Impact of Cardiac Blood Flow on Cerebral Blood Flow in Patients With Severe Traumatic Brain Injury (DEBITC)

August 14, 2015 updated by: University Hospital, Grenoble
Severe traumatic brain injury with increased intracranial pressure can lead to decreased cerebral blood flow. Low cerebral blood flow is responsible for secondary lesions, leading to bad prognosis. It is not yet established whether increasing cardiac output in these patients can lead to an increase in cerebral blood flow, although there are some arguments in favor of this hypothesis. The aim of this study is to demonstrate that increasing cardiac output will improve cerebral blood flow in patients with severe traumatic injury and high cerebral pressure.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Gilles Francony, MD
  • Phone Number: 0033476766688

Study Locations

  • France
      • Grenoble, France, 38043
        • Recruiting
        • Grenoble University Hospital
        • Principal Investigator:
          • Gilles Francony, MD
        • Sub-Investigator:
          • Pierre Bouzat, MD, PhD
        • Sub-Investigator:
          • Jean-François Payen, MD, PhD
        • Sub-Investigator:
          • Pierre Lavagne, MD
        • Sub-Investigator:
          • Julien Picard, MD
        • Sub-Investigator:
          • Dominique Falcon, MD
        • Sub-Investigator:
          • Marie-Christine Herault, MD
        • Sub-Investigator:
          • Philippe Declety, MD
        • Sub-Investigator:
          • Sebastien Thomas, MD
        • Sub-Investigator:
          • Marc Vinclair, MD
        • Sub-Investigator:
          • Marie-Cécile Fevre, MD
        • Sub-Investigator:
          • Charles Canet, MD
        • Sub-Investigator:
          • Bashar Oummahan, MD
        • Sub-Investigator:
          • Jerome Hanna, MD

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Traumatic brain injury (TBI) with pattern of oligemia (diastolic velocity < 30cm/second and/or mean velocity < 45cm/second measured with transcranial doppler or oxygen tissue pressure < 15mmHg)
  • Closed traumatic brain injury
  • Isolated TBI or polytraumatism
  • Age between 18 and 65 years old
  • Affiliated to a social security system

Exclusion Criteria:

  • Instable episodes of high cerebral pressure
  • Craniectomy
  • High cerebral pressure without TBI
  • No autoregulation
  • Current hemorrhagic shock
  • Chronic cardiac failure
  • Chronic renal failure
  • Hyperemia measured with transcranial doppler
  • Short life expectancy
  • Refused consent from the family
  • Protected patients by the law
  • Hypersensibility to one of the treatment or sulfites

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: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Noradrenaline alone
Treatment for 30 minutes with noradrenaline alone
Drug: Norepinephrine
Experimental: Noradrenaline + dobutamine
Treatment with noradrenaline and dobutamine for 30 minutes
Drug: Dobutamine and norepinephrine

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Mean blood flow velocity
Time Frame: After one hour of treatment
Mean blood flow velocity averaged on the two middle cerebral arteries (right and left) measured one after after the initiation of treatment. Each velocity is calculated as an average on the 10 last minutes form continuous transcranial doppler monitoring
After one hour of treatment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Evolution of brain oxygenation under treatment
Time Frame: During one hour of treatment
Comparison of the brain tissue oxygenation curves (PbrO2) under treatment with and without dobutamine
During one hour of treatment
Dobutamine doses
Time Frame: After one hour of treatment
Dobutamine doses required to reach the same cerebral perfusion pressure than noradrenaline alone
After one hour of treatment
Resistivity index on renal doppler
Time Frame: After one hour of treatment
Measure of resistivity index on renal doppler after one hour of treatment with and without dobutamine
After one hour of treatment
Pulsatility index on renal doppler
Time Frame: After one hour of treatment
Measure of pulsatility index (PI) on renal doppler before and after one hour of treatment with and without dobutamine prediction of cerebral blood flow increase (patients with high initial renal PI)
After one hour of treatment
Cardiac output modifications
Time Frame: During one hour of treatment
Comparison of cardiac blood flow modifications under treatment for one hour with and without dobutamine
During one hour of treatment

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University Hospital, Grenoble

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2014

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2016

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 1, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 18, 2013

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 18, 2013

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 24, 2013

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 17, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 14, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2013-003276-13

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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