Use of Extracorporeal CO2 Removal in Case of Moderate to Severe ARDS to Apply an Ultraprotective Mechanical Ventilation Strategy (ECCO2R)

Use of Extracorporeal CO2 Removal in Case of Moderate to Severe Acute Respiratory Distress Syndrome to Apply an Ultraprotective Mechanical Ventilation Strategy

The extracorporeal CO2 removal (ECCO2R) has been recently proposed in case of Acute Respiratory Distress Syndrome (ARDS) in order to reduce pulmonary injuries induced by the mechanical ventilation. A reducing of tidal volume and/or respiratory rate is thus expected using this extracorporeal respiratory support. However, most of existing devices of ECCO2R can apply only a limited extracorporeal flow, often less than 1L/min, which limits the CO2 exchanges and does not allow to reach an ultraprotective ventilation. An extracorporeal flow higher should logically maximalize CO2 removal and allow reducing intensity of mechanical ventilation. Works focused on high-flow ECCO2R (2-3 L/min) in setting of ARDS are therefore mandatory to better understand apprehend the phenomena of gazes changes with this device and confirm the added-value in management of these specific patients.

Study Overview

• Status: Terminated
• Conditions: Acue Respiratory Distress Syndrome
• Intervention / Treatment: Procedure: High-flow extracorporeal CO2 removal

Detailed Description

This is a prospective interventional study focused on a cohort population.

The included patients will be those affected by a severe ARDS (Berlin definition) requiring an aggressive mechanical ventilation and whom a high-flow ECCO2R was implemented.

The high-flow ECCO2R will be proposed in all patients with inclusions criteria with the 15 first days following their admission. The day of initiation of the high-flow ECCO2R will considered as Day 0 in our study.

A data collection will be focused on the respiratory parameters, clinical complications until ICU discharge and outcome, extracted from medical records.

The main endpoint will be the perrcentage of patients whom an ultraprotective ventilation could be applied successfully during more than 12h. Ultraprotective ventilation is defined in our work as follows: Tidal volume ≤ 3 mL/kg and respiratory rate ≤ 16/min associated with a PaCO2 ≤ 45mmHg and a PaO2 ≥ 55 mmHg.

The secondary endpoints will be durations of mechanical ventilation, ICU stay and hospitalization, as well as rheological behavior of extracorporeal circulation, respiratory parameters under high-flow ECCO2R, specific complications and mortality.

• Study Type: Interventional
• Enrollment (Actual): 2
• Phase: Not Applicable

Contacts and Locations

Study Locations

• France
  • Montpellier, France, 34295
    • University Hospital of Montpellier

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Aged from 18 years old
• Patient suffering from ARDS including the 3 following parameters during more than 12 hours:

PaO2/FiO2 ≤200 Driving Pressure ≥15 cmH2O, Tidal Volume = 6 mL/kg PIT Respiratory rate ≥ 28/min

- Or patient hospitalized for severe bronchospasm or COPD exacerbation associating a persistent capnia ≥ 50 mmHg despite maximal mechanical ventilation (Vt = 6mL/kg PIT, respiratory rate ≥ 24/min)

Exclusion Criteria:

• Patients protected by law (Art.L 1121-5, 1121-6, 1121-8 du Code de la santé publique)
• Consent refusal from the patient or his/her next of kin and the impossibility to enrol using the emergency procedure
• Pregnant or breast feeding patient
• Absence of a French Health Care Insurance coverage

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: High-flow ECCO2R; Extracorporeal support using high flow circulation	Procedure: High-flow extracorporeal CO2 removal; Applying of a CO2 removal using an extracorporeal circulation with a flow of 2-3.5L/min in order to reduce the aggression induced by the mechanical ventilation.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
percentage of patient who obtained a safe ultraprotective ventilation	a safe ultraprotective ventilation is defined by the four following parameters : Tidal Volume ≤ 3 mL/kg; Respiratory Rate ≤ 16/min; PaCO2 ≤ 45mmHg; PaO2 ≥ 55 mmHg.	12 hours

Secondary Outcome Measures

Outcome Measure	Time Frame
Duration of mechanical ventilation	up to Day 30
Hospital length of stay	up to Day 30
ICU length of stay	up to Day 30
Day 30 all-cause mortality	up to Day 30

Collaborators and Investigators

• Sponsor: University Hospital, Montpellier

Study record dates

Study Major Dates

• Study Start (Actual): February 16, 2021
• Primary Completion (Actual): October 26, 2023
• Study Completion (Actual): October 26, 2023

Study Registration Dates

• First Submitted: September 14, 2020
• First Submitted That Met QC Criteria: September 18, 2020
• First Posted (Actual): September 21, 2020

Study Record Updates

• Last Update Posted (Actual): December 13, 2024
• Last Update Submitted That Met QC Criteria: December 9, 2024
• Last Verified: December 1, 2024

More Information

Terms related to this study

• Keywords: ARDS; ECCO2R; Driving pressure; Mechanical power; Ultraprotective ventilation; Respiratory extracorporeal support
• Additional Relevant MeSH Terms: Pathologic Processes; Respiratory Tract Diseases; Disease; Lung Diseases; Respiration Disorders; Infant, Premature, Diseases; Infant, Newborn, Diseases; Syndrome; Respiratory Distress Syndrome; Respiratory Distress Syndrome, Newborn
• Other Study ID Numbers: RECHMPL19-0548

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: identified data used in the published manuscript will be shared in accordance with the applicable informed consent under which the data was collected
• IPD Sharing Time Frame: 12 months after the main publication
• IPD Sharing Access Criteria: Data are provided to qualified investigators free of charge. Required documents to request data include a summary of the research plan, request form, and IRB review. Dataset will be shared after careful examination by the study board of investigators.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No