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Normal SubjectNEW MEGNCT04615637

Helium 4 Optically Pumped Magnetometers : a New Generation of Sensors for High Speed Functional Brain Imaging

A study testing MEG recordings in people with Normal Subject and Patient With Pharmaco-resistant Epilepsy, run by Hospices Civils de Lyon at 1 site in France.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Our goal is to perform a first evaluation of the capabilities of a new generation of non-invasive magnetoencephalography sensors (OPM He4) to record brain magnetic activities. The investigator will record 1) normal subjects stimulated with visual, auditory, somesthesic and motor stimuli and 2) epileptic patient. Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
What is being tested?
MEG recordings
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
45 participants
Where
1 siteFrance
Study dates
1 Mar 2021to 1 Jul 2023
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 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Volunteers:
  • Age 18+
  • Right handed
  • Medical insurance
  • Strongly motivated to participate to the study
  • Signed informed consent for the study
Show all 17Show fewer
  • No previous neurology or psychiatric pathologies
  • No major cognitive deficit and able to understand the instructions
  • Patients:
  • Age 18+
  • Right handed
  • Medical insurance
  • Strongly motivated to participate to the study
  • Signed informed consent for the study
  • No previous neurology or psychiatric pathologies (except epilepsy)
  • Epilepsy evolving during at least two years
  • No major cognitive deficit and able to understand the instructions

Who cannot join

  • Volunteers:
  • Age < 18 years or > 60
  • previous neurology or psychiatric pathologies
  • Child bearing women
  • Subject having one of the following mettalic parts :
  • (pacemaker, implentable pump, neurosimulator, chochlear implant, auditory prothesis, mettalic prothesis, intracerebral clip, implantable defibrilator, any mettalic parts in the brain or upper part of the body, ventriculoperitoneal valve)
Show all 14Show fewer
  • Claustrophobia Woman with a positive pregnancy test during the inclusion.
  • Patients:
  • Age < 18 years or > 60
  • previous neurology or psychiatric pathologies except epilepsy
  • Child bearing women
  • Subject having one of the following mettalic parts :
  • (pacemaker, implentable pump, neurosimulator, chochlear implant, auditory prothesis, mettalic prothesis, intracerebral clip, implantable defibrilator, any mettalic parts in the brain or upper part of the body, ventriculoperitoneal valve)
  • Claustrophobia Woman with a positive pregnancy test during the inclusion.

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hospices Civils de Lyon

    Bron, 69500

    Julien JUNG, MD, 04 72 35 79 00, julien.jung@chu-lyon.fr

Other trials in France

About this study

Our goal is to perform a first evaluation of the capabilities of a new generation of non-invasive magnetoencephalography sensors (OPM He4) to record brain magnetic activities. The investigator will record 1) normal subjects stimulated with visual, auditory, somesthesic and motor stimuli and 2) epileptic patient. The investigator will compare the signal to noise ratio of the normal or pathological activities between classical MEG sensors and our OPM He4 prototype.

Being tested
MEG recordings
Keywords
MEG, OPM, epilepsy, normal brain activity
Medical subject headings
Epilepsy

What participants receive

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

  • MEG recordingsDevice

    1. Classical MEG recordings (patient at rest, normal subjects stimulated with visual, motor, somesthesic and auditory stimuli).
    2. MEG recordings with our OPM He4 prototype (patient at rest, normal subjects stimulated with visual, motor, somesthesic and auditory stimuli).
Study groups in NCT04615637
Study groupRoleWhat they receive
SensorsExperimentalAll subjects will follow the same experimental procedure: a recording using classical MEG followed by a recording in the same condition with the OPM He4 prototype.
Receives: Device: MEG recordings

What is being measured

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

  1. Signal to Noise Ratio of the recorded brain activities

    Volunteers: The signal to noise ratio of normal brain activity following a stimulus will be computed with respect to the pre-stimulus baseline -100ms to -10 ms.

    Epileptic patient: The signal to noise ratio of abnormal epileptic brain activity will be computed with respect to a 100 ms baseline not containing any abnormal activity.

    Measured: 1 month

Secondary outcomes (4)
  1. Signal to Noise Ratio of pre-frontal auditory activity

    evaluate the capacities of MPO to record pre-frontal auditory activities which are not recorded by classical MEG. EEG will be the reference

    Measured: one month

  2. Signal to Noise Ratio of high frequency epileptic activity

    evaluate the capacities of our MPO to record high frequency epileptic signal which are not recorded by current generation of MPO

    Measured: one month.

  3. Comfort of the subject during the MPO He4 recordings for epileptic patient through a short verbal questionary

    The evaluation will be done verbally through a short questionary. This questionary evaluates the overall comfort of the MPO system with two questions: 1) An evaluation of the overall comfort thanks to a scale with five steps from very uncomfortable to very comfortable and 2) A comparison with the classical MEG system thanks to a 5 steps scale from much less comfortable than the classical MEG system to much more comfortable.

    Measured: 5 minutes after the end the recording session

  4. Comfort of the subject during the MPO He4 recordings for volunteers through a short verbal questionary

    The evaluation will be done verbally through a short questionary. This questionary evaluates the overall comfort of the MPO system with two questions: 1) An evaluation of the overall comfort thanks to a scale with five steps from very uncomfortable to very comfortable and 2) A comparison with the classical MEG system thanks to a 5 steps scale from much less comfortable than the classical MEG system to much more comfortable.

    Measured: 5 minutes after the end of each recording session

Timeline

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

  1. First posted4 Nov 2020
  2. Study start1 Mar 2021 (estimated)
  3. Primary completion1 Jul 2023 (estimated)
  4. Study completion1 Jul 2023 (estimated)

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
45 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04615637
Sponsor's protocol ID
69HCL20_0191
Other IDs
2020-A00634-35
Acronym
NEW MEG
Status last verified
Feb 2021
First submitted
8 Jul 2020
Last updated
16 Feb 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing MEG recordings in people with Normal Subject and Patient With Pharmaco-resistant Epilepsy, run by Hospices Civils de Lyon 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 17 inclusion and 14 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: status not confirmed, as of the sponsor's last update on 16 Feb 2021. 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?

Results are not available in the source record.

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

Contact Julien JUNG, MD (04.72.35.79.00, julien.jung@chu-lyon.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Signal to Noise Ratio of the recorded brain activities (time frame: 1 month). 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 Feb 2021.

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