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Clinical Trial Summary

Vitamin D deficiency (defined as 25(OH)-vitamin D serum level <50 nmol/l) is cured with oral supplementation. National guidelines recommend the administration of 800 IU cholecalciferol daily for an effective treatment, especially during the winter (poor sun exposition). Cumulative intermittent administration monthly (24'000 IU) or weekly (5'600 IU) is possible. Commercially available intermittent pharmaceutical forms in Switzerland are liquid (oily or alcoholic solution). The study aims to compare the rise of vitamin D3 levels after treatment between newly developed soft capsules and monthly solution (primary outcome), and to evaluate the effect of a loading dose (without infringing the cumulative maximal dose of 4'000 IU per day) on the achievement of optimal values >75 nmol/l (secondary outcome). The investigators will use newly developed soft capsules and alcoholic solution, which are commercially available in Switzerland.


Clinical Trial Description

Group Control, Alcoholic Drinking Solution: 5 ml of an alcoholic drinking solution with 24'000 IU vitamin D p.o. once a month for 3 months (3 doses).

Group IMP, Capsules: one capsule with 24'000 IU vitamin D p.o. once a month for 3 months (3 doses).

Group IMP + loading dose, Loading Dose: one capsule with 24'000 IU vitamin D p.o. once a week during an individually calculated number of weeks.

All 3 groups: Measurement of vitamin D in serum before therapy and one week after the last dose. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03920150
Study type Interventional
Source University Hospital, Basel, Switzerland
Contact
Status Completed
Phase Phase 3
Start date September 30, 2019
Completion date May 31, 2020

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