- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05391503
Light Therapy for Obsessive-compulsive Disorder (OCD)
A Circadian Medicine Light-based Intervention for Obsessive-compulsive Disorder (OCD)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Prior to the start of this study, there are screening procedures to ensure participants meet the criteria for the study. At the first consent screening appointment, participants will learn more about the study and answer questionnaires. All of the results of the screening procedures are confidential and will only be used by the study staff to determine eligibility for the study.
This study is 5 weeks long and involves 4 in-person lab visits at the Sleep and Chronobiology Lab. Participants will be randomly assigned to either an active or placebo light therapy treatment condition. Visit 1 will involve additional screening to determine eligibility, including questionnaires and interviews. If eligible, participants will then track their sleep for 2 weeks at home with a wrist-worn activity monitor and a sleep diary. Visit 2 will take place in the lab from 5:30pm until 1 hour after participants typical bedtime. The investigators will ask participants to provide saliva samples hourly to measure melatonin and complete questionnaires. The investigators will provide treatment instructions at this visit. Investigators will then ask participants to engage in the treatment at home for 3 weeks. Investigators will schedule 1 in-person visit (Visit 3) and 1 phone call to assess adherence to the treatment during these 3 weeks. Visit 4 will take place in the lab after the treatment is finished. Visit 4 will last from 5:30pm until 1.5 hours after participants typical bedtime and will involve hourly saliva samples to measure melatonin, questionnaires, and interviews.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Rebecca C Cox, PhD
- Phone Number: 303-735-1923
- Email: sleep.study@colorado.edu
Study Locations
-
-
Colorado
-
Boulder, Colorado, United States, 80309-0554
- Recruiting
- Sleep and Chronobiology Laboratory
-
Contact:
- Rebecca Cox, PhD
- Phone Number: 303-735-1923
- Email: rebecca.cox@colorado.edu
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Primary OCD diagnosis (according to the Diagnostic and Statistical Manual of Mental Disorders 5)
- Bedtime 0100 or later
- Age 18-35
- English speaking
Exclusion Criteria:
- Subjects must not be currently participating in another research study that would influence their participation in our study.
- Past 6-month substance use disorder
- Lifetime psychosis or bipolar disorder
- Current sleep disorder (DSWPD and insomnia excepted)
- Significant, active suicidal ideation or behaviors in the past 6 months
- Intellectual disability
- Engaged in evidence-based psychotherapy for OCD
- History of light therapy or cognitive behavior therapy for insomnia
- Night shift work or travel outside of Mountain Standard Time in the past month
- Pregnant, trying to become pregnant, or breastfeeding
- Change in psychotropic medication in the past month
- Prescribed or over the counter sleep medication use in the past month
- Beta-block or monoamine oxidase inhibitor use in the past month
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Active treatment
Active light therapy
|
Morning bright light for 60 minutes after awakening
|
Placebo Comparator: Control treatment
Placebo light therapy
|
Placebo morning bright light for 60 minutes after awakening
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Obsessive-Compulsive Inventory-Revised score
Time Frame: 3 weeks
|
Self-reported OCD symptoms.
Minimum score=0, maximum score=74.
Higher scores indicate worse outcome
|
3 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Yale-Brown Obsessive-Compulsive Scale score
Time Frame: 5 weeks
|
Interviewer-assessed OCD symptoms.
Minimum score=0, maximum score=40.
Higher scores indicate worse outcome
|
5 weeks
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Circadian phase
Time Frame: 3 weeks
|
Circadian phase assessed by dim light melatonin onset (DLMO)
|
3 weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Rebecca C Cox, PhD, University of Colorado, Boulder
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 270-FP-22
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Any data generated from the proposed work that is presented in a peer reviewed journal will be de-identified.
Other data that is presented in a peer reviewed journal will be archived indefinitely and made available upon request.
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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