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New brain scans could sharpen diagnosis of lewy body dementia

NCT ID NCT00917709

Knowledge-focused Sponsor: University Hospital, Bordeaux 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study used special brain scans (SPECT imaging) to look at two key brain chemicals—acetylcholine and dopamine—in people with dementia with Lewy bodies. Researchers aimed to see if differences in these chemicals could help diagnose the disease and identify subtypes. The study included 34 participants and was completed, but it was an observational imaging study, not a treatment trial.

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 doctors better diagnose dementia with Lewy bodies and identify different types of the disease.
What could go wrong
This was a small, early-stage imaging study with only 34 participants, so results may not apply to everyone. It did not test a treatment.

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

34 people

The number who actually took part.

Start date

May 2009

Finished

Oct 2013

Lead sponsor

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

18 to 90 years

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: * Patients: man or woman probable DLB, with and without extrapyramida syndrome * Healthy subjects: man or woman with no neuropsychiatric disorders Exclusion Criteria: * Diagnostic or therapeutic irradiation during the 12 months before SPECT imaging * Age less than 18 and more than 90 * Iodine sensibility * Brain-vascular disease, severe brain injury, type I and II diabetes mellitus, thyroid dysfunction, chronic alcoholism * Pregnant and breast feeding women, women in age to procreate * Impossibility to undergo MRI study (pace-maker, claustrophobia) * Persons under guardianship, outside state to express their assent or in emergency situation * Healthy subjects: cognitive impairment, dementia

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Conditions

The condition(s) this trial relates to.

Lewy body dementia Lewy Body Disease

As listed by the trial registrant

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

Dementia with lewy bodies

Contacts and locations

Locations

  • Groupe Hospitalier Pellegrin - C.H.U. de Bordeaux

    Bordeaux, 33076, France

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