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Multiple Sclerosis
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Article

Measuring and management of Anti-Interferon Beta Antibodies in subjects with Multiple Sclerosis

Rachel Farrell Gavin Giovannoni*

Department of Neuroimmunology, Institute of Neurology, London, UK

* To whom correspondence should be addressed.


  Abstract

Interferon Beta is well established as a first line agent to treat relapsing remitting Multiple Sclerosis. It frequently induces the formation of neutralising anti-Interferon Beta Antibodies (Nabs) which may abrogate the clinical efficacy of the drug. Numerous studies have shown a loss of bioactivity of the drug in the presence of Nabs. The focus has shifted to reliable quantification of Nabs and their appropriate incorporation into clinical practice. Here we review the development and persistence of Nabs, the effect on Interferon beta bioactivity, clinical and para-clinical autocome measures in trials, Nab assays and discuss management strategies to optimise the use of Interferon beta in relapsing remitting MS.

Key Words: Interferon-beta, neutralising antibody, biological treatment, bioassay, MxA bioassay, cytopathic effect assay

First published on February 16, 2007, doi:10.1177/1352458506073522

Multiple Sclerosis 2007;13:567.

A more recent version of this article appeared on June 1, 2007

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