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Updates on Facioscapulohumeral Muscular Dystrophy (FSHD)

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Abstract

Purpose of review

This review aims to provide a summary of the pathophysiology, clinical presentation and management options for facioscapulohumeral dystrophy (FSHD). We discuss current management options and delve into updates about developments in targeted therapy.

Recent findings

New breakthroughs in FSHD research have led to a further understanding of aberrant DUX4 protein expression in the underlying pathophysiology of FSHD. This has paved the way for the development of targeted therapies aimed at targeting DUX4 expression or its downstream effects. Therapeutic strategies for FSHD primarily target DUX4 through three main avenues: small molecules, antisense oligonucleotide therapeutics and CRISPR-based approaches. This review discusses these strategies further. Presently, all prospective targeted therapies are in the pre-clinical phase, except for losmapimod, which is currently undergoing a phase 3 clinical trial.

Summary

Given the absence of approved disease-modifying treatments for FSHD, the primary approach for management currently involves multidisciplinary supportive measures which are limited. Recent developments in the form of targeted therapies and strategies for the definitive treatment of FSHD indicate a promising era.

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References and Recommended Reading

Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

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  1. Division of Neurology, Department of Medicine, National University Hospital, 5 Lower Kent Ridge Rd, Singapore, 119074, Singapore

    Amanda X. Y. Chin MBBS, MRCP, MMed, Zhi Xuan Quak MBBS, MRCP, MMed, Yee Cheun Chan MBBS, MRCP, FAMS, MHPE, Amy M. L. Quek MBBS, MRCP & Kay W. P. Ng MBBS, MRCP, MMed

  2. Division of Neurology, Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore

    Amanda X. Y. Chin MBBS, MRCP, MMed, Zhi Xuan Quak MBBS, MRCP, MMed, Yee Cheun Chan MBBS, MRCP, FAMS, MHPE, Amy M. L. Quek MBBS, MRCP & Kay W. P. Ng MBBS, MRCP, MMed

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A.C, Q.Z.X and K.N wrote the main manuscript. All authors reviewed the manuscript.

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Chin, A.X.Y., Quak, Z.X., Chan, Y.C. et al. Updates on Facioscapulohumeral Muscular Dystrophy (FSHD). Curr Treat Options Neurol 26, 261–275 (2024). https://doi.org/10.1007/s11940-024-00790-x

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