Trajectories of Change in Tourette Syndrome
1 other identifier
interventional
30
1 country
1
Brief Summary
This K23 Career Development Award is designed to provide the training needed for the PI to achieve her long-term career goal of conducting independent, programmatic intervention research in developmental populations. The training will emphasize gaining expertise in higher-intensity, multi-method, within-subject data collection and analysis. This award builds on the PI's emerging experience in tic disorders and pediatric behavioral interventions, and her ability to quickly learn and apply advanced statistical methods. The award will extend the PI's training through the following short-term training goals: 1) multi-method data collection and integration (electronic momentary assessment \[EMA\], wearable devices, neurocognitive tasks), 2) leading and designing pediatric clinical trials, 3) managing and analyzing large, multilevel datasets, and 4) career development and contribution to the field. The PI has developed a training plan to accomplish these goals in concert with her mentors, a team of leading experts in the fields of psychiatry and psychology, who will closely monitor training through regular meetings. The highly structured training plan also includes a set of formal coursework and workshops for each training goal to complement the hands-on experience the PI will gain from leading the research project. The objective of this proposal is to comprehensively map symptom change across time and during a behavioral intervention for youth with Persistent Tic Disorders (PTDs). PTDs affect approximately 1% of the population, can cause significant disability, have high rates of comorbidity, and are associated with a four-fold increase in suicide risk. Research has established that tic symptoms and their change over time are highly idiographic. However, first-line, evidence-based, existing interventions are "one-size-fits-all," and are only effective for 60% of patients. The current study aims to use advanced statistical methods and a novel theoretical framework to map the stability of tic patterns, along with systemic factors that relate to tic change over time. Study hypotheses, based on the literature and preliminary data, are that a) tic change patterns will be stable before intervention for all participants, b) disruption of stable patterns during the intervention phase will be associated with treatment response, and c) this disruption will depend on the specific driver of tic symptoms pre-intervention. N = 30 youth ages 12-17 with chronic tics will be recruited for the study. There will be three study phases: 1) pre-intervention (4 weeks), 2) intervention (8 weeks), and 3) post-intervention (4 weeks). Before and between each phase, participants will complete 4 traditional assessments to assess symptoms and treatment response. Throughout the 16 weeks of the study, we will collect EMA data focused on factors relevant to tics (4x per day), physiological data from wearable devices (passive, continuous), and neurocognitive task performance and tic video observation (1x per week). Results will inform efforts to develop individualized interventions for individuals with PTDs to improve treatment outcomes.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Mar 2025
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 5, 2024
CompletedFirst Posted
Study publicly available on registry
November 8, 2024
CompletedStudy Start
First participant enrolled
March 31, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 15, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
May 15, 2029
August 6, 2025
July 1, 2025
4.1 years
November 5, 2024
July 31, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Clinical scales of tic change
ecological momentary assessment outcomes of tic change
4 months
Study Arms (1)
Comprehensive Behavioral Intervention for Tics (CBIT)
EXPERIMENTALbehavior therapy for tics
Interventions
All participants will receive 8 sessions of CBIT following a published treatment manual.
Eligibility Criteria
You may qualify if:
- Presence of chronic motor and/or vocal tics, defined as tics for at least 1 year without a tic-free period of more than 3 consecutive months. Tics must not be due to a medical condition or the direct physiological effects of a substance.
- At least moderate tic severity, defined as a Yale Global Tic Severity Scale44 total score ≥14 (≥9 for those with motor or vocal tics only).
- Participants must be fluent in English to ensure comprehension of study measures and instructions.
You may not qualify if:
- Previous diagnosis of psychosis or cognitive disability,
- IQ \< 80,
- Substance abuse or dependence within the past year.
- Current suicidal intent.
- Changes in medication in the previous 4 weeks.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Minnesota
Minneapolis, Minnesota, 55414, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Brianna Wellen
University of Minnesota
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 5, 2024
First Posted
November 8, 2024
Study Start
March 31, 2025
Primary Completion (Estimated)
May 15, 2029
Study Completion (Estimated)
May 15, 2029
Last Updated
August 6, 2025
Record last verified: 2025-07