278
Participants
Start Date
March 24, 2015
Primary Completion Date
December 31, 2020
Study Completion Date
December 31, 2020
Cholecalciferol
One tablet per day. The duration of the intervention period is between 24-36 months. This is defined by the time of ATD treatment withdrawal, which is scheduled between approximately 12-18(-24) months after randomisation. Vitamin D supplementation will continue 12 months after withdrawal of ATD treatment or until relapse of Graves' Disease if this occurs prior.
Placebo
One tablet per day. Placebo tablet identical in appearance to cholecalciferol tablet. Duration and cessation of treatment identical to intervention with cholecalciferol.
Gentofte Hospital, Gentofte Municipality
Department of Internal Medicine, Regionshospitalet Herning, Herning
Department of Internal Medicine, Regionshospitalet Holstebro, Holstebro
Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus C
Department of Internal Medicine, Diagnostisk Center, Regionshospitalet Silkeborg, Silkeborg
Department of Internal Medicine, Regionshospitalet Horsens, Horsens
Department of Internal Medicine, Regionshospitalet Viborg, Viborg
Department of Internal Medicine, Regionhospitalet Randers, Randers
Aarhus University Hospital
OTHER
Regionshospitalet Silkeborg
OTHER
Regional Hospital Holstebro
OTHER
Regionshospitalet Horsens
OTHER
Randers Regional Hospital
OTHER
Regionshospitalet Viborg, Skive
OTHER
Herning Hospital
OTHER
University of Aarhus
OTHER