Exploration of the Reward System by Functional MRI in Narco-cataplexy Patients With and Without REM Sleep Behavior Disorder

NCT ID: NCT03425214

Last Updated: 2018-02-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-01-19

Study Completion Date

2019-06-30

Brief Summary

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Up to 50% of Narcolepsy-cataplexy (NC) patients suffer from REM sleep behavior disorder (RBD), a parasomnia.

A strong link was found between RBD and impulse control disorders (ICD) in Parkinson disease (PD) patients. ICD are thought to be related to a dysfunction of meso-cortico-limbic pathways which belong to the so called ''reward system''.

A recent study in IRMf shows that RBD is associated with impaired reward system.

A strong link was found between these two disorders and therefore we believe that RBD is associated with impaired reward system in NC

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

The investigators hypothesize that NC patients with RBD have a more severe dysfunction of the reward system (hypoactivation of the meso-cortico-limbic pathway) than patients without RBD.

Detailed Description

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Type of study: Prospective, case control study.

Number of centers: 3 (Clermont-Ferrand, Vichy and Montlucon)

Patients :

The study will be performed in 66 subjects (22 PD patients with RBD, 22 PD patients without RBD and 22 healthy volunteers, age-and sex-matched without any contraindications to perform an MRI)

Study Performance :

During the first visit (Baseline, inclusion visit, 2 hours), each subject will perform a clinical and neurological examination 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 for a video Polysomnography in the sleep center, for one night (Month 1, 1 night) and in a subsequent visit at the MRI department for the functional MRI (Month 1, 1 hour). This session will be of about 45 minutes. The reward system will be explore using an experimental task during functional Magnetic Resonance Imaging (fMRI). The name of this task is the"monetary incentive delay task".

Conditions

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Narcolepsy Cataplexy

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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NC with RBD

fMRI and video polysmnography

Group Type EXPERIMENTAL

fMRI

Intervention Type OTHER

Session will be of about 45 minutes. The reward system will be explore using an experimental task during functional Magnetic Resonance Imaging (fMRI). The name of this task is the"monetary incentive delay task".

Videopolysomnography

Intervention Type OTHER

Video polysomnography will be perform in the sleep center during one night if patient did not have vPSG for 1 year.

NC without RBD

fMRI and video polysomnography

Group Type EXPERIMENTAL

NC (narcolepsy-cataplexy)

Intervention Type OTHER

The investigators hypothesize that NC patients with RBD have a more severe dysfunction of the reward system (hypoactivation of the meso-cortico-limbic pathway) than patients without RBD.

control group (healthy subjects)

fMRI

Group Type EXPERIMENTAL

fMRI

Intervention Type OTHER

Session will be of about 45 minutes. The reward system will be explore using an experimental task during functional Magnetic Resonance Imaging (fMRI). The name of this task is the"monetary incentive delay task".

Interventions

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fMRI

Session will be of about 45 minutes. The reward system will be explore using an experimental task during functional Magnetic Resonance Imaging (fMRI). The name of this task is the"monetary incentive delay task".

Intervention Type OTHER

Videopolysomnography

Video polysomnography will be perform in the sleep center during one night if patient did not have vPSG for 1 year.

Intervention Type OTHER

NC (narcolepsy-cataplexy)

The investigators hypothesize that NC patients with RBD have a more severe dysfunction of the reward system (hypoactivation of the meso-cortico-limbic pathway) than patients without RBD.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* \- Men or women, right handed, 18 to 80 years
* Patients with type 1 Narcolepsy according to the criteria of the International Classification of Sleep, 3rd version, 2014
* Acceptance of the protocol and signature of a written consent
* Social security affiliation

Exclusion Criteria

* Previous history of psychosis or psychiatric disease
* History of stroke or vascular lesion on MRI.
* Perceptual disorder (vision, hearing) may hinder the realization of the protocols,
* Dementia defined by a score across Montreal Cognitive Assessment (MoCA) \<26/30.
* Major depressive state defined by a score scale Beck Depression Inventory (BDI)\> 14
* Apathy defined by a score ≥ 14 on the Apathy Scale of Starkstein. Patients with a score ≥ this one will be excluded.
* Usual contraindications to MRI, knowing that no contrast agent injection is performed.
* Pregnant woman.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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CH MONTLUCON

UNKNOWN

Sponsor Role collaborator

Jacques Lacarin Hospital Center

OTHER

Sponsor Role collaborator

University Hospital, Clermont-Ferrand

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Maria-Livia FANTINI

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Clermont-Ferrand

Locations

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CHU Clermont-Ferrand

Clermont-Ferrand, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Patrick LACARIN

Role: CONTACT

04 73 75 11 95

Facility Contacts

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Patrick LACARIN

Role: primary

04 73 75 11 95

Other Identifiers

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2017-A01974-49

Identifier Type: OTHER

Identifier Source: secondary_id

CHU-375

Identifier Type: -

Identifier Source: org_study_id

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