High-dose oral cholecalciferol (vitamin D3) supplementation significantly reduced disease activity in patients with clinically isolated syndrome (CIS) suggestive of multiple sclerosis (MS) in the randomized, controlled D-Lay MS trial.
“Combined with data from previous studies on vitamin D as an add-on therapy, the results of the D-Lay MS trial, which show a stronger effect of vitamin D in patients with vitamin D deficiency compared to others, strongly suggest that patients with vitamin D deficiency should be supplemented, regardless of whether they are already under disease-modifying therapy,” Eric Thouvenot, MD, PhD, University Hospital of Nimes, Neurology Department, Nîmes, France, told Medscape Medical News.
The study was published online on March 10 in JAMA.
Significant Reduction in Disease Activity
Vitamin D…