Traumatic Brain InjuryNCT03594734
Group Lifestyle Balance™ for Individuals With Traumatic Brain Injury (GLB-TBI)
A study testing Group Lifestyle Balance™ in people with Traumatic Brain Injury, run by Baylor Research Institute at 1 site in United States.
Trial summary
The purpose of this RCT is to examine the efficacy of a Group Lifestyle Balance™ (GLB) program adapted for people with traumatic brain injury (TBI) on primary (weight) and secondary outcomes at 3, 6, 12, and 18 months from enrollment into the program. Read more about this study
- Who is it for?
- Ages 18 to 64 years
- Conditions the study is for
- Traumatic Brain Injury
- What is being tested?
- Group Lifestyle Balance™
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 57 participants
- Where
- 1 siteUnited States
- Study dates
- 8 Jan 2019to 30 Dec 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 64 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- 18 to 64 years of age
- At least 6 months post-TBI
- Moderate to severe TBI at time of injury
- BMI greater than or equal to 25
- Physician approval by week 4 of program. For those who are randomized into the attention control support group, physician approval will not be needed because information regarding physical activity and promotion will not be provided.
- Have or willing to use a smartphone or tablet
Who cannot join
- Conditions in which physical activity is contraindicated
- Not fluent in the English language
- Low cognitive function
- Residing in a hospital, acute rehabilitation setting, or skilled nursing facility
- Currently taking medication for type 2 diabetes
- Pre-existing diagnosis of an eating disorder
- Pregnancy
- Previous participants
Trial locations and contacts
1 site in 1 country.
United States1 site
Baylor Scott & White Institute for Rehabilitation
Dallas, Texas, 75246
About this study
Official title: Efficacy of an Evidence-based Weight-loss Intervention Post Traumatic Brain Injury
The purpose of this RCT is to examine the efficacy of a Group Lifestyle Balance™ (GLB) program adapted for people with traumatic brain injury (TBI) on primary (weight) and secondary outcomes at 3, 6, 12, and 18 months from enrollment into the program.
Read the detailed description
Weight gain is common among people with TBI. Weight gain greatly increases the risk of chronic diseases such as diabetes, metabolic syndrome, pulmonary and heart disease. Approaches to weight-loss are lacking, yet necessary, due to the unique physiological and cognitive needs of persons with TBI. There is evidence that interventions that improve physical activity and healthy eating behaviors concurrently offer greatest potential for weight-loss. The Group Lifestyle Balance™ (GLB) intervention is a 12-month, evidence-based weight-loss program that has been used extensively with the general population, but not with people with TBI. The investigators modified the program to meet the needs of people with a TBI (GLB-TBI) and a pilot study with 20 individuals with TBI demonstrated that participation resulted in 5% weight-loss (10.2±13lbs) warranting a rigorous RCT. In addition, the investigators propose to integrate a mobile app into the GLB-TBI as 94% of pilot participants indicated that text messaging to support weight-loss would have been "very helpful" to boost motivation.
The proposed study consists of four specific aims.
Specific Aim 1: To examine the efficacy of the GLB-TBI compared to an attention control at 3, 6, 12, and 18 months from baseline using a randomized controlled trial.
Specific Aim 2: To examine participant compliance to GLB-TBI intervention components and its association with their outcomes:
Aim 2.1: To determine participant compliance with specific components of the GLB-TBI, including: (1) session attendance (2) self-monitoring of dietary and activity behaviors and (3) activity tracking of step count through accelerometer data.
Aim 2.2: To determine if compliance with the GLB-TBI is associated with improvement in primary (weight) and secondary outcomes (step count; waist circumference; blood pressure; HbA1c and lipid panel; functional measures; and quality of life).
Specific Aim 3: To assess feasibility (compliance, usability) of adding a smartphone application at week 12 of the GLB-TBI program and attention control condition to enhance participant engagement.
Specific Aim 4: Ascertain maintenance of primary (weight) and additional secondary outcomes (step count; waist circumference; blood pressure; HbA1c and lipid panel; risk of diabetes; and quality of life), compliance with and effect of the GLB-TBI and Attention Control App at 18 months.
Aim 4.1: To evaluate and integrate deep phenotype profiling (e.g. proteomics, metabolomics) and correlate findings with rehabilitation therapy and outcomes in patients with TBI.
- Conditions
- Traumatic Brain Injury
- Being tested
- Group Lifestyle Balance™, Attention Control Group
- Keywords
- Traumatic Brain Injury, Group Lifestyle Balance, Weight-Loss
- Medical subject headings
- Brain Injuries, Traumatic, Weight Loss
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Group Lifestyle Balance™Behavioural
The Group Lifestyle Balance™ (GLB) program is a self-management intervention that has been shown to result in weight-loss and reduce the risk for Type 2 diabetes through increased physical activity and healthy eating behaviors in the general population. The GLB program curriculum used in this RCT will be adapted for individuals with TBI.
Attention Control GroupOther
The attention control group will receive the same contact or "attention" as the intervention group. The attention control group will meet at the same frequency as the intervention group. Education for the sessions will be composed of content from the TBI Model Systems Knowledge Translation Center's factsheets. General topics will include discussion on (1) healthy brain and effects of TBI on cognitive, emotional, and behavioral functioning, (2) expectations for recovery, (3) preventative and management strategies for common TBI sequela (e.g. inability and impulsivity), (4) stress management, (5), signs and symptoms of depression, and (6) strategies for effective communication.
| Study group | Role | What they receive |
|---|---|---|
| GLB Weight-Loss Intervention | Experimental | The GLB program, adapted for individuals with TBI, will be delivered to participants over a 12-month period, divided into 22 in-person or virtual, group sessions. The intervention promotes 5-7% weight-loss by reducing calories and increasing exercise (150 minutes of moderate physical activity per week). Receives: Behavioral: Group Lifestyle Balance™ |
| Attention Control Group | Active comparator | The attention control group will meet at the same frequency as the GLB-TBI group over a 12-month period. The attention control group will receive education composed of the content from the TBI Model Systems Knowledge Translation Center's factsheets. No education on weight-loss strategies will be provided. Receives: Other: Attention Control Group |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in weight
Weight will be obtained using the same scale over the study period that is accessible to people with and without a mobility device (e.g. walker; wheelchair)
Measured: Baseline, 3 months, 6, months, 12 months, and 18 months
Secondary outcomes (28)
Step Count
The Garmin Vivofit will be worn for the study duration to measure physical activity data.
Measured: 3 months, 6 months, 12 months, and 18 months
Waist and Arm Circumference
Waist circumference will be measured at the umbilicus and mild-upper arm circumference following American College of Sports Medicine guidelines.
Measured: Baseline, 3 months, 6 months, 12 months, and 18 months
Blood Pressure
Using an automatic cuff (average of three readings, patient seated) diastolic and systolic scores will be recorded.
Measured: Baseline, 3 months, 6 months, 12 months, and 18 months
HbA1c and Lipid Panel
Fasting venous sample will be obtained for blood glucose, HDL/LDL, cholesterol, and triglyceride level.
Measured: Baseline, 3 months, 6 months, 12 months, and 18 months
Risk of Diabetes
The Framingham Heart Study diabetes risk score will be calculated using predictors including age, gender, fasting glucose, body mass index, HDL cholesterol and triglyceride levels, blood pressure, and parental history. Risk score calculator and regression model are free and used in GLB weight-loss trials. Each risk predictor is assigned points ranging from. Risk factors are combined and a total score is calculated, with higher scores designating greater 8-year risk.. The age range for this score is 45 years or older, and therefore only individuals over this age will have calculated scores. Furthermore, the minimum cut-off score is 3.
Measured: Baseline, 3 months, 6 months, 12 months, and 18 months
Satisfaction with Life
Satisfaction with life will be measured using the Satisfaction with Life Scale (SWLS). The SWLS is a 5-item scale designed to measure global cognitive judgements of one's life satisfaction. Participants indicate how much they agree or disagree with each of the 5 items using a 7-point scale that ranges from 7-strongly agree to 1-strongly disagree. Scores are added together and a total score is calculated, with higher scores signifying higher satisfaction with life and lower scores signifying lower satisfaction with life.
Measured: Baseline, 3 months, 6 months, 12 months, and 18 months
Biomarkers
TSH, Cortisol, IL-6, THNF, BDNF, IGF, and VEGF will be collected.
Measured: Baseline, 3 months, 6 months, 12 months, and 18 months
10 Meter Walk Test (10MWT)
Assesses walking speed in (m/s) which is correlated to mobility in the community, capacity to perform ADLs, risk of falls, re-hospitalization, and risk of cognitive decline.
Measured: Baseline, 3 months, 6 months, and 12 months
6 Minute Walk Test (6MWT)
Assesses distance walked (rolled for wheelchair users) over 6 minutes as a sub-maximal test of aerobic capacity.
Measured: Baseline, 3 months, 6 months, and 12 months
Social Support assessed by the Social Support for Diet and Exercise Behaviors Scale
Social Support for Diet and Exercise Behaviors Scale is a 23-item survey including four subscales: support for healthy eating (5 items); support for physical activity (11 items); social undermining for healthy eating (5 items) and physical activity (2 items). Each item is rated on a scale of 1 to 5 (1 none; 5 very often), with respondents asked to rate support from family, friends, and coworkers. Higher scores represent greater support and internal consistency ranged from Cronbach's α 0.72-0.76.
Measured: Baseline, 3 months, 6 months, 12 months, and 18 months
App Feasibility and Usability using the Feasibility and Usability Survey
The Feasibility and Usability survey includes 14 items that assesses the participant's subjective experience with the App, level of difficulty, prompting sequence, length, and understanding. Scores above 3 on the scale (1 [totally disagree] - 5 [totally agree]) indicate that the App was easy to use.
Measured: 6 months, 12 months, and 18 months
Neighborhood Walkability assessed by the Neighborhood Environment Walkability Scale (NEWS)
NEWS assesses residents' perception of neighborhood design features, categorized into subscales related to physical activity, including residential density, land use mix (including both indices of proximity and accessibility), street connectivity, infrastructure for walking/cycling, neighborhood aesthetics, traffic and crime safety, and neighborhood satisfaction. Subscales are scored as a mean of items. Higher scores denote higher walkability.
Measured: Baseline and 12 months
Self-Reported Activities of Health using the Self-Reported Activities of Health for Health Promotion Scale
Measure includes 28 items that assess health practices among people with disabilities and yields a total Health Practices score plus 4 subscales scores regarding Exercise, Nutrition, Health Practices, and Psychological Well Being. Items are rated on a 5-point scale from 0 'not at all' to 4 'completely.' Scores range from 0-28 with higher scores indicating higher exercise self-efficacy.
Measured: Baseline, 12 months, and 18 months
Stressful Life Events assessed by the Holmes and Rahe Stress Inventory
This inventory consists of 40 life events and asks the participant to recall if any of the events happened within the previous year (e.g., death of spouse; personal illness; change in sleep). Endorsement of these events are totaled and higher scores indicate a greater amount of stressful life events. Point values for the Holmes and Rahe Stress Inventory were weighted and summed for each individual based on scoring instructions. Individuals who scored 150 points or less were categorized as low susceptibility to a health breakdown in the next two years, 151-300 points were 50% chance of health breakdown, and 301 points or more were 80% chance of health breakdown.
Measured: Baseline, 3 months, 6 months, 12 months, and 18 months
App Data
The GLB TBI/Attention Control groups will both use this app. Usage and engagement will be collected.
Measured: 6 months, 12 months, and 18 months
Executive Function assessed by the Montreal Cognitive Assessment
The MOCA is a brief, 8-section assessment of various cognitive domains including executive function, memory, language, attention, concentration, orientation, and working memory in neurologic populations. Each item on the MOCA is allocated a set of points adding up to 30.
Measured: Baseline, 3 months, and 12 months
Self-reported perceptions of habit strength assessed by the Self-Report Habit Index (SRHI)
Self-Report Habit Index measures self-reported perceptions of habit strength for an identified behavior. The measure has high internal reliability across four studies. The measure consists of 12 items using a 7-point Likert scale ranging from "completely disagree" to "completely agree", with higher scores representing greater perception of habit strength.
Measured: Baseline, 3 months, and 12 months
Depression assessed using the Patient Health Questionnaire-8 item
The PHQ-8 is a brief self-report measure of major depressive disorder, derived from the PHQ-9 by removing the last question regarding suicide assessment.It is considered to be a valid measure of depression for population-based studies and clinical populations, and has been used in studies of patients with physical injury. Frequency of symptoms during the last 2 weeks is assessed on a 0 (not at all) to 3 (nearly every day) scale. A cut-off score of 10 or greater is considered diagnostic for current depression
Measured: Baseline, 12 months, and 18 months
Walk Score
Walk Score is publically available and measures walkability of any address using a patented system. Fore each address, Walk Score analyzes hundreds of walking routes to nearby amenities and awards points based on distance to each amenities. Scores are given on a scale of 0 to 100.
Measured: Baseline and 12 months
Behavioral Assessment
The BAST is a 47 item, theoretically grounded, validated survey of behavioral and emotional symptoms for community-based adults with TBI. This assessment is a shortened version of the validated 77-item survey, with questions related to environmental stressors and mood removed due to repetitiveness to other questions in survey packet. Responses are asked over the past two weeks using an ordinal scale from 0 "rarely" to 5 "very often." There are 6 subscales: Negative Affect, Substance Use, Executive Function, Fatigue, Impulsivity, and Maladaptive Coping. Higher scores indicate more symptoms in those domains. This measure will be used to characterize behavioral/emotional symptoms and to explore whether these are factors that influence
Measured: Baseline and 6 months
General Self Efficacy
The ten items from the General Self-Efficacy Scale (GSE) are deigned to examine goal-setting, effort investment, persistence in face of barriers and recovery from setbacks as constructs of perceived self-efficacy. The total score is the sum ranging from 10-40 and the instrument has been normed against the U.S. Adult population with a mean score of 29.48.
Measured: Baseline, 12 months, and 18 months
Behavioral Risk Factor Surveillance
The BRFSS is a state-based system of health surveys that collects information on health risk behaviors, preventative health practices, and health care access primarily related to chronic disease and injury. The GLB-TBI uses the two subscales of Healthy Eating and Physical Activity from the 2017 version of the BRFSS. It consists of 14 items.
Measured: Baseline, 3, 6, 12, and 18 months.
MedGem
This is an FDA cleared and validated indirect calorimetry device. It is handheld and measures oxygen consumption (V02) to determine resting metabolic rate (RMR)
Measured: Baseline
Metabolic Score Calculator (MetS)
The metabolic score calculator will be used at all time points to determine the risk for metabolic syndrome. The following variables will be used to determine metabolic risk using the free metabolic risk calculator: gender, race and ethnicity, systolic blood pressure, fasting glucose, triglycerides, high-density lipoprotein (HDL), weight, height, and waist circumference. Scores are calculated are standardized to the general population.
Measured: Baseline, 3, 6, 12, and 18 months
Substance Use
Information on substance use will be collected using the AUDIT-C (for alcohol use) and three questions regarding tobacco and non-prescriptive drug use.
Measured: Baseline, 12 months
CRISIS (CoRonavIruS Health Impact Survey) V0.3 Adult Baseline Form
This self-report survey was developed by the National Institute of Mental Health. The full survey consists of 64 questions with an open-ended section at the end to elicit concerns and feedback related to the effects of COVID-19. For this current study, however, only sections on Exposure Status (10 items), Life Changes (15 items), and Emotions/Worries (7 items), and the open-ended question will be asked. Questions are asked "over the past two weeks."
Measured: Up to 12 months
PROMIS Social Isolation Short Form 4a
The Social Isolation Short-Form 4a is taken from the Patient-Reported Outcomes Measurement Information System (PROMIS). This form assesses the perceptions of being "avoided, excluded, detached, disconnected from, or unknown by, others. There is no timeframe for the form. The measure is normed to the US population.
Measured: Up to 12 months
Media Questionnaire
To assess media exposure and fear of media exposure during COVID-19 we have added 6 questions. These are asked "over the past two weeks." These questions address time spent watching the television, listening to radio, reading the newspaper, and searching the internet and social media. In addition, a 6th question related to fear is asked using a 5-point Likert scale.
Measured: Up to 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jul 2018
- Study start8 Jan 2019
- Primary completion30 Dec 2022
- Study completion30 Dec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (9)Papers the sponsor has linked to this study.
- Other trials for Traumatic Brain InjuryStudies of the same condition, open and under way.
- More trials run by Baylor Research InstituteThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Randomized Controlled Trial (RCT). Participants will be randomized into two group: (1) the GLB Intervention Group and (2) the Attention Control Group.
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 57 participants (actual)
Sponsor and investigators
- Lead sponsor
- Baylor Research Institute
- Sponsor type
- University, hospital or other
- Collaborators
- National Institute on Disability, Independent Living, and Rehabilitation Research, University of Texas Southwestern Medical Center
- Responsible party
- Sponsor
- Investigators
- Simon Driver, PhD, Principal investigator, Baylor Scott & White Institute for Rehabilitation
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03594734
- Sponsor's protocol ID
- BSWRI 017-482
- Status last verified
- Oct 2026
- First submitted
- 28 Jun 2018
- Last updated
- 16 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Driver S, Juengst S, Reynolds M, McShan E, Kew CL, Vega M, Bell K, Dubiel R. Healthy lifestyle after traumatic brain injury: a brief narrative. Brain Inj. 2019;33(10):1299-1307. doi: 10.1080/02699052.2019.1641623. Epub 2019 Jul 12.
PubMed 31296066Driver S, Juengst S, McShan EE, Bennett M, Bell K, Dubiel R. A randomized controlled trial protocol for people with traumatic brain injury enrolled in a healthy lifestyle program (GLB-TBI). Contemp Clin Trials Commun. 2019 Jan 31;14:100328. doi: 10.1016/j.conctc.2019.100328. eCollection 2019 Jun.
PubMed 30775611Douglas M, Driver S, Callender L, Woolsey A. Evaluation of a 12-month lifestyle intervention by individuals with traumatic brain injury. Rehabil Psychol. 2019 Feb;64(1):25-36. doi: 10.1037/rep0000253. Epub 2018 Dec 20.
PubMed 30570330Reynolds M, Driver S, Bennett M. The social network - using social media to support individuals with traumatic brain injury participating in a pilot study weight-loss program. Brain Inj. 2018;32(12):1450-1454. doi: 10.1080/02699052.2018.1496480. Epub 2018 Jul 12.
PubMed 30325274Driver S, Reynolds M, Woolsey A, Callender L, Prajapati PK, Bennett M, Kramer K. Impact of a Community-Based Healthy Lifestyle Program on Individuals With Traumatic Brain Injury. J Head Trauma Rehabil. 2018 Nov/Dec;33(6):E49-E58. doi: 10.1097/HTR.0000000000000372.
PubMed 29385008Driver S, Reynolds M, Kramer K. Modifying an evidence-based lifestyle programme for individuals with traumatic brain injury. Brain Inj. 2017;31(12):1612-1616. doi: 10.1080/02699052.2017.1346286. Epub 2017 Jul 27.
PubMed 28750178Driver S, Reynolds M, Douglas M, Bennett M. Describing Weight Loss Attempts and Physical Activity Among Individuals With TBI Prior to Participation in a Weight-Loss Program. J Head Trauma Rehabil. 2018 Jan/Feb;33(1):E36-E43. doi: 10.1097/HTR.0000000000000327.
PubMed 28520676McShan EE, Juengst S, Douglas ME, Noorbakhsh D, Calhoun S, Bennett M, Suhalka A, Dubiel R, Driver S. Efficacy of a group-based education intervention for people with traumatic brain injury: supplementary results from a 12-month randomized controlled trial. Brain Inj. 2023 Aug 24;37(10):1205-1214. doi: 10.1080/02699052.2023.2225874. Epub 2023 Jun 24.
PubMed 37355803Juengst SB, McShan E, Conley M, Luu I, Driver S. Feasibility and Pilot Testing of Mobile Health Apps to Supplement 2 Healthy Lifestyle Interventions in Chronic Traumatic Brain Injury. J Head Trauma Rehabil. 2022 May-Jun 01;37(3):162-170. doi: 10.1097/HTR.0000000000000769. Epub 2022 Mar 15.
PubMed 35293364
Study at a glance
From the registry record, last updated by the sponsor on 16 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Efficacy of an Evidence-based Weight-loss Intervention Post Traumatic Brain Injury
- ClinicalTrials.gov ID
- NCT03594734
- Acronym / sponsor ID
- BSWRI 017-482
- Conditions
- Traumatic Brain Injury
- Keywords
- Traumatic Brain Injury, Group Lifestyle Balance, Weight-Loss
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 57 participants (actual)
- Lead sponsor
- Baylor Research InstituteUniversity, hospital or other
- Collaborators
- National Institute on Disability, Independent Living, and Rehabilitation Research, University of Texas Southwestern Medical Center
- Study start
- 8 Jan 2019 (actual)
- Primary completion
- 30 Dec 2022 (actual)
- Study completion
- 30 Dec 2027 (estimated)
- First posted
- 20 Jul 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this RCT is to examine the efficacy of a Group Lifestyle Balance™ (GLB) program adapted for people with traumatic brain injury (TBI) on primary (weight) and secondary outcomes at 3, 6, 12, and 18 months from enrollment into the program.
Detailed description
Weight gain is common among people with TBI. Weight gain greatly increases the risk of chronic diseases such as diabetes, metabolic syndrome, pulmonary and heart disease. Approaches to weight-loss are lacking, yet necessary, due to the unique physiological and cognitive needs of persons with TBI. There is evidence that interventions that improve physical activity and healthy eating behaviors concurrently offer greatest potential for weight-loss. The Group Lifestyle Balance™ (GLB) intervention is a 12-month, evidence-based weight-loss program that has been used extensively with the general population, but not with people with TBI. The investigators modified the program to meet the needs of people with a TBI (GLB-TBI) and a pilot study with 20 individuals with TBI demonstrated that participation resulted in 5% weight-loss (10.2±13lbs) warranting a rigorous RCT. In addition, the investigators propose to integrate a mobile app into the GLB-TBI as 94% of pilot participants indicated that text messaging to support weight-loss would have been "very helpful" to boost motivation.
The proposed study consists of four specific aims.
Specific Aim 1: To examine the efficacy of the GLB-TBI compared to an attention control at 3, 6, 12, and 18 months from baseline using a randomized controlled trial.
Specific Aim 2: To examine participant compliance to GLB-TBI intervention components and its association with their outcomes:
Aim 2.1: To determine participant compliance with specific components of the GLB-TBI, including: (1) session attendance (2) self-monitoring of dietary and activity behaviors and (3) activity tracking of step count through accelerometer data.
Aim 2.2: To determine if compliance with the GLB-TBI is associated with improvement in primary (weight) and secondary outcomes (step count; waist circumference; blood pressure; HbA1c and lipid panel; functional measures; and quality of life).
Specific Aim 3: To assess feasibility (compliance, usability) of adding a smartphone application at week 12 of the GLB-TBI program and attention control condition to enhance participant engagement.
Specific Aim 4: Ascertain maintenance of primary (weight) and additional secondary outcomes (step count; waist circumference; blood pressure; HbA1c and lipid panel; risk of diabetes; and quality of life), compliance with and effect of the GLB-TBI and Attention Control App at 18 months.
Aim 4.1: To evaluate and integrate deep phenotype profiling (e.g. proteomics, metabolomics) and correlate findings with rehabilitation therapy and outcomes in patients with TBI.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
- Model description
- Randomized Controlled Trial (RCT). Participants will be randomized into two group: (1) the GLB Intervention Group and (2) the Attention Control Group.
| Arm | Type | Receives |
|---|---|---|
| GLB Weight-Loss Intervention | Experimental | Behavioral: Group Lifestyle Balance™The GLB program, adapted for individuals with TBI, will be delivered to participants over a 12-month period, divided into 22 in-person or virtual, group sessions. The intervention promotes 5-7% weight-loss by reducing calories and increasing exercise (150 minutes of moderate physical activity per week). |
| Attention Control Group | Active comparator | Other: Attention Control GroupThe attention control group will meet at the same frequency as the GLB-TBI group over a 12-month period. The attention control group will receive education composed of the content from the TBI Model Systems Knowledge Translation Center's factsheets. No education on weight-loss strategies will be provided. |
Who may qualify
- Ages
- 18 to 64 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- 18 to 64 years of age
- At least 6 months post-TBI
- Moderate to severe TBI at time of injury
- BMI greater than or equal to 25
- Physician approval by week 4 of program. For those who are randomized into the attention control support group, physician approval will not be needed because information regarding physical activity and promotion will not be provided.
Key exclusion criteria (8 listed)
- Conditions in which physical activity is contraindicated
- Not fluent in the English language
- Low cognitive function
- Residing in a hospital, acute rehabilitation setting, or skilled nursing facility
- Currently taking medication for type 2 diabetes
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Group Lifestyle Balance™The Group Lifestyle Balance™ (GLB) program is a self-management intervention that has been shown to result in weight-loss and reduce the risk for Type 2 diabetes through increased physical activity and healthy eating behaviors in the general population. The GLB program curriculum used in this RCT will be adapted for individuals with TBI. | Behavioural | GLB Weight-Loss Intervention |
| Attention Control GroupThe attention control group will receive the same contact or "attention" as the intervention group. The attention control group will meet at the same frequency as the intervention group. Education for the sessions will be composed of content from the TBI Model Systems Knowledge Translation Center's factsheets. General topics will include discussion on (1) healthy brain and effects of TBI on cognitive, emotional, and behavioral functioning, (2) expectations for recovery, (3) preventative and management strategies for common TBI sequela (e.g. inability and impulsivity), (4) stress management, (5), signs and symptoms of depression, and (6) strategies for effective communication. | Other | Attention Control Group |
Primary outcome
Change in weight
Time frame: Baseline, 3 months, 6, months, 12 months, and 18 months
Weight will be obtained using the same scale over the study period that is accessible to people with and without a mobility device (e.g. walker; wheelchair)
28 secondary outcomes
Step Count
Time frame: 3 months, 6 months, 12 months, and 18 months
Waist and Arm Circumference
Time frame: Baseline, 3 months, 6 months, 12 months, and 18 months
Blood Pressure
Time frame: Baseline, 3 months, 6 months, 12 months, and 18 months
HbA1c and Lipid Panel
Time frame: Baseline, 3 months, 6 months, 12 months, and 18 months
Risk of Diabetes
Time frame: Baseline, 3 months, 6 months, 12 months, and 18 months
Satisfaction with Life
Time frame: Baseline, 3 months, 6 months, 12 months, and 18 months
Biomarkers
Time frame: Baseline, 3 months, 6 months, 12 months, and 18 months
10 Meter Walk Test (10MWT)
Time frame: Baseline, 3 months, 6 months, and 12 months
6 Minute Walk Test (6MWT)
Time frame: Baseline, 3 months, 6 months, and 12 months
Social Support assessed by the Social Support for Diet and Exercise Behaviors Scale
Time frame: Baseline, 3 months, 6 months, 12 months, and 18 months
App Feasibility and Usability using the Feasibility and Usability Survey
Time frame: 6 months, 12 months, and 18 months
Neighborhood Walkability assessed by the Neighborhood Environment Walkability Scale (NEWS)
Time frame: Baseline and 12 months
Self-Reported Activities of Health using the Self-Reported Activities of Health for Health Promotion Scale
Time frame: Baseline, 12 months, and 18 months
Stressful Life Events assessed by the Holmes and Rahe Stress Inventory
Time frame: Baseline, 3 months, 6 months, 12 months, and 18 months
App Data
Time frame: 6 months, 12 months, and 18 months
Executive Function assessed by the Montreal Cognitive Assessment
Time frame: Baseline, 3 months, and 12 months
Self-reported perceptions of habit strength assessed by the Self-Report Habit Index (SRHI)
Time frame: Baseline, 3 months, and 12 months
Depression assessed using the Patient Health Questionnaire-8 item
Time frame: Baseline, 12 months, and 18 months
Walk Score
Time frame: Baseline and 12 months
Behavioral Assessment
Time frame: Baseline and 6 months
General Self Efficacy
Time frame: Baseline, 12 months, and 18 months
Behavioral Risk Factor Surveillance
Time frame: Baseline, 3, 6, 12, and 18 months.
MedGem
Time frame: Baseline
Metabolic Score Calculator (MetS)
Time frame: Baseline, 3, 6, 12, and 18 months
Substance Use
Time frame: Baseline, 12 months
CRISIS (CoRonavIruS Health Impact Survey) V0.3 Adult Baseline Form
Time frame: Up to 12 months
PROMIS Social Isolation Short Form 4a
Time frame: Up to 12 months
Media Questionnaire
Time frame: Up to 12 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Oct 2026.
- Background: PubMed 31296066Driver S, Juengst S, Reynolds M, McShan E, Kew CL, Vega M, Bell K, Dubiel R. Healthy lifestyle after traumatic brain injury: a brief narrative. Brain Inj. 2019;33(10):1299-1307. doi: 10.1080/02699052.2019.1641623. Epub 2019 Jul 12.
- Background: PubMed 30775611Driver S, Juengst S, McShan EE, Bennett M, Bell K, Dubiel R. A randomized controlled trial protocol for people with traumatic brain injury enrolled in a healthy lifestyle program (GLB-TBI). Contemp Clin Trials Commun. 2019 Jan 31;14:100328. doi: 10.1016/j.conctc.2019.100328. eCollection 2019 Jun.
- Background: PubMed 30570330Douglas M, Driver S, Callender L, Woolsey A. Evaluation of a 12-month lifestyle intervention by individuals with traumatic brain injury. Rehabil Psychol. 2019 Feb;64(1):25-36. doi: 10.1037/rep0000253. Epub 2018 Dec 20.
- Background: PubMed 30325274Reynolds M, Driver S, Bennett M. The social network - using social media to support individuals with traumatic brain injury participating in a pilot study weight-loss program. Brain Inj. 2018;32(12):1450-1454. doi: 10.1080/02699052.2018.1496480. Epub 2018 Jul 12.
- Background: PubMed 29385008Driver S, Reynolds M, Woolsey A, Callender L, Prajapati PK, Bennett M, Kramer K. Impact of a Community-Based Healthy Lifestyle Program on Individuals With Traumatic Brain Injury. J Head Trauma Rehabil. 2018 Nov/Dec;33(6):E49-E58. doi: 10.1097/HTR.0000000000000372.
- Background: PubMed 28750178Driver S, Reynolds M, Kramer K. Modifying an evidence-based lifestyle programme for individuals with traumatic brain injury. Brain Inj. 2017;31(12):1612-1616. doi: 10.1080/02699052.2017.1346286. Epub 2017 Jul 27.
- Background: PubMed 28520676Driver S, Reynolds M, Douglas M, Bennett M. Describing Weight Loss Attempts and Physical Activity Among Individuals With TBI Prior to Participation in a Weight-Loss Program. J Head Trauma Rehabil. 2018 Jan/Feb;33(1):E36-E43. doi: 10.1097/HTR.0000000000000327.
- Derived from this study: PubMed 37355803McShan EE, Juengst S, Douglas ME, Noorbakhsh D, Calhoun S, Bennett M, Suhalka A, Dubiel R, Driver S. Efficacy of a group-based education intervention for people with traumatic brain injury: supplementary results from a 12-month randomized controlled trial. Brain Inj. 2023 Aug 24;37(10):1205-1214. doi: 10.1080/02699052.2023.2225874. Epub 2023 Jun 24.
- Derived from this study: PubMed 35293364Juengst SB, McShan E, Conley M, Luu I, Driver S. Feasibility and Pilot Testing of Mobile Health Apps to Supplement 2 Healthy Lifestyle Interventions in Chronic Traumatic Brain Injury. J Head Trauma Rehabil. 2022 May-Jun 01;37(3):162-170. doi: 10.1097/HTR.0000000000000769. Epub 2022 Mar 15.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Simon Driver, PhD principal investigator
Baylor Scott & White Institute for Rehabilitation
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Group Lifestyle Balance™ in people with Traumatic Brain Injury, run by Baylor Research Institute at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 16 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in weight (time frame: Baseline, 3 months, 6, months, 12 months, and 18 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03594734, which also lists 9 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Oct 2026.