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Clinical Course of Relapsing Remitting Multiple Sclerosis Post-Natalizumab

  • Maximillian D. J. Fiander (a1), Virender Bhan (a1) (a2), Samuel A. Stewart (a3) and Natalie E. Parks (a1) (a3)

Abstract:

Natalizumab is an efficacious disease modifying therapy (DMT) for relapsing remitting multiple sclerosis (RRMS), often limited by risk of progressive multifocal leukoencephalopathy. We describe the clinical course of RRMS patients switched from natalizumab to another DMT. We identified all RRMS patients treated with natalizumab ≥3 months with JC virus antibody positivity who switched to another DMT. Overall, 84 individuals switched DMT with 57 (68%) beginning fingolimod. On fingolimod, survival without a relapse was 74% (55.8–85.6%) at 36 months and survival without disease progression was 78% (62.6–87.6%) at 36 months. In conclusion, fingolimod is an effective therapy post-natalizumab.

L’évolution clinique de patients atteints de la forme cyclique de la sclérose en plaques ayant opté pour un traitement autre que celui au natalizumab. Le natalizumab est un médicament modificateur de l’évolution de la sclérose en plaques (MMSP) efficace pour le traitement de la sclérose en plaques récurrente-rémittente (SEP-RR), souvent limité par le risque de la leucoencéphalopathie multifocale progressive. Nous décrivons l’évolution clinique des patients atteints de SEP-RR qui sont passés du natalizumab à un autre MMSP. Nous avons identifié tous les patients atteints de SEP-RR ayant été traités avec le natalizumab ≥3 mois avec la positivité des anticorps anti-virus JC et ayant opté pour un autre MMSP. Globalement, 84 personnes ont changé de MMSP avec 57 (68%) ayant changé au fingolimod. Parmi les patients sous le fingolimod, la survie sans rechute était de 74% (55,8 à 85,6%) à 36 mois et la survie sans progression était de 78% (62,6 à 87,6%) à 36 mois. En conclusion, le fingolimod est une thérapie post-natalizumab efficace.

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Corresponding author

Correspondence to: Dr. Natalie Parks, Halifax Infirmary, Division of Neurology, Rm 3832, 1796 Summer Street, Halifax, NS, Canada. Email: nparks@dal.ca

References

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