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Scientists scan brain of rare movement disorder patient in real time

NCT ID NCT06701851

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

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at brain activity in a person with a rare genetic condition called PRRT2 mutation, which causes sudden, uncontrollable movements. The participant will undergo brain scans (fMRI and EEG) during and after these episodes, and also when they voluntarily mimic the movements. The goal is to understand which brain areas are involved, especially the striatum and cerebellum, to learn more about the disorder.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could help scientists understand the brain mechanisms behind paroxysmal dyskinesia, potentially pointing toward future treatments.
What could go wrong
This is a very small, early-stage observational study with only one participant, so findings may not apply to others and may not lead directly to treatments.

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

About 1 person

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2025

Expected to finish

Oct 2029

An estimate. End dates often move.

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 to 75 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: Male or female Individuals with dystonic disease carrying a PRRT2 mutation and demonstrating the ability to control paroxysmal dyskinesia episodes. Affiliated with a health insurance system or a beneficiary of such a system. Individuals aged 18 to 75 years. Signature of informed consent Exclusion Criteria: Individuals under guardianship. Individuals not residing in France. Individuals unable to comply with protocol constraints (compliance with visit schedules and ability to perform required tasks). Individuals undergoing an exclusion period for another research study. Contraindications to MRI

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Conditions

The condition(s) this trial relates to.

choreatic disease Dyskinesias paroxysmal dyskinesia

As listed by the trial registrant

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

Paroxysmal dyskinesia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Institut du Cerveau de la Moelle Epinière ICM, Hôpital Pitié Salpêtrière,

    RECRUITING

    Paris, 75651 PARIS cedex 13, France