Patti F, L'Episcopo MR, Cataldi ML, Reggio A. Natural interferon-beta treatment of relapsing-remitting and secondary-progressive multiple sclerosis patients. A two-year study.
Acta Neurol Scand 1999;
100:283-9. [PMID:
10536913 DOI:
10.1111/j.1600-0404.1999.tb00397.x]
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Abstract
OBJECTIVES
To evaluate clinical and MRI effects of natural interferon beta treatment in both relapsing-remitting (RR) and secondary-progressive (SP) multiple sclerosis patients.
MATERIAL AND METHODS
A double-blind, randomized trial of natural interferon beta (nIFN-beta) in 58 ambulatory patients with RR and 40 with SP multiple sclerosis. Forty-nine patients (29 RR and 20 SP) were treated with intramuscular nIFN-beta6 MIU three times a week for 24 months and 49 control patients were treated with placebo.
RESULTS
Primary clinical endpoints were differences in exacerbation rates and proportion of patients remaining exacerbation-free. There were no significant baseline differences between the treated and placebo groups. In the treated RR group a significant reduction in exacerbation rate, an increase in the probability of remaining exacerbation-free, and an improvement in mean EDSS were found at 24 months. MRI activity and total lesion burden were significantly reduced in treated RR patients. In the SP group, nIFN-beta produced a significant reduction in EDSS score, a significant reduction in active lesion number, a marginally significant favourable difference in total lesion burden but no significant effect on the number of gadolinium-enhancing lesions. Side effects were transient and mild in treated patients.
CONCLUSIONS
These observations confirm that nIFN-beta is a promising and well-tolerated treatment for either RR or SP MS patients.
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