Acute Respiratory Distress SyndromePR-ARDS-PPNCT04457739
Assessment of Preload Responsiveness in ARDS Patients During Prone Position
An observational study of Acute Respiratory Distress Syndrome and Septic Shock, run by Bicetre Hospital at 1 site in France.
Trial summary
Evaluation of preload responsiveness in ARDS patients during prone position is difficult and only one study showed Trendelenburg manoeuvre can be used in this group of patients. This study aims to investigate whether end-expiratory occlusion test, tidal volume challenge (using the changes in PPV) can be used to… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Acute Respiratory Distress Syndrome, Septic Shock, Hemodynamic Instability
- What is being tested?
- Tidal volume challenge, End-expiratory occlusion test and Trendelenburg maneuver
- How many people
- 58 participants
- Where
- 1 siteFrance
- Study dates
- 8 Jan 2019to 31 Dec 2021
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients with severe ARDS (according to the Berlin definition) undergoing a prone position session, already monitored with a transpulmonary thermodilution device and for whom the evaluation of preload responsiveness is needed owing to the occurrence of hemodynamic instability.
Who may be able to join
- ARDS patient
- Prone position
- Monitored by transpulmonary thermodilution and pulse contour analysis
Who cannot join
- Age below 18
- No social security
- Refuse to participate in the study
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Evaluation of Tidal Volume Challenge to Detect Preload-responsiveness in Patients With Acute Respiratory Distress Syndrome (ARDS) During Prone Position
Evaluation of preload responsiveness in ARDS patients during prone position is difficult and only one study showed Trendelenburg manoeuvre can be used in this group of patients. This study aims to investigate whether end-expiratory occlusion test, tidal volume challenge (using the changes in PPV) can be used to evaluate preload responsiveness in patients with ARDS ventilated with a low tidal volume and who underwent a PP session.
Read the detailed description
Acute respiratory distress syndrome (ARDS) which is a major cause of morbidity and mortality in the intensive care unit, is characterized by decreased lung volume, decreased lung compliance, increased pulmonary vascular resistance and pulmonary hypertension, which ultimately lead to right ventricular dysfunction. Moreover, through biventricular interdependence and inter-ventricular septum shift, the left ventricular filling is limited, which eventually results in a decrease in stroke volume. Due to the high risk of ventilation-induced lung injury, protective lung ventilation is recommended, mainly through a reduction in tidal volume. However, due to the profound hypoxemia inherent to this mode of ventilation, lung recruitment strategies are recommended. When the application of a recruitive positive end-expiratory pressure fails to correct hypoxemia, prone positioning (PP) is recommended. A randomized controlled trial (PROSEVA) reported that early application of prolonged PP sessions in patients with severe ARDS significantly decreased 28- and 90-day mortality. In addition to its respiratory effects (improvement in arterial oxygenation and lung recruitment), PP exerts different cardiovascular effects. By increasing oxygenation and recruiting lung regions, PP can reduce the right ventricular afterload. By increasing the intraabdominal pressure (IAP), PP can increase the venous return and the cardiac preload. This effect might depend on the level of IAP, because a high IAP might collapse the inferior vena cava, especially in the case of hypovolemia. If cardiac preload increases, the resultant effect on cardiac output might depend on the degree of preload responsiveness. Finally, by increasing the IAP, PP can increase the left ventricular afterload. In a recent clinical study, our group showed that PP increases right and left ventricular preload and decreased right ventricular afterload. However, PP increased cardiac output only in patients with preload responsiveness. In this study preload responsiveness was detected by an increase in cardiac output > 10% during a passive leg raising (PLR) test. Since PP sessions are recommended to last between 16 to 18 hours per day and since patients with ARDS often have an associated sepsis, hemodynamically instability may occur during PP sessions. The therapeutic decision is very tricky since the administration of fluid (the main therapeutic option in case of hemodynamic instability) is risky due to alteration of lung capillary membrane permeability. Thus, it is important to predict the benefits of fluid administration by using indices of preload responsiveness. The recommended indices of preload responsiveness are pulse pressure variation (PPV), stroke volume variation (SVV) and PLR. However, PPV and SVV cannot be used reliably during low tidal volume ventilation. Moreover, conventional PLR cannot be performed during PP. It is thus important to develop other preload responsiveness tests doable during PP. Our group proposed to perform an end-expiratory occlusion (EEO) test to predict fluid responsiveness in the supine position and more recently to perform a tidal volume challenge (TVC) by transiently increasing tidal volume from 6 to 8 mL/kg and observing the changes in PPV.
- Being tested
- Tidal volume challenge, End-expiratory occlusion test, Trendelenburg maneuver
- Keywords
- Hemodynamic monitoring, preload responsiveness, ARDS, Fluid therapy
- Medical subject headings
- Respiratory Distress Syndrome, Shock, Septic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Tidal volume challengeOther
Increasing tidal volume from 6 to 8 mL/kg during 1 min
End-expiratory occlusion testOther
Interrupting the ventilator at end-expiration for 15-30 s and assessing the resulting changes in cardiac output
Trendelenburg maneuverOther
Patients remained in prone position with a 13° upward bed angulation throughout the study and then be positioned in a declining position at -12 ° for 1 minute
What is being measured
The primary outcome is the main question the study is designed to answer.
Area under ROC curve of the change in pulse pressure variation during tidal volume challenge to detect preload responsiveness
Measured: 1 minute after increasing tidal volume from 6 to 8mL/kg
Secondary outcomes (1)
Area under ROC curve of the pulse pressure variation in tidal volume of 8ml/kg in continuous cardiac output during end-expiratory occlusion to detect preload dependence
Measured: 1 minute after tidal volume increase to 8 ml/kg
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Jul 2020
- Study start8 Jan 2019
- Primary completion6 May 2021
- Study completion31 Dec 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (18)Papers the sponsor has linked to this study.
- Other trials for Acute Respiratory Distress SyndromeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 58 participants (actual)
Sponsor and investigators
- Lead sponsor
- Bicetre Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Rui Shi, Bicetre Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04457739
- Sponsor's protocol ID
- 2019-A00064-53
- Acronym
- PR-ARDS-PP
- Status last verified
- Mar 2022
- First submitted
- 30 Jun 2020
- Last updated
- 2 Mar 2022
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Ware LB, Matthay MA. The acute respiratory distress syndrome. N Engl J Med. 2000 May 4;342(18):1334-49. doi: 10.1056/NEJM200005043421806. No abstract available.
PubMed 10793167Vieillard-Baron A, Matthay M, Teboul JL, Bein T, Schultz M, Magder S, Marini JJ. Experts' opinion on management of hemodynamics in ARDS patients: focus on the effects of mechanical ventilation. Intensive Care Med. 2016 May;42(5):739-749. doi: 10.1007/s00134-016-4326-3. Epub 2016 Apr 1.
PubMed 27038480Rhodes A, Evans LE, Alhazzani W, Levy MM, Antonelli M, Ferrer R, Kumar A, Sevransky JE, Sprung CL, Nunnally ME, Rochwerg B, Rubenfeld GD, Angus DC, Annane D, Beale RJ, Bellinghan GJ, Bernard GR, Chiche JD, Coopersmith C, De Backer DP, French CJ, Fujishima S, Gerlach H, Hidalgo JL, Hollenberg SM, Jones AE, Karnad DR, Kleinpell RM, Koh Y, Lisboa TC, Machado FR, Marini JJ, Marshall JC, Mazuski JE, McIntyre LA, McLean AS, Mehta S, Moreno RP, Myburgh J, Navalesi P, Nishida O, Osborn TM, Perner A, Plunkett CM, Ranieri M, Schorr CA, Seckel MA, Seymour CW, Shieh L, Shukri KA, Simpson SQ, Singer M, Thompson BT, Townsend SR, Van der Poll T, Vincent JL, Wiersinga WJ, Zimmerman JL, Dellinger RP. Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock: 2016. Intensive Care Med. 2017 Mar;43(3):304-377. doi: 10.1007/s00134-017-4683-6. Epub 2017 Jan 18.
PubMed 28101605Guerin C, Reignier J, Richard JC, Beuret P, Gacouin A, Boulain T, Mercier E, Badet M, Mercat A, Baudin O, Clavel M, Chatellier D, Jaber S, Rosselli S, Mancebo J, Sirodot M, Hilbert G, Bengler C, Richecoeur J, Gainnier M, Bayle F, Bourdin G, Leray V, Girard R, Baboi L, Ayzac L; PROSEVA Study Group. Prone positioning in severe acute respiratory distress syndrome. N Engl J Med. 2013 Jun 6;368(23):2159-68. doi: 10.1056/NEJMoa1214103. Epub 2013 May 20.
PubMed 23688302Jozwiak M, Monnet X, Teboul JL. Optimizing the circulation in the prone patient. Curr Opin Crit Care. 2016 Jun;22(3):239-45. doi: 10.1097/MCC.0000000000000308.
PubMed 27101363Jozwiak M, Teboul JL, Anguel N, Persichini R, Silva S, Chemla D, Richard C, Monnet X. Beneficial hemodynamic effects of prone positioning in patients with acute respiratory distress syndrome. Am J Respir Crit Care Med. 2013 Dec 15;188(12):1428-33. doi: 10.1164/rccm.201303-0593OC.
PubMed 24102072Bellani G, Laffey JG, Pham T, Fan E, Brochard L, Esteban A, Gattinoni L, van Haren F, Larsson A, McAuley DF, Ranieri M, Rubenfeld G, Thompson BT, Wrigge H, Slutsky AS, Pesenti A; LUNG SAFE Investigators; ESICM Trials Group. Epidemiology, Patterns of Care, and Mortality for Patients With Acute Respiratory Distress Syndrome in Intensive Care Units in 50 Countries. JAMA. 2016 Feb 23;315(8):788-800. doi: 10.1001/jama.2016.0291.
PubMed 26903337Guerin C, Beuret P, Constantin JM, Bellani G, Garcia-Olivares P, Roca O, Meertens JH, Maia PA, Becher T, Peterson J, Larsson A, Gurjar M, Hajjej Z, Kovari F, Assiri AH, Mainas E, Hasan MS, Morocho-Tutillo DR, Baboi L, Chretien JM, Francois G, Ayzac L, Chen L, Brochard L, Mercat A; investigators of the APRONET Study Group, the REVA Network, the Reseau recherche de la Societe Francaise d'Anesthesie-Reanimation (SFAR-recherche) and the ESICM Trials Group. A prospective international observational prevalence study on prone positioning of ARDS patients: the APRONET (ARDS Prone Position Network) study. Intensive Care Med. 2018 Jan;44(1):22-37. doi: 10.1007/s00134-017-4996-5. Epub 2017 Dec 7.
PubMed 29218379Wheeler AP, Bernard GR. Acute lung injury and the acute respiratory distress syndrome: a clinical review. Lancet. 2007 May 5;369(9572):1553-1564. doi: 10.1016/S0140-6736(07)60604-7.
PubMed 17482987Chiumello D, Brochard L, Marini JJ, Slutsky AS, Mancebo J, Ranieri VM, Thompson BT, Papazian L, Schultz MJ, Amato M, Gattinoni L, Mercat A, Pesenti A, Talmor D, Vincent JL. Respiratory support in patients with acute respiratory distress syndrome: an expert opinion. Crit Care. 2017 Sep 12;21(1):240. doi: 10.1186/s13054-017-1820-0.
PubMed 28899408Roch A, Guervilly C, Papazian L. Fluid management in acute lung injury and ards. Ann Intensive Care. 2011 May 30;1(1):16. doi: 10.1186/2110-5820-1-16.
PubMed 21906342Teboul JL, Monnet X, Chemla D, Michard F. Arterial Pulse Pressure Variation with Mechanical Ventilation. Am J Respir Crit Care Med. 2019 Jan 1;199(1):22-31. doi: 10.1164/rccm.201801-0088CI.
PubMed 30138573Yonis H, Bitker L, Aublanc M, Perinel Ragey S, Riad Z, Lissonde F, Louf-Durier A, Debord S, Gobert F, Tapponnier R, Guerin C, Richard JC. Change in cardiac output during Trendelenburg maneuver is a reliable predictor of fluid responsiveness in patients with acute respiratory distress syndrome in the prone position under protective ventilation. Crit Care. 2017 Dec 5;21(1):295. doi: 10.1186/s13054-017-1881-0.
PubMed 29208025Sibbald WJ, Paterson NA, Holliday RL, Baskerville J. The Trendelenburg position: hemodynamic effects in hypotensive and normotensive patients. Crit Care Med. 1979 May;7(5):218-24.
PubMed 467083Geerts BF, van den Bergh L, Stijnen T, Aarts LP, Jansen JR. Comprehensive review: is it better to use the Trendelenburg position or passive leg raising for the initial treatment of hypovolemia? J Clin Anesth. 2012 Dec;24(8):668-74. doi: 10.1016/j.jclinane.2012.06.003.
PubMed 23228872
Study at a glance
From the registry record, last updated by the sponsor on 2 Mar 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Tidal Volume Challenge to Detect Preload-responsiveness in Patients With Acute Respiratory Distress Syndrome (ARDS) During Prone Position
- ClinicalTrials.gov ID
- NCT04457739
- Acronym / sponsor ID
- PR-ARDS-PP / 2019-A00064-53
- Keywords
- Hemodynamic monitoring, preload responsiveness, ARDS, Fluid therapy
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 58 participants (actual)
- Lead sponsor
- Bicetre HospitalUniversity, hospital or other
- Study start
- 8 Jan 2019 (actual)
- Primary completion
- 6 May 2021 (actual)
- Study completion
- 31 Dec 2021 (actual)
- First posted
- 7 Jul 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Evaluation of preload responsiveness in ARDS patients during prone position is difficult and only one study showed Trendelenburg manoeuvre can be used in this group of patients. This study aims to investigate whether end-expiratory occlusion test, tidal volume challenge (using the changes in PPV) can be used to evaluate preload responsiveness in patients with ARDS ventilated with a low tidal volume and who underwent a PP session.
Detailed description
Acute respiratory distress syndrome (ARDS) which is a major cause of morbidity and mortality in the intensive care unit, is characterized by decreased lung volume, decreased lung compliance, increased pulmonary vascular resistance and pulmonary hypertension, which ultimately lead to right ventricular dysfunction. Moreover, through biventricular interdependence and inter-ventricular septum shift, the left ventricular filling is limited, which eventually results in a decrease in stroke volume. Due to the high risk of ventilation-induced lung injury, protective lung ventilation is recommended, mainly through a reduction in tidal volume. However, due to the profound hypoxemia inherent to this mode of ventilation, lung recruitment strategies are recommended. When the application of a recruitive positive end-expiratory pressure fails to correct hypoxemia, prone positioning (PP) is recommended. A randomized controlled trial (PROSEVA) reported that early application of prolonged PP sessions in patients with severe ARDS significantly decreased 28- and 90-day mortality. In addition to its respiratory effects (improvement in arterial oxygenation and lung recruitment), PP exerts different cardiovascular effects. By increasing oxygenation and recruiting lung regions, PP can reduce the right ventricular afterload. By increasing the intraabdominal pressure (IAP), PP can increase the venous return and the cardiac preload. This effect might depend on the level of IAP, because a high IAP might collapse the inferior vena cava, especially in the case of hypovolemia. If cardiac preload increases, the resultant effect on cardiac output might depend on the degree of preload responsiveness. Finally, by increasing the IAP, PP can increase the left ventricular afterload. In a recent clinical study, our group showed that PP increases right and left ventricular preload and decreased right ventricular afterload. However, PP increased cardiac output only in patients with preload responsiveness. In this study preload responsiveness was detected by an increase in cardiac output > 10% during a passive leg raising (PLR) test. Since PP sessions are recommended to last between 16 to 18 hours per day and since patients with ARDS often have an associated sepsis, hemodynamically instability may occur during PP sessions. The therapeutic decision is very tricky since the administration of fluid (the main therapeutic option in case of hemodynamic instability) is risky due to alteration of lung capillary membrane permeability. Thus, it is important to predict the benefits of fluid administration by using indices of preload responsiveness. The recommended indices of preload responsiveness are pulse pressure variation (PPV), stroke volume variation (SVV) and PLR. However, PPV and SVV cannot be used reliably during low tidal volume ventilation. Moreover, conventional PLR cannot be performed during PP. It is thus important to develop other preload responsiveness tests doable during PP. Our group proposed to perform an end-expiratory occlusion (EEO) test to predict fluid responsiveness in the supine position and more recently to perform a tidal volume challenge (TVC) by transiently increasing tidal volume from 6 to 8 mL/kg and observing the changes in PPV.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients with severe ARDS (according to the Berlin definition) undergoing a prone position session, already monitored with a transpulmonary thermodilution device and for whom the evaluation of preload responsiveness is needed owing to the occurrence of hemodynamic instability.
Key inclusion criteria (3 listed)
- ARDS patient
- Prone position
- Monitored by transpulmonary thermodilution and pulse contour analysis
Key exclusion criteria (3 listed)
- Age below 18
- No social security
- Refuse to participate in the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Tidal volume challengeIncreasing tidal volume from 6 to 8 mL/kg during 1 min | Other | – |
| End-expiratory occlusion testInterrupting the ventilator at end-expiration for 15-30 s and assessing the resulting changes in cardiac output | Other | – |
| Trendelenburg maneuverPatients remained in prone position with a 13° upward bed angulation throughout the study and then be positioned in a declining position at -12 ° for 1 minute | Other | – |
Primary outcome
Area under ROC curve of the change in pulse pressure variation during tidal volume challenge to detect preload responsiveness
Time frame: 1 minute after increasing tidal volume from 6 to 8mL/kg
1 secondary outcome
Area under ROC curve of the pulse pressure variation in tidal volume of 8ml/kg in continuous cardiac output during end-expiratory occlusion to detect preload dependence
Time frame: 1 minute after tidal volume increase to 8 ml/kg
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Mar 2022.
- Background: PubMed 10793167Ware LB, Matthay MA. The acute respiratory distress syndrome. N Engl J Med. 2000 May 4;342(18):1334-49. doi: 10.1056/NEJM200005043421806. No abstract available.
- Background: PubMed 27038480Vieillard-Baron A, Matthay M, Teboul JL, Bein T, Schultz M, Magder S, Marini JJ. Experts' opinion on management of hemodynamics in ARDS patients: focus on the effects of mechanical ventilation. Intensive Care Med. 2016 May;42(5):739-749. doi: 10.1007/s00134-016-4326-3. Epub 2016 Apr 1.
- Background: PubMed 28101605Rhodes A, Evans LE, Alhazzani W, Levy MM, Antonelli M, Ferrer R, Kumar A, Sevransky JE, Sprung CL, Nunnally ME, Rochwerg B, Rubenfeld GD, Angus DC, Annane D, Beale RJ, Bellinghan GJ, Bernard GR, Chiche JD, Coopersmith C, De Backer DP, French CJ, Fujishima S, Gerlach H, Hidalgo JL, Hollenberg SM, Jones AE, Karnad DR, Kleinpell RM, Koh Y, Lisboa TC, Machado FR, Marini JJ, Marshall JC, Mazuski JE, McIntyre LA, McLean AS, Mehta S, Moreno RP, Myburgh J, Navalesi P, Nishida O, Osborn TM, Perner A, Plunkett CM, Ranieri M, Schorr CA, Seckel MA, Seymour CW, Shieh L, Shukri KA, Simpson SQ, Singer M, Thompson BT, Townsend SR, Van der Poll T, Vincent JL, Wiersinga WJ, Zimmerman JL, Dellinger RP. Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock: 2016. Intensive Care Med. 2017 Mar;43(3):304-377. doi: 10.1007/s00134-017-4683-6. Epub 2017 Jan 18.
- Background: PubMed 23688302Guerin C, Reignier J, Richard JC, Beuret P, Gacouin A, Boulain T, Mercier E, Badet M, Mercat A, Baudin O, Clavel M, Chatellier D, Jaber S, Rosselli S, Mancebo J, Sirodot M, Hilbert G, Bengler C, Richecoeur J, Gainnier M, Bayle F, Bourdin G, Leray V, Girard R, Baboi L, Ayzac L; PROSEVA Study Group. Prone positioning in severe acute respiratory distress syndrome. N Engl J Med. 2013 Jun 6;368(23):2159-68. doi: 10.1056/NEJMoa1214103. Epub 2013 May 20.
- Background: PubMed 27101363Jozwiak M, Monnet X, Teboul JL. Optimizing the circulation in the prone patient. Curr Opin Crit Care. 2016 Jun;22(3):239-45. doi: 10.1097/MCC.0000000000000308.
- Background: PubMed 24102072Jozwiak M, Teboul JL, Anguel N, Persichini R, Silva S, Chemla D, Richard C, Monnet X. Beneficial hemodynamic effects of prone positioning in patients with acute respiratory distress syndrome. Am J Respir Crit Care Med. 2013 Dec 15;188(12):1428-33. doi: 10.1164/rccm.201303-0593OC.
- Background: PubMed 26903337Bellani G, Laffey JG, Pham T, Fan E, Brochard L, Esteban A, Gattinoni L, van Haren F, Larsson A, McAuley DF, Ranieri M, Rubenfeld G, Thompson BT, Wrigge H, Slutsky AS, Pesenti A; LUNG SAFE Investigators; ESICM Trials Group. Epidemiology, Patterns of Care, and Mortality for Patients With Acute Respiratory Distress Syndrome in Intensive Care Units in 50 Countries. JAMA. 2016 Feb 23;315(8):788-800. doi: 10.1001/jama.2016.0291.
- Background: PubMed 29218379Guerin C, Beuret P, Constantin JM, Bellani G, Garcia-Olivares P, Roca O, Meertens JH, Maia PA, Becher T, Peterson J, Larsson A, Gurjar M, Hajjej Z, Kovari F, Assiri AH, Mainas E, Hasan MS, Morocho-Tutillo DR, Baboi L, Chretien JM, Francois G, Ayzac L, Chen L, Brochard L, Mercat A; investigators of the APRONET Study Group, the REVA Network, the Reseau recherche de la Societe Francaise d'Anesthesie-Reanimation (SFAR-recherche) and the ESICM Trials Group. A prospective international observational prevalence study on prone positioning of ARDS patients: the APRONET (ARDS Prone Position Network) study. Intensive Care Med. 2018 Jan;44(1):22-37. doi: 10.1007/s00134-017-4996-5. Epub 2017 Dec 7.
- Background: PubMed 17482987Wheeler AP, Bernard GR. Acute lung injury and the acute respiratory distress syndrome: a clinical review. Lancet. 2007 May 5;369(9572):1553-1564. doi: 10.1016/S0140-6736(07)60604-7.
- Background: PubMed 28899408Chiumello D, Brochard L, Marini JJ, Slutsky AS, Mancebo J, Ranieri VM, Thompson BT, Papazian L, Schultz MJ, Amato M, Gattinoni L, Mercat A, Pesenti A, Talmor D, Vincent JL. Respiratory support in patients with acute respiratory distress syndrome: an expert opinion. Crit Care. 2017 Sep 12;21(1):240. doi: 10.1186/s13054-017-1820-0.
- Background: PubMed 21906342Roch A, Guervilly C, Papazian L. Fluid management in acute lung injury and ards. Ann Intensive Care. 2011 May 30;1(1):16. doi: 10.1186/2110-5820-1-16.
- Background: PubMed 30138573Teboul JL, Monnet X, Chemla D, Michard F. Arterial Pulse Pressure Variation with Mechanical Ventilation. Am J Respir Crit Care Med. 2019 Jan 1;199(1):22-31. doi: 10.1164/rccm.201801-0088CI.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Acute Respiratory Distress Syndrome and Septic Shock, run by Bicetre Hospital at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Area under ROC curve of the change in pulse pressure variation during tidal volume challenge to detect preload responsiveness (time frame: 1 minute after increasing tidal volume from 6 to 8mL/kg). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04457739, which also lists 18 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Mar 2022.