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Mental FatigueNCT03366233

The Role of Brain Activation and Cerebral Blood Flow in Mental Fatigue.

A study testing Mental fatigue in people with Mental Fatigue and Healthy, run by Vrije Universiteit Brussel at 1 site in Belgium.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To assess the changes in brain activation and cerebral blood flow due to mental fatigue in a placebo-controlled study. More specifically we want to assess whether brain activation [measured with Blood Oxygen Level Dependent (BOLD) functional resonance imaging (fMRI)] is decreased during a Flanker task in a mentally… Read more about this study

Who is it for?
Ages 18 to 35 yearsHealthy volunteers can take part
Conditions the study is for
Mental Fatigue, Healthy
What is being tested?
Mental fatigue
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
1 siteBelgium
Study dates
1 Feb 2018to 9 Nov 2018
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 35 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy (No neurological/cardiorespiratory/psychological disorders)
  • No medication
  • Non-smoker
  • Between 18 and 35 years old

Who cannot join

  • Injuries
  • Illness
  • Pacemaker, neurostimulator, medication pump or metal implants
  • Use of medication or any kind of drugs
  • Use of alcohol, caffeine and heavy efforts 24 hours before each trial
  • Not eating the same meal the night before and the morning of each trial

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • Human Physiology and Sports Physiotherapy Research Group

    Brussels, (non-US), 1050

Other trials in Belgium

About this study

To assess the changes in brain activation and cerebral blood flow due to mental fatigue in a placebo-controlled study. More specifically we want to assess whether brain activation [measured with Blood Oxygen Level Dependent (BOLD) functional resonance imaging (fMRI)] is decreased during a Flanker task in a mentally fatigued state and whether this coincides with a decline in cognitive performance. In addition we also want to evaluate whether cerebral blood flow [measured with arterial spin labeled (ASL) fMRI] in a resting state is reduced when mentally fatigued.

Being tested
Mental fatigue, Control
Medical subject headings
Mental Fatigue

What participants receive

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

  • Mental fatigueOther

    A modified Stroop task of 90 min, partitioned in 8 blocks of 252 stimuli, will be used as mentally fatiguing task. The Stroop task requires inhibition and sustained attention on controlled processes.

  • ControlOther

    In the control task subjects will have to watch a documentary on the same computer screen as that used for the experimental trial. These documentaries are chosen based on their emotionally neutral, yet engaging content.

Study groups in NCT03366233
Study groupRoleWhat they receive
Mentally fatiguing taskExperimentalA modified Stroop task of 90 min, partitioned in 8 blocks of 252 stimuli, will be used as mentally fatiguing task.
Receives: Other: Mental fatigue
Control taskPlacebo comparatorIn the control task subjects will have to watch a documentary on the same computer screen as that used for the experimental trial for 90 min.
Receives: Other: Control

What is being measured

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

  1. Blood Oxygen Level Dependent - Signal during a 10-min cognitive task (i.e. Flanker task)

    Blood Oxygen Level Dependent - Signal will be measured during a 10-min Flanker task that will be completed immediately before and after the 90-min task (i.e. documentary in control trial; stroop task in intervention trial)

    Measured: Blood Oxygen Level Dependent - Signal will be measured during a 10-min Flanker task that will be completed immediately prior and after the 90-min task that is completed in both trials.

Timeline

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

  1. First posted8 Dec 2017
  2. Study start1 Feb 2018
  3. Primary completion9 Nov 2018
  4. Study completion9 Nov 2018

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
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03366233
Sponsor's protocol ID
MF-MRI
Status last verified
Oct 2019
First submitted
1 Dec 2017
Last updated
8 Oct 2019
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Van Cutsem J, Van Schuerbeek P, Pattyn N, Raeymaekers H, De Mey J, Meeusen R, Roelands B. A drop in cognitive performance, whodunit? Subjective mental fatigue, brain deactivation or increased parasympathetic activity? It's complicated! Cortex. 2022 Oct;155:30-45. doi: 10.1016/j.cortex.2022.06.006. Epub 2022 Jun 30.

    PubMed 35964356

Questions about this trial

What is this clinical trial studying?

A study testing Mental fatigue in people with Mental Fatigue and Healthy, run by Vrije Universiteit Brussel at 1 site in Belgium.

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 4 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: finished, as of the sponsor's last update on 8 Oct 2019. 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 Belgium. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Blood Oxygen Level Dependent - Signal during a 10-min cognitive task (i.e. Flanker task) (time frame: Blood Oxygen Level Dependent - Signal will be measured during a 10-min Flanker task that will be completed immediately prior and after the 90-min task that is completed in both trials.). 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 NCT03366233, which also lists 1 linked publication.

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 8 Oct 2019.

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