Assessment of Light Therapy in Insomnia Disorder (InsomLum)

August 18, 2026 updated by: University Hospital, Strasbourg, France

Sleep disorders represent a major public health issue and the leader in these disorders is insomnia with 10 to 15% of subjects in the general population reporting symptoms of insomnia with a daytime impact. In addition to being very common, insomnia leads to an increase in morbidity and mortality and weighs on healthcare systems worldwide. Despite this public health context, insomnia is underdiagnosed and rarely treated. Hypnotics have proven efficacy but with a risk of dependence and pharmacotolerance which appears within a few weeks. Cognitive behavioral therapy (CBT) has a good level of evidence and is now a benchmark treatment for the management of insomnia. Unfortunately, not all patients adhere to or respond to these procedures, which cannot be implemented for many of them either. There is therefore a need to identify other alternative therapeutic strategies, and we believe that exposure to light is a promising treatment.

In this perspective, it seems interesting to assess the effect of the propensity to fall asleep with an exposure to light therapy in patients suffering from insomnia.

In order to be in optimal ecological conditions, we want to use a portable light therapy device which allows easy, acceptable and ambulatory exposure.

If the lighttherapy is confirmed in insomnia under ecological conditions, this would make it possible to propose a new non-drug treatment, easy to access and on a large scale

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
66

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • France
      • Strasbourg, France, 67000
        • Recruiting
        • Hôpitaux universitaires de Strasbourg
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

30 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patient aged 30 to 60 years
  • Insomnia disorders (ICSD-3) with sleep latency >30min - 3 times a week
  • Patient able to understand the objectives and risks associated with the research and to give informed dated and signed consent
  • Patient affiliated to a social health insurance scheme
  • For women of childbearing age, effective contraceptive measure for the duration of the research (hormonal contraception, IUD).

Exclusion Criteria:

  • - Shift work in the year preceding inclusion
  • Trans meridian travel (> 2 time zones) in the month preceding inclusion
  • Patient in exclusion period determined by a previous or ongoing study
  • Impossibility of giving the patient informed information (emergency patient, difficulty understanding the patient)
  • Patient under judicial protection
  • Patient under guardianship or curatorship
  • For a woman of childbearing age: ongoing pregnancy or breastfeeding
  • Drug treatment which can disturb sleep or the measurement of DLMO: corticosteroids by general route, beta-blockers in the evening, exogenous melatonin.
  • Phase delay syndrome defined according to the criteria of the international classification of ICSD-3
  • Restless legs syndrome with IRLS score> 20
  • Other psychiatric disorders or addictive disorder (screening with the MINI structured interview)

  • Other medical conditions not stabilized (detected by clinical interview), only the diseases appearing in the following list will constitute a criterion of non-inclusion:

    • Chronic allergies
    • Neurological disorders
    • cardiovascular, respiratory, gastrointestinal, hematopoietic, visual diseases
    • diseases of the immune system
    • kidney and urinary tract diseases
    • endocrine and metabolic diseases
    • infectious diseases
    • epilepsy

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: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Control
Other: Placebo with light therapy glasses
Placebo
Experimental: Light therapy
Other: light therapy with light therapy glasses
light therapy

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change Sleep latency
Time Frame: At day 0 and Day 44
Actimetry is used to compare the sleep latency
At day 0 and Day 44

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change Daytime sleepiness
Time Frame: At day 0 and Day 90
Epworth Scale is used to compare the sleepiness in baseline to completion of the procedure and three month after intervention
At day 0 and Day 90
Change Daytime sleepiness
Time Frame: At day 0 and Day 90
Karolinska Sleepiness Scale is used to compare the sleepiness in baseline to completion of the procedure and three month after intervention
At day 0 and Day 90
Change Circadian rythms
Time Frame: At day 0 and Day 90
Circadian markers melatonin is measured in baseline, completion of the procedure and three month after intervention
At day 0 and Day 90

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University Hospital, Strasbourg, France

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Patrice BOURGIN, MD, Hôpitaux universitaires de Strasbourg

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 28, 2024

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 4, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 2, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 8, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 20, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 18, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 7680

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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