期刊
JOURNAL OF THE NEUROLOGICAL SCIENCES
卷 342, 期 1-2, 页码 16-20出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jns.2014.01.038
关键词
Multiple sclerosis; Cognitive dysfunction; Disease-modifying therapies; Memory; Processing speed; Clinical trial
资金
- Vice Chancellor of Research at Mashhad University of Medical Sciences in Iran [84393]
Background: Multiple sclerosis (MS) is a chronic autoimmune disease that can deteriorate cognitive function in at least 50% of patients even in the early stages. Objective: We conducted a three-arm parallel study with balanced randomization to evaluate the effect of various disease-modifying therapies (DMTs) on cognitive function in MS. Methods: Ninety newly diagnosed, definite MS subjects referred to Ghaem Medical Center, Mashhad, Iran, were enrolled into this study between 2006 and 2009. They were randomly categorized into three DMT groups; Avonex, Rebif and Betaferon. Cognition status was assessed in MS patients at baseline and 12 months after treatment with DMTs using the 5 tests of the Brief Repeatable Battery of Neuropsychological Tests (BRB-N). Results: The Symbol Digit Modalities Test scores improved in all groups at 12 month vs. baseline (Avonex: 34.50 vs. 38.95, p = 0.011; Rebif: 35.30 vs. 40.13, p = 0.001; Betaferon: 26.18 vs. 2932, p = 0.029). The Selective Reminding Test (SRT)-Total, the 10/36-Delay, and the Paced Auditory Serial Addition Test-Easy were improved in Avonex and Rebif but not in Betaferon group. The SRT-Delay and Word List Generation were improved only in the Avonex group. There was no significant difference in other components of the BRB-N among these three treatment groups. Conclusions: Different types of DMTs may improve some aspects of cognitive function in patients with MS. Treatment with Avonex and Rebif (Interferon beta-la preparations) were more helpful in resolving the cognitive impairments in MS patients compared to Betaferon (Interferon beta-1b) as investigated in this study. (C) 2014 Elsevier B.V. All rights reserved.
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