ArticleNeurology and therapy2025
Comparative Effectiveness of Fumarates Versus Sphingosine-1-Phosphate Receptor Modulators in Black Patients with Multiple Sclerosis.
Article in Neurology and therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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13 authors.
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Abstract
introductionMultiple sclerosis (MS) is a heterogeneous disease that disproportionately impacts Black people with MS (PwMS), who experience more severe disease and higher relapse rates compared with non-Black populations. Despite widespread use of fumarates and sphingosine-1-phosphate (S1P) receptor modulators as oral disease-modifying therapies (DMTs) for relapsing MS, their comparative effectiveness in Black PwMS has not been studied. This study aims to help address this gap using real-world claims data.
methodsThis retrospective analysis using the Komodo Health Claims Database included Black PwMS. Patients were aged 18-64 years with ≥ 1 claim for MS diagnosis (International Classification of Diseases, Tenth Revision, Clinical Modification code G35) and ≥ 1 prescription claim for fumarates (dimethyl fumarate or diroximel fumarate) or an S1P receptor modulator (fingolimod, siponimod, ozanimod, or ponesimod) between January 2017 and April 2023. Outcomes included annualized relapse rate (ARR) and time to first relapse. Propensity score matching (2:1) and inverse probability weighting were used to balance baseline characteristics. Relapse events were identified using a claims-based algorithm.
resultsThe analysis included 1664 Black PwMS (1231 and 433 in fumarate and S1P treatment arms, respectively). Post-index ARRs were comparable between groups (rate ratio [RR] 1.18, p = 0.423). Kaplan-Meier analyses showed similar relapse-free proportions at 24 months (72.6% and 74.7% in fumerate and S1P populations, respectively; p = 0.152). These findings were consistent in both the propensity score-matched and inverse probability weighted populations.
conclusionsThis real-world, claims-based analysis demonstrates that fumarates and S1P receptor modulators have similar effectiveness in reducing relapses among Black PwMS, with > 72% of patients in both treatment groups remaining relapse-free at 24 months. Given the underrepresentation of Black patients in MS clinical trials, these results provide valuable real-world evidence to guide treatment decisions for this population.
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