Light Flashes to Treat Delayed Sleep Phase Disorder (DSPD)
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Flashes.
- Who it may be relevant to
- Registry conditions: Delayed Sleep Phase Disorder. Basic parameters: 15 years — 19 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Treating Sleep Disruption in Teens With Millisecond Light Exposure During Sleep
Overview
Delayed Sleep Phase Disorder (DSPD) is a sleep disruption that commonly occurs in teens and manifests as a difficulty in waking up in the morning, going to sleep early enough at night, and daytime disturbances such as depression, fatigue, and restlessness. The purpose of this study is to determine if brief flashes of light, that are scheduled to occur during sleep, are effective in treating DSPD.
Interventions
- Device Flashes
one hour of a sequence of light flashes (4000 lux, 3 msec, every 30 seconds); occurs during the hour immediately prior to desired waketime
Primary outcome measures
- Sleep quality [Time frame: weekly for four weeks]
Secondary outcome measures (1)
- Mood [Time frame: at the begining and end of intervention (4 weeks)]
Eligibility criteria
Inclusion criteria
- Male or female
- Full-time in high school
- primary sleep complaint consistent with delayed sleep phase disorder
Exclusion criteria
- sleep only in prone position
- currently taking medications specifically for the treatment of a sleep disorder
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Double blind
- Primary purpose
- Treatment
Study locations
United States · 1 center
- Stanford University — Palo Alto
Publications
- Zeitzer JM, Ruby NF, Fisicaro RA, Heller HC. Response of the human circadian system to millisecond flashes of light. PLoS One. 2011;6(7):e22078. doi: 10.1371/journal.pone.0022078. Epub 2011 Jul 8. PMID 21760955
- Zeitzer JM, Fisicaro RA, Ruby NF, Heller HC. Millisecond flashes of light phase delay the human circadian clock during sleep. J Biol Rhythms. 2014 Oct;29(5):370-6. doi: 10.1177/0748730414546532. Epub 2014 Sep 16. PMID 25227334
- Joyce DS, Spitschan M, Zeitzer JM. Optimizing Light Flash Sequence Duration to Shift Human Circadian Phase. Biology (Basel). 2022 Dec 13;11(12):1807. doi: 10.3390/biology11121807. PMID 36552316
- Joyce DS, Spitschan M, Zeitzer JM. Duration invariance and intensity dependence of the human circadian system phase shifting response to brief light flashes. Proc Biol Sci. 2022 Mar 9;289(1970):20211943. doi: 10.1098/rspb.2021.1943. Epub 2022 Mar 9. PMID 35259981
- Kaplan KA, Mashash M, Williams R, Batchelder H, Starr-Glass L, Zeitzer JM. Effect of Light Flashes vs Sham Therapy During Sleep With Adjunct Cognitive Behavioral Therapy on Sleep Quality Among Adolescents: A Randomized Clinical Trial. JAMA Netw Open. 2019 Sep 4;2(9):e1911944. doi: 10.1001/jamanetworkopen.2019.11944. PMID 31553469
Identifiers
NCT: NCT01406691 · kidflash · R01HD102344-01A1