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Can bright light beat insomnia? a new trial investigates

NCT ID NCT05715411

Symptom relief Sponsor: University Hospital, Strasbourg, France Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 20, 2026 · Last updated Aug 21, 2026 · Updated 1 time

Summary

This trial tests whether wearing light therapy glasses can help people with insomnia fall asleep faster. Adults aged 30 to 60 with insomnia will use the glasses or a placebo version, and researchers will measure sleep latency using actigraphy. The goal is to see if light exposure is a viable non-drug alternative to improve sleep onset.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
light therapy via portable glasses
What this could lead to
If effective, light therapy could offer a drug-free, easy-to-use treatment for insomnia, potentially helping many people who don't respond to current therapies.
What could go wrong
This is a small, early-stage trial, and results may not apply to everyone. Light therapy may not improve sleep latency for all participants, and individual responses can vary.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 66 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2024

Expected to finish

Aug 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

30 to 60 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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Conditions

The condition(s) this trial relates to.

insomnia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Insomnia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Hôpitaux Universitaires de Strasbourg

    RECRUITING

    Strasbourg, 67000, France

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