Light Therapy in Disorders of Consciousness: Behavioral, Neuroimaging and (Neuro)Physiological Assessments.

NCT ID: NCT03174119

Last Updated: 2018-10-23

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-02-28

Study Completion Date

2021-01-31

Brief Summary

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In this randomized, double-blind, placebo controlled project, the investigators would like to assess the effect of a specific light, as compared to placebo light, on wakefulness (circadian rhythms, homeostasy, sleep-wake cycle), awareness (perceptual and self consciousness), cognition (attention, memory) and underlying brain activity (electrophysiology and neuroimaging)

Detailed Description

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The investigators will use behavioral (CRS-R, CAP, actimeter, brainstem reflexes), physiological (body core temperature, saliva, urine, heart rate, blood sample), neuroimaging and neurophysiological tools (PET, fMRI, TMS-EEG, resting-state and auditory paradigm EEG) before, during and after treatment.

Conditions

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Disorder of Consciousness

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Real light exposition by the mean of Luminette®

All patients will be exposed to a real light (1500 lux, 470 nm) during the treatment phase, 3 times per day (morning, afternoon and evening) for 60 minutes each via goggles providing light at the eyes level. Meanwhile, different assessments will be performed in order evaluating the potential effects of provided light in comparison to placebo ligh. Patients will be given behavioral assessments (Coma Recovery Scale-Revised, Nociception Coma Scale-Revised, brainstem reflexes,...), physiological (body core temperature, saliva, urine, heart rate, blood sample), neuroimaging and neurophysiological tools (PET, fMRI, TMS-EEG, resting-state and auditory paradigm EEG) before, during and after treatment.

Group Type ACTIVE_COMPARATOR

Light therapy - active

Intervention Type DEVICE

Active light will be used for one week, as compared to placebo light.

Placebo light exposition by the mean of Luminette®

All patients will also be exposed to a placebo light (80 lux, 470 nm) during the treatment phase, 3 times per day (morning, afternoon and evening) for 60 minutes each via goggles providing light at the eyes level. Meanwhile, different assessments will be performed in order evaluating the potential effects of provided light in comparison to placebo light. Patients will be given behavioral assessments (Coma Recovery Scale-Revised, Nociception Coma Scale-Revised, brainstem reflexes,...), physiological (body core temperature, saliva, urine, heart rate, blood sample), neuroimaging and neurophysiological tools (PET, fMRI, TMS-EEG, resting-state and auditory paradigm EEG) before, during and after treatment.

Group Type PLACEBO_COMPARATOR

Placebo light

Intervention Type DEVICE

Placebo light will be used for one week, as compared to real light exposition.

Interventions

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Light therapy - active

Active light will be used for one week, as compared to placebo light.

Intervention Type DEVICE

Placebo light

Placebo light will be used for one week, as compared to real light exposition.

Intervention Type DEVICE

Other Intervention Names

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Real light stimulation

Eligibility Criteria

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Inclusion Criteria

* disorder of consciousness
* 6 weeks post-injury

Exclusion Criteria

* dysautonomia
* acute illnesses (infections with fever)
* medication that is known to affect circadian rhythmicity (melatonin)
* uncorrected sensorial deficits or documented history of significant neurological, neurosurgical, developpemental or psychiatric disorders
* previously known cerebral lesions prior to the brain's insult that lead to disorder of consciousness
* any contraindication to MRI, EEG, TMS-EEG, or PET (e.g., electronic implanted devices, active epilepsy, external ventricular drain)
* not medically stable
Minimum Eligible Age

16 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Liege

OTHER

Sponsor Role lead

Responsible Party

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Olivia Gosseries

Dr

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Steven Laureys, 1

Role: STUDY_DIRECTOR

University of Liege

Central Contacts

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Séverine Blandiaux, 1

Role: CONTACT

+3243663915

Olivia Gosseries, 1

Role: CONTACT

Other Identifiers

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OGosseries

Identifier Type: -

Identifier Source: org_study_id

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