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Objectively characterizing Huntington’s disease using a novel upper limb dexterity test

Woodgate, Samuel, Morgan-Jones, Philippa ORCID:, Clinch, Susanne, Drew, Cheney ORCID:, Playle, Rebecca ORCID:, Bennasar, Mohamed, Hicks, Yulia ORCID:, Holt, Catherine ORCID:, Bachoud-Lévi, Anne-Catherine, Massart, Renaud, Craufurd, David, Kirby, Nigel, Hamana, Katy ORCID:, Schubert, Robin, Reilmann, Ralf, Rosser, Anne ORCID: and Busse, Monica ORCID: 2021. Objectively characterizing Huntington’s disease using a novel upper limb dexterity test. Journal of Neurology 268 , pp. 2550-2559. 10.1007/s00415-020-10375-8

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Background: The Clinch Token Transfer Test (C3t) is a bi-manual coin transfer task that incorporates cognitive tasks to add complexity. This study explored the concurrent and convergent validity of the C3t as a simple, objective assessment of impairment that is reflective of disease severity in Huntington’s, that is not reliant on clinical expertise for administration. Methods: One-hundred-and-five participants presenting with pre-manifest (n = 16) or manifest (TFC-Stage-1 n = 39; TFC-Stage-2 n = 43; TFC-Stage-3 n = 7) Huntington’s disease completed the Unified Huntington’s Disease Rating Scale and the C3t at baseline. Of these, thirty-three were followed up after 12 months. Regression was used to estimate baseline individual and composite clinical scores (including cognitive, motor, and functional ability) using baseline C3t scores. Correlations between C3t and clinical scores were assessed using Spearman’s R and visually inspected in relation to disease severity using scatterplots. Effect size over 12 months provided an indication of longitudinal behaviour of the C3t in relation to clinical measures. Results: Baseline C3t scores predicted baseline clinical scores to within 9–13% accuracy, being associated with individual and composite clinical scores. Changes in C3t scores over 12 months were small (Ω ≤ 0.15) and mirrored the change in clinical scores. Conclusion: The C3t demonstrates promise as a simple, easy to administer, objective outcome measure capable of predicting impairment that is reflective of Huntington’s disease severity and offers a viable solution to support remote clinical monitoring. It may also offer utility as a screening tool for recruitment to clinical trials given preliminary indications of association with the prognostic index normed for Huntington’s disease.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Centre for Trials Research (CNTRR)
Additional Information: This article is licensed under a Creative Commons Attribution 4.0 International License
Publisher: Springer Verlag
ISSN: 0340-5354
Funders: MRC
Date of First Compliant Deposit: 8 January 2021
Date of Acceptance: 15 December 2020
Last Modified: 11 Oct 2023 21:19

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