Randomized trial of facilitated subcutaneous immunoglobulin in multifocal motor neuropathy

A. Al-Zuhairy*, J. Jakobsen, H. Andersen, S. H. Sindrup, L. K. Markvardsen

*Corresponding author for this work

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Background and purpose: To optimize subcutaneous therapy with immunoglobulins, large volume infusion of immunoglobulin G facilitated by pretreatment with hyaluronidase (fSCIG) was compared to conventional infusion of multiple small dosages (cSCIG) in 20 patients with multifocal motor neuropathy. Methods: A randomized, non-inferiority and observer-blinded cross-over design was applied with a treatment period of 24 weeks for each therapy. Results: In 18 patients fSCIG was feasible, two patients leaving the study due to side-effects. The primary study variable, isometric strength, was unchanged, being 100.8% [95% confidence interval (CI) 94.8%–107.1%) in fSCIG and 105.9% (95% CI 99.8%–112.0%) in cSCIG. Secondary end-points of disability, functions, impairments and quality of life showed no differences between the two treatments. Mild and short-lasting generalized side-effects were similar in the two groups, whereas the relative frequency of localized side-effects at the injection site was increased after fSCIG [0.63 (95% CI 0.23–1.00) vs. 0.09 (95% CI 0.00–0.22), P = 0.005]. The preference of the patients favoured fSCIG for two out of five visual analogue scale scores as well as the total mean score of all preferences (P = 0.03). Conclusions: Facilitated SCIG seems effective, feasible and safe. In addition, it is preferred by patients but is accompanied by a higher frequency of short-lasting localized side-effects.

Original languageEnglish
JournalEuropean Journal of Neurology
Issue number10
Pages (from-to)1289-e82
Publication statusPublished - Oct 2019


  • clinical trials randomized controlled
  • immunoglobulin
  • multifocal motor neuropathy
  • peripheral neuropathy
  • treatment


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