What this study is
The purpose of the study is to test whether low level electric stimulation, called transcranial Direct Current Stimulation (tDCS), on the part of the brain (i.e., presupplementary motor area) thought to aid in memory will improve verbal retrieval in military veteran participants with histories of traumatic brain injuries. The primary outcome measures are neuropsychological assessments of verbal retrieval, and the secondary measures are neuropsychological assessments of other cognitive abilities and electroencephalography (EEG) measures. Additionally, the study will examine the degree to which baseline assessments of cognition and concussion history predict responses to treatment over time, both on assessments administered within the intervention period and at follow-up.
What's being tested
- Transcranial direct current stimulation
Intervention · DEVICE
Transcranial direct current stimulation will be delivered via a Neuroelectrics Starstim tES. Stimulation will consist of 1 milliamp stimulation, with anodal stimulation delivered at electrode Fz (International 10/10 System for electroencephalography electrode placement) and electrodes F7, FP1, FP2, and F8 as returns. All electrodes are 1 cm diameter Ag/AgCl electrodes and make contact with the scalp via connective gel. Stimulation will linearly ramp up from 0 milliamps to 1 milliamp over 60 seconds, then remain at 1 milliamp of stimulation over 20 minutes, and finally ramping down at to 0 milliamps over 60 seconds.
- sham tDCS
Intervention · DEVICE
Sham transcranial direct current stimulation will be delivered via a Neuroelectrics Starstim tES. The sham setup will consist of anodal electrode Fz (International 10/10 System for electroencephalography electrode placement) and electrodes F7, FP1, FP2, and F8 as returns. All electrodes are 1 cm diameter Ag/AgCl electrodes and make contact with the scalp via connective gel. Stimulation will linearly ramp up from 0 milliamps to 1 milliamp over 60 seconds, ramp down to 0 milliamps over 60 seconds and then be left off for 20 minutes.
Study details
- Official title
- Treatment of Verbal Retrieval Deficits in Mild Traumatic Brain Injury With High Definition Transcranial Direct Current Stimulation
- Sponsor
- The University of Texas at Dallas
- Conditions
- Traumatic Brain Injury
- Enrolling
- 136 people
- Starts
- 2021-08-01
- Est. completion
- 2027-09-30
- Design
- Triple-blind, randomized, parallel groups
- Record
- View on ClinicalTrials.gov ↗
Who can join
Age 18 Years – 75 YearsSex ALLHealthy volunteers Not acceptedYou may qualify if
- Participants are to be between the ages of 18-75, have previously served in the US armed services, and have had a traumatic brain injury that has led to a verbal retrieval deficit based on neuropsychological testing criteria. Traumatic brain injury must be in the mild to moderate range based on evaluation, including, the Ohio State TBI Identification Method (administered by our research group). You must be fluent in speaking and reading English.
You can't join if
- Exclusion criteria include a history of a psychological or neurological disorder, including, dementia of any type, epilepsy or other seizure disorders, severe traumatic brain injury, post-traumatic stress disorder, brain tumor, present drug abuse, stroke, blood vessel abnormalities in the brain, Parkinson's disease, Huntington's disease, or multiple sclerosis. Additionally, exclusion criteria include inability to give informed consent; cranial implants or skull defects that affect tDCS administration; and use of medications that interact with or potentially interact with tDCS effects, including, anti-convulsants, amphetamines, L-dopa, carbamazepine, sulpiride, pergolide, lorazepam, rivastigmine, dextromethorphan, D-cycloserine, flunarizine, ropinirole, or citalopram.
Sign in and we'll check these against your records.Full criteria on ClinicalTrials.gov ↗
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Study locations (1)
1 openThe University of Texas at Dallas
Dallas, Texas, United States
- Ashna Adhikari · Contact972-883-3161neurolab.memory@utdallas.edu
- Tyler Vintila · Contact972-883-3161neurolab.memory@utdallas.edu
- Michael Motes, PhD · Sub-investigator
Recruiting
Study team
Sponsor
The University of Texas at Dallas
Study ID UTD-TDCSTBI-21-15
Principal investigator
John Hart, MD
The University of Texas at Dallas
Frequently asked questions
The sponsor hasn't published answers to common questions for this trial.