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Efficacy and Safety of Oral Bosentan in Pulmonary Arterial Hypertension Class II
This study is ongoing, but not recruiting participants.
First Received: September 16, 2004   Last Updated: October 21, 2009   History of Changes
Sponsor: Actelion
Information provided by: Actelion
ClinicalTrials.gov Identifier: NCT00091715
  Purpose

The present trial investigates a possible use of oral bosentan, which is currently approved for the treatment of symptoms of pulmonary arterial hypertension (PAH) Class III and IV, to patients suffering from PAH Class II.


Condition Intervention Phase
Pulmonary Hypertension
Drug: bosentan
Drug: placebo
Phase III

Study Type: Interventional
Study Design: Treatment, Randomized, Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Placebo Control, Parallel Assignment, Safety/Efficacy Study
Official Title: A Randomized, Double-blind, Placebo-controlled, Multicenter Study to Assess the Efficacy, Safety, and Tolerability of Bosentan in Patients With Mildly Symptomatic Pulmonary Arterial Hypertension (PAH)

Resource links provided by NLM:


Further study details as provided by Actelion:

Primary Outcome Measures:
  • exercise capacity [ Time Frame: Baseline to end of study ] [ Designated as safety issue: No ]
  • cardiac hemodynamics [ Time Frame: Baseline to end of study ] [ Designated as safety issue: No ]

Enrollment: 185
Study Start Date: April 2004
Estimated Study Completion Date: January 2011
Primary Completion Date: November 2006 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
1: Experimental
62.5 mg table twice a day for 4 weeks followed by 125 mg tablet twice a day for 6 months followed by an open label period until end of study.
Drug: bosentan
65 mg tablet twice a day for 4 weeks followed by 125 mg tablet twice a day until end of study
2: Placebo Comparator
placebo for 6 months followed by an open label period
Drug: placebo
placebo for 6 months followed by an open-label period

  Eligibility

Ages Eligible for Study:   12 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • PAH NYHA Class II
  • Significant elevation of mean pulmonary arterial pressure
  • Significant elevation of pulmonary vascular resistance at rest
  • Limited 6-minute walk distance

Exclusion Criteria:

  • PAH secondary to portal hypertension, complex congenital heart disease or reverse shunt
  • Restrictive or obstructive lung disease
  • Significant vasoreactivity
  • Treatments for PAH (within 4 weeks of randomization)
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00091715

  Show 34 Study Locations
Sponsors and Collaborators
Actelion
  More Information

No publications provided by Actelion

Additional publications automatically indexed to this study by National Clinical Trials Identifier (NCT ID):
Responsible Party: Actelion ( Sponsor )
Study ID Numbers: EARLY, AC-052-364
Study First Received: September 16, 2004
Last Updated: October 21, 2009
ClinicalTrials.gov Identifier: NCT00091715     History of Changes
Health Authority: United States: Food and Drug Administration

Keywords provided by Actelion:
Pulmonary arterial hypertension
PAH
PPH
bosentan
early

Additional relevant MeSH terms:
Respiratory Tract Diseases
Hypertension, Pulmonary
Therapeutic Uses
Lung Diseases
Vascular Diseases
Cardiovascular Diseases
Cardiovascular Agents
Antihypertensive Agents
Pharmacologic Actions
Bosentan
Hypertension

ClinicalTrials.gov processed this record on November 05, 2009