NCT07332299

Brief Summary

The goal of this clinical trial is to learn if combining brain stimulation with cognitive training can improve thinking skills in older adults who have had a traumatic brain injury (TBI). The main questions are:

  • Does transcranial direct current stimulation (tDCS) make cognitive training more effective for improving attention, memory, and decision-making?
  • Is this type of home-based program feasible and acceptable for older adults with TBI? Researchers will compare two groups: one group will receive active tDCS during cognitive training, and the other group will receive sham (placebo) tDCS during cognitive training. Participants will:
  • Complete computer-based cognitive training exercises (BrainHQ) to practice attention, memory, and decision-making.
  • Receive either active or sham tDCS during training sessions.
  • Complete assessments before and after the program to measure changes in thinking and daily functioning.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
16mo left

Started Jan 2026

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress19%
Jan 2026Sep 2027

First Submitted

Initial submission to the registry

September 17, 2025

Completed
4 months until next milestone

First Posted

Study publicly available on registry

January 12, 2026

Completed
3 days until next milestone

Study Start

First participant enrolled

January 15, 2026

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2027

Last Updated

January 12, 2026

Status Verified

January 1, 2026

Enrollment Period

1.6 years

First QC Date

September 17, 2025

Last Update Submit

January 8, 2026

Conditions

Keywords

AgingCognitive TrainingTranscranial Direct Current StimulationTraumatic Brain Injury

Outcome Measures

Primary Outcomes (2)

  • Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) Total Scale Score

    The RBANS is a commonly-used, psychometrically-sound measure of cognitive function across the lifespan. The primary outcome measure is the Total Scale score, which is a standard score (mean 100, SD 15) across five cognitive domains (Immediate/Delayed Memory, Visuospatial, Attention, Language).

    Baseline, 1-week post, & 6-weeks post intervention

  • Electroencephalogram (EEG) - Resting State Theta Band Functional Connectivity

    Resting State EEG will be collected to assess neural dynamics or functional connectivity and spectral power of delta,theta, alpha, beta, and gamma frequency bands. The primary outcome measure will be change in prefrontal-parietal functional connectivity in the theta frequency band.

    Baseline, 1-week post, & 6-weeks post intervention

Secondary Outcomes (5)

  • Neurobehavioral Symptom Inventory (NSI) Total Score

    Baseline, 1-week post, & 6-weeks post intervention

  • Insomnia Severity Index (ISI) Total Score

    Baseline, 1-week post, & 6-weeks post intervention

  • Patient Health Questionnaire-8 (PHQ-8) Total Score

    Baseline, 1-week post, & 6-weeks post intervention

  • Groton Maze Learning Task (GMLT) Completion Time

    Baseline, 1-week post, & 6-weeks post intervention

  • NIH Toolbox Quality of Life Assessment (NeuroQoL)

    Baseline, 1-week post, & 6-weeks post intervention

Study Arms (2)

Active tDCS with cognitive training

EXPERIMENTAL

Participants will receive 10 sessions of cognitive training concurrent with transcranial direct current stimulation (45 minutes of cognitive training with tDCS applied for first 20 minutes of session; tDCS: 2mA, 30s ramp up/down, anode at F3, cathode at F4).

Combination Product: Active tDCS and Cognitive Training Intervention

Sham tDCS with cognitive training

SHAM COMPARATOR

Participants will receive 10 sessions of cognitive training concurrent with sham transcranial direct current stimulation (45 minutes of cognitive training with sham tDCS: 2mA current will be ramped down immediately after the initial 30s ramp up period and then at 20 minutes ramped up and down as done at the beginning, anode at F3, cathode at F4).

Combination Product: Sham tDCS and Cognitive Training Intervention

Interventions

Forty-five minutes of cognitive training concurrent with 2 mAmps of anodal stimulation applied to the left frontal cortex for the first 20 minutes of the session.

Also known as: tDCS
Active tDCS with cognitive training

Forty-five minutes of cognitive training concurrent with sham tDCS (30 secs ramp up/ramp down of current at beginning and end of session).

Also known as: sham tDCS
Sham tDCS with cognitive training

Eligibility Criteria

Age65 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • Veterans age 65 and older.
  • History of mild TBI (as defined by the DOD/VA criteria used in conjunction with the OSU TBI-ID) sustained at least 3 months prior to enrollment.
  • Self-reported or medically documented attention and/or concentration difficulties.
  • Stable dose of all prescription and non-prescription medications that may impact cognition or brain chemistry (except for PRN medication) for at least 3 weeks prior to the baseline session (Visit 1), in the medical opinion of the principal investigator.
  • Capable and willing to provide voluntary informed consent, in the medical opinion of the principal investigator.

You may not qualify if:

  • Presence of a medical, psychiatric, physical or non-physical disease, disorder, condition, injury, disability or pre-existent history such that study participation, in the opinion of the principal investigator: (a) may pose a significant risk to the participant, (b) raises the possibility that the participant is unlikely to successfully complete all the requirements of the study according to the study protocol, or (c) might adversely impact the integrity of the data or the validity of the study results. Specific conditions include (but are not limited to) a history of brain tumor near the stimulation site, brain surgery, stroke with current sequalae, epilepsy, multiple sclerosis, Huntington's Disease, ALS, ataxia, aphasia, Alzheimer's Disease, and dementia.
  • Moderate to severe cognitive impairment with MoCA score (assessed upon enrollment) less than 15.
  • Prior treatment with ECT or neuromodulation in the last 12 months.
  • Current severe alcohol or substance use disorder with evidence of withdrawal or tolerance within the past 6 months, based on psychiatric history and/or a review of available medical records.
  • Psychosis or mania within 30 days of enrollment, as determined by the principal investigator, based on psychiatric history and/or a review of available medical records.
  • Contraindications for tDCS (e.g., metallic cranial plates/screws or implanted device, eczema or skin lesions on scalp near electrode site, etc.).
  • No or limited internet connection in their home.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Minneapolis VA Health Care System

Minneapolis, Minnesota, 55417, United States

RECRUITING

MeSH Terms

Conditions

Brain Injuries, Traumatic

Interventions

Transcranial Direct Current Stimulation

Condition Hierarchy (Ancestors)

Brain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and Injuries

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsConvulsive TherapyPsychiatric Somatic TherapiesBehavioral Disciplines and ActivitiesElectroshockPsychological Techniques

Central Study Contacts

Casey S Gilmore, PhD

CONTACT

Laura Hemmy, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
FED
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

September 17, 2025

First Posted

January 12, 2026

Study Start

January 15, 2026

Primary Completion (Estimated)

September 1, 2027

Study Completion (Estimated)

September 1, 2027

Last Updated

January 12, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations