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Completed

NCT Number: NCT02478528

Study of Effects of Light on the Vigilance and Cognitive Performance Following a Night Without Sleep

Sleep disorders are a major public health issue, affecting 1 in 6 French. The medical impact at the individual level but also social and economic level (loss of productivity, morbidity, mortality) emphasize the need for one hand, to improve the investigators' understanding of these disorders in order to develop appropriate therapeutic tools and on the other hand, to increase the investigators' support abilities of patients with these disorders.

The investigators' team of unity sleep from Strasbourg University Hospitals, in collaboration with the UPR 3212 CNRS team, is working on the development and adjustment of new concepts and tools to compensate the investigators' sleep debt in order to apply them to patients with sleep disorders and persons who face with sleep restriction.

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Key information

Conditions

Healthy Volunteers

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Unité du Sommeil - Hôpitaux Universitaires de Strasbourg

Strasbourg, 67091, France

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Energy-Light lamp

Device

Exposure of the subject, at 5am, to the light source of Energy-Light lamp (Philips)

Luminettes lamp

Device

Exposure of the subject, at 5am, to the light source of Luminettes lamp (Lucimed)

Control condition

Other

No exposure of the subject to any light sources (control condition)

Primary outcomes

  1. Analysis of the perception of fatigue

    Time frame: Compare during the 3 sessions : energy-light lamp, luminettes lamp and control condition

    Karolinska Sleepiness Scale 3 sessions :

  2. Analysis of the circadian variation of melatonin and cortisol secretion

    Time frame: Compare during the 3 sessions : energy-light lamp, luminettes lamp and control condition

    cortisol and melatonin dosage

Secondary outcomes

  1. Cognitive performance

    Time frame: Compare during the 3 sessions : energy-light lamp, luminettes lamp and control condition

    neurobehavioral tests

Sponsors and collaborators

Lead sponsor

University Hospital, Strasbourg, France

Other

Registry information

Acronym: LUMI

Important dates

Study start
2015
Primary completion
2015
Study completion
2015
First posted
Jun 23, 2015
Registry last updated
Dec 22, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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