Study of Conscious Behavior Under Low-frequency Deep Brain Stimulation in Chronic and Severe Post-coma Disorders of Consciousness (Post-coma DBS)

August 3, 2026 updated by: University Hospital, Clermont-Ferrand
Chronic post-coma consciousness impairment is a severe handicap. Preliminary studies suggest that deep brain stimulation of the thalamic-tegmental reticular system could improve consciousness disorders, and facilitate the emergence of conscious behavior. The aim of this protocol is to study the effects of deep brain stimulation on conscious behavior, using a patient-based anatomic mapping for stereotactic surgery, and the Coma Recovery Scale-Revised (CRS-R) as clinical assessment criterion.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Total length of inclusion for a patient: 10 months (2 months before electrodes implantation, 8 months after).

Study Type

Interventional

Enrollment (Actual)

5

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Clermont-Ferrand, France, 63003
        • CHU Clermont-Ferrand

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients stably in Vegetative state or Minimally conscious state, since at least 6 months after cerebrovascular accident and 1 year after traumatic brain injury.

Exclusion Criteria:

  • Cerebral death, Locked-In Syndrome, blindness, deafness

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: deep brain stimulation
Other: Implantable neurostimulation system

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
CRS-R scores (Coma Recovery Scale-Revised)
Time Frame: after 2 months and after 7 months
after 2 months and after 7 months

Secondary Outcome Measures

Outcome Measure
Time Frame
signs of awakening at night
Time Frame: during the 10 months of the study
during the 10 months of the study
zerit burden interview
Time Frame: at 1 month and at 10 months
at 1 month and at 10 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital, Clermont-Ferrand

Collaborators

Medtronic
Fondation de l'Avenir

Investigators

  • Principal Investigator: Jean-Jacques LEMAIRE, University Hospital, Clermont-Ferrand

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 1, 2012

Primary Completion (Actual)

April 1, 2016

Study Completion (Actual)

April 1, 2016

Study Registration Dates

First Submitted

October 29, 2012

First Submitted That Met QC Criteria

October 30, 2012

First Posted (Estimated)

October 31, 2012

Study Record Updates

Last Update Posted (Actual)

August 5, 2026

Last Update Submitted That Met QC Criteria

August 3, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CHU-0126
  • 2011-A00300-41

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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