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Validation of the Zigzag Tracking Task Test for the Evaluation of Handwriting Difficulties in Writer's Cramp

NCT02882295 · Status: TERMINATED · Type: OBSERVATIONAL · Enrollment: 23

Last updated 2022-04-14

No results posted yet for this study

Summary

Writer's cramp (WC) is a task specific dystonia that occurs from the moment patient starts writing. It leads to partial or complete inability to use the hand only during the handwriting gesture. It is characterized by the appearance of cramps or spasms of certain muscles of the hand and/or forearm.

Clinical scales currently use for the assessment of WC fail to accurately reflect changes in the characteristics of handwriting in response to treatments (Botulinum Neurotoxin injections and / or retraining therapy).

The Zigzag Tracking Task (ZZTT), easy to use in current practice provides useful information in terms of speed and precision of handwriting gesture. This timed handwriting test is to follow with a pen a zigzag path beset with obstacles to avoid. It permits to evaluate the time in seconds required to carry out the zigzag path and count the number of errors (output path and contacts with obstacles). The investigators propose to validate the ZZTT for the assessment of the handwriting gesture of WC.

Conditions

  • Dystonic Disorder

Interventions

OTHER

Validation of a handwriting scale

Sponsors & Collaborators

  • Fondation Ophtalmologique Adolphe de Rothschild

    lead NETWORK

Principal Investigators

  • Jean-Pierre BLETON, PhD · Fondation OPH A de Rothschild

  • Sophie SANGLA, MD · Fondation OPH A de Rothschild

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2016-07-05
Primary Completion
2017-11-15
Completion
2017-11-15

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02882295 on ClinicalTrials.gov