An Open Label Access Study For Subjects Who Completed A1481156

Study Overview
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Brief Summary
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The purpose of this study is to provide sildenafil therapy to subjects who have completed the A1481156 study for the treatment of Pulmonary Arterial Hypertension (PAH) in India and are judged by the Investigator to derive clinical benefit from continued treatment with sildenafil citrate. Sildenafil citrate will be supplied for the treatment of Pulmonary Arterial Hypertension (PAH) until the subject continues to derive benefits from the treatment. The treating physicians (and the sponsor) will be responsible for reporting serious adverse events.

Official Title
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A Local, Multicentre, Open Label Access Study, To Provide Sildenafil Therapy For Subjects Who Completed A1481156 Study And Are Judged By The Investigator To Derive Clinical Benefit From Continued Treatment With Sildenafil For Subjects In India

Conditions
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Pulmonary Arterial Hypertension

Intervention / Treatment
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* Drug: Access program - sildenafil citrate, Viagra, Revatio


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subjects who have completed study A1481156 and are judged by the Investigator to derive clinical benefit from continuous treatment with sildenafil citrate therapy. Subjects with pulmonary arterial hypertension (PAH ) being treated at a study site in India Subjects who are willing and able to comply with scheduled visits, treatment plan, and other study procedures Exclusion Criteria: Pregnant or lactating female subjects. Current participation in other studies and during study participation, except for the A1481304 follow-up period. Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration and, in the judgment of the investigator, would make the subject inappropriate for entry into this study.

Ages Eligible for Study
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Minimum Age: 12 Years
Maximum Age: 30 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Drug: Access program - sildenafil citrate, Viagra, Revatio|The recommended dose is 20 mg TID for subjects with body weight > 20 kg and 10 mg TID for subjects with body weight ≤ 20 kg. If subject is 18 years of age or older, the recommended dose is 20 mg TID, regardless of body weight. If a subject was receiving a higher dose in study A1481156 and the investigator believes that the subject requires continued treatment on that dose, or if dose reduction is judged to be associated with pulmonary arterial hypertension (PAH) deterioration in a particular subject, the higher dose may be made available, as judged on an individual basis on discussion with the sponsor.|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |