急性呼吸窮迫症候群における慎重な換気 (COVID-19 および非 COVID-19) (CAVIARDS)
急性呼吸窮迫症候群における慎重な換気
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.).
調査の概要
詳細な説明
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.
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:Laurent Brochard, MD
- 電話番号:5686 416-864-6060
- メール:laurent.brochard@unityhealth.to
研究場所
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New York
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New York、New York、アメリカ、10016
- 募集
- New York University Grossman School of Medicine
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コンタクト:
- David Kaufman, MD
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Buenos Aires、アルゼンチン
- 募集
- Hospital Británico de Buenos Aires
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コンタクト:
- Gustavo Plotnikov, RRT
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Buenos Aires、アルゼンチン
- 募集
- Complejo Médico Policía Federal Argentina Churruca Visca
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コンタクト:
- Maria Guaymas, MD
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Buenos Aires、アルゼンチン
- 募集
- Sanatorio Anchorena Recoleta
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コンタクト:
- Daniela Vasquez, MD
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Buenos Aires、アルゼンチン
- 募集
- Sanatorio Mater Dei
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コンタクト:
- Magalí Gutiérrez, MD
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Buenos Aires、アルゼンチン
- 募集
- Centro de Educación Médica e Investigaciones Clínicas Dr Norberto Quirno (CEMIC)
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コンタクト:
- Pablo Rodriguez, MD
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San Martin、アルゼンチン
- 募集
- Sanatorio Anchorena San Martín
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コンタクト:
- Matias Accoce, RRT
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Ferrara、イタリア
- 募集
- Arcispedale Sant'Anna
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コンタクト:
- Savino Spadaro, MD
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Foggia、イタリア
- 募集
- University of Foggia
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コンタクト:
- Michela Rauseo, MD
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Rome、イタリア
- 募集
- Policlinico Universitario Agostino Gemelli IRCCS
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コンタクト:
- Domenico L Grieco, MD
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North Holland
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Amsterdam、North Holland、オランダ
- 募集
- OLVG
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コンタクト:
- Rogier Determann, MD
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Toronto、カナダ
- 募集
- St. Michael's Hospital
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コンタクト:
- Laurent Brochard, MD
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Toronto、カナダ
- 募集
- Toronto General Hospital
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コンタクト:
- Ewan Goligher, MD
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Toronto、カナダ
- 募集
- Toronto Western Hospital
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コンタクト:
- Irene Telias, MD
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Barcelona、スペイン
- 募集
- Vall d'Hebron University Hospital
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コンタクト:
- Andres F Pacheco, MD
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Barcelona、スペイン
- 募集
- L'Hospital de la Santa Creu i Sant Pau
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コンタクト:
- Marta I Gomez, MD
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Santiago、チリ
- 募集
- Pontificia Universidad Católica de Chile
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コンタクト:
- Felipe Damiani, PhD
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Amiens、フランス
- 募集
- CHU Amiens-Picardie
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コンタクト:
- Michel Slama, MD
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Angers、フランス
- 募集
- Centre hospitalier universitaire d'Angers
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コンタクト:
- Francois Beloncle, MD
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Argenteuil、フランス
- 募集
- CH Victor Dupouy
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コンタクト:
- Gaetan Plantefeve, MD
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Beauvais、フランス
- 募集
- CH de Beauvais
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コンタクト:
- Jack Richecoeur, MD
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Bordeaux、フランス
- 募集
- CHU Bordeaux - Haut Leveque
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コンタクト:
- Benjamin Repusseau, MD
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Brest、フランス
- 募集
- Hopital de la Cavale Blanche - CHRU Brest
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コンタクト:
- Gwenael Prat, MD
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Cholet、フランス
- 募集
- CH de Cholet
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コンタクト:
- Johann Auchabie, MD
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Créteil、フランス
- 募集
- Hopital Intercommunal de Creteil
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コンタクト:
- Tommaso Maraffi, MD
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Grenoble、フランス
- 募集
- CHU Grenoble-Alpes
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コンタクト:
- Florian Sigaud, MD
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Lille、フランス
- 募集
- Hopital Roger Salengro - CHU Lille
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コンタクト:
- Saad Nseir, MD
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Mulhouse、フランス
- 募集
- Groupe Hospitalier de la Region de Mulhouse et Sud Alsace
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コンタクト:
- Khaldoun Kuteifan, MD
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Nice、フランス
- 募集
- Hopital de l'Archet 1 - CHU de Nice
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コンタクト:
- Jean Dellamonica, MD
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Paris、フランス
- 募集
- Hopital Europeen Georges-Pompidou
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コンタクト:
- Jean-Luc Diehl, MD
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Poitiers、フランス
- 募集
- CHU de Poitiers - La Miletrie
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コンタクト:
- Remi Coudroy, MD
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Vannes、フランス
- 募集
- CH Bretagne Atlantique Vannes-Auray
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コンタクト:
- Agathe Delbove, MD
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Villenave-d'Ornon、フランス
- 募集
- HIA Robert Picque
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コンタクト:
- David Tran-Van, MD
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Age ≥ 18 y
- Moderate or severe ARDS (PaO2/FiO2 ≤ 200 mmHg) within 48 h of meeting Berlin ARDS criteria (Patients who were eligible at the time of screening and whose PaO2/FiO2 became > 200 mm Hg under prone positioning when starting the protocol remained eligible)
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
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
アクティブコンパレータ:Control
Standard ventilation strategy. |
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. |
|
実験的:Respiratory Mechanics
The goal of this arm is to individualize tidal volume (VT) and PEEP according to respiratory mechanics. |
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. |
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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All-cause 60-day mortality
時間枠:60 days
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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. |
60 days
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Duration of ventilation
時間枠:May exceed 60 days
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Duration of ventilation in days |
May exceed 60 days
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Duration of ICU and hospital stay
時間枠:May exceed 60 days
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Duration of ICU and hospital stay in days |
May exceed 60 days
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Number of patients with organ dysfunction
時間枠:Day 1-7, 14, 21, 28
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Organ dysfunction as per the SOFA score |
Day 1-7, 14, 21, 28
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Number of patients with barotrauma
時間枠:Up to 60 days
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Barotrauma defined as new onset of pneumothorax |
Up to 60 days
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Mortality at ICU discharge, 28 days, and hospital discharge
時間枠:Up to date of ICU discharge, 28 days, and hospital discharge
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Mortality |
Up to date of ICU discharge, 28 days, and hospital discharge
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その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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The change in biomarker expression
時間枠: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 |
Baseline, 24 and 72 hours
|
協力者と研究者
スポンサー
協力者
捜査官
- 主任研究者:Laurent Brochard, MD、Unity Health Toronto
出版物と役立つリンク
一般刊行物
- Villalba DS, Matesa A, Boni S, Gutierrez FJ, Moracci R, Plotnikow GA. Impact of High-Flow Nasal Cannula Oxygen Therapy on the Pressure of the Airway System in Humans. Respir Care. 2025 Jan;70(1):10-16. doi: 10.1089/respcare.12082.
- Coudroy R, Telias I, Jonkman A, Thille AW, Diehl JL, Peron N, Ko M, Bourion AA, Tiribelli N, Fredes S, Gutierrez M, Manchado Bruno A, Vasquez DN, Pratto RA, Plotnikow GA, Bianchini F, Accoce M, Dorado J, Spadaro S, La Rosa R, Prat G, Bailly P, Delbove A, Pacheco-Reyes A, Roca O, Kuteifan K, Rouze A, Grieco DL, Izura-Gomez M, Mancebo J, Sigaud F, Terzi N, Saccheri C, Dellamonica J, Richecoeur J, Setten M, Rauseo M, Beloncle F, Repusseau B, Roze H, Tran-Van D, Damiani F, Slama M, Kaufman DA, Maraffi T, Goligher EC, Plantefeve G, Determann R, Giamou M, Pham T, Del Sorbo L, Keown-Stoneman CDG, Nisenbaum R, Thorpe K, Piraino T, Chen L, Juni P, Ferguson ND, Slutsky AS, Brochard L; CAVIARDS study group. Careful ventilation in acute respiratory distress syndrome: the protocol of the CAVIARDS international multicentre randomised basket trial. BMJ Open. 2026 Feb 23;16(2):e115775. doi: 10.1136/bmjopen-2025-115775.
便利なリンク
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- 1765
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
The final anonymized trial dataset will be available on reasonable written request to the principal investigator one year after publication of the main manuscript.
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。