SleepHelsinki! CIRCADIAN SLEEP REGULATION IN ADOLESCENCE

Not Applicable

• Conditions: Sleep Disorder Circadian Rhythm, Delayed Sleep Phase Type
• Interventions: Behavioral: Gamified intervention; Other: Control; Other: Psychoeducation; Device: Bright light; Behavioral: Sleep coaching

• Registration Number: NCT02964598
• Lead Sponsor: University of Helsinki

Brief Summary

Adolescence associates with alterations in sleep-wake organization, such as later circadian phase preference. Simultaneously external pressures, such as evening-driven social activities increase. These may lead to delayed sleep phase, which may cause serious problems for waking up at socially accepted times, and absenteeism from the school may follow. This project aims at tracking risk factors for later circadian regulation problems, characterizing interconnections of biological, psychological and behavioural mechanisms that maintain or induce poor sleep regulation in adolescence, and building a cost-effective, theoretically-based sleep intervention for adolescents with delayed sleep phase. This randomized control trial capitalizes on a new population-based cohort of 16-17-year olds.

Detailed Description

Not available

Study Timeline

• Status Verified: 2016-11
• Study Start: 2016-11
• Study First Submitted: 2016-11-09
• Study First Submitted QC: 2016-11-11
• Last Update Submitted: 2016-11-11
• Study First Posted: 2016-11-16
• Last Update Posted: 2016-11-16
• Primary Completion: 2018-12
• Study Completion: 2018-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 270

Inclusion Criteria

• Late bedtime several times per week

Exclusion Criteria

• Chronic disease that affects sleep. Ongoing therapeutic treatment relationship if considered overlapping by the participant

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Gamified intervention	Gamified intervention	A new gamified intervention designed for mobile phones
Control	Control	Minimal information on sleep timing
Psychoeducation	Psychoeducation	An extensive psychoeducational platform
Bright light	Bright light	Bright light treatment with 10 000 lux at max
Bright light and gamified intervention	Bright light	A combination of the two
Bright light and gamified intervention	Gamified intervention	A combination of the two
Sleep coaching + bright light	Sleep coaching	A combination of the two
Sleep coaching + bright light	Bright light	A combination of the two
Sleep coaching	Sleep coaching	A new intervention protocol including a personified approach to solve problems and increase motivation for better sleep behavior

Primary Outcome Measures

Name	Time	Method
Circadian body temperature rhythm	8 weeks	iButton measurement from the wrist
Circadian sleep rhythm	8 weeks	Actigraphy (brand GeneActiv)

Secondary Outcome Measures

Name	Time	Method
Depression	8 weeks	Beck Depression Inventory
Mood	8 weeks	Experience sampling method, brand Psymate
Insomnia symptoms	8 weeks	Bergen Insomnia Scale
Anxiety	8 weeks	Generalized Anxiety Disorder questionnaire GAD-7
Sleep problems	8 weeks	Pittsburgh Sleep Quality Index

Trial Locations

Locations (1)

University of Helsinki; 🇫🇮 Helsinki, Finland