Study Comparing Two Ventilation Modes NAVA (Neurally Adjusted Ventilatory Assist) Mode and Spontaneous Breathing With Inspiratory Pressure Support (IPS) Mode in Consecutive Patients Hospitalized for Acute Respiratory Failure Requiring Mechanical Ventilation With Endotracheal Tube.

December 17, 2013 updated by: Clinact

ZEPHYR: Multicenter, Prospective, Randomized, Open-label Study in Consecutive Patients Hospitalized for Acute Respiratory Failure Requiring Mechanical Ventilation With Endotracheal Tube. This Study Compared Two Ventilation Modes: NAVA Mode and Spontaneous Breathing With Inspiratory Pressure Support (the Latter is Considered as the Reference Ventilation Mode).

This is a multicenter, prospective, randomized, open-label study which compared two ventilation modes: spontaneous NAVA mode and spontaneous breathing with IPS mode (the latter is considered as the reference ventilatory mode) in patients admitted to the ICU for acute respiratory failure and ventilated with an endotracheal tube. NAVA mode allows to minimize patient-ventilator disharmony with acceptable tolerance and to preserve spontaneous ventilation.

Study Overview

Status

Status

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

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 (Actual)

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.
129

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.
  • 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
    • Alpes Maritimes
      • Nice, Alpes Maritimes, France, 06202
        • Hôpital l'Archet 1
    • Gironde
      • Bordeaux, Gironde, France, 33076
        • Hôpital Pellegrin
      • Pessac, Gironde, France, 33604
        • Groupe Hospitalier Sud - Hôpital Haut-Leveque - Maison du Haut-Leveque
    • Haute Vienne
      • Limoges, Haute Vienne, France, 87042
        • Hopital Dupuytren
    • Herault
      • Montpellier, Herault, France, 34295
        • Hopital Saint-Eloi - CHU MONTPELLIER
    • Ile de France
      • Paris, Ile de France, France, 75651
        • Hôpital de la Pitié Salpêtrière
    • Maine Et Loire
      • Angers, Maine Et Loire, France, 49933
        • Hopital Larrey- CHU D'ANGERS
    • Normandie
      • Caen, Normandie, France, 14000
        • Hopital de la Cote de Nacre - CHU de CAEN
    • Puy de Dome
      • Clermont Ferrand, Puy de Dome, France, 63100
        • Hôpital d'Estaing
    • Rhone Alpes
      • Lyon, Rhone Alpes, France, 69004
        • Hôpital de La Croix Rousse
      • Lyon, Rhone Alpes, France, 69495
        • Centre Hospitalier LYON SUD

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patient ventilated with endotracheal tube for more than 24 hours
  • Return for at least 30 minutes to spontaneous ventilation allowing IPS with a level of pressure support <30 cm H2O;
  • Level of sedation =< 4 on the Ramsay scale in the absence of medical decision to increase the level of sedation;
  • Fraction of inspired oxygen (FiO 2) =< 50% with a positive end-expiratory pressure (PEEP) =< 8 cm H2O;

  • Absence of administration of high-dose vasopressor therapy defined by:

    1. norepinephrine > 0.3 mcg / kg / min;
    2. dopamine > 10 mcg / kg / min;
  • Estimated duration of mechanical ventilation > 48h00

Exclusion Criteria:

  • Contraindication to the implementation of the NAVA endotracheal tube, ie any contraindication to the implementation of a gastric tube or to the repositioning of a tube already in place:

    1. Recent gastrointestinal suture ;
    2. Esophageal varices rupture with gastrointestinal bleeding within 4 days prior to inclusion;
  • Therapeutic limitation or active treatment discontinuation;
  • Pregnant women;
  • Minors;
  • Protected adults;
  • Patient already included in the study;

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

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.
Experimental: spontaneous NAVA mode
Device: NAVA endotracheal tube
Active Comparator: Inspiratory pressure support (IPS)
Device: NAVA endotracheal tube

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
Evaluate the benefit of NAVA mode as compared to IPS mode in terms of duration of spontaneous ventilation 48 hours after inclusion.
Time Frame: Continuous recording during 48 hours following the intubation
The time spent in different modes of spontaneous ventilation (NAVA, IPS) and controlled ventilation (VAC controlled pressure) will be measured. The primary endpoint will be the proportion of patients remaining in spontaneous ventilation after the first 48 hours.
Continuous recording during 48 hours following the intubation

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
Reduction of patient / ventilator disharmony, measured during the first 48 hours with the disharmony index
Time Frame: Continuous recording during the first 48 hours
Continuous recording during the first 48 hours
Real-time spent in NAVA mode and frequency of returns in a controlled mode (controlled ventilation VAC).
Time Frame: Continuous recording during the first 48 hours
Feasibility of the initiation of mechanical ventilation in NAVA mode and feasibility of prolonged mechanical ventilation in NAVA mode
Continuous recording during the first 48 hours
Earnings on the "breathing comfort"
Time Frame: Continuous recording during the first 48 hours
Continuous recording during the first 48 hours
Earnings on sleep architecture
Time Frame: Continuous recording during the first 48 hours
Total sleep time; Number of arousals per hour; Duration of stage IV sleep ; Duration of Rapid Eye Movement (REM) sleep.
Continuous recording during the first 48 hours
Tolerance
Time Frame: Continuous for the duration of ICU stay, an expected maximum of 14 days
  • Adverse events associated with the use of the device.
  • Incidence of ventilator-acquired pneumonia.
  • Duration of ICU stay.
  • Duration of hospital stay.
  • Mortality in the ICU.
  • Hospital mortality.
Continuous for the duration of ICU stay, an expected maximum of 14 days

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of implementation failure of the NAVA endotracheal tube.
Time Frame: For each patient, the success or failure of the endotracheal tube implementation will be evaluated, this for the entire duration of the study estimated to 18 months
For each patient, the success or failure of the endotracheal tube implementation will be evaluated, this for the entire duration of the study estimated to 18 months
Number and duration of automatic switch into IPS mode
Time Frame: Continuous recording until extubation or D14 maximum
Continuous recording until extubation or D14 maximum
Number of Permanent discontinuation of NAVA ventilation mode
Time Frame: Continuous recording during the first 48 hours
Continuous recording during the first 48 hours
Comfort of the device measured by a visual analog scale.
Time Frame: At the extubation or at D14 maximum
Tolerance of the device
At the extubation or at D14 maximum
Side effects associated with the use of the system
Time Frame: Continuous for the duration of ICU stay, an expected maximum of 14 days
Device movements Endotracheal tube obstruction Lesion of the oral or nasal mucosa
Continuous for the duration of ICU stay, an expected maximum of 14 days

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.
Clinact

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

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.
January 1, 2012

Primary Completion (Actual)

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.
August 1, 2013

Study Completion (Actual)

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.
August 1, 2013

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 11, 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 17, 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 23, 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.
December 23, 2013

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.
December 17, 2013

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.
December 1, 2013

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.
  • N° 2011-001
  • 2011-A00559-32 (Other Identifier: ANSM)

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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