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Parkinson's DiseaseMP-TCSP-IRMfNCT02824341

Exploration of the Reward System by Functional MRI in Parkinson's Disease Patients With and Without REM Sleep Behavior Disorder

A study testing fMRI in people with Parkinson's Disease and REM Sleep Behavior Disorder, run by University Hospital, Clermont-Ferrand at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Up to 60% of Parkinson's Disease (PD) patients suffer from REM sleep behavior disorder (RBD), a parasomnia. This disorder is thought to be related to a dysfunction of limbic system and brainstem. Impulse control disorders (ICD) are found in about 14% of PD patients taking dopaminergic drugs. Read more about this study

Who is it for?
Ages 45 to 80 yearsHealthy volunteers can take part
What is being tested?
fMRI
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
104 participants
Where
1 siteFrance
Study dates
Oct 2015to Oct 2017
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 45 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Parkinson's disease (UK Parkinson's Disease Society Brain Bank Criteria)
  • men or women 45 to 80 years old
  • diagnosis of RBD made with polysomnographic recording

Who cannot join

  • Previous history of psychosis or psychiatric disease
  • History of stroke or vascular lesion on MRI.
  • pregnant women

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU Clermont-Ferrand

    Clermont-Ferrand, 63003

Other trials in France

About this study

Up to 60% of Parkinson's Disease (PD) patients suffer from REM sleep behavior disorder (RBD), a parasomnia. This disorder is thought to be related to a dysfunction of limbic system and brainstem.

Impulse control disorders (ICD) are found in about 14% of PD patients taking dopaminergic drugs. These disorders are thought to be related to a dysfunction of meso-cortico-limbic pathways which belong to the so-called "reward system".

Read more

A strong link was found between these two disorders and therefore the investigators believe that RBD is associated with impaired reward system.

The main objective of this study is to evaluate differences in brain activation between PD patients with and without RBD.

The investigators hypothesize that PD patients with RBD have a more severe dysfunction of the reward system (hypoactivation of the meso-cortico-limbic pathway) than patients without RBD, explaining their susceptibility to ICD when exposed to high doses of dopaminergic treatment.

Read the detailed description

Type of study: Prospective, case control study.

Number of centers: 2 (Clermont-Ferrand and Vichy)

Patients :

The study will be performed in 75 subjects (25 PD patients with RBD, 25 PD patients without RBD and 25 healthy volunteers, age-and sex-matched without any contraindications to perform an MRI)

Study Performance :

During the first visit (J0, inclusion visit, 3 hours), each subject will perform a clinical and neurological examination (MDS-Unified Parkinson Disease Rating scale (MDS-UPDRS)) and neuropsychological assessment (depression by the Beck Depression Inventory (BDI); apathy by the Lille Apathy Rating Scale (LARS), impulsivity by the Urgency, lack of Premeditation, lack of Perseverance, Sensation Seeking scale (UPPS)) Eligible patients will be welcomed in a subsequent visit at the MRI department for the functional MRI (J0+1week, 1 hour). This session will be of about 45 minutes. The reward system was explored using an experimental task during functional Magnetic Resonance Imaging (fMRI). The name of this task is the"monetary incentive delay task".

Being tested
fMRI
Keywords
Parkinson 's disease, REM sleep behavior disorder, Reward system, Functional MRI
Medical subject headings
Parkinson Disease, REM Sleep Behavior Disorder

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • fMRIDevice

Study groups in NCT02824341
Study groupRoleWhat they receive
Parkinson's disease patients with RBDOtherThe investigators hypothesize that PD patients with RBD have a more severe dysfunction of the reward system (hypoactivation of the meso-cortico-limbic pathway) than patients without RBD, explaining their susceptibility to ICD when exposed to high doses of dopaminergic treatment.
Receives: Device: fMRI
Parkinson's disease without RBDOtherThe investigators hypothesize that PD patients with RBD have a more severe dysfunction of the reward system (hypoactivation of the meso-cortico-limbic pathway) than patients without RBD, explaining their susceptibility to ICD when exposed to high doses of dopaminergic treatment.
Receives: Device: fMRI
Healthy volunteersOtherThe investigators hypothesize that PD patients with RBD have a more severe dysfunction of the reward system (hypoactivation of the meso-cortico-limbic pathway) than patients without RBD, explaining their susceptibility to ICD when exposed to high doses of dopaminergic treatment.
Receives: Device: fMRI

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. BOLD signal variation in each region of interest

    BOLD signal variation in each region of interest (ventral tegmental area, accumbens nucleus, limbic cortex, prefrontal cortex) at the time of realisation of fMRI.

    Measured: at week 1

Secondary outcomes (7)
  1. Reaction time to the task

    Measured: at week 1

  2. Performance score to the task

    Measured: at week 1

  3. Hoehn et Yahr score

    Measured: at week 1

  4. The Unified Parkinson Disease Rating scale (MDS-UPDRS) score

    Measured: at week 1

  5. The Beck Depression Inventory score

    Measured: at week 1

  6. The Lille Apathy Rating Scale score

    Measured: at week 1

  7. The impulsivity score by the Urgency

    Measured: at week 1

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jul 2016 (estimated)
  2. Study startOct 2015
  3. Primary completionJun 2017
  4. Study completionOct 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
104 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02824341
Sponsor's protocol ID
CHU-0270
Other IDs
2015-A00761-48
Acronym
MP-TCSP-IRMf
Status last verified
Mar 2018
First submitted
24 Jun 2016
Last updated
16 Mar 2018
Results posted
No

Questions about this trial

What is this clinical trial studying?

A study testing fMRI in people with Parkinson's Disease and REM Sleep Behavior Disorder, run by University Hospital, Clermont-Ferrand at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Mar 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

BOLD signal variation in each region of interest (time frame: at week 1). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Mar 2018; AzTrials last refreshed its copy on 7 Nov 2026.

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