Drug Trial of Superoxide Dismutase in Duchenne's Muscular Dystrophy

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Abstract
• A multicenter, randomized, doubleblind, placebo-controlled drug trial in Duchenne's muscular dystrophy, evaluating a superoxide dismutase in 51 ambulatory patients for 18 months was conducted. Fourteen aspects of muscle strength and five of functional ability, as well as serum creatine phosphokinase (CPK) level were studied. The total change in strength, function, and CPK level did not differ significantly in the two groups. The testing method used was reliable in assessing the natural history of Duchenne's dystrophy and would, therefore, be useful in future multicenter drug trials.