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  • Title: Investigating the effects of 25-hydroxyvitamin D3 on clinical outcomes in multiple sclerosis patients: A randomized, double-blind clinical trial- a pilot study.
    Author: Maghbooli Z, Shirvani A, Moghadasi AN, Varzandi T, Hamtaei Ghashti S, Sahraian MA.
    Journal: Mult Scler Relat Disord; 2024 Jul; 87():105673. PubMed ID: 38759424.
    Abstract:
    BACKGROUND: The primary objective of this clinical trial was to assess whether administrating oral calcifediol (25(OH)D3) could enhance the clinical outcomes of patients diagnosed with multiple sclerosis. METHODS: This clinical trial was designed as a randomized, double-blind, two-arm study, with 25 participants receiving daily 50 μg of calcifediol and 25 people receiving daily 50 μg of cholecalciferol. The primary outcomes were serum levels of 25(OH)D3, number of relapses, changes in Kurtzke Expanded Disability Status Scale (EDSS), the 25-foot walk, and cognitive function. RESULTS: At the end of the trial, delta serum concentrations of 25(OH)D3 were 85.32±40.94 ng/ml in the calcifediol group compared to 13.72±11.56 ng/ml in the cholecalciferol group; 84 % of the calcifediol group and none of the cholecalciferol group had circulating 25(OH)D3 concentrations exceeding 70 ng/ml. While both groups showed an overall trend towards improved cognitive function at the end of the study, the calcifediol group exhibited greater improvements in most cognitive tests. However, the trial had no significant beneficial effects on MS relapse, EDSS score, quality of life, or fatigue in either group, the calcifediol or cholecalciferol. CONCLUSIONS: The trial shows that calcifediol is more effective in rapidly increasing 25(OH)D3 levels in MS patients compared to cholecalciferol when administrated at a similar dosage.
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