NCT06805344

Brief Summary

The OSIRIS trial is an investigator-initiated, multicenter, multinational, open-label, randomized controlled trial with a 2:1 concealed allocation of refractory out-of-hospital cardiac arrest (OHCA) patients to the extracorporeal cardiopulmonary resuscitation (ECPR) based approach versus the conventional cardiopulmonary resuscitation (CCPR) approach.

Trial Health

65
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
686

participants targeted

Target at P75+ for not_applicable

Timeline
50mo left

Started Feb 2025

Longer than P75 for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress24%
Feb 2025Jun 2030

First Submitted

Initial submission to the registry

April 8, 2024

Completed
10 months until next milestone

Study Start

First participant enrolled

February 1, 2025

Completed
2 days until next milestone

First Posted

Study publicly available on registry

February 3, 2025

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2029

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2030

Last Updated

February 3, 2025

Status Verified

January 1, 2025

Enrollment Period

4.3 years

First QC Date

April 8, 2024

Last Update Submit

January 30, 2025

Conditions

Keywords

cardiac arrestextracorporeal cardiopulmonary resuscitationextracorporeal membrane oxygenationout-of-hospital cardiac arrest

Outcome Measures

Primary Outcomes (1)

  • 90-day survival

    90-day survival

    90-days

Secondary Outcomes (2)

  • 90-day neurological outcome

    90-days

  • 90-day Health-related quality of life

    90-days

Other Outcomes (12)

  • Survival to discharge

    up to 90-days

  • 30-day survival

    30-days

  • Neurological outcome at discharge

    up to 90-days

  • +9 more other outcomes

Study Arms (2)

ECPR-based

EXPERIMENTAL

ECPR-based approach is defined as advanced cardiac life support (ACLS) per current guidelines with aim to proceed to in-hospital or out-of-hospital veno-arterial extracorporeal membrane oxygenation (V-A ECMO) if return of spontaneous circulation (ROSC) is not achieved before the cannulation.

Procedure: Extracorporeal cardiopulmonary resuscitation based approach

CCPR

ACTIVE COMPARATOR

CCPR is defined as conventional advanced cardiac life support (ACLS) per current guidelines without mechanical circulatory support (MCS) use until sustained return of spontaneous circulation (ROSC) is achieved or the patient pronounced dead.

Procedure: Conventional cardiopulmonary resuscitation

Interventions

ECPR-based approach is defined as ACLS per current guidelines with aim to proceed to in-hospital or out-of-hospital V-A ECMO if ROSC is not achieved before the cannulation.

Also known as: ECPR-based approach
ECPR-based

CCPR is defined as conventional ACLS per current guidelines without MCS use until sustained ROSC is achieved or the patient pronounced dead.

Also known as: CCPR
CCPR

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥18 and ≤ 70 years presumed or known
  • Witnessed OHCA
  • Bystander CPR provided
  • Presumed cardiac or unknown cause
  • An initial documented shockable rhythm of VF (ventricular fibrillation) or pulseless VT (ventricular tachycardia)
  • Minimum of ≥ 10 min of ACLS without ROSC or at least ≥ 3 defibrillations in ongoing VF/pulseless VT
  • Body morphology able to accommodate a mechanical chest compression device
  • ECPR team and intensive care unit (ICU) capacity in the receiving center available
  • Estimated transfer time from the scene to the hospital ≤ 30 minutes or to the scene ≤ 30 minutes
  • Eligible for intensive care without restrictions or limitations

You may not qualify if:

  • ACLS ≥ 30 minutes before randomization
  • Known limitations in care or a Do Not Attempt to Resuscitate (DNAR) order
  • Known severe disease making 90-day survival unlikely
  • Known bleeding diathesis or acute or recent intracranial bleeding
  • Known, obvious or suspected pregnancy
  • Known pre-arrest severe cognitive dysfunction (mRS ≥ 4)
  • Known hypothermia as a cause of cardiac arrest

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Heart ArrestVentricular FibrillationOut-of-Hospital Cardiac ArrestDeath, Sudden, Cardiac

Condition Hierarchy (Ancestors)

Heart DiseasesCardiovascular DiseasesArrhythmias, CardiacPathologic ProcessesPathological Conditions, Signs and SymptomsDeath, SuddenDeath

Study Officials

  • Jan Bělohlávek, MD, PhD

    General University Hospital, Prague

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jan Bělohlávek, MD, PhD

CONTACT

Daniel Rob, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The refractory OHCA trial is a multicenter, multinational, open-label, randomized trial with a 2:1 concealed allocation of refractory OHCA patients to ECPR-based approach versus CCPR approach.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
professor

Study Record Dates

First Submitted

April 8, 2024

First Posted

February 3, 2025

Study Start

February 1, 2025

Primary Completion (Estimated)

June 1, 2029

Study Completion (Estimated)

June 1, 2030

Last Updated

February 3, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will share