NCT05714150

Brief Summary

A moderate traumatic brain injury (TBI) occurring in early or middle adulthood might have long-lasting effects on the brain that can accelerate the decline of physical and cognitive function in older age. The proposed study seeks to better understand the implications of aging with a TBI, in order to help Veterans maintain their health and independence. The overarching hypothesis of this new line of research is that participants who experienced a moderate TBI in early or middle adulthood (at least 15 years prior to study enrollment) will have poorer performance on balance and cognitive tests, despite self-reporting no persistent motor or cognitive impairment from the TBI. The investigators also seek to evaluate the potential for practice-based learning and improvement of complex balance tasks in this population, to gain experience for conducting future rehabilitation studies. The long term goal of this line of research is to design rehabilitative and lifestyle interventions to preserve brain health and function in Veterans who have previously experienced a TBI.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
70

participants targeted

Target at P50-P75 for not_applicable

Timeline
2mo left

Started Mar 2024

Typical duration for not_applicable

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

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Study Timeline

Key milestones and dates

Study Progress95%
Mar 2024Jun 2026

First Submitted

Initial submission to the registry

January 17, 2023

Completed
20 days until next milestone

First Posted

Study publicly available on registry

February 6, 2023

Completed
1.1 years until next milestone

Study Start

First participant enrolled

March 21, 2024

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2026

Last Updated

April 24, 2026

Status Verified

April 1, 2026

Enrollment Period

2.3 years

First QC Date

January 17, 2023

Last Update Submit

April 21, 2026

Conditions

Keywords

traumatic brain injuryagingbalancecognition

Outcome Measures

Primary Outcomes (1)

  • Center of Pressure (COP) control

    Participants will receive real-time feedback of their center of pressure location, by observing a tracing on a television screen. They will shift their body weight in order to move the center of pressure, and will attempt to follow a pre-defined trajectory that is shown on the screen.

    Change from baseline COP control, measured immediately following a single intervention session (the session will include 30 minutes)

Study Arms (1)

Balance Intervention

EXPERIMENTAL

Participants with TBI history and without TBI history will both complete the same intervention.

Behavioral: Complex Balance Tasks

Interventions

The intervention will consist of a single session of practicing complex (cognitively engaging) balance tasks using an exergaming balance platform.

Balance Intervention

Eligibility Criteria

Age50 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 50-75. People of this age normally do not exhibit substantial balance or cognitive impairments, so observing a clear deficit between groups will provide compelling evidence of a TBI-related effect. This "younger old" age group will also help to avoid other comorbid health conditions of older age that would increase variability (uncertainty) in the data set.
  • Prior history of moderate closed-head TBI at least 10 years prior to study enrollment. Single or multiple TBIs are acceptable. All participants who self-report a prior TBI will complete a standardized interview called the Ohio State University TBI Identification Method (OSU TBI-ID) to characterize and confirm the occurrence of a prior moderate TBI. Moderate TBI will be defined as any of the following:
  • loss of consciousness from 30 minutes to 24 hours
  • and/or alteration of consciousness/mental state for greater than 24 hours
  • and/or post-traumatic amnesia for \>1 to \<7 days
  • and/or abnormal structural imaging confirmed by medical records
  • Affirmative response to the question: "At the present time, do you consider yourself to be fully recovered from the TBI?"
  • Score on the Activities Specific Balance Confidence Scale of 90 or higher (out of 100 possible points), which indicates absence of self-reported balance/mobility deficits.
  • Score of 19 or higher on the telephone version of the Montreal Cognitive Assessment, which indicates absence of major cognitive impairment.
  • living in the community and able to travel to the research site

You may not qualify if:

  • Neurological injury or disease other than prior history of moderate TBI
  • Current clinically significant post-traumatic stress disorder (PCL score \>30)
  • severe arthritis, such as awaiting joint replacement, that would interfere with participation balance/mobility tasks
  • Current substance abuse
  • Current uncontrolled major depressive episode, history of severe psychiatric illness unrelated to TBI (e.g., bipolar 1 or schizophrenia).
  • severe obesity (body mass index \> 35)
  • unstable cardiovascular disease (for example, recent angina or uncontrolled high blood pressure)
  • lung disease requiring use of supplemental oxygen
  • renal disease requiring dialysis
  • serious uncontrolled diabetes
  • terminal illness
  • myocardial infarction or major heart surgery in the previous year
  • cancer treatment in the past year, except for nonmelanoma skin cancers and cancers having an excellent prognosis (e.g., early stage breast or prostate cancer)
  • uncontrolled hypertension at rest (systolic \> 180 mmHg and/or diastolic \> 100 mmHg)
  • bone fracture in the previous year
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

North Florida/South Georgia Veterans Health System, Gainesville, FL

Gainesville, Florida, 32608-1135, United States

RECRUITING

MeSH Terms

Conditions

Brain Injuries, Traumatic

Condition Hierarchy (Ancestors)

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

Study Officials

  • David J. Clark, DSc

    North Florida/South Georgia Veterans Health System, Gainesville, FL

    PRINCIPAL INVESTIGATOR

Central Study Contacts

David J Clark, DSc

CONTACT

Brigette Cox, BS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Model Details: The intervention will consist of a single session of practicing complex (cognitively engaging) balance tasks using an exergaming balance platform. The session will include 30 minutes of practice. Participants with TBI history and without TBI history will both complete the same intervention.
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 17, 2023

First Posted

February 6, 2023

Study Start

March 21, 2024

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

June 30, 2026

Last Updated

April 24, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

A de-identified, anonymized dataset will be created and shared pursuant to a Data Use Agreement appropriately describing use of the dataset and prohibiting the recipient from identifying or re-identifying any individual whose data are included in the dataset. All individually identifiable information for the study will be handled in full compliance with policies outlined by the University of Florida Institutional Review Board and by the NF/SG VHA Human Research Protections Program.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Data will be available after the study is closed to enrollment. Data will remain available for at least 6 years in accordance with VA records management policy.
Access Criteria
Data can be accessed by contacting the Principal Investigator directly.

Locations