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ElectroencephalographyPhase 1MOTANANCT03362775

EEG Analysis During Light Propofol Sedation

A Phase 1 study testing Propofol in people with Electroencephalography, run by Central Hospital, Nancy, France 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 The sponsor has not verified this record for over two years, so it may be out of date.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

The hypothesis of this study is that propofol sedation does not affect the detectability of a movement intention in the EEG motor cortex signal. EEG signals will be recorded during the realization of intentional movements and movement intentions by the healthy volunteers, as well as during median nerve stimulation… Read more about this study

Who is it for?
Ages 18 to 28 years, men onlyHealthy volunteers can take part
Conditions the study is for
Electroencephalography
What is being tested?
Propofol
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteFrance
Study dates
1 Nov 2018to 31 Dec 2023
Phase
Phase 1
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 28 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy volunteers
  • Male
  • affiliated to French social security
  • normal physical examination
  • 22 < body mass index < 28

Who cannot join

  • Female
  • allergy to propofol or one of the emulsion compounds (soja, egg)
  • any pathology which may influence EEG recording or nerve conduction, such as diabetes, neuropathy, epilepsy, depression, psychotropic drug usage, drug usage)
  • any allergic reaction associated with anesthesia

Trial locations and contacts

1 site in 1 country.

France1 site, 1 recruiting
  • Department of Anesthesiology and Critical Care Medicine - University Hospital of Nancy

    Nancy, 54500

    Philippe Guerci, MD

    Recruiting

Other trials in France

About this study

The hypothesis of this study is that propofol sedation does not affect the detectability of a movement intention in the EEG motor cortex signal. EEG signals will be recorded during the realization of intentional movements and movement intentions by the healthy volunteers, as well as during median nerve stimulation before and during propofol perfusion according to a target control infusion. (0 µg/mL; 0.5 µg/mL and 1 µg/mL).

Read the detailed description

During an anesthesia, 0.1 to 0.2% of patients have an unexpected per-operative awakening, with the risk to have serious psychological consequences.

During a per-operative awakening, one of the first reflex of the patient is to move, but this is often not possible due to the use of neuromuscular blocking agents during the surgical procedure.

It is possible to detect a movement intention by analyzing the motor cortex EEG signal in awake volunteers. The same signal is present during light, non-painful median nerve stimulation.

The aim of this study is to determine wether this EEG signal can still be detected during light sedation by propofol, a drug commonly used during anesthesia. The investigators will include healthy male volunteers, who will make real movements, imagine a movement and have median nerve stimulations before and during a propofol infusion. The propofol will be infused according to a target controlled infusion with a effect-site concentration of 0.5 µg/mL and 1.0 µg/mL. Primary outcome is the detectability of event related desynchronization and event related synchronization in the EEG signal in the presence of propofol compared to the recordings without propofol

Being tested
Propofol

What participants receive

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

  • PropofolDrug

    Target-controlled infusion of propofol with an effect-site concentration of 0.0 µL/mL; 0.5 µL/mL and 1.0 µL/mL.

Study groups in NCT03362775
Study groupRoleWhat they receive
All subjectsOtherEEG will be recorded in all subjects before (0.0 µL/mL) and during a target controlled infusion of propofol (0.5 µL/mL and 1.0 µL/mL).
Receives: Drug: Propofol

What is being measured

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

  1. ERD/ERS amplitude

    Amplitude of event-related synchronization (ERS) and event-related desynchronization (ERD) will be recorded within 2 seconds of each motor task (real movement, imaginary movement) as well as median nerve stimulation. This amplitude will be compared tio the value recorded in the absence of propofol.

    Measured: 2 hours, during the experimentation

Secondary outcomes (2)
  1. Dose relationship between ERD/ERS and propofol concentration

    Investigators will analyze wether there is a relationship between the propofol concentration and the ERD/ERS.

    Measured: 2 hours, during the experimentation

  2. Detection ERS after median nerve stimulation

    Investigators will test wether an ERS is present during propofol infusion at the effect-site concentrations of 0.5 µL/ml and 1.0 µL/mL.

    Measured: 2 hours, during the experimentation

Timeline

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

  1. First posted5 Dec 2017
  2. Study start1 Nov 2018
  3. Primary completion30 Oct 2023 (estimated)
  4. Study completion31 Dec 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 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Model description
Every subject will have an EEG recording in the absence of propofol, or during light sedation with propofol at an effect-site target concentration of 0.5 µg/mL and 1.0 µg/mL. Each subject will be his own control.
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03362775
Sponsor's protocol ID
PSS 2017/MOTANA-SCHMARTZ/MS
Acronym
MOTANA
Status last verified
Feb 2023
First submitted
27 Nov 2017
Last updated
16 Feb 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Blokland YM, Farquhar JD, Mourisse J, Scheffer GJ, Lerou JG, Bruhn J. Towards a novel monitor of intraoperative awareness: selecting paradigm settings for a movement-based brain-computer interface. PLoS One. 2012;7(9):e44336. doi: 10.1371/journal.pone.0044336. Epub 2012 Sep 6.

    PubMed 22970202
  • Blokland Y, Farquhar J, Lerou J, Mourisse J, Scheffer GJ, Geffen GJ, Spyrou L, Bruhn J. Decoding motor responses from the EEG during altered states of consciousness induced by propofol. J Neural Eng. 2016 Apr;13(2):026014. doi: 10.1088/1741-2560/13/2/026014. Epub 2016 Feb 9.

    PubMed 26859192
  • Lindig-Leon C, Bougrain L. Comparison of sensorimotor rhythms in EEG signals during simple and combined motor imageries over the contra and ipsilateral hemispheres. Annu Int Conf IEEE Eng Med Biol Soc. 2015;2015:3953-6. doi: 10.1109/EMBC.2015.7319259.

    PubMed 26737159
  • Rimbert S, Schmartz D, Bougrain L, Meistelman C, Baumann C, Guerci P. MOTANA: study protocol to investigate motor cerebral activity during a propofol sedation. Trials. 2019 Aug 28;20(1):534. doi: 10.1186/s13063-019-3596-9.

    PubMed 31455386

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Propofol in people with Electroencephalography, run by Central Hospital, Nancy, France 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 4 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 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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 Philippe Guerci, MD (+ 33 3 83 15 39 39, p.guerci@chru-nancy.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

ERD/ERS amplitude (time frame: 2 hours, during the experimentation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03362775, which also lists 4 linked publications.

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 2023.

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