Abstract
Background
Amyotrophic lateral sclerosis (ALS) is a fatal and incurable neurodegenerative disease. There is still no established cost-effective treatment that can improve functional status and survival of ALS patients. Perampanel, by inhibiting neuronal calcium ion influx and preventing dyslocalization of nuclear proteins, has the potential to ameliorate ALS neurodegeneration.
Objectives
This study aims to determine the efficacy and safety of perampanel among ALS patients in terms of improvement in functional status using a review of relevant studies.
Methods
MedLine, Cochrane Central Register for Controlled Trials, Scopus, Embase, Literatura Latino-Americana e do Caribe em Ciências da Saúde, ClinicalTrials.gov website, and HERDIN databases were searched from inception to August 2021 for relevant studies.
Results
The search yielded 132 articles; 3 studies were included in the analysis. Pooled evidence shows that perampanel compared to placebo significantly improves cortical motor hyperexcitability but not the ALS functional rating scale-revised score. Perampanel is associated with adverse events such as aggression, somnolence, anger, and dysarthria.
Conclusion
There is no sufficient evidence to support the role of perampanel in improving functional status of ALS patients. Although it can ameliorate motor cortical hyperexcitability, its clinical benefit has not yet been elucidated. Perampanel is not well tolerated among ALS patients as it is associated with adverse events such as aggression, somnolence, anger, and dysarthria. Further studies investigating the role of perampanel early in the ALS disease course, excluding ALS patients with frontotemporal lobe degeneration features and C9ORF72 repeat expansion, and using gradual drug titration schedule are needed to evaluate the potential benefit of perampanel in ALS.
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Turalde, C.W.R., Moalong, K.M.C., Espiritu, A.I. et al. Perampanel for amyotrophic lateral sclerosis: A systematic review and meta-analysis. Neurol Sci 43, 889–897 (2022). https://doi.org/10.1007/s10072-022-05867-6
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DOI: https://doi.org/10.1007/s10072-022-05867-6