TerminatedNot Applicable

Effect of the Visual Information Change in Functional Dystonia

Stopped: lack of recruitment

France48 participantsStarted 2017-09-18

Plain-language summary

Cervical dystonia occurring only during the writing task is a rare form for which there is no established treatment. Many authors agree that alteration of sensory integration is associated with dystonia. Similar disturbances in the integration of oculomotor information could have a role in cervical dystonia forms involving visuo-cervico-manual coordination such as handwriting. We hypothesize that orthoptic treatment by wearing prisms when writing (i) will reduce the abnormal posture of the head occurring whilst writing and remove the associated nuchal pain; (ii) the correction after a period of systematic wearing of the prisms during handwriting tasks will have a sustainable effect allowing to keep a normal head position after the suppression of the prisms.

Who can participate

Age range

18 Years – 71 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: Case * Presenting a cervical dystonia that occurs only during handwriting tasks, diagnosed by a neurologist specialised in movement disorders * Being treated or not by injection of Botulinum Neurotoxin (but last injection \> 3 months before the initial assessment) Control * No cervical dystonia * Same sex, age (± 5 years), socio-professional level and hand laterality as the cases Exclusion Criteria: Case * Cervical dystonia occuring in other circumstances than handwriting * Neurological disease other than cervical dystonia (e.g. Parkinson's syndrome) * Pain, trauma or pathology of the cervical spine of another cause than cervical dystonia and which have required medical or surgical treatment in the last 6 months preceding the initial assessment Control * Cervical disorders requiring medical or surgical treatment in the last 6 months prior to the tests * Neurological disease affecting the cervical region or the writing hand * Uncorrected visual disorders

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

measure of head movement occurring when writing

Timeframe: 3 months

Trial details

NCT IDNCT03270189

SponsorFondation Ophtalmologique Adolphe de Rothschild

Sponsor typeNETWORK

Study typeINTERVENTIONAL

Primary completion2021-12-19

View on ClinicalTrials.gov More Dystonia trials