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A Randomized, Double-blind, Placebo-controlled Study on Oral Vitamin D Megadoses - 100 000 or 200 000 IU Vitamin D3 Every Three Months
The purpose of this study is to determine if infrequent administration of oral vitamin D megadoses is effective treatment to maintain serum 25-hydroxyvitamin D(3) above target levels of 50-75 nmol/L. The investigators hypothesize that 100 000 IU or at least 200 000 IU vitamin D3 in every three months would be effective and safe treatment to achieve the target levels.
Details
| Lead sponsor | Helsinki University Central Hospital |
|---|---|
| Phase | Phase 4 |
| Status | COMPLETED |
| Enrolment | 60 |
| Start date | 2010-02 |
| Completion | 2011-05 |
Conditions
- Hypovitaminosis D
Interventions
- vitamin D3 (cholecalciferol)
- olive oil
- calcium carbonate
Primary outcomes
- Serum 25(OH)D3 concentration in relation to the target levels of 50-75 nmol/L — 12 months (including 9 time points)
Countries
Finland