Sleep Disorders Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- People who have been diagnosed with Tourette's disorder according to DSM-5 criteria (a standard diagnostic guide used by clinicians)
- People who have also been diagnosed with Insomnia disorder according to DSM-5 criteria
- People whose tic severity scores meet a minimum threshold on a standard clinical scale (confirm with trial site for exact score requirements)
- People whose insomnia scores are above a set level on the Insomnia Severity Index (a standard questionnaire)
- People whose sleep efficiency is low enough on most nights during a monitored week, as recorded in a sleep diary
- People aged 18 to 50 years
- People who are fluent in English
Who may not be able to join:
- People who have ever been diagnosed with bipolar disorder, psychosis, or a pervasive developmental disorder
- People who have experienced suicidal thoughts, severe depression or anxiety, or alcohol or substance dependence within the past 6 months
- People who are at moderate to high risk of sleep apnea, based on a standard screening questionnaire
- People who currently have a diagnosis of narcolepsy
- People whose score on a standard cognitive assessment falls below a certain level (confirm with trial site)
- People who have changed their prescribed or over-the-counter sleep medications in the month before the study, or plan to do so during the study
- People who have changed their tic-related or other psychiatric medications in the month before the study, or plan to do so during the study
- People who consume more than 3 cups of caffeine per day
- People who have received behaviour therapy for tics or sleep problems within the past 3 months
- People who have travelled across more than 2 time zones in the past month
- People who do shift work or have an irregular sleep schedule, including large nightly variation in sleep timing or unusually short or long time in bed each night
- People who have Raynaud's disease or severe sensitivity to cold
- People who have another major medical or neurological condition
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Emily J Ricketts, PhD, University of California, Los Angeles
Phone: (310) 825-2701
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Actigraphy - Sleep Onset Latency; Actigraphy - Wake After Sleep Onset
Can't join this trial?
Data last synced from ClinicalTrials.gov: 13 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.