10
Participants
Start Date
February 9, 2023
Primary Completion Date
September 15, 2023
Study Completion Date
September 15, 2023
Theophylline Tablets
12 week oral treatment
Oslo University Hospital, Rikshospitalet, Department of Paediatric Cardiology, Oslo
South-Eastern Norway Regional Health Authority
OTHER
Norwegian Health Association
OTHER
Norwegian Association for Children with Congenital Heart Disease
UNKNOWN
Oslo University Hospital
OTHER