期刊
EUROPEAN JOURNAL OF NEUROLOGY
卷 29, 期 7, 页码 2047-2055出版社
WILEY
DOI: 10.1111/ene.15318
关键词
adverse drug event; clinically isolated CNS demyelinating syndrome; immunomodulation; multiple sclerosis; tumor necrosis factor inhibitors
资金
- Region of Stockholm [20200451]
This retrospective observational study examined the long-term outcomes of demyelinating events associated with TNFi. The results showed that only a minority of patients fulfilled the diagnostic criteria for multiple sclerosis (MS). Among those fulfilling the criteria, initiation of disease-modulating therapy was important to suppress further disease activity.
Background and purpose Demyelinating events are listed as adverse events with tumor necrosis factor alpha inhibitors (TNFi), but epidemiological studies have provided partly conflicting risk estimates. Furthermore, studies examining long-term outcomes of demyelinating events associated with TNFi are rare. Methods This was a retrospective, observational study comprising validation and tracking of long-term outcomes in patients referred to a tertiary neurology referral center for suspected neurological complications associated with TNFi. Results Of 48 patients evaluated, only 14 showed signs of demyelinating disease on magnetic resonance imaging, where six fulfilled criteria for a clinically isolated syndrome (CIS) and eight were diagnosed with multiple sclerosis (MS). However, 13 patients had received an International Classification of Diseases code for MS at some stage. Mean follow-up from referral was 13 and 10.5 years among subjects with MS and CIS, respectively. Continued disease activity was recorded among several of those fulfilling MS criteria, and two ultimately underwent autologous hematopoietic stem cell transplantation. In contrast, subjects with CIS showed no progression after cessation of TNFi. Conclusions Our findings suggest that only a minority of those with suspected demyelinating disease following TNFi fulfill diagnostic criteria for MS and that MS diagnoses among those not fulfilling MS criteria may contribute to inflated epidemiological risk estimates. Nevertheless, in those fulfilling MS criteria, initiation of disease-modulating therapy, with escalation as needed, was important to suppress further disease activity.
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