Brain scan study seeks clues to dystonia mystery
NCT ID NCT02727361
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how a specific brain chemical system (cholinergic) might be involved in dystonia, a condition causing muscle spasms and abnormal postures. Researchers used PET scans to measure chemical activity in the brains of 40 adults with a genetic form of dystonia (DYT1). The goal was to better understand the disease, not to test a treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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40 people
The number who actually took part.
- Started
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Jan 2016
- Finished
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Mar 2018
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Man or woman 18 to 75 years, with health insurance European health insurance card (for resident patients in EU), insurance by bilateral social security agreement signed between his country and France (for resident patients outside the EU) * Diagnosis of dystonia DYT1 confirmed by molecular biology (TORSINE- A gene mutation) * Patient who stopped his anticholinergic treatment 48 hours before imaging Exclusion Criteria: * Patients who underwent surgery for deep brain stimulation or under cholinergic treatment. * Presence of a counter-indication for MRI * Presence of a counter-indication for TEP Scan with \[18F\]-FEOBV * Woman premenopausal without effective ongoing contraception (intrauterine device or combined hormonal) * Patient who underwent a PET examination in the previous month * Presence of any health problem preventing travel to the imaging service of the University Hospital * Being under the legal guardianship of another person or being unable to provide consent to participate * Pregnant or breastfeeding woman
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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CHU de Bordeaux
Bordeaux, 33076, France
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Other studies related to the condition(s) this trial covers.
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