Open label extension study to the pivotal efficacy study to assess the safety of sildenafil citrate in patients with pulmonary arterial hypertension
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
260
Safety
Standard safety data
Efficacy
6-Minute Walk Test
BORG Dyspnoea Score
WHO Functional Class
Quality of Life SF-36 and EQ-5D
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Pfizer Investigational Site
Birmingham, Alabama, United States
Pfizer Investigational Site
Birmingham, Alabama, United States
Pfizer Investigational Site
Birmingham, Alabama, United States
Pfizer Investigational Site
La Jolla, California, United States
Pfizer Investigational Site
La Jolla, California, United States
Pfizer Investigational Site
Los Angeles, California, United States
Pfizer Investigational Site
Los Angeles, California, United States
Pfizer Investigational Site
Los Angeles, California, United States
Pfizer Investigational Site
Los Angeles, California, United States
Pfizer Investigational Site
San Diego, California, United States
...and 55 more locations