Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional
Official Title: A Phase III Extension Study of Udenafil in Adolescents With Single Ventricle Physiology After Fontan Palliation
Brief Summary: This study is a 12-month (52 week) safety extension study to supplement the FUEL Phase III clinical trial to provide safety information regarding the long-term use of udenafil in adolescents with single ventricle congenital heart disease.