Clinical trial NCT01511666: Hyperinvasive Approach in Cardiac Arrest
Official title: Hyperinvasive Approach to out-of Hospital Cardiac Arrest Using Mechanical Chest Compression Device, Prehospital Intraarrest Cooling, Extracorporeal Life Support and Early Invasive Assessment Compared to Standard of Care. A Randomized Parallel Groups Comparative Study. "Prague OHCA Study"
Study type: INTERVENTIONAL
Overall status: TERMINATED
Phase: NA
Conditions: Out-of Hospital Cardiac Arrest
Keywords: cardiac arrest
mechanical chest compressions
intraarrest cooling
ECLS
Lead sponsor: Charles University, Czech Republic
Sponsor class: OTHER
First posted: 2012-01-19
Enrollment: 256
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Prague out-of Hospital Cardiac Arrest (OHCA) study is a prospective randomized multicenter clinical study comparing use of prehospital intraarrest hypothermia, mechanical chest compression device, extracorporeal life support (ECLS) and early invasive investigation and treatment (coronary angiography/percutaneous coronary intervention \[PCI\]; pulmonary angiography/percutaneous embolectomy; aortography) in all patients with OHCA of presumed cardiac origin compared to standard of care. It is hypothesized, that above stated "hyperinvasive" approach might improve outcome of out-of hospital cardiac arrest victims.

Detailed description: Background: Out of hospital cardiac arrest (OHCA) has a poor outcome. Recent non-randomized study of ECLS (extracorporeal life support) in OHCA suggested further prospective multicenter studies to define population with OHCA that would benefit from ECLS.

Aim: to perform a prospective randomized multicenter clinical study comparing use of prehospital intraarrest hypothermia, mechanical chest compression device, ECLS and early invasive investigation and treatment (coronary angiography/percutaneous coronary intervention \[PCI\]; pulmonary angiography/percutaneous embolectomy; aortography) in all patients with OHCA of presumed cardiac origin compared to standard of care.

Planned intervention: patients with witnessed OHCA without ROSC (return of spontaneous circulation) after a minimum of 5 minutes of ACLS by emergency medical service (EMS) team will be after fulfilling of inclusion/exclusion criteria for the study randomized in a 1:1 design to standard vs. hyperinvasive arm. Patients in standard arm will be further managed as per recent guidelines. In hyperinvasive arm, mechanical compression device together with intranasal cooling will be immediately instituted and patients will be transferred to cardiac center directly to cathlab under ongoing CPR. After admission to cathlab, overall status, ROSC and ECLS inclusion/exclusion criteria will be evaluated and in case of no contraindications to ECLS and no ROSC or ROSC with shock, veno-arterial ECLS will be started as soon as possible, not later than 60 minutes after cardiac arrest onset. After ECLS institution, mild hypothermia will be continued by means of ECLS cooling and immediate invasive investigation will be performed in all patients.

Standard postresuscitation care will follow.

Eligibility criteria: Inclusion Criteria:

* minimum of 18 and maximum of 65 years
* witnessed out-of-hospital cardiac arrest of presumed cardiac cause
* minimum of 5 minutes of ACLS performed by emergency medical service team without sustained ROSC
* unconsciousness (Glasgow Coma Score \< 8)
* ECMO team and bed-capacity in cardiac center available.

Exclusion Criteria:

* OHCA of presumed non-cardiac cause
* unwitnessed collapse
* pregnancy
* sustained ROSC within 5 minutes of ACLS performed by EMS team
* conscious patient
* known bleeding diathesis or suspected or confirmed acute or recent intracranial bleeding
* suspected or confirmed acute stroke
* known severe chronic organ dysfunction or other limitations in therapy
* "do not resuscitate" order or other circumstances making 180 day survival unlikely
* known pre-arrest cerebral performance category CPC ≥ 3.

Primary outcomes:
measure: Composite endpoint of survival with good neurological outcome (CPC 1-2).
timeFrame: 6 months
Secondary outcomes:
measure: Neurological recovery
timeFrame: 30 days
measure: Cardiac recovery
timeFrame: 30 days
Other outcomes:
Locations:
city: Prague
country: Czechia
facility: General Teaching Hospital
Study officials:
affiliation: General University Hospital
name: Jan Belohlavek
role: PRINCIPAL_INVESTIGATOR
References:
citation: Rob D, Smalcova J, Smid O, Kral A, Kovarnik T, Zemanek D, Kavalkova P, Huptych M, Komarek A, Franek O, Havranek S, Linhart A, Belohlavek J. Extracorporeal versus conventional cardiopulmonary resuscitation for refractory out-of-hospital cardiac arrest: a secondary analysis of the Prague OHCA trial. Crit Care. 2022 Oct 27;26(1):330. doi: 10.1186/s13054-022-04199-3.
citation: Belohlavek J, Smalcova J, Rob D, Franek O, Smid O, Pokorna M, Horak J, Mrazek V, Kovarnik T, Zemanek D, Kral A, Havranek S, Kavalkova P, Kompelentova L, Tomkova H, Mejstrik A, Valasek J, Peran D, Pekara J, Rulisek J, Balik M, Huptych M, Jarkovsky J, Malik J, Valerianova A, Mlejnsky F, Kolouch P, Havrankova P, Romportl D, Komarek A, Linhart A; Prague OHCA Study Group. Effect of Intra-arrest Transport, Extracorporeal Cardiopulmonary Resuscitation, and Immediate Invasive Assessment and Treatment on Functional Neurologic Outcome in Refractory Out-of-Hospital Cardiac Arrest: A Randomized Clinical Trial. JAMA. 2022 Feb 22;327(8):737-747. doi: 10.1001/jama.2022.1025.
citation: Belohlavek J, Kucera K, Jarkovsky J, Franek O, Pokorna M, Danda J, Skripsky R, Kandrnal V, Balik M, Kunstyr J, Horak J, Smid O, Valasek J, Mrazek V, Schwarz Z, Linhart A. Hyperinvasive approach to out-of hospital cardiac arrest using mechanical chest compression device, prehospital intraarrest cooling, extracorporeal life support and early invasive assessment compared to standard of care. A randomized parallel groups comparative study proposal. "Prague OHCA study". J Transl Med. 2012 Aug 10;10:163. doi: 10.1186/1479-5876-10-163.