ClinicalTrials.gg
Status unknownNCT04798456PerBrainUpdated Mar 15, 2021

Aiming for a Better Understanding and Improvement of the Diagnosis and Prognosis of Patients With Disorders of Consciousness Through Multimodal Observations

An observational study in Disorders of Consciousness, Minimally Conscious State and Unresponsive Wakefulness Syndrome, sponsored by Paris Brain Institute (ICM). Status unknown at 4 sites in 4 countries. Open to participants aged 18 Years to 85 Years. Per ClinicalTrials.gov, last updated 2021-03-15.

Sponsored by Paris Brain Institute (ICM) · Observational

The sponsor has not verified this record recently (last verified Mar 2021), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
150
Ages
18 Years to 85 Years
Sex
All
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Study summary

Improved treatment of severe brain injuries has resulted in increased survival rates. While some of these patients regain consciousness after a transient state of coma, others may develop a disorder of consciousness (DoC). Diagnosis of DoC currently relies on standardized behavioral assessment. The importance of accuracy in such diagnosis cannot be overstated, as it guides critical decisions on treatment (including pain management), and could underlie end-of-life decisions. Despite this importance, current behavioral diagnosis often fails, if because of the major sensory and motor deficits associated with DoC, or because of the heterogeneous etiology and pathophysiology associated with the condition. Finally, the need for accurate diagnosis and prognosis transcends the needs of the patients alone: caregiving of these patients is very stressful, principally for the large uncertainty associated with them. Thus, more accurate diagnosis and prognosis provide major relief for caregivers, and paradoxically, even if the news is not "good". For all these reasons it is critical to developing personalized diagnosis and prognosis prediction tools that permit a stratified analysis at the single-patient level. The PerBrain Project will benefit from the multidisciplinary partners' expertise, and the unique opportunity to perform longitudinal assessments in four clinical sites through both established and novel electrophysiological, neuroimaging, and physiological techniques. Based on the collected data, the investigators will develop a multimodal personalized diagnostic tool for DoC patients using state-of-the-art computational tools, such as machine learning, in order to better determine the current state (diagnosis) and future outcome (prognosis). The overall aim of this project will provide for a better understanding of the pathophysiological mechanisms in DoC, which will, in turn, allow personalized rehabilitation strategies, and improved single-patient predictions of state and prognosis.

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Conditions studied

  • Disorders of Consciousness
  • Minimally Conscious State
  • Unresponsive Wakefulness Syndrome
  • Caregivers

Keywords

  • Clinical Neuroscience
  • Disorders of Consciousness
  • Neuroimaging
  • Brain-Body interactions
  • Multimodal precision diagnosis
  • Machine Learning
  • Caregivers well-being
  • Unresponsive wakefulness syndrome
  • Minimally conscious state
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In context

Consciousness Disorders

290 studies on the registry are indexed under Consciousness Disorders; 109 are open to participants now.

This study's planned enrollment of 150 is above the median of 79 across 95 observational studies indexed under Consciousness Disorders.

Browse Consciousness Disorders studies →

Lead sponsor

Paris Brain Institute (ICM) is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

intensive care units and rehabilitation centres

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

  • Recruitment is taking place in:

    • France, Paris, Pitie-Salpetriere Hospital;
    • Italy, Milan, Dipartimento di Cura e Riabilitazione delle Gravi Cerebrolesioni Acquisite (GCA);
    • Israel, Raanana, Loewenstein Hospital;
    • Germany, Munich: intensive care units of the University Clinic LMU Munich and Therapiezentrum Burgau

Inclusion criteria

  • Disorder of consciousness (UWS and MCS) patients and their caregiver/legal guardian

    • Patient age: 18-85 years
    • signed by legal guardian

Exclusion criteria

  • Pregnancy

    • Pre-existing coma/VS/MCS
    • Continuous medical sedation (induced coma)
    • Use of barbiturates for sedation
    • Terminal malignant disease, as it increases the likelihood of not being alive for the 12-month follow-up
    • Prediction of a highly unlikely survival until the time of the 12-month follow-up due to conditions such as multi-organ failure based on the judgement of a critical care physician
    • Withdrawal of life-support
    • Palliative care setting
    • Epileptic seizures (TMS )
    • MRI contraindications (magnetic material in or on person such as pacemakers, cochlear implants, shell splinters, metal plates, certain prosthetic joints/limbs, copper-based intrauterine device, magnetic clips or stents, some large tattoos)
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
150 participants (estimated)
Patient registry
No

Groups and cohorts

  • Patients with DoC

    Behavioral: Coma scales · Diagnostic Test: Imaging, electrophysiology, body signals, and brain stimulation

  • Caregivers/ legal guardian of patients with DoC

    Behavioral: Questionnaires

Interventions

  • BehavioralComa scales

    CRS-R and GOSE

  • Diagnostic testImaging, electrophysiology, body signals, and brain stimulation

    MRI, fMRI, EEG, TMS-EEG, Olfaction, Respiration, EKG

  • BehavioralQuestionnaires

    several questionnaires and an interview with the caregiver

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What researchers measure

Primary outcomes

  1. Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients

    Coma Recovery Scale Revised (CRS-R) \[0-23\] Higher score better outcome

    Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury

  2. Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients

    Extended Glasgow Outcome Scale (GOSE) \[1-8\] Higher score better outcome

    Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury

  3. Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients

    Quantitative high density EEG (64 Electrodes)

    Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury

  4. Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients

    Standard EEG and transcranial magnetic stimulation (TMS-EEG)

    Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury

  5. Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients

    Structural MRI and functional MRI (without contrast agent)

    Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury

  6. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Sociodemographic characteristics

    Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

  7. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Brief Illness Perception Questionnaire (BIPQ) \[0-80\] Higher score more positive illness representation

    Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

  8. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Euro-Qol 5 (EQ-5D61) \[0-15\] higher values indicating better perceived quality of life.

    Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

  9. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Adult Carer Quality of Life Questionnaire (ACQoL24) \[0-120\] higher values better quality of life

    Time frame: Changes from 0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

  10. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Hospital Anxiety and Depression Scale (HADS) \[0-52\] higher scores indicating higher levels of anxiety and depression.

    Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

  11. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Resilience (RS14) \[14-98\] higher scores relate to higher resilience levels.

    Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

  12. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Sense of coherence (SOCS) \[13-91\] higher scores indicate higher sense of coherence.

    Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

  13. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Treatment choices survey \[28-140\] higher score indicates a stronger agreement with the treatment and higher reason to take a given treatment decision

    Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

  14. Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients

    Semi-structured qualitative Interview based on a thematic grid for brochure development

    Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)

Secondary outcomes

  1. Caregivers: develop a brochure/guide to be applied in clinical practice for the effective communication of technology-based results

    Working closely with Patient organizations/ patient representatives: Representatives of organizations ("Schädel- Hirnpatienten in Not e.V." in Germany) will be consulted in focus groups to jointly discuss the met and unmet needs and communication problems reported by caregivers in the study. Additionally, we will conduct a semi-structures interview with the caregivers. This information will help to devise with the research team effective communication strategies to be implemented in a brochure for the presentation of multimodal technology-based DOC testing.

    Time frame: 12 months

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Study locations

4 of 4 sites recruiting
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References and documents

Publications

  • Giacino JT, Kalmar K. Diagnostic and prognostic guidelines for the vegetative and minimally conscious states. Neuropsychol Rehabil. 2005 Jul-Sep;15(3-4):166-74. doi: 10.1080/09602010443000498. PubMed 16350959 ↗
  • Raimondo F, Rohaut B, Demertzi A, Valente M, Engemann DA, Salti M, Fernandez Slezak D, Naccache L, Sitt JD. Brain-heart interactions reveal consciousness in noncommunicating patients. Ann Neurol. 2017 Oct;82(4):578-591. doi: 10.1002/ana.25045. Epub 2017 Oct 11. PubMed 28892566 ↗
  • Arzi A, Rozenkrantz L, Gorodisky L, Rozenkrantz D, Holtzman Y, Ravia A, Bekinschtein TA, Galperin T, Krimchansky BZ, Cohen G, Oksamitni A, Aidinoff E, Sacher Y, Sobel N. Olfactory sniffing signals consciousness in unresponsive patients with brain injuries. Nature. 2020 May;581(7809):428-433. doi: 10.1038/s41586-020-2245-5. Epub 2020 Apr 29. PubMed 32461641 ↗
  • Casali AG, Gosseries O, Rosanova M, Boly M, Sarasso S, Casali KR, Casarotto S, Bruno MA, Laureys S, Tononi G, Massimini M. A theoretically based index of consciousness independent of sensory processing and behavior. Sci Transl Med. 2013 Aug 14;5(198):198ra105. doi: 10.1126/scitranslmed.3006294. PubMed 23946194 ↗
  • Engemann DA, Raimondo F, King JR, Rohaut B, Louppe G, Faugeras F, Annen J, Cassol H, Gosseries O, Fernandez-Slezak D, Laureys S, Naccache L, Dehaene S, Sitt JD. Robust EEG-based cross-site and cross-protocol classification of states of consciousness. Brain. 2018 Nov 1;141(11):3179-3192. doi: 10.1093/brain/awy251. PubMed 30285102 ↗
  • Vogler J, Klein AM, Bender A. Long-term health-related quality-of-life in patients with acquired brain injury and their caregivers. Brain Inj. 2014;28(11):1381-8. doi: 10.3109/02699052.2014.919536. Epub 2014 Jun 19. PubMed 24945467 ↗

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 15, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04798456
Lead sponsor
Paris Brain Institute (ICM)
Responsible party
Jacobo Sitt (Research Director, INSERM, Paris Brain Institute (ICM)) — Principal investigator
First posted
Mar 15, 2021
Start date
Jun 1, 2020
Primary completion
Jun 2023 (estimated)
Completion
Jun 2023 (estimated)
Last update
Mar 15, 2021

Study contacts

Jacobo Sitt, MD/PhD
Contact
jacobo.sitt@icm-institute.org
+33 (0)1 57 27 40 00
Benjamin Rohaut, MD/PhD
Contact
benjamin.rohaut@icm-institute.org
+33 (0)1 57 27 40 00

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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