ArticleEuropean journal of neurology2025
Longitudinal Assessment of 4-Year HFMSE Changes in SMA II and III Patients Treated With Nusinersen.
Article in European journal of neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Ten years of disease-modifying therapy in spinal muscular atrophy: lessons learned and future directions.Nature reviews. Neurology · 2026Review
- Long-term persistence, safety and effectiveness of nusinersen in spinal muscular atrophy: a population-based study.Journal of neurology · 2026Observational
- A real-world, multicentre, epidemiological study in Czech and Slovak adults with spinal muscular atrophy treated with risdiplam.Scientific reports · 2026Article
- Serum creatinine outperforms the creatinine to cystatin C ratio and creatinine muscle index as biomarkers in Chinese pediatric spinal muscular atrophy.Frontiers in human neuroscience · 2026Article
- Longitudinal Assessment of 4-Year HFMSE Changes in SMA II and III Patients Treated With Nusinersen.European journal of neurology · 2025Article
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Authors and funding
35 authors.
Funding
Abstract
backgroundThe aim of this international retrospective study was to assess 4-year change using the Hammersmith Functional Motor Scale Expanded (HFMSE) in individuals with type II and III spinal muscular atrophy (SMA) treated with nusinersen and to establish predictors of HFMSE changes.
methodsIndividuals with type II or III SMA, and at least 4 years of nusinersen-only treatment were included. All were assessed using the HFMSE. Age at baseline, sex, motor function, SMN2 copy number, and age of onset were also retrospectively collected. Linear mixed effect models were used to calculate yearly changes and trajectory predictors.
resultsWe included 73 individuals with SMA type II (mean age 8.58 years, SD 7.91, IQR 3.04-10.70) and 111 type III (mean age 7.91 years, SD 17.83, IQR 8.15-34.42). Over 4 years, mean changes were + 4.18 (95% CI: 2.85-5.50) for SMA II and + 1.08 (95% CI: 0.12-2.04) for SMA III. Age (SMA II: -0.34\[-0.51 to -0.17]; SMA III: -0.13\[-0.20 to -0.06], p < 0.001) and baseline HFMSE (SMA II: 1.02\[0.70-1.34]; SMA III: 0.79\[0.71-0.87], p < 0.001) were the strongest predictors of progression, with younger age and higher baseline scores associated with better outcomes. Functional status was only predictive for type III (6.96\[4.26-9.66]).
conclusionOur results confirm that, given a follow up of 4 years, there is a persistent impact of nusinersen on clinical progression that is better observed in younger patients with higher HFMSE scores at baseline, especially during the first 2 years of treatment.
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