Caloric Stimulation on Cerebral Blood Flow

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01629901
Recruitment Status : Completed
First Posted : June 28, 2012
Last Update Posted : March 21, 2017
Scion NeuroStim
Information provided by (Responsible Party):
Duke University

Brief Summary:
This is a prospective, non-randomized study designed to generate preliminary data to assess the effect of a new portable non-invasive caloric stimulator on EEG waveform and cerebral blood flow on normal healthy volunteers.

Condition or disease Intervention/treatment Phase
Healthy Volunteer Device: ThermoNeuroModulation (TNM) Device Not Applicable

Detailed Description:
Study activities include monitoring with bilateral transcranial Doppler (TCD), EEG and continuous EKG monitoring at 30 second intervals for 5 minutes. This is followed by placement of the caloric stimulator investigational device for 20 minutes. An additional 20 minutes of TCD and EEG monitoring will also be recorded. This will end study participation.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 10 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: The Effect of Vestibular Stimulation on Cerebral Blood Flow
Study Start Date : June 2012
Actual Primary Completion Date : March 2015
Actual Study Completion Date : April 2015

Intervention Details:
  • Device: ThermoNeuroModulation (TNM) Device
    Non-invasive neurostimulator used for up to 20 minutes in a session.

Primary Outcome Measures :
  1. Changes in cerebral blood flow [ Time Frame: 20 minutes ]
    Changes in cerebral blood flow will be quantified through the use of bilateral transcranial Doppler (TCD). The baseline TCD of three vessels will be compared with measurements taken at 30 second intervals for 5 minutes after caloric stimulation.

Secondary Outcome Measures :
  1. Alterations in EEG readings [ Time Frame: 40 minutes ]
    EEG readings occurring between baseline, active CVS induction, and post-CVS induction periods will be assessed to identify and characterize alterations in the readings.

  2. Alterations in regional cerebral brain flow (rCBF) [ Time Frame: 40 minutes ]
    A standard noninvasive near infrared spectroscopy system will be used to look for any alterations in rCBF induced by CVS treatment.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • no history of neurological disease

Exclusion Criteria:

  • persons under the age of 18
  • pregnant or nursing women
  • history of neurological disease
  • history of psychiatric disease
  • congenital heart defect, known cardiac shunt
  • inner ear or pulmonary disease

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01629901

United States, North Carolina
Duke University Medical Center
Durham, North Carolina, United States, 27710
Sponsors and Collaborators
Duke University
Scion NeuroStim
Principal Investigator: Daniel Laskowitz, MD Duke University

Responsible Party: Duke University Identifier: NCT01629901     History of Changes
Other Study ID Numbers: Pro00035775
First Posted: June 28, 2012    Key Record Dates
Last Update Posted: March 21, 2017
Last Verified: June 2015

Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No

Keywords provided by Duke University:
Healthy volunteer