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Phase 2 Extension Study of Ambrisentan in Pulmonary Arterial Hypertension
This study is ongoing, but not recruiting participants.
Sponsored by: Myogen
Information provided by: Myogen
ClinicalTrials.gov Identifier: NCT00424021
  Purpose

AMB-220-E is an international, multicenter, open-label study examining the long-term safety of ambrisentan in subjects who have previously completed Myogen study AMB-220, "A Phase II, Randomized, Double-Blind, Dose-Controlled, Dose-Ranging, Multicenter Study of BSF 208075 Evaluating Exercise Capacity in Subjects with Moderate to Severe Pulmonary Arterial Hypertension".


Condition Intervention Phase
Pulmonary Hypertension
Drug: ambrisentan
Phase II

Genetics Home Reference related topics: pulmonary arterial hypertension
MedlinePlus related topics: Exercise and Physical Fitness High Blood Pressure Pulmonary Hypertension
Drug Information available for: Ambrisentan
U.S. FDA Resources
Study Type: Interventional
Study Design: Treatment, Randomized, Open Label, Dose Comparison, Single Group Assignment, Safety/Efficacy Study
Official Title: An Open-Label, Long-Term Study of Ambrisentan in Pulmonary Hypertension Subjects Having Completed Myogen Study AMB-220

Further study details as provided by Myogen:

Primary Outcome Measures:
  • Incidence and severity of adverse events associated with long-term exposure of ambrisentan in patients with PAH who have completed the Phase II AMB-220 study.

Secondary Outcome Measures:
  • Change from baseline in exercise capacity as measured by the 6-minute walk test distance; Borg Dyspnea Index; WHO Functional Classification, Subject Global Assessment; clinical worsening of PAH; failure-free treatment status
  • and long-term survival.

Estimated Enrollment: 60
Study Start Date: April 2003
  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Must have completed Visit 14/Week 24 of the AMB-220 study.
  • Women of childbearing potential must have a negative urine pregnancy test at the Screening/Enrollment Visit and agree to use a reliable double barrier method of contraception until study completion and for at least four weeks following their final study visit.
  • Must have completed the Down-titration Period of AMB-220 prior to enrollment in AMB-220-E and will meet the following additional criteria:
  • Subjects with a diagnosis of HIV must have stable disease status at the time of Screening/Enrollment.
  • Must be stable on conventional therapy for PAH for at least four weeks prior to the Screening Visit.

Exclusion Criteria:

  • Chronic prostanoid therapy, or other investigational prostacyclin derivative within four weeks prior to the Screening Visit.
  • IV inotrope use within two weeks prior to the Screening Visit.
  • Females who are pregnant or breastfeeding.
  • Contraindication to treatment with an ERA (endothelin receptor antagonist).
  Contacts and Locations
No Contacts or Locations Provided
  More Information

Related Info  This link exits the ClinicalTrials.gov site

Study ID Numbers: AMB-220-E
Study First Received: January 17, 2007
Last Updated: January 17, 2007
ClinicalTrials.gov Identifier: NCT00424021  
Health Authority: United States: Food and Drug Administration

Study placed in the following topic categories:
Idiopathic pulmonary hypertension
Respiratory Tract Diseases
Hypertension, Pulmonary
Lung Diseases
Vascular Diseases
Hypertension

Additional relevant MeSH terms:
Cardiovascular Diseases

ClinicalTrials.gov processed this record on January 16, 2009