160
Participants
Start Date
July 2, 2024
Primary Completion Date
December 31, 2027
Study Completion Date
December 31, 2027
Sildenafil Citrate low dose
Sildenafil citrate 20 mg, oral, TID
Placebo
Placebo, oral, TID
Sildenafil medium dose
Sildenafil 40 mg, oral, TID
Sildenafil high dose
Sildenafil 80 mg, oral, TID
RECRUITING
University of Pennsylvania, Philadelphia
Walter Reed National Military Medical Center
FED
University of Pennsylvania
OTHER