NCT01847040

Brief Summary

The study will provide evidence on the long term outcomes of mTBI in service members returning from Afghanistan and Iraq. In addition, the study will provide evidence on mTBI incidence, and symptom patterns. Self-reported assessments at baseline and follow-ups will be combined with data on health care utilization and military job performance. The work, symptoms, and family interaction outcomes of returning soldiers screening positive for mTBI, combined mTBI and PTSD, and soldier controls will be compared at 3 months, 6 months, and at one year. The assessments over time will permit descriptions of symptom changes for these populations. It is likely the study will find similar findings to those of previous civilian studies - that concussive symptoms often resolve within months of injury. However, some soldier subsets may have chronic problems. Determining the incidence and outcomes of individuals with mTBI will assist medical providers in determining the types of follow-ups needed by returning service members and suggest the development of additional treatment interventions. These results may also inform treatment of civilian populations with mTBI. The three primary hypotheses are:

  1. 1.Concussive symptoms at the time of return from serving in Afghanistan and Iraq and symptoms persisting 3 months, 6 months, and 12 months after return will be associated with extent of exposure to combat, injury mechanism, associated injuries (co-occuring injuries), PTSD and other psychiatric co-morbidities, and number of deployment-related mTBIs.
  2. 2.Returning troops reporting concussive symptoms at the time of return from deployment will have more work related problems at each follow-up (including lower rates of return to duty, return to work, and poor quality of work).
  3. 3.The mTBI screening tool will be sensitive and specific to mTBI when compared to the criterion measure, which is a structured interview conducted by clinicians blinded to the screening results.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
750

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2009

Longer than P75 for all trials

Geographic Reach
1 country

2 active sites

Status
completed

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 Start

First participant enrolled

September 1, 2009

Completed
3.7 years until next milestone

First Submitted

Initial submission to the registry

April 26, 2013

Completed
10 days until next milestone

First Posted

Study publicly available on registry

May 6, 2013

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2013

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2014

Completed
Last Updated

February 25, 2019

Status Verified

May 1, 2013

Enrollment Period

3.9 years

First QC Date

April 26, 2013

Last Update Submit

February 21, 2019

Conditions

Keywords

Traumatic Brain InjuryEpidemiologyConcussionOutcomesPTSDProspectiveLongitudinalMilitarySymptomsValidationScreeningMild Traumatic Brain Injury

Outcome Measures

Primary Outcomes (2)

  • Over time change in Concussive symptoms

    Concussive symptoms are measured with 3 instruments: Neurobehavioral Symptom Inventory; Patient Health Questionnaire; Headache Questionnaire.

    Baseline; 3 months; 6 months; 12 months

  • Change in Work Related Issues

    Measures of rates of return to duty; rates of return to work; and military job performance (for subjects remaining in military at follow-up).

    3 months; 6 months; 12 months

Secondary Outcomes (4)

  • Automated Neuropsychological Assessment Metrics (ANAM)

    Pre-deployment testing; and upon return from deployment

  • Change in Social Interaction

    Baseline; 3 months; 6 months; 12 months

  • Alcohol and caffeine use

    Baseline; 3 months; 6 months; 12 months

  • Health Utilization

    Baseline; 3 months; 6 months; 12 months follow-up

Study Arms (2)

TBI while Deployed

Active duty service members returning from Afghanistan or Iraq who were screened positive for Mild TBI

No TBI while Deployed

Active duty service members returning from Afghanistan or Iraq who screened negative for mild TBI.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Cohort of soldiers returning to Fort Bragg and Fort Carson returning from deployment to Iraq and Afghanistan. National Guard and Army Reservists serving on Active Duty will also be included.

You may qualify if:

  • Must be returning from deployment in Iraq or Afghanistan
  • Must have been screened for mild TBI on the deployment related study screening tool
  • Must sign an informed consent/HIPAA authorization -

You may not qualify if:

  • Returning from deployment for medical reasons, that is, medically evacuated to the Continental US
  • Unable or unwilling to provide informed consent/HIPAA authorization -

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Fort Carson

Fort Carson, Colorado, 80913, United States

Location

Fort Bragg

Fort Bragg, North Carolina, United States

Location

Related Publications (6)

  • Ivins B, Risling M, Wisen N, Schwab K, Rostami E. Mild Traumatic Brain Injury in the Maturing Brain: An Investigation of Symptoms and Cognitive Performance in Soldiers Returning From Afghanistan and Iraq. J Head Trauma Rehabil. 2024 Jul-Aug 01;39(4):304-317. doi: 10.1097/HTR.0000000000000919. Epub 2023 Dec 7.

  • Scher AI, McGinley JS, VanDam LR, Campbell AM, Chai X, Collins B, Klimp SA, Finkel AG, Schwab K, Lipton RB, Johnson KW. Plasma calcitonin gene-related peptide and nerve growth factor as headache and pain biomarkers in recently deployed soldiers with and without a recent concussion. Headache. 2023 Oct;63(9):1240-1250. doi: 10.1111/head.14635. Epub 2023 Oct 5.

  • Scher AI, McGinley JS, Wirth RJ, Lipton RB, Terrio H, Brenner LA, Cole WR, Schwab K. Headache complexity (number of symptom features) differentiates post-traumatic from non-traumatic headaches. Cephalalgia. 2021 Apr;41(5):582-592. doi: 10.1177/0333102420974352. Epub 2020 Nov 27.

  • Metti A, Schwab K, Finkel A, Pazdan R, Brenner L, Cole W, Terrio H, Scher AI. Posttraumatic vs nontraumatic headaches: A phenotypic analysis in a military population. Neurology. 2020 Mar 17;94(11):e1137-e1146. doi: 10.1212/WNL.0000000000008935. Epub 2020 Jan 10.

  • Betthauser LM, Adams RS, Hostetter TA, Scher AI, Schwab K, Brenner LA. Characterization of lifetime TBIs in a cohort of recently deployed soldiers: The warrior strong study. Rehabil Psychol. 2019 Nov;64(4):398-406. doi: 10.1037/rep0000286. Epub 2019 Aug 1.

  • Schwab K, Terrio HP, Brenner LA, Pazdan RM, McMillan HP, MacDonald M, Hinds SR 2nd, Scher AI. Epidemiology and prognosis of mild traumatic brain injury in returning soldiers: A cohort study. Neurology. 2017 Apr 18;88(16):1571-1579. doi: 10.1212/WNL.0000000000003839. Epub 2017 Mar 17.

MeSH Terms

Conditions

Brain ConcussionBrain Injuries, TraumaticStress Disorders, Post-Traumatic

Condition Hierarchy (Ancestors)

Brain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemHead Injuries, ClosedWounds and InjuriesWounds, NonpenetratingStress Disorders, TraumaticTrauma and Stressor Related DisordersMental Disorders

Study Officials

  • Karen Schwab, PhD

    The Defense and Veterans Brain Injury Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
FED
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief, Epidemiology and Research Support

Study Record Dates

First Submitted

April 26, 2013

First Posted

May 6, 2013

Study Start

September 1, 2009

Primary Completion

August 1, 2013

Study Completion

August 1, 2014

Last Updated

February 25, 2019

Record last verified: 2013-05

Locations