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Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ClinicalTrials.gov
Last refreshed on: 12 December 2020
Main ID:  NCT03615378
Date of registration: 16/07/2018
Prospective Registration: Yes
Primary sponsor: Cedars-Sinai Medical Center
Public title: Maintenance Dosing of Vitamin D in Crohn's Disease
Scientific title: A Randomized, Double Blind, Placebo Controlled Trial Evaluating Optimal Maintenance Strategies of Vitamin D Levels in Patients With Crohn's Disease in Remission
Date of first enrolment: August 30, 2018
Target sample size: 10
Recruitment status: Terminated
URL:  https://clinicaltrials.gov/show/NCT03615378
Study type:  Interventional
Study design:  Allocation: Randomized. Intervention model: Parallel Assignment. Primary purpose: Treatment. Masking: Double (Participant, Outcomes Assessor).  
Phase:  Early Phase 1
Countries of recruitment
United States
Contacts
Name:     GIl Y Melmed, MD, MS
Address: 
Telephone:
Email:
Affiliation:  Cedars-Sinai Medical Center
Key inclusion & exclusion criteria

Inclusion Criteria:

1. Diagnosis of Crohn's disease

2. In clinical remission as determined by the Harvey Bradshaw Index (CD) =4

3. 25(OH)D level <30 ng/ml within three months of study enrollment

4. Prior 25(OH)D level <30 ng/ml currently on repletion therapy

5. Provided written informed consent

6. 18 years of age or older

7. All maintenance therapies required to be on stable doses for 3 months.

Exclusion Criteria:

1. Unwilling to provide consent or lack capacity

2. Clinical disease activity (Harvey Bradshaw index >4)

3. Current pregnancy or attempting to conceive

4. Hypercalcemia (must have calcium level within 6 months of enrollment)

5. Known coexisting hyperparathyroidism

6. BMI >30 kg/m²

7. History of kidney stones

8. Subjects <18 years of age - pediatric population with different recommended dosing
than adults

9. Non-english speakers

10. Has an ileo-anal pouch or ileostomy

11. C-reactive protein greater than 2x the upper limit of normal

12. Lactose intolerant

13. Short gut syndrome

14. Renal insufficiency (CrCl <60 ml/min)

15. Concomitant therapy with thiazide diuretics, barbiturates, digitalis or supplemental
products containing vitamin D

16. Vitamin D levels <30ng/ml at completion of lead in



Age minimum: 18 Years
Age maximum: N/A
Gender: All
Health Condition(s) or Problem(s) studied
Crohns Disease
Vitamin D Deficiency
Intervention(s)
Dietary Supplement: Placebo
Dietary Supplement: 1000 IU D3
Dietary Supplement: 5000 IU D3
Primary Outcome(s)
Vitamin D serum level Vitamin D sufficiency [Time Frame: 22 weeks]
Secondary Outcome(s)
Time to Vitamin D Insufficiency [Time Frame: 22 weeks]
Secondary ID(s)
Pro50335
Source(s) of Monetary Support
Please refer to primary and secondary sponsors
Secondary Sponsor(s)
Ethics review
Results
Results available:
Date Posted:
Date Completed:
URL:
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