Cardiac Arrest Bundle of cARE Trial (CABARET)
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ClinicalTrials.gov Identifier: NCT05917717 |
Recruitment Status :
Not yet recruiting
First Posted : June 26, 2023
Last Update Posted : March 29, 2024
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Tracking Information | |||||||||
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First Submitted Date ICMJE | May 25, 2023 | ||||||||
First Posted Date ICMJE | June 26, 2023 | ||||||||
Last Update Posted Date | March 29, 2024 | ||||||||
Estimated Study Start Date ICMJE | April 2024 | ||||||||
Estimated Primary Completion Date | September 2024 (Final data collection date for primary outcome measure) | ||||||||
Current Primary Outcome Measures ICMJE |
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Original Primary Outcome Measures ICMJE | Same as current | ||||||||
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Current Secondary Outcome Measures ICMJE |
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Original Secondary Outcome Measures ICMJE |
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Current Other Pre-specified Outcome Measures | Not Provided | ||||||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||||||
Descriptive Information | |||||||||
Brief Title ICMJE | Cardiac Arrest Bundle of cARE Trial | ||||||||
Official Title ICMJE | Cardiac Arrest Bundle of Care Trial | ||||||||
Brief Summary | An out-of-hospital cardiac arrest is a sudden event where the heart stops beating and a person becomes unresponsive. During this event, vital organs in the body receive no blood flow, causing them to shut down. Without intervention to restart the heart, a person effectively dies. In the UK, around 60,000 people experience cardiac arrests each year, with most occurring at home. Despite prompt emergency service response, survival rates are typically low. There is technology available that has the potential to improve survival rates for out-of-hospital cardiac arrests. The intervention involves three devices used together: head-up position CPR (Elegard), active compression-decompression mechanical CPR (Lucas-3), and the Impedance Threshold device (Resqpod-16). When combined, these devices can enhance blood flow during resuscitation, potentially leading to improved initial resuscitation rates and higher rates of survival with normal brain function after a cardiac arrest. A pilot study is planned to test the feasibility of using these devices. The results will inform the design of a larger study to determine if this technology can indeed improve survival rates in out-of-hospital cardiac arrests. |
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Detailed Description | Out of hospital cardiac arrest (OOHCA) is the sudden cessation of effective cardiovascular circulation in the pre hospital setting. This is sadly a common occurrence within the UK with approximately 60,000 OOHCAs per year. In 30,000 of these, resuscitation is attempted by the ambulance service. Survival remains poor (2-12%) within the UK and even the best performing regions still lag someway behind exemplar global systems (Seattle 21%, Norway 25%). There are a plethora of reasons for variation in outcome, not limited to the availability of community defibrillators, the education and ability of bystanders to provide effective CPR, the response times of the emergency medical personnel, the training of emergency services personnel and their individual exposure to cardiac arrest, the availability of primary percutaneous coronary intervention, and even the availability of extracorporeal resuscitation. Despite poor outcomes from OOHCA for decades, there exists promising data from animal and cadaver studies that new technological devices could improve the currently poor blood flow generated by chest compressions during CPR, particularly cerebral blood flow. The current standard of care for patients with an OOHCA includes manual CPR delivered at a rate of 100-120 compressions per minute with a depth of 5 cm (maximum 6 cm). In turn, periodic inflation of the lungs using positive pressure ventilation to maintain oxygenation is mandated during CPR. Animal data have shown that blood flow to the heart and brain using this method is approximately 15-30% of normal. Conventional CPR is therefore unphysiological by definition, with intracerebral pressures being too high in the compression phase and intrathoracic pressure being too high in the release phase for adequate blood flow to the brain and heart respectively. Mechanisms and tools to improve this have been available for some time but using them synergistically to achieve improved cerebral and coronary blood flow is a relatively recent advance. It is now possible to mimic a more physiologically normal situation by combining 3 pieces of technology. These may lead to better organ perfusion during CPR and therefore better rates of survival. The 3 devices in question do this in different complementary ways, in turn;
The first retrospective study examining the combination of active compression decompression CPR with an ITD and HUP-CPR in humans was published in 2022, concluding that rapid initiation of bundle of care-CPR was associated with a higher likelihood of survival to hospital discharge after OHCA when compared with conventional CPR. 9. The first prospective human study using this triple bundle approach is currently ongoing in France. The 3 devices described above are all CE marked meaning that this trial is not a trial of an experimental device and therefore does not need to be reported to the MHRA for their regulatory approvals. Justification for undertaking the trial Survival from OOHCA in the UK remains extremely poor (2-12%). The fact that this has not changed over many decades is of concern. Additionally, the global health disparity that exists in survival from OOCHA between different healthcare systems is stark. The published animal data has created a plausible biological signal that improvements with cerebral blood flow are indeed possible using a bundle approach to neuroprotective CPR. The practicalities of performing this in human subjects in cardiac arrest is already being done in certain emergency medical systems globally. One study has published retrospective data with a signal to suggest that improved outcomes are possible using this approach. As far as the investigators are aware, no randomised control trial is currently being undertaken to test this hypothesis. The proposed treatment bundle holds the potential to change this, the investigators are of the opinion that this should be tested scientifically within the remit of a clinical trial and this is the first necessary stage of that process. The individual components have shown promise in animal studies but this has not been borne out in the human trials that have followed. The synergistic and complementary effect of the 3 devices that make up the bundle of care in this study have the potential to change outcomes. In parts of the USA (Seattle and Phoenix Fire departments) this bundle of care has been brought in due to the marked improvements in survival that have been seen. The investigators are of the opinion that an adequately powered randomised trial is essential to confirm these possible benefits. Research statement Out-of-hospital cardiac arrest (OOHCA) is a common event with poor long-term survival rates, often resulting in poor neurological outcomes. While there are several interventions that may improve survival and neurological outcomes, single interventions alone have not consistently demonstrated significant improvements in outcomes. The combination of head up cardiopulmonary resuscitation (CPR), active compression decompression CPR, and the use of an impedance threshold device has not yet been tested in a pragmatic randomised controlled trial. Therefore, the objective of this study is to assess the feasibility of conducting a randomized trial comparing usual care with a "bundle of care" approach incorporating the above interventions to improve patient outcomes after OOHCA. |
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Study Type ICMJE | Interventional | ||||||||
Study Phase ICMJE | Not Applicable | ||||||||
Study Design ICMJE | Allocation: Randomized Intervention Model: Parallel Assignment Intervention Model Description: Pilot study - randomised controlled trial Masking: Single (Outcomes Assessor)Masking Description: The study team will not be blinded to which patients receive which arm of the trial and will be aware of what each service is delivering in each phase of the study. The research team carrying out the flow up will be blinded to the arm of the trial that the participant was in when they are collecting outcome and follow up data. It is impossible to blind the care providers. Participants will be blinded to which arm of the trial they were in (should they regain capacity). |
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Condition ICMJE |
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Intervention ICMJE | Procedure: Neuroprotective 'bundle of care'
This includes the 3 devices:
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Study Arms ICMJE |
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Publications * |
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||||||
Recruitment Status ICMJE | Not yet recruiting | ||||||||
Estimated Enrollment ICMJE |
32 | ||||||||
Original Estimated Enrollment ICMJE |
30 | ||||||||
Estimated Study Completion Date ICMJE | October 2024 | ||||||||
Estimated Primary Completion Date | September 2024 (Final data collection date for primary outcome measure) | ||||||||
Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | 18 Years to 120 Years (Adult, Older Adult) | ||||||||
Accepts Healthy Volunteers ICMJE | No | ||||||||
Contacts ICMJE |
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Listed Location Countries ICMJE | United Kingdom | ||||||||
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Administrative Information | |||||||||
NCT Number ICMJE | NCT05917717 | ||||||||
Other Study ID Numbers ICMJE | CABARET | ||||||||
Has Data Monitoring Committee | No | ||||||||
U.S. FDA-regulated Product |
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IPD Sharing Statement ICMJE |
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Current Responsible Party | University Hospital Southampton NHS Foundation Trust | ||||||||
Original Responsible Party | Same as current | ||||||||
Current Study Sponsor ICMJE | University Hospital Southampton NHS Foundation Trust | ||||||||
Original Study Sponsor ICMJE | Same as current | ||||||||
Collaborators ICMJE |
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Investigators ICMJE |
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PRS Account | University Hospital Southampton NHS Foundation Trust | ||||||||
Verification Date | March 2024 | ||||||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |