NCT03799458

Brief Summary

Aim 1: To use magnetoencephalography (MEG) and magnetic resonance imaging (MRI) in Veterans and civilians with mild traumatic brain injury (mTBI) and sensory postconcussive symptoms (PCS) to demonstrate the mechanism of therapeutic benefit of HD-tDCS for sensory symptoms, as shown by reliable changes in the activity of the cognitive control network (CCN) and sensory system network (SSN) following stimulation; Aim 2: this intervention will result in long-term improvements in measures of executive function, depression/anxiety, and quality of life.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
79

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 11, 2018

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

December 12, 2018

Completed
29 days until next milestone

First Posted

Study publicly available on registry

January 10, 2019

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 15, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 15, 2023

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

April 8, 2025

Completed
Last Updated

April 8, 2025

Status Verified

April 1, 2025

Enrollment Period

5.4 years

First QC Date

December 12, 2018

Results QC Date

January 3, 2025

Last Update Submit

April 7, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Postconcussive Sensory Symptoms

    The NSI is a validated scale of postconcussive symptoms; the Somatic Subscale score captures severity of physical symptoms such as tinnitus, blurry vision, loss of balance, and insomnia. (range 0-48; 0-12 mild; 13-24 moderate; 25-36 severe; 37-48 very severe)

    2 week visit

Secondary Outcomes (1)

  • Magnetoencephalography Peak Activation

    2 week visit

Study Arms (3)

Active Stimulation

ACTIVE COMPARATOR

Active HD-tDCS will be delivered while subjects perform sensory training tasks.

Device: Active High-definition transcranial direct current stimulation (HD-tDCS)

Sham Stimulation

SHAM COMPARATOR

Sham HD-tDCS will be delivered while subjects perform sensory training tasks.

Device: Sham High-definition transcranial direct current stimulation (HD-tDCS)

Imaging Only

NO INTERVENTION

40 subjects will undergo initial testing only as a healthy control group.

Interventions

Active HD-tDCS delivers active current through 2-10 electrodes held against the scalp with a lycra cap at specified 10-20 electroencephalography (EEG) coordinates.

Active Stimulation

Sham HD-tDCS delivers sham current through 2-10 electrodes held against the scalp with a lycra cap at specified 10-20 electroencephalography (EEG) coordinates

Sham Stimulation

Eligibility Criteria

Age18 Years - 59 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • are US Veteran or Active Duty Military personnel aged 18-59,
  • have suffered a mild TBI (alteration in neurological functioning \< 24 hours, loss of consciousness (LOC) less than 30 minutes, Glasgow coma scale (GCS) score (if available) of between 13 and 15 acutely, and less than 24 hours of post-traumatic amnesia (PTA));
  • were injured between 3 months and 15 years ago;
  • have post-traumatic sensory symptoms as evidenced by endorsing at least 2 out of 12 sensory symptoms on the Neurobehavioral Symptom Inventory (NSI), a measure of post-traumatic symptoms from the NIH Common Data Elements (CDE) to a severity of "3" or higher,
  • are fluent in English,
  • have been on stable doses of any psychotropic medications for the past 2 months.

You may not qualify if:

  • any history of moderate or severe TBI;
  • a prior history of other neurological disease or any history of seizures beyond immediate post-traumatic seizure, to as to reduce risk of exacerbation of epilepsy or other neurological symptoms;
  • history of psychosis, so as to reduce risk of psychiatric decompensation;
  • history of current or recent (within two years) substance/alcohol dependence, to reduce confounding effects on cognition and plasticity;
  • any discontinuity in skull electrical conductivity (i.e., unhealed burr holes in scalp) or artificially constructed (metal or plastic) craniotomy cover, to reduce risk of unimpeded electrical current;
  • presence of any implanted electrical device (e.g. pacemaker), to reduce risk of device malfunction;
  • recent medical hospitalization (within three weeks), to reduce risk of medical decompensation during the study;
  • any condition that would prevent the subject from completing the protocol; 9) appointment of a legal representative, as assessed via direct inquiry of the subject and a designated trusted other, to avoid coercion of a vulnerable population;
  • \) any significant blindness, to screen out peripheral sensory damage; 11) any significant deafness beyond mild hearing loss, to screen out peripheral sensory damage; 12) any ongoing litigation related to TBI, to prevent interference with legal proceedings; 13) any contraindication to MRI; 14) membership in an identified vulnerable population, including minors, pregnant women, and prisoners, so as to prevent coercion.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of New Mexico Health Sciences Center

Albuquerque, New Mexico, 87106, United States

Location

MeSH Terms

Conditions

Brain Concussion

Condition Hierarchy (Ancestors)

Brain Injuries, TraumaticBrain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemHead Injuries, ClosedWounds and InjuriesWounds, Nonpenetrating

Results Point of Contact

Title
Dr. Davin Quinn
Organization
University of New Mexico Health Sciences Center

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Masking Details
Active and sham HD-tDCS will be delivered with the same device, and participants and research technician are blinded to the condition.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: 120 subjects will be recruited for this study: 40 healthy controls subjects for the imaging-only group, and 80 mTBI subjects for the stimulation arm who have suffered mild TBI at least 3 months prior to study enrollment, but not more than 15 years prior to enrollment. The 80 mTBI subjects will be randomized to either active stimulation (40) or sham stimulation (40).
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 12, 2018

First Posted

January 10, 2019

Study Start

July 11, 2018

Primary Completion

November 15, 2023

Study Completion

November 15, 2023

Last Updated

April 8, 2025

Results First Posted

April 8, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will share

De-identified participant data, including demographic, neuropsychological, and imaging data, will be uploaded to FITBIR for use by TBI researchers, as specified by the grant sponsor.

Time Frame
Data will be uploaded to the Federal Interagency Traumatic Brain Injury Registry (FITBIR) at study termination.

Locations