Journal
CLINICAL DRUG INVESTIGATION
Volume 42, Issue 4, Pages 355-364Publisher
ADIS INT LTD
DOI: 10.1007/s40261-022-01129-7
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- CAUL
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Disease reactivation following fingolimod cessation is more common in younger patients, those with greater disease activity prior to cessation, and in those who switch to low-efficacy therapy.
Background There is growing interest in the issue of disease reactivation in multiple sclerosis following fingolimod cessation. Relatively little is known about modifiers of the risk of post-cessation relapse, including the delay to commencement of new therapy and prior disease activity. Objective We aimed to determine the rate of relapse following cessation of fingolimod and to identify predictors of relapse following cessation. Methods Data were extracted from the MS Base registry in March 2019. Inclusion criteria were (a) clinically definite relapsing multiple sclerosis, (b) treatment with fingolimod for >= 12 months, (c) follow-up after cessation for >= 12 months, and (d) at least one Expanded Disability Status Scale score recorded in the 12 months before cessation. Results A total of 685 patients were identified who met criteria. The mean annualised relapse rate was 1.71 (95% CI 1.59, 1.85) in the year prior to fingolimod, 0.50 (95% CI 0.44, 0.55) on fingolimod and 0.43 (95% CI 0.38, 0.49) after fingolimod. Of these, 218 (32%) patients experienced a relapse in the first 12 months. Predictors of a higher relapse rate in the first year were: younger age at fingolimod cessation, higher relapse rate in the year prior to cessation, delaying commencement of new therapy and switching to low-efficacy therapy. Conclusions Disease reactivation following fingolimod cessation is more common in younger patients, those with greater disease activity prior to cessation and in those who switch to a low-efficacy therapy.
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