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Clinical Trial Summary

Vitamin D repletion is important for bone health in patients with Crohn's disease. While repletion strategies in the general population yield similar results in those with Crohn's disease, maintenance strategies are variable. High quality evidence is lacking to determine the optimal strategy to maintain adequate levels of Vitamin D levels in patients with Crohn's disease.


Clinical Trial Description

The investigators seek to identify patients with Crohn's disease in clinical remission who have vitamin D levels <30 ng/ml. Subjects will undergo a 8 week lead in period and receive Vitamin D supplementation with 50,000 IU D2 weekly for 8 weeks.Participants with sufficient Vitamin D levels after 8 weeks (>30 ng/mL) will be enrolled into the study and randomized to one of three arms: (1) placebo (2) 1000 IU/day Vitamin D3 (3) 5,000 IU/day Vitamin D3 for 22 weeks. Based on clinical experience, doses higher than the recommended doses for bone health in the general population (600-800 IU/day Vitamin D3) are needed to achieve and maintain optimal levels of Vitamin D in people with Crohn's disease.

The investigators aim to determine optimal maintenance dosing to sustain vitamin D sufficiency in people with Crohn's disease. The investigators also seek to determine demographic and disease related characteristics associated with inability to maintain sufficient levels. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03615378
Study type Interventional
Source Cedars-Sinai Medical Center
Contact
Status Terminated
Phase Early Phase 1
Start date August 30, 2018
Completion date November 30, 2018

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