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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02998073
Other study ID # 0702016
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date October 15, 2017
Est. completion date August 11, 2021

Study information

Verified date August 2021
Source Centre for Addiction and Mental Health
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This research focuses on youth with conduct disorder (CD), and a history of violence. CD is a youth neurodevelopmental disorder that is commonly associated with criminality. Although psychosocial interventions that address impulsivity and self-control have been shown to be effective at helping promote prosocial behavior in patients with CD, the biological changes that occur as a result of treatment are not well understood. This study will explore changes in the brain function of the anterior cingulate cortex (ACC) in response to a common psychosocial intervention (Stop, Now and Plan). This study will contribute to our understanding of biological mechanisms involved in therapeutic gains among children with behavioural problems and youth offenders; therefore, it will inform further development of treatment programs for children/youth with impulsive behaviours.


Description:

CD is a youth-limited neurodevelopmental disorder characterized by impulsivity and dysfunctional social behavior. CD is associated with increased risks of mortality, lower educational and occupational achievement, criminal behavior and other psychosocial difficulties, and hence presents a significant burden to society. Impulsivity is a prominent predictor of violence in CD. Treatment programs targeting impulsivity in CD have been shown to be effective at increasing pro-social functioning in CD, but the biological mechanisms that underpin these therapeutic gains are not well understood. Past research suggests that the ACC play a role in CD and impulsivity. This study explores biological and behavioral changes in response to Stop, Now and Plan (SNAP), a validated 13-week psychosocial intervention addressing impulsivity and self-control in youth. The main hypotheses are: (1) CD youth who respond to SNAP treatment will exhibit greater post-treatment ACC activation during an fMRI imaging task compared with their baseline, pre-treatment ACC activation. The secondary hypotheses are: (1) CD youth will exhibit lower ACC activation at baseline during an fMRI imaging task compared with the baseline ACC activation exhibited by typically developing youth.


Recruitment information / eligibility

Status Completed
Enrollment 27
Est. completion date August 11, 2021
Est. primary completion date February 5, 2020
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Male
Age group 6 Years to 11 Years
Eligibility Inclusion Criteria (SNAP Treatment Group): - Historical diagnosis of CD as per the K-SADS, which will be corroborated by DSM-5 criteria obtained by clinical assessment, and a CBCL, externalizing sub-score of 70 and above. Inclusion Criteria (SNAP Control Group) - No history of psychiatric illness as assessed by the Kiddi - Schedule for Affective Disorders and Schizophrenia Present and Lifetime version (K-SADS) - No history of criminal justice system involvement. Exclusion Criteria (ALL Groups): - Serious, unstable medical condition that precludes safe participation in the study - History of neurological or endocrine disorder - Any contraindication to safe MRI scanning, including claustrophobia - Psychotic or bipolar disorder - Current drug use measured by urinalysis - Full-scale IQ of 80 or lower (cut-off for borderline intellectual functioning) measured using the Wechsler Abbreviated Scales of Intelligence - 2nd Edition (WASI-II)

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Stop, Now and Plan
SNAP program was developed to target justice-involved youth (6 years and older) who have problems with aggression, CD, and/or gang affiliation. SNAP focuses on engaging youth in interesting and creative learning modules by providing real life scenarios designed to improve self-control, impulsive behaviors, decision-making skills, and pro-social skills. SNAP treatment is delivered over a 13-week period.

Locations

Country Name City State
Canada Centre for Addiction and Mental Health Toronto Ontario

Sponsors (2)

Lead Sponsor Collaborator
Centre for Addiction and Mental Health Ontario Mental Health Foundation

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change from baseline: blood-oxygen-level dependent (BOLD) activation of anterior cingulate cortex as measured by functional magnetic resonance imaging Difference in ACC BOLD activation to commission errors (contrast of BOLD response during commission errors vs. BOLD response during correct hits) will be tested using a 2 (Session: pre-SNAP vs. post-SNAP) × 2 (Group: treatment responders vs. non-treatment responders) within subject, mixed model analysis of covariance (ANCOVA), controlling for the effect of age, to investigate the two-way interaction between session and group. (Note: Commission errors compose a measure produced by the Go/No-Go task.) Measured before and after the 13-week program
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