Motor Control During Rapid Eye Movement (REM) Sleep Behaviour Disorder

Status Terminated

Clinical Trial Summary

To compare the electrical activity of SubThalamic Nuclei (STN), by mean of local field potentials recordings, during the phasic behaviours of RBD with the electrical activity recorded at this level during the execution of voluntary movements during the "off" and the "on" phases in patients with RBD secondary to PD.

Clinical Trial Description

Patient with severe Parkinson's disease (PD) with motor fluctuations are akinetic and bradykinetic during the "off" phases. Their motor status dramatically improves during "on" phases, due to the effect of dopaminergic agents.

In the off phases, the plasmatic levels of dopaminergic drugs are the lowest. The plasmatic levels of dopaminergic drugs are also very low during nocturnal sleep.

Nevertheless, PD patients may show vigorous and rapid movements during REM Behaviour Disorder (RBD). Thirty-three to 46% of the patients with PD have RBD.

Akinesia and bradykinesia are the consequence of a hyperactivity of the SubThalamic Nuclei (STN). The electrophysiological correlate of this hyperactivity causing akinesia and bradykinesia is represented by STN beta activity, recorded by local field potentials.

STN beta activity is not present during the execution of a voluntary movement at an "on" phase. Levodopa therapy, which can revert akinesia and bradykinesia, also suppress STN beta activity in PD patients The STN is the surgical target for Deep Brain Stimulation (DBS) of the basal ganglia to improve the motor symptoms of PD.

The STN has bilateral connections with the laterodorsal nucleus/pedunculopontine tegmentum (LDT/PPN), a key structure for REM sleep regulation.

The investigators hypothesize that during the execution of the phasic motor behaviours of RBD the pattern of discharge of STN differs from the one observed during voluntary movements in the "off" phase, in PD patients. In other terms, we expect the STN beta activity to disappear during the execution of phasic motor behaviors of RBD. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01886131
Study type	Interventional
Source	University Hospital, Toulouse
Contact
Status	Terminated
Phase	N/A
Start date	June 2013
Completion date	July 2014

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Motor Control During Rapid Eye Movement (REM) Sleep Behaviour Disorder — RevesParkNST

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms