NCT03363529

Brief Summary

Depression is a major health challenge, and despite developments in pharmacotherapy and psychotherapy a substantial part of patients will only recover very slowly and incompletely, and 10-25 % of the patients are resistant to treatment. Therefore, new treatment initiatives are in demand. Chronotherapeutics can regulate diurnal rhythms and sleep, and have shown promising results on antidepressant effects. Among chronotherapeutic treatment modalities, Bright Light Therapy (BLT) has been used in treatment of depression and sleep disorders for several decades with both an antidepressant and a sleep improving effect. BLT has also been shown to augment antidepressant therapy. Objectives. The objective of this trial is to investigate the feasibility of a combination of LED-light armatures aiming to mimic sunlight, when installed in the patient rooms of a psychiatric inpatient Ward. Investigators has opted for using a randomized design that will subsequently be tested in a larger clinical trial with depression severity as the primary outcome. In this feasibility study investigators will register the stability of the system, the influence of the light on patients regarding tolerability, comfort, depression level, and sleep. Investigators also so want to measure and collect specific light-data on the Non-image-forming light (NIF) by using specially designed light sensors to capture the spectral distribution of the light. Finally investigators will test the electronic case report form (eCRF) that has been designed for the trial. Design. The design is a randomised controlled feasibility trial with two arms: an active dynamic light trial arm and a standard light trial arm with blinding of depression outcome assessors (Hamilton depression rating scale), data collection, and data analyses. Randomization will be with a rate for active and standard of 2 to 1.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
15

participants targeted

Target at below P25 for not_applicable depression

Timeline
Completed

Started Nov 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 16, 2017

Completed
Same day until next milestone

Study Start

First participant enrolled

November 16, 2017

Completed
20 days until next milestone

First Posted

Study publicly available on registry

December 6, 2017

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 19, 2018

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 19, 2019

Completed
Last Updated

February 25, 2026

Status Verified

February 1, 2026

Enrollment Period

1.1 years

First QC Date

November 16, 2017

Last Update Submit

February 24, 2026

Conditions

Keywords

Dynamic lighting, ipRGC

Outcome Measures

Primary Outcomes (1)

  • Difference in numbers of drop out in the two groups

    Number of patients in the two groups that drop out due to the standard or experimental lighting condition

    Week 4

Secondary Outcomes (2)

  • Visual comfort questionaire

    Week 4

  • Change of depression level from baseline to endpoint

    Change scores from baseline to week 4

Study Arms (2)

Standard

PLACEBO COMPARATOR

This study arm utilizes a standard lighting condition in the patient room

Device: Standard

Dynamic

EXPERIMENTAL

This study arm utilizes a dynamic lighting from special designed lightfixtures in the ceiling and window sill.

Device: Dynamic light

Interventions

Dynamic lighting is light that changes in intensity and spectral distribution during the day

Dynamic
StandardDEVICE

Standard lighting is non-dynamical light corresponding to standard hospital lighting.

Standard

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Major depression disorder
  • Age \> 18 years
  • Informed consent and Danish speaking.

You may not qualify if:

  • Severe suicidality
  • Actual psychotic state
  • Bipolar disorder
  • Patient is subject to coercive measures of any kind.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mental Health Centre Copenhagen

Copenhagen, Denmark, 2100, Denmark

Location

Related Publications (1)

  • Volf C, Aggestrup AS, Svendsen SD, Hansen TS, Petersen PM, Dam-Hansen C, Knorr U, Petersen EE, Engstrom J, Hageman I, Jakobsen JC, Martiny K. Dynamic LED light versus static LED light for depressed inpatients: results from a randomized feasibility trial. Pilot Feasibility Stud. 2020 Jan 15;6:5. doi: 10.1186/s40814-019-0548-9. eCollection 2020.

MeSH Terms

Conditions

DepressionSleep Disorders, Circadian Rhythm

Interventions

Dynamic Light ScatteringReference Standards

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorChronobiology DisordersNervous System DiseasesDyssomniasSleep Wake DisordersOccupational DiseasesMental Disorders

Intervention Hierarchy (Ancestors)

Scattering, RadiationChemistry Techniques, AnalyticalInvestigative TechniquesWeights and Measures

Study Officials

  • Klaus Martiny, DMSc, PhD

    Mental Health Centre Copenhagen, Bispebjerg and Frederiksberg Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Hamilton depression interview is done by external assessor blinded to condition
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Standard versus dynamic lighting
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Clinical Psychiatry

Study Record Dates

First Submitted

November 16, 2017

First Posted

December 6, 2017

Study Start

November 16, 2017

Primary Completion

December 19, 2018

Study Completion

March 19, 2019

Last Updated

February 25, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations