Effects of Sertraline on Brain Connectivity in Adolescents With OCD

December 9, 2020 updated by: University of Minnesota

Effects of Sertraline on Brain Connectivity in Adolescents With OCD (Obsessive-Compulsive Disorder)

The investigators will examine how treatment with sertraline for 12 weeks impacts frontal-striatal-thalamic circuitry (FSTC) in this OCD sample.

Study Overview

Status

Completed

Conditions

Detailed Description

To examine FSTC using advanced multi-modal imaging techniques, including resting-state functional magnetic resonance imaging (R-fMRI) and high angular resolution diffusion imaging (HARDI), in 25 medication-free adolescents youths with OCD (ages 8-17) in comparison with 25 matched healthy controls.

Hypotheses: (A) Based on the pilot data, adolescents youths with OCD will show lower functional connectivity in FSTC at baseline when compared with controls, and , lower functional connectivity in FSTC will correlate with greater severity on CY-BOCS. (B) Adolescents Youths with OCD will also show abnormalities in structural connectivity in FSTC at baseline when compared with controls, and structural and functional connectivity will be related. (C) The investigators will explore relations between OCD dimensions and functional connectivity measures, and predict that the repeating/ordering dimension will correlate with orbitofrontal cortex (OFC) connections, hoarding will correlate with rostral anterior cingulate cortex (ACC) connections, and forbidden thoughts will correlate with caudal ACC connections.

To investigate how sertraline impacts functional connectivity in FSTC in adolescents with OCD.

Hypothesis: After 12 weeks of sertraline treatment, functional connectivity measures within FSTC for the OCD group will (on average) increase compared to baseline and will no longer be significantly different when compared with controls. Non-responders may show a different pattern (i.e. failure to show these changes).

Study Type

Interventional

Enrollment (Actual)

41

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Minnesota
      • Minneapolis, Minnesota, United States, 55454
        • University of Minnesota

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

8 years to 17 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria (OCD):

  • OCD as the primary Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) diagnosis based on the Anxiety Disorders Interview Schedule (ADIS) for DSM-IV, Child Version
  • Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS) score of greater than 15

Exclusion Criteria (OCD):

  • lifetime diagnosis of bipolar disorder, schizophrenia, or substance abuse/dependence on ADIS
  • Intelligence Quotient (IQ) < 80 on Wechsler Abbreviated Scales of Intelligence (WASI)
  • positive urine drug screen
  • MRI-incompatible features (e.g., metal implants, claustrophobia)
  • current or recent trial of psychotropic medication (within the past 4 8 weeks or past 6 12 weeks for fluoxetine)
  • non-response in > 2 selective serotonin reuptake inhibitor (SSRI) trials of adequate dose/duration
  • positive pregnancy test
  • history of seizure disorder or serious head injury

Inclusion Criteria (Controls):

  • Healthy 8-17 year olds

Exclusion criteria (controls):

  • No psychiatric diagnoses
  • No immediate family history of OCD

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Children with OCD
Children with obsessive compulsive disorder, not currently on medication for OCD
Impact of sertraline on functional brain connectivity
Other Names:
  • Zoloft
Active Comparator: Healthy Control Children
Children without obsessive compulsive disorder
Healthy control non-intervention

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
CY-BOCS Total Score at 12-weeks
Time Frame: 12 weeks
The Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS) a clinician-rated semi-structured instrument assessing OCD severity over the previous 7 days in children ages 6 to 17 years. Items are scored from 0 (none) to 4 (extreme) and total score ranges from 0 to 40 with higher scores indicating greater impairment. All 19 items are rated, but only items 1-10 are used to determine the total score. The total CY-BOCS score is the sum of items 1-10; the obsession and compulsion subtotals are the sums of items 1-5 and 6-10, respectively. At this time, items 1A and 6A are not being used in the scoring. Items 17 (global severity) and 18 (global improvement) are adapted from the Clinical Global Impression Scale to provide measures of overall functional impairment associated with the presence of obsessive-compulsive symptoms.
12 weeks
Longitudinal 2-Group Resting State Functional Conectivity (RSFC) Analyses
Time Frame: 12 weeks
Participants had whole brain fMRI at baseline &12 weeks. Whole brain connectivity in 6 striatal ROIs was performed. Two-way mixed effects ANOVAs were performed with FEAT. Clusters were significant if p <.0042 based on .05/(6 ROIs x 2 tests/ROI). Mean z-score was found for each time point in each subject's connectivity map in each significant cluster. Within-group paired-sample t tests examined RSFC change over time in these metrics for each group. To investigate group X time interactions from the 2-way ANOVA, we compared mean z-scores within each significant cluster at baseline & 12 weeks. Resulting numbers represented striatal connectivity for each individual at each time point. Within group paired sample t-tests examined RSFC change over time for each group. Bonferroni correction was applied to alpha level (2-tailed, p<0.5/6 =.0083) for multiple testing. We do not have an a priori hypothesis as to whether increase or decrease in RSFC is a better outcome. Unit of measure is z-score.
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Gail A Bernstein, MD, University of Minnesota

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2013

Primary Completion (Actual)

January 31, 2017

Study Completion (Actual)

January 31, 2017

Study Registration Dates

First Submitted

June 8, 2016

First Submitted That Met QC Criteria

June 10, 2016

First Posted (Estimate)

June 13, 2016

Study Record Updates

Last Update Posted (Actual)

January 5, 2021

Last Update Submitted That Met QC Criteria

December 9, 2020

Last Verified

December 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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