- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00423748
Study to Assess Safety and Efficacy of Ambrisentan in Subjects With Pulmonary Arterial Hypertension.
April 15, 2009 updated by: Gilead Sciences
Ambrisentan in PAH - A Phase III, Randomized, Double-Blind, Placebo-Controlled, Multicenter, Efficacy Study of Ambrisentan in Subjects With Pulmonary Arterial Hypertension
A phase 3, randomized, double-blind, placebo-controlled study to assess safety and efficacy of ambrisentan in subjects with pulmonary arterial hypertension.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Subjects in these randomized studies will receive one of two doses of ambrisentan or placebo.
Inclusion is not based on a specified WHO functional classification.
Rather, subjects with WHO Class I-IV symptoms are eligible if their 6-minute walk distance is 150-450 meters and they meet the study-specified hemodynamic criteria.
Subjects with anorexigen or HIV infection related PAH are eligible but subjects with congenital heart disease and pediatric subjects are excluded.
The study requires a historical cardiac catheterization and other diagnostic procedures.
Study Type
Interventional
Enrollment
186
Phase
- Phase 3
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- 18 years of age or order
- Current diagnosis of either PPH orPAH secondary to the scleroderma spectrum of disease, systemic lupus erythematosus, anorexigen use, or HIV infection at the Screening Visit
- Right heart catheterization, completed prior to Screening Visit must meet pre-specified hemodynamic criteria
- Female subjects of childbearing potential must have a negative serum pregnancy test and must agree to use a reliable double barrier method of contraception until study completion and for at least four weeks following their final study visit
- Male subjects must be informed of the potential risks of testicular tubular atrophy and infertility associated with taking this study drug and queried regarding his understanding of the potential risks as described in the Informed Consent Form
Exclusion Criteria:
- PAH due to or associated with congenital heart disease, coronary artery disease, left heart disease, interstitial lung disease, chronic obstructive pulmonary disease, veno-occlusive disease, chronic thrombotic and/or embolic disease, or sleep apnea
- Portopulmonary hypertension
- Bosentan within four weeks prior to Screening
- Phosphodiesterase type V inhibitor or chronic prostanoid therapy within four weeks prior to Screening
- IV inotrope use within two weeks prior to Screening
- ALT or AST lab value that is greater than 1.5 times the upper limit of normal
- Pulmonary function tests not meeting pre-specified criteria
- Contraindication to treatment with an ERA
- History of malignancies other than basal cell carcinoma of the skin or in situ carcinoma of the cervix within the past five years
- Females who are pregnant or breastfeeding
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
---|
Change from baseline in the six-minute walk distance evaluated after 12 weeks of therapy compared to placebo.
|
Secondary Outcome Measures
Outcome Measure |
---|
Clinical worsening of PAH.
|
Assessment of the safety and tolerability of the study drug.
|
Change from baseline measured after 12 weeks of treatment compared to placebo in the Borg Dyspnea Index; WHO Functional Classification; and the SF-36 Health Survey.
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
December 1, 2003
Study Completion
February 1, 2006
Study Registration Dates
First Submitted
January 17, 2007
First Submitted That Met QC Criteria
January 17, 2007
First Posted (Estimate)
January 18, 2007
Study Record Updates
Last Update Posted (Estimate)
April 16, 2009
Last Update Submitted That Met QC Criteria
April 15, 2009
Last Verified
April 1, 2009
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- AMB-320
- ARIES-1
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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