250
Participants
Start Date
June 1, 2022
Primary Completion Date
April 1, 2026
Study Completion Date
June 15, 2026
Hydrochloric Acid (2 M)
Hydrochloric acid (2 M) in a volume corresponding to dead space (0.3-1.8 ml) will be instilled and aspirated 10 min later; the instillation is completed 3 times.
Normal saline
Normal saline in a volume corresponding to dead space (0.3-1.8 ml) will be instilled and aspirated 10 min later; the instillation is completed 3 times.
RECRUITING
Department of Haematology, Copenhagen University Hospital, Copenhagen
RECRUITING
Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital, Copenhagen
RECRUITING
Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, Aarhus
RECRUITING
Department of Paediatrics and Adolescent Medicine, Odense University Hospital, Odense
Odense University Hospital
OTHER
Aarhus University Hospital
OTHER
Rigshospitalet, Denmark
OTHER