MRI Study of Tic Remission in Tourette Syndrome

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: NCT01405859
Recruitment Status : Completed
First Posted : July 29, 2011
Last Update Posted : May 12, 2016
Information provided by (Responsible Party):
David Shprecher, University of Utah

Brief Summary:
Doctors provide a ray of hope to children and their parents with the knowledge that, for most patients, symptoms of Tourette syndrome improve by the time they are young adults. The investigators do not know why some improve and others do not. This study is designed to help answer that question. The investigators will use magnetic resonance imaging (MRI) techniques to test whether individuals who experience improvement of their Tourette's (tic remission) have more mature brain connections than those who do not.

Condition or disease
Tourette Syndrome

Detailed Description:
One of the most interesting aspects of Tourette syndrome is a virtual remission of tics by early adulthood in about half of patients. Information is needed to clarify the mechanism of tic remission in order to guide development of better treatments for this disabling condition. For this cross-sectional study, 10 individuals with tic remission and 10 individuals with persistent Tourette syndrome are being recruited for a one-time study visit. 10 neurologically normal (non-TS) controls have also been recruited to obtain control neuroimaging data. All participants will complete a study questionnaire and a 60-minute MRI procedure. Sequences used to compare the groups will be volumetric, diffusion tensor, resting state functional connectivity MRI and MR spectroscopy. Our primary hypothesis is that the pattern of functional connectivity in individuals with tic remission will be more mature than that of those with persistent tics. Secondary hypotheses tested will explore whether the other modalities can be used to differentiate tic remission from persistent TS.

Study Type : Observational
Actual Enrollment : 21 participants
Observational Model: Case Control
Time Perspective: Cross-Sectional
Official Title: Neuroimaging to Elucidate the Mechanism of Tic Resolution in Tourette Syndrome
Study Start Date : January 2010
Actual Primary Completion Date : June 2012
Actual Study Completion Date : June 2012

Resource links provided by the National Library of Medicine

TS controls
Non TS Controls
TS remission

Primary Outcome Measures :
  1. Resting state functional connectivity [ Time Frame: Participants come in for a one-time visit. All participants will be enrolled by July 2012. Data will be analyzed by Sept 2012. ]
    Quantitative measurements of integrated voxel-by-voxel blood oxygen level dependent fMRI time-series data will be compared between activated regions. Cross-correlation coefficients will be computed following band-pass filtering of data for evaluation of frequency-dependent contributions to correlation using standard functional connectivity techniques. Similar correlation analysis will be performed with signal from pulse oximetry and respiratory effort to evaluate for confounding stimulus-correlated physiological noise.

Secondary Outcome Measures :
  1. Magnetic resonance spectroscopy [ Time Frame: Participants come in for a one-time visit. All participants will be enrolled by July 2012. Data will be analyzed by Sept 2012. ]
    For each subject a central voxel within the anterior cingulate will be used as the region of interest. Peaks for substances of interest will be compared between each cohort.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 35 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Young adult males (aged 18-35) with a history of Tourette syndrome, including at least moderate disability from tics during childhood.

Inclusion Criteria:

All subjects: males aged 18-35 with history of Tourette syndrome and at least moderately disabling tics during childhood.

Persistent Tourette's subjects: history of disabling tics during childhood but no longer taking tic suppressing drugs.

Tic remission subjects: no longer experiencing any disability (even social discomfort) from tics. Must have had sustained improvement of tics for at least 3 years.

Normal controls: no longer recruiting.

Exclusion Criteria:

Tourette's subjects still taking tic suppressing drugs are excluded. Also excluded are any patients with a condition (such as a pacemaker, recent tattoo, implantable metal device, or claustrophobia) that could make the MRI examination unsafe.

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): NCT01405859

United States, Utah
University of Utah
Salt Lake City, Utah, United States, 84108
Sponsors and Collaborators
University of Utah
Principal Investigator: David Shprecher Neurology

Study Data/Documents: Clinical Study Report  This link exits the site
Final Study Results, Published in Tremor and Other Hyperkinetic Disorders

Responsible Party: David Shprecher, Assistant Professor, Neurology, University of Utah Identifier: NCT01405859     History of Changes
Other Study ID Numbers: 39432
First Posted: July 29, 2011    Key Record Dates
Last Update Posted: May 12, 2016
Last Verified: May 2016

Keywords provided by David Shprecher, University of Utah:
Tourette syndrome
Tourette's syndrome

Additional relevant MeSH terms:
Tourette Syndrome
Pathologic Processes
Basal Ganglia Diseases
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Tic Disorders
Movement Disorders
Heredodegenerative Disorders, Nervous System
Neurodegenerative Diseases
Genetic Diseases, Inborn
Neurodevelopmental Disorders
Mental Disorders