26
Participants
Start Date
September 5, 2019
Primary Completion Date
June 30, 2024
Study Completion Date
June 30, 2024
Sildenafil 40mg oral capsule
40 mg, sildenafil capsule taken by mouth thrice daily
Placebo Oral capsule
Placebo capsule taken by mouth thrice daily
Augusta University, Augusta
National Jewish Health, Denver
Augusta University
OTHER
Cystic Fibrosis Foundation
OTHER
National Jewish Health
OTHER