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Overall trial status
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Plain English Summary

Background and study aims
We are carrying out a study on critically ill intubated (a tube inserted via the nose or mouth to keep the airways open) and ventilated (allowing air into the lungs) patients. The first studies to demonstrate mechanical in-exsufflation (IEM) as an effective technique for draining fluid/mucus were conducted in the 1950s. This technique basically mimics a cough in those patients unable to produce a cough to clear the fluid/mucus. This technique in combination with ventilation has been used widely in neuromuscular disease. There is not a lot of data on the use of IEM devices in the intensive care unit (ICU) setting. Currently the technique to remove fluid/mucus is called endotracheal aspiration; serious complications can sometimes occur. This study aims to find out if the use of an IEM device (CoughAssist E70) with conventional tracheal suctioning will improve the drainage of fluid/mucus in intubated and ventilated patients.

Who can participate?
Adult men and women admitted to the intensive care unit who are critically ill and require intubation and ventilation.

What does the study involve?
Subjects will receive both treatments (in-exsufflation with a device [CoughAssist E70] and conventional tracheal suctioning) in a random order. Subjects will be followed up daily until Day 14 and then until discharge from hospital. Subjects will be contacted by telephone on Day 90.

What are the possible benefits and risks of participating?
We believe that the CoughAssist E70 IEM device when used with conventional suctioning will improve the drainage of fluid/mucus. There is data available to demonstrate the effective use of this technology in critically ill patients, but there is a lack of evidence in the ICU setting. The CoughAssist E70 IEM equipment will be fully tested to ensure safety. Subjects will be closely monitored by trained clinical staff.

Where is the study run from?
Service de Pneumologie et de Réanimation, GH Pitié Salpêtrière – Charles Foix, Paris, France

When is the study starting and how long is it expected to run for?
January 2014 to December 2016

Who is funding the study?
Philips Respironics (France)

Who is the main contact?
Prof. Alexandre Demoule

Trial website

Contact information



Primary contact

Prof Alexandre Demoule


Contact details

Service de Pneumologie et de
GH Pitié Salpêtrière – Charles Foix
47 et 83 Bd de l’hôpital
75651 Paris cedex 13

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

In-exsufflation mechanics in intubated patients: a randomized trial



Study hypothesis

The use of an in-exsufflation (IEM) device (CoughAssist E70) with conventional tracheal suctioning will improve the drainage of tracheal secretions in intubated and ventilated patients.

Ethics approval

Committee to Protect People (Comité de Protection des Personnes Île de France VI)

Study design

Single centre prospective randomized cross-over study

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet


Acute Respiratory Failure requiring mechanical ventilation and endotracheal tube intubation


1. Demographics
2. Duration of mechanical ventilation before inclusion
3. Pathology requiring intubation, history
4. Severity Score SAPS II and SOFA
5. Clinic: blood pressure, heart and respiratory rates, score consciousness (Glasgow) or sedation (RASS), diagnosis (clinical and radiological)
6. Ventilator settings (mode, pressure, volume, Fraction of Inspired Oxygen [FiO2])
7. Diameter of the endotracheal tube
8. Arterial blood gas

Subjects will then receive both treatments (in-exsufflation [IEM] device [CoughAssist E70] or conventional tracheal suctioning) in a random order.

Daily until extubation or Day 14:
1. Number of aspirations
2. Occurrence of a complication with the waning of a drainage procedure tracheobronchial secretions
3. Volume of sputum collected
4. Score of gravity SOFA
5. Blood gases
6. Settings fan (mode, pressure , volume, FiO2)
7. Occurrence of VAP and atelectasis, pneumothorax, adverse event
8. Score of consciousness and sedation (RASS)
9. Tolerance technique EVA if the patient can respond
10. Lung density measured by impedance

Day 28:
1. Duration of invasive mechanical ventilation
2. Duration of hospitalization in intensive care unit (ICU)

Day 90:
1. Mortality in the ICU
2. Hospital mortality
3. Mortality at the end of the stay

Follow up:
1. Monitoring will be carried out until ICU discharge and hospital discharge to determine the ICU and hospital stay mortality
2. Patients will be contacted by telephone at Day 90 to determine mortality. This review will be conducted by one of the investigators.

Intervention type



Not Applicable

Drug names

Primary outcome measures

The number of drainage procedures for tracheobronchial secretions necessary for 24h

Secondary outcome measures

1. The volume of bronchial secretions collected daily
2. The incidence of ventilator-acquired pneumonia defined by the presence of two of the following three criteria:
2.1. Hyperthermia > 38.3 ° C controlled to 4 hours apart
2.2. Leukocytosis > 10 G / l
2.3. Sputum purulent
And the following two criteria:
2.4. Microbiological documentation as defined in the study protocol
2.5. New X-ray image evaluated by the two-point increase Score Weinberg 26
3. The incidence of atelectasis (radiographic or endoscopic diagnosis)
4. The clinical safety of the technique assessed by a visual analogue rating scale in conscious patients
5. The failure of the test airway defined by the occurrence of:
5.1. Increased heart rate of more than 30/min
5.2. Increased respiratory rate of more than 10/min
5.3. Respiratory distress with clinical signs of struggle
5.4. Change in systolic blood pressure over 30 mmHg
5.5. Desaturation of more than 4% SpO2
5.6. Increased the capnia more than 5 mmHg
6. The failure of extubation is defined by the need for reintubation within 72 hours. Reintubation criteria as defined in the study protocol
6.1. Criterion immediate intubation:
6.1.1. Cardiac or respiratory arrest
6.1.2. Respiratory break with loss of consciousness or dying breath
6.1.3. Psychomotor agitation not controlled by sedation
6.1.4. Dimensions persistent
6.1.5. Inhalation massive
6.1.6. Heart rate < 50/min with somnolence
6.1.7. Severe hemodynamic dysfunction not responding to circulatory expansion and administration of vasoactive drugs.
6.2. Criterion mechanical ventilation in non-invasive ventilation and invasive ventilation in case of persistent non-invasive ventilation after:
6.2.1. Respiratory acidosis with arterial pH > 7.35 or PaCO2 > 45 mmHg
6.2.2. SpO2 < 90% or PaO2 < 60 mmHg with FiO2 Inspirational > 50%
6.3.3. Respiratory rate > 35/min
6.3.4. Disorder consciousness, agitation or asterixis
6.3.5. Clinical signs of respiratory control or exhaustion: use accessory respiratory muscles or swinging thoracoabdominal
7. The duration of invasive mechanical ventilation
8. The length of stay in the ICU
9. The length of hospital stay
10. Mortality in the ICU
11. In-hospital mortality

Overall trial start date


Overall trial end date


Reason abandoned


Participant inclusion criteria

1. Patient ventilated on endotracheal tube for less than 7 days
2. Duration of mechanical ventilation predicted > 48h

Participant type


Age group




Target number of participants


Participant exclusion criteria

1. Pre-existing neuromuscular pathology, suspected or proven
2. State of shock uncontrolled defined by the administration of norepinephrine or adrenaline at a dose> 0.3 mcg/kg/min
3. Moderate to severe acute respiratory distress syndrome (ARDS) defined by a PaO2/FiO2 ratio <200 mmHg
4. Undrained pneumothorax
5. Hemoptysis active or less than 15 days
6. Intracranial hypertension
7. Decision to limit or stop the treatment
8. Pregnancy
9. Unable to follow study related procedures as explained by the investigator
10. Minor patient

Recruitment start date


Recruitment end date



Countries of recruitment


Trial participating centre

Service de Pneumologie et de

Sponsor information


Philips Respironics (France)

Sponsor details

Bâtiment Verdi
rue de Verdun - BP 313

Sponsor type




Funder type


Funder name

Philips Respironics (France)

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes

05/10/2016: the following changes were made to the trial record: 1. The recruitment end date was changed from 01/09/2015 to 01/11/2016. 2. The overall trial end date was changed from 01/09/2015 to 31/12/2016.