A Pilot Study of Lithium in Progressive Multiple Sclerosis

In progressive multiple sclerosis (MS), patients experience worsening disability through a combination of inflammatory and neuro-degenerative processes. To test whether low-dose lithium carbonate ameliorates disability accumulation in progressive MS, patients with progressive MS were randomly assigned to take lithium in either the first or second year of a two-year trial. The trial was designed as a cross-over study to maximize exposure to lithium to for two reasons: 1) To increase the number of persons with MS exposed to lithium for purposes of assessing safety and tolerance; and 2) To increase the power to detect changes in the primary radiological outcome (change in brain volume) and also in secondary clinical outcomes (disability, mood, fatigue, cognition).