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A randomised controlled trial of intravenous immunoglobulin in IgM paraprotein associated demyelinating neuropathy

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Abstract.

This multicentre randomised double blind crossover trial tested the short term efficacy of intravenous immunoglobulin (IVIg) 2.0 g/kg given over 24 or 48 hours in patients with paraproteinaemic demyelinating neuropathy (PDN). Twenty-two patients were randomised and completed the trial. After 2 weeks, the overall disability grade decreased during both IVIg treatment and placebo but neither change was significant nor was the mean difference between the treatment effects. After 4 weeks the overall disability decreased by a mean of 0.55 [0.67] grades during the IVIg period (p = 0.001) while it was substantially unmodified during the placebo period. The mean difference between the treatment effects was significant (p = 0.05). Overall during the IVIg period 10 patients improved and 11 were stable and one got worse. During the placebo period 4 patients improved, 4 deteriorated and 14 were stable. Many secondary outcome measures, including Rankin scale, time to walk 10 metres, grip strength, sensory symptoms score were significantly better during IVIg treatment. Two serious adverse events occurred during the trial, both during placebo treatment. In conclusion the trial showed some short-term benefit of IVIg in about half of the patients confirming previous observation.

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Received: 6 August 2001, Received in revised form: 6 March 2002, Accepted: 12 March 2002

RID="*"

ID="*"The other members of the INCAT group are Jacques Aubry PhD, Institut de Biologie, INSERM Unit 463, 9 Quai Moncousu, 44 035 Nantes, France; Nicole Baumann MD, InSERM Unit 495, Salpetriere Hospital, 75 651 Paris, Cedex 13 France; Robert Hadden PhD, Michael Lunn, MD, Department of Neuroimmunology, Guy's, King's and St. Thomas' School of Medicine, Guy's Hospital, London SE1 9 UL, UK; Martin Knapp Phd, Personal Social Services Research Unit, London School of Economics and Political Science, Houghton Street, London WC2A 1AE, UK; Jean-Marc Léger MD, Pierre Bouche MD, Service d'Eplorations Functionelles de la Salpetriere, 47 Boulevard de l'Hospital, 75 651 Paris, Cedex 13, France; Radim Mazanec CSc, Charles University, 2nd Medical School, University Hospital, V uvalu 84, Prague 5, Czech Republic; Nicoletta Meucci MD, Institute of Clinical Neurology, University of Milan, Ospedale Maggior-Policlinico, via Sforza, 20 122 Milan, Italy; Frans van der Meché PhD, Department of Neurology, Erasmus Medical Center Rotterdam, dr. Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; and Klaus Toyka PhD, Universitat Würzburg, Josef-Schneider Strasse 2, 97 080 Würzburg, Germany

Correspondence to Giancarlo Comi, MD

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Comi, G., Roveri, L., Swan, A. et al. A randomised controlled trial of intravenous immunoglobulin in IgM paraprotein associated demyelinating neuropathy. J Neurol 249, 1370–1377 (2002). https://doi.org/10.1007/s00415-002-0808-z

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  • DOI: https://doi.org/10.1007/s00415-002-0808-z

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