Home-Based, Online, Mindfulness and Cognitive Training for Soldiers and Veterans With TBI (CogMind)

December 16, 2025 updated by: Posit Science Corporation
This study is a parallel arm, double-blind, randomized, controlled clinical trial to assess the safety and efficacy of an experimental software program designed to improve cognitive functions versus a computer-based software control. Both the study and the software being investigated meet the criteria of Non-Significant Risk.

Study Overview

Detailed Description

The primary objective of this study is to evaluate the effects of combination of mindfulness training (MT) and adaptive cognitive training (CT) on the cognitive abilities, functional status and quality of life of soldiers and veterans diagnosed with traumatic brain injury (TBI, also referred to as a concussion, or blast exposure), as compared to a computer-based control.

Study Type

Interventional

Enrollment (Actual)

23

Phase

  • Not Applicable

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

    • Connecticut
      • West Haven, Connecticut, United States, 06516
        • Veterans Affairs Connecticut Health Care System

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Participants must be 18 years of age or older
  • Participants must have diagnosis of mild traumatic brain injury (mTBI) confirmed by Ohio State University TBI Identification Method-Short Form (OSU TBI-ID-SF)
  • Participants must have persistent cognitive dysfunction confirmed by an objective measure (Automated Neuropsychological Assessment Metrics (ANAM) TBI Battery with a score at least one standard deviation below the age-adjusted norm for a military sample) or a subjective measure (Ruff Neurobehavioral Inventory (RNBI) with a score of greater than 70 on any of the four cognitive scales (Attention, Memory, Language, Executive)
  • Participants must be at least six months out from their most recent traumatic brain injury (TBI), concussion, and/or blast exposure
  • Participant must be a fluent English speaker
  • Participants must score ≥ 70 on the Wechsler Test of Adult Reading (WTAR)
  • Participants must have adequate sensorimotor capacity to perform the program, including visual capacity adequate to read from a computer screen at a normal viewing distance, auditory capacity adequate to understand normal speech, and motor capacity adequate to control a computer mouse

Exclusion Criteria:

  • Participants with history of TBI with loss of consciousness for more than 24 hours or post-traumatic amnesia for more than 7 days
  • Participants with a history of penetrating head wounds
  • Participants who are in-patients
  • Participants with a diagnosis of an illness or condition with known cognitive consequences (e.g., schizophrenia, bipolar disorder, cancer, multiple sclerosis)
  • Participants with active suicidal ideation with specific plan and intent or suicide-related behaviors within 2 months of consent as measured by the Columbia-Suicide Severity Rating Scale (C-SSRS)
  • Participants showing signs of intoxication due to current substance abuse (including alcohol and/or illegal drugs) during any in person visit
  • Participants with clinically significant visual field deficits
  • Participants judged to be lacking effort
  • Participants with problems performing assessments or comprehending or following spoken instructions
  • Participants enrolled in a concurrent clinical trial involving an investigational pharmaceutical, nutraceutical, medical device, or behavioral treatment for TBI that could affect the outcome of this study
  • Participant with self-reported claustrophobia or physician-reported implanted devices (e.g. pacemakers, cochlear implants, aneurysm clips, etc.) and pregnant women will not be able to participate in MRI portion of study.

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: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Experimental Treatment
Computerized plasticity-based adaptive cognitive training and mindfulness training requiring a total maximum of 60 treatment sessions, up to 5 sessions per week, 40 minutes per session.
Thirty minutes of training on computerized exercises that targets processing speed, memory and attention.
Ten minutes of using an online training course that teaches skills to help overcome ongoing life stressors.
Active Comparator: Active Comparator
Commercially available computerized training and traumatic brain injury information session requiring a total maximum of 60 treatment sessions, up to 5 sessions per week, 40 minutes per session.
Thirty minutes of training on computerized, casual video games.
Ten minutes of viewing traumatic brain injury related news, information, and programs.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in performance on global cognitive composite score
Time Frame: At 3 months and at 6 months
Change in performance on global cognitive composite score based on the average of all normalized assessment measures.
At 3 months and at 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in performance on processing speed composite score
Time Frame: At 3 months and at 6 months
Change in performance on processing speed will be measured using the composite score created by averaging the z-scores of Pattern Comparison, Letter Comparison, and Digit Symbol Coding tasks.
At 3 months and at 6 months
Changes in performance on memory composite score
Time Frame: At 3 months and at 6 months
Change in performance on memory will be measured using the composite score created by averaging the z-scores of N-Back task, Spatial Working Memory task, WAIS-IV Digit Span and Rey Auditory Verbal Learning Test (RAVLT).
At 3 months and at 6 months
Changes in performance on executive function composite score
Time Frame: At 3 months and at 6 months
Change in performance on executive function will be measured using the composite score created by averaging the z-scores for the Trail Making, Flanker, and Stroop tasks.
At 3 months and at 6 months
Change in functional performance
Time Frame: At 3 months and at 6 months
Between-group magnitude of change in sum time of all tasks in the Timed Instrumental Activities of Daily Living (TIADL). Higher scores indicate greater impairment in functional performance.
At 3 months and at 6 months
Change in TBI functional status
Time Frame: At 3 months and at 6 months
Between-group magnitude of change in overall T-score using the self-report measure, Mayo-Portland Adaptability Inventory (MPAI-4). The overall T-score range is -38 to 106. Higher scores indicate more severe TBI functional status.
At 3 months and at 6 months
Changes in brain function
Time Frame: At 3 months
Change in resting state functional connectivity will be measured by 12-minutes of resting state functional MRI. Participants will be instructed to keep their eyes open and maintain attention on a white fixation cross on a black screen.
At 3 months
Changes in brain structure
Time Frame: At 3 months
Structural brain integrity will be measured with a high resolution 3D T1-weighted scan with good gray/white matter contrast and a complementary high-resolution T2-weighted anatomical scan.
At 3 months
Changes in task-related brain activation
Time Frame: At 3 months
Change in functional connectivity and brain activation will be measured while performing N-Back Task.
At 3 months

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Physical Activity
Time Frame: At 3 months
Change in total score based on weekly self-report dairy about physical activity during training period.
At 3 months
Change in Diet
Time Frame: At 3 months
Change in total score based on weekly self-report dairy about diet during training period.
At 3 months
Change in Social Activity
Time Frame: At 3 months
Change in total score based on weekly self-report dairy about social activity during training period.
At 3 months
Change in Sleep
Time Frame: At 3 months
Change in total score based on weekly self-report dairy about sleep during training period.
At 3 months
Change in Functional Abilities
Time Frame: At 3 months
Change in total score based on weekly self-report dairy about functional abilities during training period.
At 3 months
Change in Neurobehavioral Symptoms
Time Frame: At 3 months and at 6 months
Between-group magnitude of change in sum score using the self-report measure, Neurobehavioral Symptoms Index (NSI). The scoring range is 0-88. Higher scores indicate more severe neurobehavioral symptoms.
At 3 months and at 6 months
Change in PTSD Symptoms
Time Frame: At 3 months and at 6 months
Between-group magnitude of change in sum score using the self-report measure, PTSD Checklist (PCL-5). The scoring range is 0-80. Higher scores indicate more severe PTSD symptoms
At 3 months and at 6 months
Change in Depressive Symptoms
Time Frame: At 3 months and at 6 months
Between-group magnitude of change in sum score using the self-report measure, Beck Depression Inventory (BDI-II). The scoring range is 0-63. Higher scores indicate more severe depressive symptoms.
At 3 months and at 6 months
Change in Health-Related Quality of Life
Time Frame: At 3 months and at 6 months
Between-group magnitude of change in sum score using the self-report measure, Quality of Life after Brain Injury (QOLIBRI). The scoring range is 0-100. Lower scores indicate lower quality of life.
At 3 months and at 6 months
Change in Executive Function Symptoms
Time Frame: At 3 months and at 6 months
Between-group magnitude of change in After total T-score using the self-report measure, Frontal Systems Behavior Scale (FrSBe). Raw scores are converted to age- and education-corrected T-scores. The mean T-score is 50, scores greater than 65 are considered clinically significant.
At 3 months and at 6 months
Change in Cognitive Symptoms
Time Frame: At 3 months and at 6 months
Between-group magnitude of change in sum score using the self-report measure, Cognitive Failures Questionnaire (CFQ). The scoring range is 0-100. Higher scores indicate more severe cognitive symptoms.
At 3 months and at 6 months
Change in Work/School Status
Time Frame: At 3 months and at 6 months
Change in total score using the self-report questionnaire about their work/school status.
At 3 months and at 6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Kyu Lee, PhD, Posit Science Corporation

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

Study Start (Actual)

March 31, 2017

Primary Completion (Actual)

August 30, 2020

Study Completion (Actual)

September 14, 2020

Study Registration Dates

First Submitted

September 29, 2016

First Submitted That Met QC Criteria

September 30, 2016

First Posted (Estimated)

October 4, 2016

Study Record Updates

Last Update Posted (Estimated)

December 23, 2025

Last Update Submitted That Met QC Criteria

December 16, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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