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Eye-Tracking sheds light on brain disorders

NCT ID NCT01495897

Knowledge-focused Sponsor: Institut National de la Santé Et de la Recherche Médicale, France Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This completed study used eye-tracking to explore how the brain adapts movements in people with dystonia, essential tremor, or Parkinson disease. Researchers measured eye movements before and after a task to look for signs of cerebellar dysfunction. The study included 14 participants and aimed to better understand these movement disorders.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

14 people

The number who actually took part.

Start date

Mar 2011

Finished

Mar 2014

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion criteria: * Age ≥18 years * -normal cognitive functions (\>24y) * Normal clinical examination of ocular mobility, visualization of the target * No drug potentially able to modify and to influence the data: anti-depressants, neuroleptics, anti-emetics, amphetamines, anti myoclonic/dystonic drugs, alcohol, dopaminergic drug, antiepileptic. * Dystonia or essential tremor or Parkinson: diagnostic made by a neurologist * For DYT11: mutation in SGCE gene. * For dystonia: No secondary dystonia * For Parkinson : UPDRS\<28 * No other neurological disorder For the patient having deep brain stimulation: * Duration of stimulation\> 6 months * Cerebral imagery post operation made * Stimulation parameter stable since 3 months at least. * Usual stop of the stimulation during the night Exclusion criteria: * Uncontrollable medical problems not related to M-D * Current active psychiatric disorder * Intake during the last 3 days of drugs potentially able to modify and to influence the data: anti-depressants, neuroleptics, anti-emetics, amphetamines, anti myoclonic/dystonic drugs, alcohol, dopaminergic drug * Subjects legally protected. * Subjects who are not enrolled at social security.

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Conditions

The condition(s) this trial relates to.

Dystonia dystonic disorder essential tremor idiopathic torsion dystonia Parkinson disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Dystonia Healthy Parkinson disease

Contacts and locations

Locations

  • : Fédération des Maladies du Système Nerveux

    Paris, 75013, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.