Oscillatory Activity in Basal Ganglia Circuits During Normal and Pathological Movement

NCT ID: NCT06241924

Last Updated: 2025-07-23

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

RECRUITING

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-05

Study Completion Date

2027-02-05

Brief Summary

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The expression of hypokinetic and hyperkinetic motor symptoms is accompanied by pathological synchronous oscillations of neuronal activity in this cortico-subcortical network with a wide frequency range.

The purpose of this research is to study cortico-subcortical oscillations and their synchronization in two pathologies emblematic of hypokinetic (Parkinson's disease) and hyperkinetic (epilepsies) phenomena using a simple motor task and comparing different situations.

Detailed Description

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In order to define the link between the characteristics of the oscillations (frequency, amplitude, phase relation) within this cortico-subcortical network and movement (normal or pathological) in humans, a simple motor task of gripping/pulling a lever has been designed.

The local field potentials (LFPs) will be collected during the same motor task in :

i) patients with Parkinson's disease, using a high-resolution electroencephalogram (EEG) and the PERCEPT(TM) system (Medtronic) equipped with a "sensing" function for deep LFP recordings and in EEG-HR (for high resolution) for cortical recordings

ii) patients with focal drug-resistant epilepsy, during a pre-surgical assessment by stereo-electro-encephalography (SEEG). The SEEG allows the recording of both the cortex and the subcortical regions in a concomitant manner, and a direct correlation can be studied.

Conditions

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Parkinson Disease Epilepsy

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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Epilepsy

Group Type EXPERIMENTAL

Stereo-electro-encephalography (SEEG)

Intervention Type PROCEDURE

Local field potentials (LFP) recording using sEEG

parkinson disease

Group Type EXPERIMENTAL

High Resolution Electroencephalogram (EEG-HR)

Intervention Type PROCEDURE

Local field potentials (LFP) recording using EEG-HR

Interventions

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High Resolution Electroencephalogram (EEG-HR)

Local field potentials (LFP) recording using EEG-HR

Intervention Type PROCEDURE

Stereo-electro-encephalography (SEEG)

Local field potentials (LFP) recording using sEEG

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Male or Female
* Between 18 and 75 years of age
* With Parkinson's disease and already operated with implantation of electrodes in the Subthalamic nucleus connected to a PERCEPT (TM) device.
* Giving free, informed, written consent signed by the participant and the investigator Or
* With drug-resistant epilepsy and benefiting from a phase II pre-surgical assessment with intracerebral electrophysiological exploration by stereo-EEG
* With at least one electrode exploring the basal ganglia or the thalamus.
* Able to perform the simple motor task
* Affiliated or beneficiary of a social security scheme;
* Giving free, informed, written consent signed by the participant and the investigator

Exclusion Criteria

* Be incapable of giving consent personally
* Be subject to a legal protection measure or be placed under judicial protection;
* Being pregnant or breastfeeding
* Present a serious and/or decompensated somatic or psychiatric illness
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Bordeaux

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jérôme AUPY, Docteur

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Bordeaux

Locations

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CHU de Bordeaux

Bordeaux, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Jérôme AUPY, Docteur

Role: CONTACT

05 56 71 43 33

Facility Contacts

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Jérôme Aupy

Role: primary

05 56 71 43 33

Olivier Branchard

Role: backup

05 57 82 06 97

Other Identifiers

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CHUBX 2022/80

Identifier Type: -

Identifier Source: org_study_id

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