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Bright idea: light lamps tested for All-Nighter brain boost

NCT ID NCT02478528

Knowledge-focused 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 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether exposure to special light lamps at 5am could help people stay alert and think clearly after a full night without sleep. Researchers compared two different light devices to no light at all in 18 healthy adults. The goal was to see if light could reduce fatigue and improve cognitive performance, which might eventually help people with sleep disorders.

What this could mean

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

Active substance
Energy-Light lamp and Luminettes lamp (light therapy devices)
What this could lead to
If successful, this could point toward simple light-based tools to help people stay alert after poor sleep.
What could go wrong
This is a very small, early study on healthy volunteers, not patients. Results may not apply to real-world sleep disorders or lead to a treatment.

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

18 people

The number who actually took part.

Start date

May 2015

Finished

Jun 2015

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

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Man or woman * Age from 18 to 40 years * With a Body Mass Index (BMI) between 17 and 30 kg m-2 * Healthy volunteer determined by clinical examination and psychological interview * Agreeing to abstain from caffeine, nicotine, alcohol, psychotropic drugs, cannabis or other drugs, the week before the start of Stage 2 of the study until the end of the study * Dated and signed informed consent * Subjet affiliated to a social security scheme * Subject has been informed about the results of the medical examination Exclusion Criteria: * Participation in other clinical trials in the month preceding the inclusion * Shift work in the year before inclusion * Cons-indications to the use of the medical device * Ocular disease * Unable to give informations to the subject (subject in an emergency situation, difficulties in understanding, ...) * Subjet under judicial protection * Subject under guardianship or curatorship * pregnancy * breastfeeding

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As listed by the trial registrant

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

Healthy volunteers

Contacts and locations

Locations

  • Unité du Sommeil - Hôpitaux Universitaires de Strasbourg

    Strasbourg, 67091, France

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