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NCT Number: NCT05808179

Shifting Sleep Timing in Teens

The goal of this clinical trial is to determine whether a combination of a novel lighting intervention and a behavioral intervention are able to increase total sleep time in adolescents. The main questions this trial aims to answer are whether this combination therapy is able to meaningfully increase total sleep time in adolescents, and do so over a sustained period of time, and whether such a changes is associated with concomitant changes in mood and cognitive performance.

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Key information

Conditions

Sleep Insufficiency Adolescent Behavior Behavior Dyssomnias Mental Disorders Nervous System Diseases Neurologic Manifestations Pathological Conditions, Signs and Symptoms Signs and Symptoms Sleep Sleep Deprivation Sleep Wake Disorders

Age range

14 year–18 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Stanford University

Stanford, California, 94305, United States

Location status: Recruiting

Location contact

Denise Zhou

CONTACT

[email protected]

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged 14-18 and a full-time student in grades 9-12
  • Male or female
  • Willing and with a schedule permitting them to go to bed at an earlier time
  • Planning on sleeping at home in their bedroom for at least 75% of the study

Exclusion criteria

  • Currently taking any medications (including over-the-counter medications, e.g., melatonin) specifically for the treatment of sleep disorders
  • Sleep only in the prone (face-down) position

Treatment and study plan

Light

Device

Broad-spectrum white light flashes are ~4000 lux, 2 msec long, occur every 20 s

CBT

Behavioral

Cognitive behavioral therapy including psychoeducation, sleep hygiene, stimulus control, activity scheduling, motivational interviewing

Sham light

Device

Broad-spectrum white light flashes are ~4000 lux, 2 msec long, occur once

Primary outcomes

  1. Total sleep time

    Time frame: 20 weeks

    Average nightly total sleep time

Secondary outcomes

  1. Melatonin timing

    Time frame: 8 weeks

    Timing of the onset of salivary melatonin

  2. Mood

    Time frame: 20 weeks

    Score on the Center for Epidemiologic Studies Depression Scale for Children. Scored 0-60 with higher scores indicating greater depressive symptomatology.

Study contacts

Contact information is provided by the study sponsor or research team.

Jamie Zeitzer, PhD

CONTACT

[email protected]

6504935000

Sponsors and collaborators

Lead sponsor

Stanford University

Other

Collaborators

  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Registry information

Official study title

Passive Phototherapy to Improve Sleep in Teens

Important dates

Study start
2022
Primary completion
2026
Study completion
2026
First posted
Apr 11, 2023
Registry last updated
Jun 24, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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