- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03537885
EEG Analytics to Determine Effectiveness of a tDCS Protocol
Development of an EEG Analytics Tool to Determine Effectiveness of a tDCS Protocol
Study Overview
Status
Conditions
Detailed Description
Transcranial direct current stimulation is a non-invasive neuromodulation technique that has been the subject of many recent investigations. There is a growing body of evidence to suggest that tDCS can enhance the efficacy of various therapies. However, progress in the field is slow: many studies suffer from reproducibility issues, or highly variable results, including stroke rehabilitation. It is feasible that much of the variance in experimental results can be explained by an inability to quantitatively track individual responses to tDCS in real-time, and personalize stimulation parameters for maximum effect.
Monitoring the brain via EEG while tDCS is being administered is a potential pathway to determine neurophysiological markers capable of forecasting the intensity of a subject's response to tDCS. This research has not previously been attempted due to technical difficulties- namely, the electromagnetic interference that is associated with tDCS degrades EEG signal quality. Recent advances in electrode and amplification technology have made it possible to make EEG recordings simultaneously with tDCS.
The investigators will attempt to determine whether specific EEG signatures can indicate the magnitude of a tDCS response. Subjects will receive either real or sham anodal tDCS to the hand representation of their left primary motor cortex.
The efficacy of the tDCS protocol will be quantitatively determined using transcranial magnetic stimulation (TMS) to generate a motor-evoked potential (MEP) in the hand pre- and post-tDCS. Additionally, prior to, during, and following the tDCS protocol, we will record EEG event-related potentials (ERPs) in response to a finger-tapping (motor) task.
The investigators aim to draw a correlation between the magnitude of MEP changes and pre- and post-tDCS and changes in recorded ERPs before, during and after tDCS in order to quantify the response to tDCS over the motor cortex. If EEG metrics can be used to gauge efficacy in real-time during tDCS administration, the investigators will gain significant insight into how to appropriately and quantitatively individualize tDCS dosage parameters for each patient.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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New York
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White Plains, New York, United States, 10605
- Burke Medical Research Institute
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Neurologically healthy
Exclusion Criteria:
- Ongoing use of CNS-active medications
- Ongoing use of psychoactive medications, such as stimulants, antidepressants, and anti-psychotic medications
Presence of a potential tDCS/TMS Risk Factor:
- Damaged skin at the site of stimulation (i.e. skin with ingrown hairs, acne, razor nicks, wounds that have not healed, recent scar tissue, broken skin, etc)
- Presence of an electrically, magnetically or mechanically activated implant (including cardiac pacemaker), an intracerebral vascular clip or any other electrically sensitive support system
- Metal in any part of the body, including metal injury to the eye (Jewelry must be removed during stimulation)
- A history of medication-resistant epilepsy in the family
- Past history of seizures or unexplained spells of loss of consciousness
Study Plan
How is the study designed?
Design Details
- Primary Purpose: DIAGNOSTIC
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: TMS, EEG, and tDCS Group
Participants will wear a cap fitted with Electroencephalography (EEG) electrodes to detect the brain's activity during the task. Transcranial Magnetic Stimulation will be used to evaluate the brain's responsiveness to Transcranial Direct Current Stimulation. All study participants will receive the same study procedures - TMS, tDCS, and EEG. |
Electrodes are placed on that head to deliver a non-invasive brain stimulation to the target area.
A coil is held tangential to the head in order to deliver a non-invasive brain stimulation to the target area.
A cap is placed on the head with sensors to detect brain activity during the intervention.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Motor Evoked Potential
Time Frame: Within session
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A measure of the muscle's responsiveness to non-invasive stimulation.
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Within session
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- BRC493
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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