Trial record 9 of 26 for:    Open Studies | "Brain Concussion"

Assessment of Oculomotor, Vestibular and Reaction Time Response Following a Concussive Event (NKI-RIF1)

This study is not yet open for participant recruitment. (see Contacts and Locations)
Verified April 2013 by Neuro Kinetics
Information provided by (Responsible Party):
Neuro Kinetics Identifier:
First received: April 10, 2013
Last updated: April 11, 2013
Last verified: April 2013

This study is designed to evaluate the use of a collection of tests that measure the eye response, balance, oculomotor and reaction time tests to aid in the diagnosis of mTBI. The tests use highly precise measurement tools to assess various neurologic functions. (For example, high-speed cameras to record eye movement, high-end motors to precisely spin and move the subject, comprehensive analysis to stitch together the stimulus and the response.)


  1. A battery of oculomotor, vestibular and reaction time tests will generate variables that when properly weighted and run through a given multi-variant analysis, will separate the subjects into one of two groups, mTBI or not-mTBI.
  2. A battery of neurologic assessment tests including reaction time, vestibular and oculomotor tests taxing a range of neurologic functions and executed using one or more of the I-Portal® family of devices, will generate responses that, when used by a trained physician, can aid in the diagnosis of an mTBI.

Concussion, Mild
Concussion, Intermediate
Concussion, Severe

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Assessment of Oculomotor, Vestibular and Reaction Time Response Following a Concussive Event

Resource links provided by NLM:

Further study details as provided by Neuro Kinetics:

Primary Outcome Measures:
  • Variability of latency in reflexive saccades (ms) [ Time Frame: within 7 days of a concussion event ] [ Designated as safety issue: No ]
    Examine the latency of subjects with mTBI with respect to mean latency and standard deviation of control subjects.

  • Variability of latency in reaction time test (ms) [ Time Frame: within 7 days of a concussion event ] [ Designated as safety issue: No ]
    Examine the latency of subjects with mTBI with respect to mean latency and standard deviation of control subjects.

  • Variability of error in subjective visual vertical test (degrees) [ Time Frame: within 7 days of a concussion event ] [ Designated as safety issue: No ]
    Examine the mean error of subjects with mTBI with respect to mean error and standard deviation of control subjects.

Estimated Enrollment: 180
Study Start Date: September 2013
Estimated Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   19 Years to 45 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

The Investigational Group includes Service Members (SM) who had been diagnosed with an mTBI. The Control Group consists of SM who do not have clinical symptoms consistent with mTBI. There will be 90 participants in each group, for a target total of 180 study participants.


Inclusion criteria for all subjects (Control and mTBI) - Males or females from 19 - 45years of age and of all races.

Additional Inclusion criteria for mTBI Subjects

- Diagnosed with traumatic brain injury utilizing 2007 DoD Standard diagnosis of

  • 1) Exposed to an event,
  • 2) Suffered alteration or loss of consciousness secondary to the event, and
  • 3) Had a sequelae from the event.

Exclusion criteria for all subjects (Control and mTBI)

  • Brain injury resulting from a penetrating wound to the head, neck, face or brain (to include gunshot wounds)
  • Presence of severe aphasia
  • Persons whom have had an mTBI within the prior month and are symptomatic.
  • Persons with a previous history of multiple mTBIs and are symptomatic.
  • History of neuropsychiatric disorders antedating the head injury (e.g. hypochondriasis, major depression, schizophrenia)
  • Pregnancy
  • Prior disorders of hearing and balance including:

    • Meniere's disease
    • Chronic migraine
    • Multiple sclerosis
    • Vestibular neuritis
    • Vestibular schwannoma
    • Sudden sensorineural hearing loss
  • Cerebrovascular disorders
  • Systemic disorders: e.g. chronic renal failure, cirrhosis of the liver, etc.
  • Medications which depress the sensorium precluding patient compliance with the testing (considered on a case-by-case basis)
  • Previous contraindicating surgeries at the discretion of the study physicians or audiologists

Additional Exclusion criteria for Control Subjects

  • Concussion within the last year (12 months)
  • Repeated blast exposure
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

No Contacts or Locations Provided
  More Information

No publications provided

Responsible Party: Neuro Kinetics Identifier: NCT01832714     History of Changes
Other Study ID Numbers: NKI-W81XWH-12-C-0205
Study First Received: April 10, 2013
Last Updated: April 11, 2013
Health Authority: United States: Institutional Review Board
United States: Food and Drug Administration

Keywords provided by Neuro Kinetics:
Neuro Kinetics
reaction time
eye tracking
Dizziness Handicap Inventory

Additional relevant MeSH terms:
Brain Concussion
Brain Injuries
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Craniocerebral Trauma
Trauma, Nervous System
Head Injuries, Closed
Wounds and Injuries
Wounds, Nonpenetrating processed this record on September 16, 2014