Your journey
1What's a trial
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More info
You can access this
clinical trial
if you have
Dystonic Disorder
and you are
between 18 and 70
years old
This is an observational trial.
You are contributing to medical knowledge about your condition.
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The purpose

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.

Provided treatments

  • Other: Validation of a handwriting scale
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Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT02882295. The sponsor of the trial is Fondation Ophtalmologique Adolphe de Rothschild and it is looking for 40 volunteers for the current phase.
Official trial title: