Clinical trials in multiple sclerosis.
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In this past year, there has only been modest progress in the search for an effective treatment for multiple sclerosis and its complications, although a number of carefully designed trials are in progress. No treatment predictably slows the course of active disease. The marginal benefits previously claimed for azathioprine have been strengthened by a meta-analysis of previously published work. Methylprednisolone may have a minor role in the treatment of very severe, acute optic neuritis but prednisone use may predispose patients to recurrent optic neuritis. 4-Aminopyridine and 3,4-diaminopyridine may prove useful for the symptomatic treatment of some multiple sclerosis patients; pemoline may be an alternative to amantadine for the control of fatigue; and acetazolamide may be an alternative to carbamazepine and phenytoin for the treatment of painful tonic spasms.