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Published in: BMC Neurology 1/2014

Open Access 01-12-2014 | Research article

Neutralizing antibodies and fatigue as predictors of low response to interferon-beta treatment in patients with multiple sclerosis

Authors: Philippe Manceau, Clotilde Latarche, Sophie Pittion, Gilles Edan, Jérôme de Sèze, Catherine Massart, Marc Debouverie

Published in: BMC Neurology | Issue 1/2014

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Abstract

Background

The clinical impact of neutralizing antibodies against interferon-beta (NAb) is controversial. Their presence can lead to a decrease in interferon-beta (IFNβ) efficacy. Fatigue reported in patients with multiple sclerosis (MS) may be associated with an unfavorable clinical course. We conducted a prospective multicentre study to assess the association between response to IFNβ, NAb and fatigue.

Methods

Patients with relapsing-remitting MS on IFNβ treatment were included. During the second year of treatment, the patients were analyzed for NAb status and non-response criteria to IFNβ (number of relapses ≥1 during the follow-up period, increase in the Expanded Disability Status Scale ≥0.5). The score on the Modified Fatigue Impact Scale (MFIS pathological if score ≥35) was noted for each patient.

Results

Of the 176 patients included: 22.3% were NAb positive, 54.5% presented non-response criteria to IFNβ, and 57.4% had a pathological MFIS score. Fatigue was increased in NAb + patients (p = 0.0014) and they were more likely to present non-response criteria to IFNβ (p = 0.041) than NAb- patients. Multivariate logistic regression analysis showed that the presence of NAb was related to fatigue (p = 0.0032) and denoted disease activity in these patients (p = 0.026).

Conclusions

This study demonstrates the impact of NAb on the non-clinical response to IFNβ. Fatigue assessment is an indicator of IFNβ responsiveness and a predictive biomarker of deterioration on patient’s neurological status.
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Metadata
Title
Neutralizing antibodies and fatigue as predictors of low response to interferon-beta treatment in patients with multiple sclerosis
Authors
Philippe Manceau
Clotilde Latarche
Sophie Pittion
Gilles Edan
Jérôme de Sèze
Catherine Massart
Marc Debouverie
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BMC Neurology / Issue 1/2014
Electronic ISSN: 1471-2377
DOI
https://doi.org/10.1186/s12883-014-0215-y

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