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Extinction Learning in Adults With Tourette Syndrome

Extinction Learning in Adults With Tourette Syndrome

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04498364
Enrollment
10
Registered
2020-08-04
Start date
2020-09-18
Completion date
2023-10-17
Last updated
2023-10-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Comprehensive Behavioral Intervention for Tics, Habit Reversal Training, Tic Disorders, Tics, Tourette Syndrome

Keywords

Extinction Learning, Comprehensive Behavioral Intervention for Tics, Behavior Therapy, Habit Reversal Training, Tourette's Disorder

Brief summary

Aversive sensory phenomena such as premonitory urges play a central role in the behavioral treatment model of tics. Extinction learning and extinction recall are learning processes implicated within this model, but are still understudied for individuals with Tourette syndrome (TS). This study examines extinction learning and extinction recall in adults with TS using an experimental task. This study will also explore the relationship between extinction processes (i.e., extinction learning and extinction recall) and treatment outcomes with behavior therapy. Findings from this investigation will be used to update the behavioral treatment model, which serves as the basis for evidence-based behavioral interventions.

Interventions

Habit Reversal Training (HRT) is a multi-component evidence-based treatment for tics.

Sponsors

Johns Hopkins University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* At least 18 years old, * Have moderate tic severity or greater as evidenced by a YGTSS Total Tic Score greater than 13 (\>9 for youth with motor or vocal tics only) * Have not received more than 4 previous sessions of HRT * Be fluent in English * Medication free or on a stable dose of psychiatric medication for 8 weeks prior to enrollment.

Exclusion criteria

* An inability to complete rating scales * An inability to attend study visits

Design outcomes

Primary

MeasureTime frameDescription
Tic severity as assessed by the Hopkins Motor and Vocal Tic Scale (HM/VTS)Within 1 week after completion of HRTPatient will nominate up to five motor and five vocal tics they deem bothersome on the HM/VTS. Each bothersome tic is then rated by a clinician on the composite two (vocal and motor) 5-point HM/VTS scale ranging from none (0) to severe (4) for the motor as well as vocal tics. The individual tic scores are summed (minimum of 0 and maximum of 40) and averaged together to create an average tic severity score.

Secondary

MeasureTime frameDescription
Tic severity as assessed by the Yale Global Tic Severity Scale-Revised (YGTSS)Within 1 week after completion of HRTThe YGTSS is a clinician-rated semi-structured interview that measures tic symptom severity over the previous week. It consists of 10-items that assess different dimensions of tic severity for motor and vocal tics, which are rated on a 0-5 scale. The YGTSS produces a Total Tic Score (range: 0-50), with higher ratings indicating greater tic severity. The YGTSS has demonstrated treatment sensitivity to pharmacotherapy and behavioral interventions.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026