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Parkinson DiseasePARKMOTEURNCT03714854

Study of Motor Control Mechanisms in DBS-implanted Parkinson's Disease Patients

A study testing transcranial magnetic stimulation in people with Parkinson Disease, run by University Hospital, Grenoble at 1 site in France.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Akinesia is one of the most prominent symptom in Parkinson's Disease (PD) patients. It typically consists in a inability to initiate voluntary movement, and it affects patients' quality of life. Read more about this study

Who is it for?
Ages 30 to 80 years
Conditions the study is for
Parkinson Disease
What is being tested?
transcranial magnetic stimulation
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
6 participants
Where
1 siteFrance
Study dates
5 Dec 2018to 12 Feb 2021
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 30 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • PD patients that are monitored for the tuning of their DBS stimulator by Grenoble's Hospital.
  • PD patients that are hospitalized for the tuning routine 12 months after the surgical implantation.
  • Good tolerance following temporary stops of the DBS stimulator
  • Affiliated to a social security system
  • Mental abilities sufficient for performing the behavioral tasks (MMSE score >= 24, tested less than 6 months ago)

Who cannot join

  • Patients that are concerned by articles L1121-5, L1121-6, L1121-7 and L1121-8 of French Code de la Santé Publique,
  • History of psychiatric or neurological illness other than PD
  • Patients that are currently excluded from an other clinical trial
  • Contraindications for TMS practice
  • Inability to stay seated without pain for two hours
  • Pregnancy

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU de GRENOBLE ALPES

    Grenoble, 38043

Other trials in France

About this study

Akinesia is one of the most prominent symptom in Parkinson's Disease (PD) patients. It typically consists in a inability to initiate voluntary movement, and it affects patients' quality of life. This study aims at exploring the influence of Deep Brain Stimulation (DBS) in the quality of motor control, and particularly of voluntary movement initiation, and its neural correlates. They will be evaluated using behavioral and motor tasks together with Transcranial Magnetic Stimulation (TMS) and electrophysiology (EMG and EEG).

Medical subject headings
Parkinson Disease

What participants receive

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

  • transcranial magnetic stimulationDevice

    Also called electroencephalography, behavioral tasks, electromyography

    TMS will be delivered on the sensory-motor system and the inhibitory motor control network while patients are performing behavioral and motor tasks. Brain and muscle activity will be recorded concurrently using EEG and EMG respectively.

Study groups in NCT03714854
Study groupRoleWhat they receive
Deep brain stimulation ONActive comparatorPatients will undergo every experimental tasks with their DBS stimulator in ON and OFF positions. Order of ON/OFF conditions will be counterbalanced between patients.
Receives: Device: transcranial magnetic stimulation
Deep brain stimulation OFFPlacebo comparatorPatients will undergo every experimental tasks with their DBS stimulator in ON and OFF positions. Order of ON/OFF conditions will be counterbalanced between patients.
Receives: Device: transcranial magnetic stimulation

What is being measured

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

  1. Corticospinal excitability

    Corticospinal excitability is measured trough the amplitudes of TMS-evoked motor potentials recorded on the EMG at rest, and during the behavioral and motor tasks, in the two experimental conditions (DBS stimulator ON and OFF).

    Measured: 60 minutes

Secondary outcomes (3)
  1. Cortical excitability

    Cortical excitability is measured trough the amplitudes of TMS-evoked potentials recorded on the EEG at rest, in the two experimental conditions (DBS stimulator ON and OFF).

    Measured: 60 minutes

  2. Cortico-subcortical connectivity

    Cortico-subcortical connectivity will be assessed on EEG signal using paired stimulation between TMS and DBS.

    Measured: 20 minutes

  3. Correlation between behavioral and neural responses

    Behavioral outcomes (such as reaction time, performance index, etc.) will be compared with neural correlates described in outcomes 1 and 2 and 3.

    Measured: 60 minutes

Timeline

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

  1. First posted22 Oct 2018
  2. Study start5 Dec 2018
  3. Primary completion12 Feb 2021
  4. Study completion12 Feb 2021

Why it stopped: recruitment difficulties due to the loss of the engineer in charge of the TMS

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
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03714854
Sponsor's protocol ID
2017-A03016-47
Acronym
PARKMOTEUR
Status last verified
Jan 2023
First submitted
16 Oct 2018
Last updated
10 Jan 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing transcranial magnetic stimulation in people with Parkinson Disease, run by University Hospital, Grenoble 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 5 inclusion and 6 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: stopped early, as of the sponsor's last update on 10 Jan 2023. 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. Some participants in this study may receive a placebo. 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 was stopped early (reason given: recruitment difficulties due to the loss of the engineer in charge of the TMS). Results are not available in the source record.

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?

Corticospinal excitability (time frame: 60 minutes). 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 10 Jan 2023.

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