NCT01789164

Brief Summary

The goal of this project is to determine if it is possible to assess Cerebrovascular Reactivity (CVR) to hypercapnia with functional Near Infrared Spectroscopy (fNIRS). Such a method would be particularly helpful in traumatic brain injury (TBI), where objective measures are needed, and would greatly expand the capacity to make such assessments in standard clinical practice.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2013

Typical duration for all trials

Geographic Reach
1 country

1 active site

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

January 1, 2013

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

February 7, 2013

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 11, 2013

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2015

Completed
Last Updated

January 17, 2019

Status Verified

January 1, 2019

Enrollment Period

2.9 years

First QC Date

February 7, 2013

Last Update Submit

January 15, 2019

Conditions

Keywords

TBIfNIRShypercapneaCerebrovascular reactivity

Outcome Measures

Primary Outcomes (1)

  • Reproducibility of CVR measurements with fNIRS during intersession and intra-session testing

    Establish reproducibility of CVR measurements with fNIRS during intersession and intra-session testing. Additionally, we will examine two methods of producing hypercapnia, breath holding and the Douglas bag methods to establish whether the two methods give similar NIRS results.

    Two years

Secondary Outcomes (1)

  • Examine the following hypothesis: TBI subjects have a lower CVR compared to healthy controls

    Two years

Other Outcomes (1)

  • The degree of CVR disruption correlates with the severity of TBI or post-concussive symptoms

    Two years

Study Arms (2)

Healthy group

Healthy group with no history of TBI or concussion. Gender matched non-TBI volunteers

TBI group

Males and females between 18 and 60 years who have a diagnosis of TBI and are symptomatic with DSM-IV Research Criteria for Post-Concussional Disorder (see below), gender matched non-TBI volunteers

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodProbability Sample
Study Population

Males and females (military health care beneficiaries and non military health care beneficiaries) between 18 and 60 years who have a diagnosis of TBI and are symptomatic with DSM-IV Research Criteria for Post-Concussional Disorder (see below), gender matched non-TBI volunteers.

You may qualify if:

  • ALL participants (TBI and non-TBI) subjects Males and females, ages 18 to 60 years, inclusive Able to read, write, speak and understand English
  • A history of TBI
  • Persistent post-concussive symptoms, according to the DSM-IV Research
  • Criteria for Post-Concussional Disorder, including:
  • Evidence from neuropsychological testing of difficulty in attention or memory. (refers to neuropsychological testing done as a part of the patient's hospital or rehabilitation care not as a part of screening for this study)
  • Three or more of the following symptoms, which started shortly after the trauma and persist for at least three months:
  • Fatigability
  • Disordered sleep
  • Headache
  • Vertigo or dizziness
  • Irritability or aggression
  • Anxiety, depression, or affective instability
  • Changes in personality (e.g. social or sexual inappropriateness)
  • Apathy or lack of spontaneity
  • Symptoms in criteria (a) and (b) must have their onset after trauma, or there was a significant worsening of pre-existing symptoms after trauma.

You may not qualify if:

  • History or evidence of pre-existing neurological or psychiatric disorder not related to TBI, such as:
  • Multiple sclerosis, pre- or co-existing
  • Stroke (other than stroke at the time of TBI)
  • Pre-existing developmental disorder
  • Pre-existing epilepsy
  • Pre-existing major depressive disorder
  • Pre-existing schizophrenia
  • Known allergy to latex (used in the NIRS apparatus band applied to the forehead)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for Neuroscience and Regenerative Medicine (CNRM)

Rockville, Maryland, 20851, United States

Location

Related Publications (3)

  • Kenney K, Amyot F, Haber M, Pronger A, Bogoslovsky T, Moore C, Diaz-Arrastia R. Cerebral Vascular Injury in Traumatic Brain Injury. Exp Neurol. 2016 Jan;275 Pt 3:353-366. doi: 10.1016/j.expneurol.2015.05.019. Epub 2015 Jun 3.

  • Amyot F, Kenney K, Spessert E, Moore C, Haber M, Silverman E, Gandjbakhche A, Diaz-Arrastia R. Assessment of cerebrovascular dysfunction after traumatic brain injury with fMRI and fNIRS. Neuroimage Clin. 2020;25:102086. doi: 10.1016/j.nicl.2019.102086. Epub 2019 Nov 11.

  • Reddy P, Izzetoglu M, Shewokis PA, Sangobowale M, Diaz-Arrastia R, Izzetoglu K. Evaluation of fNIRS signal components elicited by cognitive and hypercapnic stimuli. Sci Rep. 2021 Dec 6;11(1):23457. doi: 10.1038/s41598-021-02076-7.

MeSH Terms

Conditions

Brain Injuries, TraumaticPost-Concussion Syndrome

Condition Hierarchy (Ancestors)

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

Study Officials

  • Ramon Diaz-Arrastia, MD, PhD

    Uniformed Services University of the Health Sciences

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
FED
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Clinical Research

Study Record Dates

First Submitted

February 7, 2013

First Posted

February 11, 2013

Study Start

January 1, 2013

Primary Completion

December 1, 2015

Study Completion

December 1, 2015

Last Updated

January 17, 2019

Record last verified: 2019-01

Data Sharing

IPD Sharing
Will not share

Locations