Photomotor Reflex to Evaluate the Role of the Non-visual Effects of Light in Neurological, Psychiatric and Ophthalmological Pathologies

NCT ID: NCT03811964

Last Updated: 2025-08-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

726 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-01-22

Study Completion Date

2027-02-28

Brief Summary

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The light has visual and non-visual effects on organism and can act on the behavior, the mood, the cognition and the sleep. These effects are mediated by "classical" retina photoreceptors which allow vision (rods, cones) but also melanopsin cells. The non-visual effects of light seems to be altered in many neurological, psychiatric or ophtalmological conditions but their exact role in the pathogenesis remains poorly understand. The purpose of the study is to increase our knowledge of the non-visual effects of light and establish new therapeutic applications

Detailed Description

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Conditions

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Sleep Disorders Neurological Pathologies Psychiatric Pathologies Ophthalmological Pathologies

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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primary sleep-wake disorder

Subjects with primary sleep-wake disorder

Group Type OTHER

Specific light exposures

Intervention Type OTHER

Specific light exposures using light in a wide range of intensities or different light/dark regimens

neurological pathology

subjects presenting a neurological pathology with disorder of the controls of the wake and the sleep

Group Type OTHER

Specific light exposures

Intervention Type OTHER

Specific light exposures using light in a wide range of intensities or different light/dark regimens

psychiatric pathology

subject presenting a psychiatric pathology with disorder of the controls of the wake and the sleep

Group Type OTHER

Specific light exposures

Intervention Type OTHER

Specific light exposures using light in a wide range of intensities or different light/dark regimens

ophthalmological pathology

subject presenting an ophthalmological pathology with possible alteration of the photoreception and / or phototransduction

Group Type OTHER

Specific light exposures

Intervention Type OTHER

Specific light exposures using light in a wide range of intensities or different light/dark regimens

photosensitivity

subjects with photosensitivity with regulation disorder of sleep and wake

Group Type OTHER

Specific light exposures

Intervention Type OTHER

Specific light exposures using light in a wide range of intensities or different light/dark regimens

group control

healthy subject

Group Type OTHER

Specific light exposures

Intervention Type OTHER

Specific light exposures using light in a wide range of intensities or different light/dark regimens

Interventions

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Specific light exposures

Specific light exposures using light in a wide range of intensities or different light/dark regimens

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Man or woman
* Aged 18 years or older
* Subject having signed a free and informed consent
* Subject affiliated to a social protection scheme Arm 1 :Subjects with primary sleep-wake disorder Arm 2 : subjects presenting a neurological pathology with disorder of the controls of the wake and the sleep Arm 3 : subject presenting a psychiatric pathology pathology with disorder of the controls of the wake and the sleep Arm 4 : subject presenting an ophthalmological pathology with possible alteration of the photoreception and / or phototransduction Arm 5 : subjects with photosensitivity with regulation disorder of sleep and wake Arm 6 : healthy subject

Exclusion Criteria

Age-Related Macular Degeneration (AMD) and all maculopathies (retinopathies pigmentosa, macular involvement of diabetes)

* Cataract with significant vision loss \<5/10
* Chorioretinal neovascularization
* Subject in exclusion period determined by previous or current study
* Impossibility to give the subject information enlightened (subject in emergency situation, difficulties of understanding the subject, ...)
* Subject under the protection of justice
* Subject under guardianship or curatorship
* Pregnancy / Breastfeeding
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University Hospital, Strasbourg, France

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Bourgin Patrice, MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Strasbourg, France

Locations

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University Hospital, Strasbourg, France

Strasbourg, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Bourgin Patrice, MD

Role: CONTACT

03 88 11 64 30 ext. 0033

Facility Contacts

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Bourgin Patrice, MD

Role: primary

03 88 11 64 30 ext. 0033

Other Identifiers

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6791

Identifier Type: -

Identifier Source: org_study_id

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