21
Participants
Start Date
April 30, 2011
Primary Completion Date
December 31, 2012
Study Completion Date
December 31, 2012
Sildenafil by injection
Sildenafil 0.125mg/kg injection over 20min
Sildenafil by injection
Sildenafil 0.25mg/kg injection over 20min
Sildenafil by injection
Sildenafil 0.35mg/kg by injection over 20min
Sildenafil by injection
Sildenafil 0.45mg/kg by injection over 20min
Duke University Medical Center, Durham
Lead Sponsor
Duke University
OTHER