- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02840214
Impact of Transcranial Direct Current Stimulation on Fatigability and Fatigue Induced by a Selective Attention Task
June 28, 2017 updated by: University of Colorado, Denver
This research project is focusing on changes in mental fatigue due to transcranial direct current stimulation (tDCS) in healthy individuals.
The study aim is to see if mental fatigue can be rescued by administering a safe dose of tDCS.
tDCS has been shown to decrease fatigue in healthy individuals experiencing extended wakefulness, and the investigators aim to investigate if similar results can be found in a fatigue inducing task.
This is a single-blind randomized control trial that will compare mental fatigue between tDCS treatment and sham treatment groups through both subjective and objective measures.
Objective fatigue will be measured by reaction time with the Stroop test and subjective fatigue will be measured by the multidimensional fatigue inventory questionnaire.
Study Overview
Status
Withdrawn
Conditions
Intervention / Treatment
Detailed Description
Right handed healthy individuals aged 18-40 will be eligible to participate.
Participants will be randomized in a 1:1:1 ratio to receive real or placebo 2mA tDCS delivered for 20 minutes while performing a 3 hour computerized cued Stroop task.
Groups will receive real or sham stimulation during the first 20 minutes or 90-110 minutes into the task.
Groups will be: 1) Sham (sham given at both time points); 2) Prevent (real will be given during first 20 minutes to try to prevent or delay fatigue and sham given at second time point); or 3) Rescue (sham will be given initially and real given at 90-110 minutes to see if performance can be rescued after fatigue has set in).
The primary outcome measure will be the slope of change for intra-individual variability of response time for correct items and regression models will be used to determine whether real preventative or rescue tDCS alters the rate of performance change relative to sham stimulation.
Accuracy and mean response time will also be examined as secondary outcomes.
Study Type
Interventional
Phase
- Phase 1
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
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Colorado
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Aurora, Colorado, United States, 80045
- University of Colorado Denver
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 40 years (Adult)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
Inclusion Criteria:
- right-handed
- normal or corrected-normal vision,
Exclusion Criteria:
- pregnant women,
history of medical conditions associated with fatigue, including, but not limited to:
- Parkinson's disease,
- Alzheimer's disease,
- diabetes mellitus,
- hypothyroidism,
- chronic fatigue syndrome,
- anemia,
- infectious mononucleosis,
- irritable bowel syndrome
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: tDCS rescue group
Subjects assigned to this arm will receive transcranial direct current stimulation (tDCS) that delivers a constant, small current (2 milliAmp) across specific regions of the brain through electrodes placed on the scalp half-way through the 3-hour fatigue task.
|
Soterix tDCS RCT device given over left DLPFC for 20 minutes at 2mA.
Other Names:
|
Placebo Comparator: Sham Treatment Group
Subjects assigned to this arm will initially receive current of the same intensity for a period of 30 seconds and then gradually turned off.
|
Soterix tDCS RCT device given over left DLPFC with 30 second ramp on and off of current
Other Names:
|
Active Comparator: tDCS prevent group
Subjects assigned to this arm will receive transcranial direct current stimulation (tDCS) that delivers a constant, small current (2 milliAmp) across specific regions of the brain through electrodes placed on the scalp at the beginning of the task.
|
Soterix tDCS RCT device given over left DLPFC for 20 minutes at 2mA.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in cognitive performance fatigability
Time Frame: over 3 hours of a single fatigability task (one time visit study)
|
This will be measured by change in intraindividual variability of reaction time from the Stroop Fatigue Paradigm which will be quantified as the rate of change in mean reaction time over 3 hours modeled using linear regression.
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over 3 hours of a single fatigability task (one time visit study)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in perceived fatigue
Time Frame: Baseline then every 30 minutes for 3 hours
|
This will be assessed by visual analogue scale of fatigue performed at baseline and every 30 minutes of the task and the slope of change in perceived fatigue modeled using linear regression.
|
Baseline then every 30 minutes for 3 hours
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Benzi Kluger, MD, University of Colorado, Denver
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Primary Completion (Anticipated)
June 1, 2017
Study Registration Dates
First Submitted
June 27, 2016
First Submitted That Met QC Criteria
July 18, 2016
First Posted (Estimate)
July 21, 2016
Study Record Updates
Last Update Posted (Actual)
July 2, 2017
Last Update Submitted That Met QC Criteria
June 28, 2017
Last Verified
June 1, 2017
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 15-1035
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
YES
IPD Plan Description
Deidentified data may be released to other researchers upon request.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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