
Comprehensive Cardiovascular Care Group Milwaukee Wisconsin

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 120 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00660179, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 27, 2015 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00660179 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →