NCT07168954

Brief Summary

A pair of smart light therapy glasses (Lumos Glasses) was engineered to control the amount of blue light exposure at a person's eyes through a battery powered light source and nano-coating that reflect blue light. The research aims to study the effects of this pair of light therapy glasses on depression and sleep. In addition, the research aims to study the effects of duration of use and its correlation with depression and sleep improvements.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
96

participants targeted

Target at P50-P75 for not_applicable depression

Timeline
Completed

Started Sep 2024

Shorter than P25 for not_applicable depression

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

Study Start

First participant enrolled

September 3, 2024

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 14, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 14, 2025

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 4, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 11, 2025

Completed
Last Updated

September 11, 2025

Status Verified

August 1, 2025

Enrollment Period

10 months

First QC Date

September 4, 2025

Last Update Submit

September 4, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Montgomery Asberg Depression Rating Scale (MADRS) Improvements

    Improvement of depression rating post intervention

    8 weeks, assessed by clinical team at week 0, 4 and 8

  • PROMIS-Sleep Disturbance-Short Form

    Improvement of patient reported sleep rating post intervention

    8 weeks, assessed by clinical team at week 0, 4 and 8, self assessed at week 1, 2 ,3, 5, 6, 7

Secondary Outcomes (2)

  • Reaction Time Test

    8 weeks, self assessed weekly via the smartphone app at 8pm

  • Memory test

    8 weeks, self assessed weekly via the smartphone app at 8pm

Study Arms (2)

Treatment group

ACTIVE COMPARATOR

The treatment group receives fully operational light therapy glasses, with an optimal light output of 500-700 melanopic lux during full power. The users are recommended to wear the glasses for as long as possible during the day, with a minimum requirement of 20 minutes per day. After 8 weeks, this group is cross-overed to receive the placeobo (low dose 50-70 melanopic lux) treatment for another 8 weeks.

Device: Lumos Glasses

control group

PLACEBO COMPARATOR

The control group receives placebo operational light therapy glasses, operating at 50-70 melanopic lux during full power. The users are recommended to wear the glasses for as long as possible during the day, with a minimum requirement of 20 minutes per day. At week 8, the glasses ramp up to the full 500-700 melanopic lux and becomes equivalent to the active comparator group.

Device: Lumos Glasses

Interventions

The Lumos Glasses provided tailored blue light therapy and blue light filtering based on the time of day and the user's ambient light conditions. It combines the effect of bright blue light therapy and blue light blocking.

Treatment groupcontrol group

Eligibility Criteria

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

You may qualify if:

  • Adults, any gender, 18+ years old, residing in Ontario Montgomery Asberg Depression Rating Scale Score \> 7 or PROMIS score \>25 Spend on average less than 2 hours outdoors daily.

You may not qualify if:

  • MADRS Score above 45, or MADRS suicide score is 5 or 6 People with eye disorders or previous eye surgeries. People who have cataracts, macular degeneration, diabetic retinopathy, or other eye disorders. People taking light sensitizing medication. People with bipolar, psychotic disorders or a history of these disorders. People with epilepsy, or history of epilepsy. People with electronic implants, such as pacemakers. Prescription glasses wearers, except for people who can self-supply contact Page 6 of 40 lenses for the duration of the study. People who do not have an iOS or Android based smartphone Shift workers who work night shift or rotating shifts with night shifts

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Waterloo

Waterloo, Ontario, N2L3G1, Canada

Location

Related Links

MeSH Terms

Conditions

DepressionParasomnias

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorSleep Wake DisordersNervous System DiseasesMental Disorders

Study Officials

  • Jonathan M Oakman, Phd, Psychology

    University of Waterloo

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Fully blinded study with participants and clinical assessment team blinded. Investigators and outcome assessors access only coded data that masks the interventional after the study to perform analysis.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The intervention group receives full dose light therapy for the full 8 weeks. The control group receives placebo light therapy from week 1 to week 4, followed by full dose light therapy from week 4 to week 8
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 4, 2025

First Posted

September 11, 2025

Study Start

September 3, 2024

Primary Completion

July 14, 2025

Study Completion

July 14, 2025

Last Updated

September 11, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will share

Anonymized participant data will be shared, along with study protocol and statistical analysis methods

Shared Documents
STUDY PROTOCOL, SAP, CSR
Time Frame
The data will be available upon publication and will be stored for 25 years
Access Criteria
Open access

Locations