Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Influence of the Vitamin D Blood Levels on the Amyotrophic Lateral Sclerosis Phenotype
Brief Summary: The main objective of this study is to investigate the correlation between the rate of motor decline and blood levels of Vitamin D total. Secondary objectives are to investigate the relationship between blood levels of vitamin D and total disease duration of ALS, forced vital capacity, weight loss, age of onset and the start site of ALS.