Spastic ataxia composite (SPAXCOM): a scale to evaluate the progression of subjects with spasticity and ataxia
Background Current clinical scales that track disease progression are more tailored to spasticity or ataxia, with limited sensitivity to change. Objectives The aim was to develop a sensitive and valid scale specifically geared towards optimized sensitivity to change and adapted to patients presentin...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
November 2025
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| In: |
Movement disorders
Year: 2025, Jahrgang: 40, Heft: 11, Pages: 2476-2485 |
| ISSN: | 1531-8257 |
| DOI: | 10.1002/mds.70006 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1002/mds.70006 Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/mds.70006 
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| Verfasserangaben: | Cécile Di Folco, Charlotte Dubec-Fleury, Andreas Traschütz, Christoph Kessler, Selina Reich, Cynthia Gagnon, Isabelle Lessard, Xavier Rodrigue, Sirio Cocozza, Sara Satolli, Filippo M. Santorelli, Alexandra Durr, Anna Heinzmann, Bart P. van de Warrenburg, Ilse H.J. Willemse, A. Nazli Başak, Atay Vural, Bernard Brais, Stephan Klebe, Rita Horvath, Prospax Consortium, Rebecca Schüle, Matthis Synofzik, and Sophie Tezenas du Montcel |
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| 245 | 1 | 0 | |a Spastic ataxia composite (SPAXCOM) |b a scale to evaluate the progression of subjects with spasticity and ataxia |c Cécile Di Folco, Charlotte Dubec-Fleury, Andreas Traschütz, Christoph Kessler, Selina Reich, Cynthia Gagnon, Isabelle Lessard, Xavier Rodrigue, Sirio Cocozza, Sara Satolli, Filippo M. Santorelli, Alexandra Durr, Anna Heinzmann, Bart P. van de Warrenburg, Ilse H.J. Willemse, A. Nazli Başak, Atay Vural, Bernard Brais, Stephan Klebe, Rita Horvath, Prospax Consortium, Rebecca Schüle, Matthis Synofzik, and Sophie Tezenas du Montcel |
| 264 | 1 | |c November 2025 | |
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| 500 | |a Online veröffentlicht: 20. August 2025 | ||
| 500 | |a Gesehen am 25.02.2026 | ||
| 520 | |a Background Current clinical scales that track disease progression are more tailored to spasticity or ataxia, with limited sensitivity to change. Objectives The aim was to develop a sensitive and valid scale specifically geared towards optimized sensitivity to change and adapted to patients presenting with both spasticity and ataxia. Methods Longitudinal data from 127 spastic paraplegia type 7 (SPG7) and 112 autosomal recessive spastic ataxia Charlevoix-Saguenay (ARSACS) patients were collected within the multicenter PROSPAX study. Sensitivity to change over 2 years of 30 items from the Scale for the Rating and Assessment of Ataxias (SARA), Spastic Paraplegia Rating Scale (SPRS), and the Activities of Daily Living subscale of the Friedreich's Ataxia Rating Scale (FARS-ADL) was evaluated. Items that demonstrated the highest sensitivity to change were used to build the Spastic Ataxia Composite scale (SPAXCOM). Results With seven items, the SPAXCOM showed an effect size of 0.71, higher than reference scales (SARA: 0.43, SPRS: 0.42, FARS-ADL: 0.27). The SPAXCOM had a similar sensitivity to change for both genotypes and was more sensitive in participants with a SARA lower than 10 and within the intermediate disease stage (FARS-Disease Staging: 2-3.5). The SPAXCOM showed a high correlation with disease duration (r = 0.67 [0.60; 0.72]) and disease stage (r = 0.86 [0.83; 0.89]). Perception of improvement, stagnation, and worsening were associated with a mean yearly SPAXCOM change of 0.44 (−0.14; 1.01), 0.61 (0.19; 1.03), and 1.22 (0.96; 1.49), respectively. Conclusion The SPAXCOM is more sensitive to change and homogeneous across genotypes than the reference scales, allowing a reduction of the required sample size in future clinical trials. © 2025 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society. | ||
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| 700 | 1 | |a van de Warrenburg, Bart P. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Willemse, Ilse H.J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Başak, A. Nazli |e VerfasserIn |4 aut | |
| 700 | 1 | |a Vural, Atay |e VerfasserIn |4 aut | |
| 700 | 1 | |a Brais, Bernard |e VerfasserIn |4 aut | |
| 700 | 1 | |a Klebe, Stephan |e VerfasserIn |4 aut | |
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