Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT03508245 · ClinicalTrials.gov registry record · NA
Investigating Circadian Rhythms in Youth With Persistent Tic Disorders
A NA study, sponsored by University of California, Los Angeles.
- Completed
- Registry status
- NA
- Development phase
- 35
- Enrollment target
NCT03508245: Completed NA study, sponsored by University of California, Los Angeles.
NCT03508245 is a NA study that has completed, run by University of California, Los Angeles. The registered enrollment target is 35 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03508245, a NA study, has completed, sponsored by University of California, Los Angeles.
- COMPLETED
- Registry status
- NA
- Development phase
- 35 participants
- Enrollment target
Study 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.
Primary Outcome
The clock time at which salivary melatonin concentration reaches a threshold of 4 picograms (pg) per milliliter.
Interventions
- OTHER Wearable short wavelength light therapy
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 35 participants |
| Start Date | 2018-01-18 |
| Est. Completion | 2023-06-23 |
| Phase | NA |
What the finished NCT03508245 record still lists
NCT03508245 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 35 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 1 intervention - of which Wearable short wavelength light therapy is the first listed.
NCT03508245 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03508245 about?
NCT03508245 is a clinical study titled "Investigating Circadian Rhythms in Youth With Persistent Tic Disorders". 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.
What is the current status of trial NCT03508245?
This trial is currently completed. It is a NA study. The enrollment target is 35 participants. The study started on 2018-01-18. Estimated completion is 2023-06-23.
What interventions are being tested in trial NCT03508245?
The interventions under investigation include: Wearable short wavelength light therapy (OTHER).
Who is sponsoring clinical trial NCT03508245?
This trial is sponsored by University of California, Los Angeles, which has 897 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03508245's enrollment target sits among peer trials
35 1564th of 2000 higher than 431 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT01697371 · 35 participants · NA
Proton Therapy in the Treatment of Liver Metastases
- NCT01940757 · 35 participants · Phase 1
Experimental Infection of Hookworm-naïve Adults With Dermally-applied Infectious Necator Americanus Hookworm Larvae
- NCT02235857 · 35 participants · NA
Post Approval Study of Liposorber LA-15 System for the Treatment of Focal Segmental Glomerulosclerosis in Children
- NCT02637934 · 35 participants · Phase 1
Phase I Pilot Study of Biodistribution, Metabolism and Excretion of Novel Radiotracer [18F]Fluorthanatrace (FTT) by PET/CT
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI