Journal
MULTIPLE SCLEROSIS AND RELATED DISORDERS
Volume 63, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.msard.2022.103894
Keywords
Multiple sclerosis; Disease modifying therapy; Safety; Pharmacovigilance; Treatment associated risk
Categories
Funding
- Biogen IDEC Limited [51975189]
- Merck SeronoFeltham, UK, an affiliate of Merck KGaA, an affiliate of Merck [NSFRF210408, T2022-4]
- National Natural Science Foundation of China [51975189]
- Fundamental Research Funds of Henan Polytechnic University [NSFRF210408]
- Innovative research team of Henan Polytechnic University [T2022-4]
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This study analyzed the risk of adverse events in multiple sclerosis (MS) patients receiving disease-modifying therapies (DMTs) through an observational study. It found that certain DMTs had a higher incidence of adverse events. This highlights the potential of routinely collected healthcare data to evaluate the safety of DMTs in real-world clinical practice.
Background: Clinical trial populations do not fully reflect routine practice. The power of routinely collected data to inform clinical practice is increasingly recognised. Methods: The OPTIMISE:MS pharmacovigilance study is a prospective, pragmatic observational study, conducted across 13 UK MS centres. Data were collected at the time of routine clinical visits. The first participant was recruited on 24th May 2019; data were extracted on 11th November 2021. Results: 2112 participants were included (median age 44.0 years; 1570 (72%) female; 1981 (94%) relapsingremitting MS). 639 (30%) were untreated at study entry, 205 (10%) taking interferon beta/copaxone, 1004 (47%) second/third generation DMT first line and 264 (13%) had escalated from a platform DMT. 342 clinical events were reported, of which 108 infections. There was an increased risk of adverse events in people taking second/third generation DMT (RR 3.45, 95%CI 1.57-7.60, p<0.01 vs no DMT). Unadjusted Poisson regression demonstrated increased incident adverse events in people taking natalizumab (IRR 5.28, 95%CI 1.41-19.74, p<0.05), ocrelizumab (IRR 3.24, 95%CI 1.22-8.62, p<0.05), and GA biosimilar (Brabio) (IRR 4.89, 95%CI 1.31-18.21, p<0.05) vs no DMT. Conclusions: Routinely collected healthcare data can be used to evaluate DMT safety in people with MS. These data highlight the potential of pragmatic studies to guide understanding of risks and benefits associated with DMT.
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