Blue-blocking Glasses for Sleep Disorders in Child and Adolescent Psychiatry (BATCAT-pilot)

February 24, 2026 updated by: Helse Fonna

Blue-blocking Glasses for Treating Evening Activation and Sleep Disorders in Child and Adolescent Psychiatry - a Pilot Trans-diagnostic Randomized Controlled Trial.

Sleep problems and regulation difficulties are frequent in the child and adolescent psychiatry population. Insomnia and delayed sleep-wake phase disorders (DSPWD) are highly prevalent, and risk factors for developing more severe illness courses and chronic disorders. Pharmacological treatments of sleep disorders dominate even for the youngest patients but are unsupported by long-term data on outcome and side effects. The majority of non-pharmacological treatment options are composite and resource demanding. The investigators will examine the effects and feasibility of the isolated intervention of evening/night use of blue-blocking glasses/real darkness as adjunctive treatment for insomnia and delayed sleep phase disorder in inpatient and outpatient settings for children and adolecents.

Study Overview

Detailed Description

The investigators will conduct a pilot study to examine the effect and feasibility of blue-blocking glasses as adjunctive treatment for insomnia and delayed sleep phase disorder in child and adolescent inpatients and outpatient settings. If the intervention and protocol are feasible and promising with regards to clinical and physiological effects, the study will provide a sound base for planning larger multicenter RCT's. Blue-blocking glasses are a minimal risk, low-cost intervention, and have potential to improve illness-course through improved sleep and healthier circadian function. The intervention may reduce the need for pharmacological treatment for sleep and circadian disorders and enhance coping strategies for the adolescents and their caregivers. Lastly, the pilot study will yield much needed data on light conditions (daylight and nightlight) in hospital environments for children and adolescents and may contribute to improved sleep conditions in hospital wards.

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age 12-18 years, receiving health-care from child and adolescent mental health services at UPA University Hospital of North Norway, Tromsø or BUP Haugesund Hospital, Haugesund
  • Current Insomnia or DSPD comorbid to one or several pychiatric symptom presentations or diagnoses
  • Able and willing to provide written informed consent
  • Participants aged 12-15,9 years also need consent from both parents/carers
  • Able to comply with protocol
  • Able to discontinue melatonin or BB-glasses if currently used, with at least 3 days washout period

Exclusion Criteria:

  • Not able to comply with protocol for a required minimum of one night
  • Blindness or severely reduced translucency of both eyes
  • Known malformation or damage of optical tract blindness
  • Use of melatonin all formulas that cannot be paused
  • High risk for suicide or self-harm
  • Consent from both partents/carers unlikely (participants age 12-15,9 years)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

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
Experimental: Blue-blocking glasses
Blue-blocking glasses (BB-glasses) or real darkness from 9 p.m. to desired wake-up time + application of dark mode setting on the participant's mobile phone (if not already in use) + registration of brightness on participant's mobile phone screen (%) + treatment as usual
Blue-blocking glasses and night mode on mobile phoneBlue-blocking glasses (BB-glasses) or real darkness from 9 p.m. to desired wake-up time + application of dark mode setting on the participant's mobile phone (if not already in use) + registration of brightness on participant's mobile phone screen (%) + treatment as usual
Other Names:
  • Virtual darkness
  • Orange glasses
  • Amber lenses
  • Blue-blocking light filters
Active Comparator: Dark mode (mobile phone)
Application of dark mode setting on the participant's mobile phone (if not already in use) + registration of brightness on participants' mobile phone screen (%) + treatment as usual
Application of dark mode setting on the participant's mobile phone (if not already in use) + registration of brightness on particpants's mobile phone screen (%) + Treatment as usual
Other Names:
  • Dark mode
  • Night mode

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change form baseline in sleep onset latency (SOL) at 1 week
Time Frame: From baseline to after 1 week of intervention. For outpatients, SOL is also measured after 2 weeks of intervention.
Sleep onset latency (minutes) subjectively assessed in sleep diary and objectively assessed from actigraphy derived sleep parameters. Sleep onset latency describes how long it takes to fall asleep from the moment the person tries to fall asleep to sleep starts.
From baseline to after 1 week of intervention. For outpatients, SOL is also measured after 2 weeks of intervention.
Change from baseline in overnight melatonin production at 1 week
Time Frame: From baseline after 1 week of intervention. For outpatients 6-sulphatoxymelatonin, is also analyzed after 2 weeks of intervention.
Quantity of melatonin metabolite 6-sulphatoxymelatonin (aMT6s) in the total overnight urine volume (µg).
From baseline after 1 week of intervention. For outpatients 6-sulphatoxymelatonin, is also analyzed after 2 weeks of intervention.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Affektive Reactivity Index, relf reported (ARI-S)
Time Frame: From baseline to after 7 days of intervention. For outpatients ARI-S and ARI-P are also assessed after 14 days of intervention.
Self-report form for rating irritability, minimum value 7, maximum value 21, high score indicates worse outcome.
From baseline to after 7 days of intervention. For outpatients ARI-S and ARI-P are also assessed after 14 days of intervention.
Self-report Generalized Anxiety Disorder -7 (GAD-7)
Time Frame: From baseline to after 7 days of intervention. For outpatients, ARI-S and ARI-P are also assessed after 14 days of intervention.
GAD-7 is 7- item self-report questionnaire used for rating general symptoms of anxiety, minimum value 7, maximum value 28, high score indicates worse outcome.
From baseline to after 7 days of intervention. For outpatients, ARI-S and ARI-P are also assessed after 14 days of intervention.
Patient Health Questionnaire (PHQ-9)
Time Frame: From baseline to end of 7 days intervention. For outpatients, PHQ-9 is also assessed after 14 days of intervention.
PHQ-9 is a nine-item self-report questionnaire rating depressive symptoms, minimum value 9, maximum value 36, high score indicate worse outcome.
From baseline to end of 7 days intervention. For outpatients, PHQ-9 is also assessed after 14 days of intervention.
KID-SCREEN-10
Time Frame: From baseline to end of 7 days intervention. For outpatients KIDSCREEN-10 is also assessed after 14 days of intervention.
The KID-SCREEN 10 is self report instrument for assessing quality of life for children and adolescents, minimum value 10, maxium value 50, high score indicates better outcome.
From baseline to end of 7 days intervention. For outpatients KIDSCREEN-10 is also assessed after 14 days of intervention.
Reduced version Horne-Østberg Morningness Eveningess Questionnaire (r-MEQ)
Time Frame: From baseline to after 7 days of intervention. For outpatients r-MEQ is also assessed after 14 days of intervention.
The r-MEQ is a self report questionnaire for assessing morning or evening preference of the sleep/wake cycle, minimum value 4, maximum value 25, high score indicates morning type ("lark"), low score indicates evening type ("owl").
From baseline to after 7 days of intervention. For outpatients r-MEQ is also assessed after 14 days of intervention.
Bergen Insomnia Scale (BIS)
Time Frame: From baseline to after 7 days of intervention. For outpatients, BIS is also assessed after 14 days of intervention.
BIS is a self report questionnaire for diagnostic support (insomnia) and as a contiunous outcome variable. We will use BIS in the inclusion procedure but also repeat it as a subjective outcome measure of sleep problems and daytime function. Minimum value 0, maksimum value 42, high score indicate worse outcome.
From baseline to after 7 days of intervention. For outpatients, BIS is also assessed after 14 days of intervention.
Motor activity
Time Frame: From baseline to after 7 days of intervention. For outpatients, parameters are also assessed after 14 days of intervention.

GENEActive wristworn actigraph with RGB light sensor, (Active Insights, Manchester, UK). Motor activity/motor activity derived sleep outcomes (other than primary outcome) include: Total sleep time (sleep diary, actigraphy)

  • Wake after sleep onset
  • Motor activity in sleep interval
  • Sleep efficency
  • Sleep onset
  • Sleep offset
  • Mid-sleep time
  • Motor activity patterns (circadian, motor variabilty, complexity)
From baseline to after 7 days of intervention. For outpatients, parameters are also assessed after 14 days of intervention.
BioPoint biosensor
Time Frame: During first and 7th day of intervention (inpatients), during 7th and 14 days of intervention (outpatients) For all patients the outcomes will be compared to baseline assessments.
The BioPoint sensor is a physiological multisensor worn as a watch measuring heart rate, heart rate variability, peripheral skin impedance, peripheral temperature
During first and 7th day of intervention (inpatients), during 7th and 14 days of intervention (outpatients) For all patients the outcomes will be compared to baseline assessments.
Affektive Reactivity Index, parent-reported (ARI-P)
Time Frame: From baseline to after 7 days of intervention. For outpatients ARI-S and ARI-P are also assessed after 14 days of intervention.
Proxy (care-giver) report form for rating irritability, minimum value 7, maximum value 21, high score indicates worse outcome.
From baseline to after 7 days of intervention. For outpatients ARI-S and ARI-P are also assessed after 14 days of intervention.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Tone Elise G Henriksen, MD PhD, Helse Fonna

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

February 1, 2026

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2027

Study Registration Dates

First Submitted

January 7, 2026

First Submitted That Met QC Criteria

February 24, 2026

First Posted (Actual)

February 25, 2026

Study Record Updates

Last Update Posted (Actual)

February 25, 2026

Last Update Submitted That Met QC Criteria

February 24, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Data from GENEActiv, Biopoint and LYS-devices may be shared for IPD meta-analyses.

IPD Sharing Access Criteria

IPD will be shared with other researchers upon reasonable request to the principal investigator.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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