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Terminated Phase 3 Interventional

Study of the Efficacy and Safety of Tezosentan in Patients With Pre-operative Pulmonary Hypertension, Due to Left Heart Disease, Undergoing Open Heart Surgery

ClinicalTrials.gov ID: NCT00458276

Public ClinicalTrials.gov record NCT00458276. 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 Oct 20, 2026, 5:15 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

Multicenter, Double-blind, Randomized, Placebo-controlled, Parallel-group Study to Assess the Efficacy, Safety and Tolerability of Tezosentan in Patients With Pre-operative Pulmonary Hypertension, Due to Left Heart Disease, Undergoing Cardiac Surgery

Brief summary

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

Endothelin-1 is a powerful substance that may be involved in causing hemodynamic instability (problems related to unstable blood pressure) during and after open heart surgery. Tezosentan is an investigational intravenous drug that blocks the endothelin receptors. This clinical trial will assess the potential benefit of tezosentan compared with placebo in the treatment of patients undergoing open heart surgery with cardiopulmonary bypass (CPB). Treatment time is from the start of surgery up to 24 hours.

Study identification

NCT ID
NCT00458276
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 3
Lead sponsor
Idorsia Pharmaceuticals Ltd.
Industry
Enrollment
274 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 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 2007 (Type not available)
Primary completion
Feb 2008 (Actual)
Completion
Mar 2008 (Actual)
Last update posted
Jul 9, 2018

2007 – 2008

United States locations

U.S. sites
9
U.S. states
6
U.S. cities
8
Facility City State ZIP Site status
Stanford University School of Medicine Stanford California 94305 —
Columbia University Medical Center New York New York 10032 —
Montefiore Medical Center/Albert Einstein College of Medicine New York New York 10467 —
Duke University Medical Center Durham North Carolina 27710 —
Wake Forest University Health Sciences Winston-Salem North Carolina 27157 —
The Cleveland Clinic Cleveland Ohio 44195 —
Baylor University Medical Center Dallas Texas 75226 —
Texas Heart Institute/St. Luke's Episcopal Hospital/Baylor College Houston Texas 77030 —
University of Virginia Health System Charlottesville Virginia 22908 —

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 24 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00458276, 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 Jul 9, 2018 · Synced Oct 20, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00458276 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →