- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03963622
Careful Ventilation in Acute Respiratory Distress Syndrome (COVID-19 and Non-COVID-19) (CAVIARDS)
Careful Ventilation in Acute Respiratory Distress Syndrome
This is a multicenter randomized controlled clinical trial with an adaptive design assessing the efficacy of setting the ventilator based on measurements of respiratory mechanics (recruitability and effort) to reduce Day 60 mortality in patients with acute respiratory distress syndrome (ARDS).
The CAVIARDS study is also a basket trial; a basket trial design examines a single intervention in multiple disease populations. CAVIARDS consists of an identical 2-arm mechanical ventilation protocol implemented in two different study populations (COVID-19 and non-COVID-19 patients). As per a typical basket trial design, the operational structure of both the COVID-19 substudy (CAVIARDS-19) and non-COVID-19 substudy (CAVIARDS-all) is shared (recruitment, procedures, data collection, analysis, management, etc.).
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Acute respiratory distress syndrome (ARDS) is a major public health problem affecting approximately 10% of patients in the intensive care unit (ICU) and 23% of all patients on a breathing machine (mechanical ventilator). The short-term mortality of patients with ARDS is approximately 40% and better ventilation of these patients has the greatest potential to improve outcomes.
The lungs in patients with ARDS are severely inflamed which reduces lung volume and their ability to stretch, making ventilation difficult and dangerous. However, mechanical ventilation is the mainstay of supportive therapy. Although it is life-saving, it can also can generate secondary injury and inflammation, called ventilator-induced lung injury (VILI). The investigators know that inadequate mechanical ventilation worsens outcomes but are uncertain of the optimal way to manage ventilators at the bedside.
Furthermore, ARDS is challenging because there is no treatment for the alveolar-capillary leak characterizing this syndrome; aside from treating the underlying cause, the only supportive therapy is mechanical ventilation. This is specially the case for COVID-19 induced ARDS. Despite best practices, over-distension of the lung or inappropriate positive end expiratory pressure (PEEP) is common. Finally, once spontaneous breathing has resumed and is assisted by the ventilator, an additional phenomenon occurs, called patient self-inflicted lung injury. The drive for breathing in many patients is stimulated by lung inflammation, and strong breathing efforts can generate high distending pressures, causing lung (and systemic) inflammation and organ damage. Whether the management of COVID-19 induced ARDS should differ from all other ARDS has been debated at length but has no clear response
Recent advances in our understanding of bedside physiology (airway closure, recruitability, lung distension, respiratory drive) can now be applied for an individual titration of mechanical ventilation.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Laurent Brochard, MD
- Phone Number: 5686 416-864-6060
- Email: Laurent.brochard@unityhealth.to
Study Locations
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Buenos Aires, Argentina
- Recruiting
- Hospital Britanico de Buenos Aires
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Contact:
- Gustavo Plotnikov, RRT
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Buenos Aires, Argentina
- Not yet recruiting
- Centro de Educación Médica e Investigaciones Clínicas Dr Norberto Quirno (CEMIC)
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Contact:
- Pablo Rodriguez, MD
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Buenos Aires, Argentina
- Recruiting
- Complejo Médico Policía Federal Argentina Churruca Visca
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Contact:
- Maria Guaymas, MD
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Buenos Aires, Argentina
- Recruiting
- Sanatorio Anchorena Recoleta
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Contact:
- Daniela Vazquez, MD
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Buenos Aires, Argentina
- Not yet recruiting
- Sanatorio Mater Dei
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Contact:
- Magalí Gutiérrez, MD
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San Martín, Argentina
- Recruiting
- Sanatorio Anchorena San Martín
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Contact:
- Matias Accoce, RRT
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Toronto, Canada
- Recruiting
- Toronto General Hospital
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Contact:
- Ewan Goligher, MD
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Toronto, Canada
- Recruiting
- St. Michael's Hospital
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Contact:
- Laurent Brochard, MD
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Toronto, Canada
- Recruiting
- Toronto Western Hospital
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Contact:
- Irene Telias, MD
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Santiago de Chile, Chile
- Recruiting
- Pontificia Universidad Catolica de Chile
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Contact:
- Felipe Damiani, PhD
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Angers, France
- Recruiting
- Centre hospitalier universitaire d'Angers
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Contact:
- Francois Beloncle, MD
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Argenteuil, France
- Recruiting
- CH Victor Dupouy
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Contact:
- Gaetan PLANTEFEVE, MD
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Beauvais, France
- Recruiting
- CH de Beauvais
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Contact:
- Jack Richecoeur, MD
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Bordeaux, France
- Recruiting
- CHU Bordeaux - Haut Leveque
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Contact:
- Hadrien Roze, MD
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Brest, France
- Recruiting
- Hopital de la Cavale Blanche - CHRU Brest
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Contact:
- Gwenael Prat, MD
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Cholet, France
- Recruiting
- CH de Cholet
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Contact:
- Johann Auchabie, MD
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Creteil, France
- Recruiting
- Hôpital Intercommunal de Créteil
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Contact:
- Tommaso Maraffi, MD
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Grenoble, France
- Recruiting
- CHU Grenoble-Alpes
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Contact:
- Nicolas Terzi, MD
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Lille, France
- Recruiting
- Hopital Roger Salengro - CHU Lille
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Contact:
- Saad Nseir, MD
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Mulhouse, France
- Recruiting
- Groupe hospitalier de la région de Mulhouse et Sud Alsace
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Contact:
- Khaldoun Kuteifan, MD
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Nice, France
- Recruiting
- Hopital de l'Archet 1 - CHU de Nice
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Contact:
- Jean Dellamonica, MD
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Paris, France
- Recruiting
- Hôpital Européen Georges-Pompidou
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Contact:
- Jean-Luc Diehl, MD
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Poitiers, France
- Recruiting
- CHU de Poitiers - La miletrie
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Contact:
- Remi Coudroy, MD
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Vannes, France
- Recruiting
- CH Bretagne Atlantique vannes-Auray
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Contact:
- Agathe DELBOVE, MD
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Villenave-d'Ornon, France
- Recruiting
- HIA Robert Picqué
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Contact:
- David Tran-Van, MD
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Ferrara, Italy
- Recruiting
- Arcispedale Sant'Anna
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Contact:
- Savino Spadaro, MD
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Foggia, Italy
- Recruiting
- University of Foggia
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Contact:
- Michela Rauseo, MD
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Rome, Italy
- Recruiting
- Policlinico Universitario Agostino Gemelli IRCCS
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Contact:
- Domenico L Grieco, MD
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Barcelona, Spain
- Recruiting
- Vall D'Hebron University Hospital
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Barcelona, Spain
- Recruiting
- L'Hospital de la Santa Creu i Sant Pau
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Contact:
- Jordi Mancebo, MD
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New York
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New York, New York, United States, 10016
- Recruiting
- New York University Grossman School of Medicine
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Contact:
- David Kaufman, MD
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age ≥ 18 y
- Moderate or severe ARDS (PaO2/FiO2 ≤ 200 mmHg) within 48 h of meeting Berlin ARDS criteria
Exclusion Criteria:
- Received continuous mechanical ventilation > 7 days
- Known or clinically suspected elevated intracranial pressure (>18mmHg) necessitating strict control of PaCO2
- Known pregnancy
- Broncho-pleural fistula
- Severe liver disease (Child-Pugh Score ≥ 10)
- BMI >40kg/m2
- Anticipating withdrawal of life support and/or shift to palliation as the goal of care
- Patient is receiving ECMO at time of randomization
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Control
Standard ventilation strategy.
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Patients randomized to the control arm will receive standard care.
The PEEP is adjusted for oxygenation based on a PEEP-FiO2 table, either the low PEEP-FiO2 or the high PEEP-FiO2 table.
Volume targeted ventilation with initial VT 6 mL·kg-1 and Plateau pressure at 30 cmH2O or below, targeting PaO2 60-80 or SpO2 90-95%, adjusted as per the protocol.
Pressure-support ventilation is at physician's discretion, but recommended when FiO2 <60%, and is titrated VT 6-8 mL·kg-1.
|
Experimental: Respiratory Mechanics
The goal of this arm is to individualize tidal volume (VT) and PEEP according to respiratory mechanics.
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Different maneuvers based on respiratory mechanics will be assessed at the bedside and will be used to individualize ventilator parameters. Recruitability will be assessed with a one breath decremental PEEP maneuver, and search for airway closure with a low-flow pressure volume or pressure-time curve. If the patient has airway closure, the minimal PEEP will be set at the airway opening pressure to avoid closure. If the patient is considered recruitable, the goal is to set PEEP at or above 15cmH20 to maximize alveolar recruitment, until the plateau pressure reaches the safety limit. Volume control ventilation at 6ml·kg-1 will be used. Once spontaneous breathing has started, the occlusion pressure (P0.1) will be maintained within targets. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
All-cause 60-day mortality
Time Frame: 60 days
|
The lack of an appropriate surrogate endpoint, and the high baseline mortality rate mandate a multicentre RCT to determine the mortality effects of setting the ventilator based on recruitability and effort compared with conventional ventilation.
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60 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Duration of ventilation
Time Frame: May exceed 60 days
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Duration of ventilation in days
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May exceed 60 days
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Duration of ICU and hospital stay
Time Frame: May exceed 60 days
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Duration of ICU and hospital stay in days
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May exceed 60 days
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Number of patients with organ dysfunction
Time Frame: Day 1-7, 14, 21, 28
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Organ dysfunction as per the SOFA score
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Day 1-7, 14, 21, 28
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Number of patients with barotrauma
Time Frame: Up to 60 days
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Barotrauma defined as new onset of pneumothorax
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Up to 60 days
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Mortality at ICU discharge, 28 days, and hospital discharge
Time Frame: Up to date of ICU discharge, 28 days, and hospital discharge
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Mortality
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Up to date of ICU discharge, 28 days, and hospital discharge
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The change in biomarker expression
Time Frame: Baseline, 24 and 72 hours
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Biomarkers include interleukin 6 (IL-6), interleukin 8 (IL-8), tumor necrosis factor receptor 1 (TNFr1), soluble receptor of the advanced glycation end products (sRAGE), and surfactant protein D (SPD).
All measured in pg/ml
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Baseline, 24 and 72 hours
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Collaborators and Investigators
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 1765 (Other Identifier: OHSU IRB)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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