PML-IRIS during Fingolimod Diagnosed after Natalizumab Discontinuation

Autor: J. Killestein, A. Vennegoor, A. E. L. van Golde, R. L. J. H. Bourez, M. L. B. Wijlens, M. P. Wattjes
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Case Reports in Neurological Medicine, Vol 2014 (2014)
Druh dokumentu: article
ISSN: 2090-6668
2090-6676
65294297
DOI: 10.1155/2014/307872
Popis: Background. Natalizumab treatment is frequently discontinued and replaced by alternative medication in multiple sclerosis (MS) patients having a high risk of progressive multifocal leukoencephalopathy (PML). Case Presentation. We report a PML case that was missed on magnetic resonance imaging (MRI) at the time Natalizumab treatment was discontinued. The patient subsequently developed a PML-immune reconstitution inflammatory syndrome after the initiation of Fingolimod treatment, suggesting that immune reconstitution may occur even during Fingolimod induced lymphopenia. Conclusion. This report highlights the need for strict drug surveillance using MRI of Natalizumab-associated MS patients at the time of drug discontinuation and beyond. This is important with respect to pharmacovigilance purposes not only for Natalizumab, but also for alternative drugs used after Natalizumab discontinuation.
Databáze: Directory of Open Access Journals