Colecalciferol as an Add-on Treatment to Subcutaneously-Administered Interferon-beta-1b for Treatment of Multiple Sclerosis (MS) — 100207MS-H  

Multiple Sclerosis Clinical Trial

Official title: Phase IV Study of Colecalciferol as an Add-on Treatment to Subcutaneously Administered Interferon-beta-1b for Treatment of MS

Status Completed

Clinical Trial Summary

This is a one-year multi-centre, double blind, placebo controlled, randomized trial investigating oral vitamin D3 (Colecalciferol) as an add-on treatment to interferon-beta-1b for Multiple Sclerosis (MS). Not less than one month after initiation of therapy with interferon beta 1b, MS patients will be randomised to once weekly treatment with peroral colecalciferol capsules (Dekristol®, Swiss-Caps, Switzerland) containing 0.5 mg of vitamin D3, or to once weekly peroral treatment with matching placebo. The hypothesis is that vitamin D suppresses clinical and MRI activity of MS.

Clinical Trial Description

The patients will be examined clinically at baseline and at 6, and 12 months. Laboratory assessments will be performed at screening and 1, 2, 3, 6, 9 and 12 months after baseline. MRI will be performed (T1-weighted and T2-weighted) at randomization and 12 months thereafter. Sample size is 80 patients: two groups with 40 patients in each group. The primary statistical analyses will be based on the intent-to-treat (ITT) population which consist of all randomized patients who have started study medication. The primary efficacy variable MRI T2 BOD will be analyzed using ANCOVA with MRI T2 BOD at baseline as covariate. The incidence (with corresponding 95% confidence interval) of hypercalcaemia (mild, moderate and severe), laboratory abnormalities, dose adjustments, and significant adverse events will be calculated. The vitamin D status (proportion of patients with P-PTH <20 ng/l and S-OH(D)2 >85 nmol/l) at 6 and 12 months will be analyzed using logistic regression. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Multiple Sclerosis
• Sclerosis

• NCT number: NCT01432704
• Study type: Interventional
• Source: University of Turku
• Status: Completed
• Phase: Phase 2/Phase 3
• Start date: March 2008
• Completion date: August 2011