CompletedNot Applicable

Investigating Circadian Rhythms in Youth With Persistent Tic Disorders

United States35 participantsStarted 2018-01-18

Plain-language summary

This study examines circadian rhythms and morningness-eveningness preference in youth with Persistent Tic Disorders (PTDs), including Tourette's Disorder (TD); and assesses the effects of wearable short wavelength light therapy on circadian rhythms and tic symptoms.

Who can participate

Age range

13 Years – 17 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. DSM-5 diagnosis of Tourette's Disorder, Persistent Motor Tic Disorder, or Persistent Vocal Tic Disorder
. Yale Global Tic Severity Scale Score ≥ 14 for Tourette's Disorder or ≥ 10 for Persistent Motor Tic Disorder or Persistent Vocal Tic Disorder
. fluency in English

Exclusion criteria

. Current or lifetime diagnosis of Bipolar Disorder, psychosis, or autism spectrum disorder
. Suicidality, severe depression or anxiety (i.e., Depression or anxiety diagnosis is more severe than Tourette's Disorder; equivalence in severity is allowed), or substance dependence, present within the past 6 months
. Current diagnosis of Obstructive Sleep Apnea, Restless leg syndrome, Periodic Limb Movement Disorder, or Narcolepsy
. Intellectual functioning below the low average range (WASI-II IQ score \< 80)
. Hypnotic medications, or melatonin within 8 weeks of study enrollment
. Changes in dosage of any psychiatric medications within the past month
. Behavior therapy for tics within the past 3 months

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Dim Light Melatonin Onset

Timeframe: 2 weeks

Yale Global Tic Severity Scale (YGTSS)

Timeframe: 2 weeks

Trial details

NCT IDNCT03508245

SponsorUniversity of California, Los Angeles

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2023-06-23

View on ClinicalTrials.gov More Tourette's Disorder trials