- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02922569
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
Status
Completed
Conditions
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.
Sponsor
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
Additional Relevant MeSH Terms
Other Study ID Numbers
- PSC-0616-16
- AZ150059 (Other Identifier: eBRAP Log Number)
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.
Clinical Trials on Mild Traumatic Brain Injury
-
Oragenics, Inc.Not yet recruitingMild Traumatic Brain Injury, ConcussionAustralia
-
Michael HarlEnrolling by invitationBrain Injury | Concussion | Mild Traumatic Brain Injury (mTBI)United States
-
McGill University Health Centre/Research Institute...UnknownMild Traumatic Brain Injury; ConcussionCanada, France, Israel
-
ElMindA LtdGE HealthcareCompletedTBI (Traumatic Brain Injury) | Mild Traumatic Brain Injury | Concussion, MildUnited States
-
Assistance Publique - Hôpitaux de ParisMinistry of Health, FranceCompleted
-
Washington University School of MedicineTerminated
-
Henry M. Jackson Foundation for the Advancement...Brooke Army Medical Center; Tripler Army Medical CenterRecruitingMild Traumatic Brain Injury (mTBI)United States
-
First Affiliated Hospital Xi'an Jiaotong UniversityHealth Science Center of Xi'an Jiaotong University; The Second Affiliated Hospital...RecruitingMTBI - Mild Traumatic Brain InjuryChina
-
Perception Dynamics InstituteUniversity of California, San Diego; University of South Alabama; University...Active, not recruitingMTBI - Mild Traumatic Brain InjuryUnited States
-
Centre Hospitalier de DouaiCompletedCompliance, Patient | Mild Brain Traumatic InjuryFrance
Clinical Trials on Computerized Plasticity-Based Adaptive Cognitive Training
-
Posit Science CorporationVA Palo Alto Health Care SystemCompletedPost Traumatic Stress Disorder | Alcohol Use DisorderUnited States
-
Posit Science CorporationCompletedHIV-associated Neurocognitive DysfunctionUnited States
-
Posit Science CorporationNational Institute on Aging (NIA)Completed
-
Posit Science CorporationWashington University School of Medicine; Spaulding Rehabilitation Hospital; VA...CompletedStroke | Acquired Brain Injury | Hemispatial NeglectUnited States
-
Posit Science CorporationHarvard Medical School (HMS and HSDM); University of IowaCompletedAge-related Cognitive DeclineUnited States
-
Posit Science CorporationVA Connecticut Healthcare System; Walter Reed National Military Medical Center and other collaboratorsCompletedTraumatic Brain InjuryUnited States
-
Posit Science CorporationWithdrawn
-
Posit Science CorporationUniversity of Iowa; The University of Texas at DallasCompletedAge-related Cognitive DeclineUnited States
-
Posit Science CorporationCompletedInsomnia ChronicUnited States
-
Posit Science CorporationMcGill UniversityCompleted