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Extracorporeal Membrane OxygenationON-SCENENCT04620070

ON-SCENE Initiation of Extracorporeal CardioPulmonary Resuscitation During Refractory Out-of-Hospital Cardiac Arrest

A study testing ECPR in people with Extracorporeal Membrane Oxygenation and Cardiac Arrest, run by Erasmus Medical Center at 4 sites in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Hypothesis: Implantation of on-scene ECPR by the HEMS teams in patients with sustained out-of-hospital cardiac arrest, results in the rapid return of circulation and, thus, improved survival and less neurological impairment, which is associated with lower health care costs. Read more about this study

Who is it for?
Ages 18 to 50 years
What is being tested?
ECPR
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
221 participants
Where
4 sitesNetherlands
Study dates
15 Oct 2021to 1 Jul 2025
Phase
Interventional
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 to 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • - Age between 18 and 50 years, known or as estimated at inclusion by the HEMS physician.
  • Witnessed arrest (last seen well <5 min), OR signs of life (gasping, movement)
  • Initial rhyme is VT/VF OR Suspected of having a pulmonary embolism
  • Refractory cardiac arrest lasting longer than 20 minutes and shorter than 45 min
  • If age is not exactly known at inclusion and is estimated by the HEMS physician between 18 and 50 years but finally the patient appears to be younger or older, the patient will not be excluded.

Who cannot join

  • - CO2 et<1.2 kPa (10 mmHg) during CPR
  • No clear echographic visualisation of either the femoral artery or the femoral vein.
  • Expected time from collapse to arrival at an ECPR center with a direct available ECPR team is less than 30 min.
  • The following patients will be withdrawn after initial inclusion as soon as the following information becomes available:
  • Known malignancy
  • Known intracranial haemorrhage/ischemia <6 weeks
Show all 9Show fewer
  • Care dependent for daily activities before arrest
  • Patients with a "do not resuscitate" order, which was not known at time of the arrest.
  • Refusal of deferred consent by the next of kin or by the patient himself to use the data. Deferred consent will not be asked to relatives of patients who die in scene, but are included in the study.

Trial locations and contacts

4 sites in 1 country.

Netherlands4 sites
  • Amsterdam UMC

    Amsterdam

  • UMCG

    Groningen

  • Radboud

    Nijmegen

  • ErasmusMC

    Rotterdam, 3015GD

Other trials in Netherlands

About this study

Official title: ON-SCENE Initiation of Extracorporeal CardioPulmonary Resuscitation (ECPR) During Refractory Out-of-Hospital Cardiac Arrest

Hypothesis: Implantation of on-scene ECPR by the HEMS teams in patients with sustained out-of-hospital cardiac arrest, results in the rapid return of circulation and, thus, improved survival and less neurological impairment, which is associated with lower health care costs.

Read the detailed description

Rationale: Approximately half of all cardiac arrest patients achieve return of spontaneous circulation (ROSC) within 10 minutes. However, If ROSC is not achieved within 20 minutes, favourable neurological outcome is rare. Currently, patients without ROSC at scene die at scene, or are transported (while still in cardiac arrest) to the hospital. In the hospital, advanced life support is continued, or, when presented to selected hospitals capable for this strategy, patients receive Extracorporeal CardioPulmonary Resuscitation (ECPR). ECPR is a strategy in which a miniaturized heart-lung machine (similar to that used in open-heart surgery) is attached to the patient. Nowadays, the greatest drawback transporting OHCA patients with refractory arrest to the hospital are the low quality of thorax compression during transport and long time needed to arrive in the hospital, in part because not all hospitals are able to provide this treatment. In the Netherlands, Helicopter Emergency Medical Services (HEMS) deliver highly specialized medical care to trauma and non-trauma patients, covering the entire country.

Hypothesis: Implantation of on-scene ECPR by the HEMS teams in patients with sustained out-of-hospital cardiac arrest, results in the rapid return of circulation and, thus, improved survival and less neurological impairment, which is associated with lower health care costs.

Objective: To improve survival to hospital discharge and costs/QALY in young patients with OHCA by decreasing the time in cardiac arrest by initiating ECPR on scene.

Being tested
ECPR
Keywords
ECPR, prehospital ECPR, out of hospital cardiac arrest
Medical subject headings
Heart Arrest, Out-of-Hospital Cardiac Arrest

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ECPRProcedure or surgery

    Application of prehospital ECPR

Study groups in NCT04620070
Study groupRoleWhat they receive
ConventionalNo interventionIn the Netherlands, out-of-hospital cardiac arrest (OHCA) is managed by paramedics. In this study, in the conventional arm, OHCA is managed by a physician of the Helicopter Emergency Medical Services (HEMS), but without the possibility of prehospital ECPR.
Intervention groupExperimentalOHCA managed by the physician of the HEMS team, but with the possibility of prehospital ECPR.
Receives: Procedure: ECPR

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Hospital Survival

    (% patients surviving hospital discharge)

    Measured: Hospital discharge (on average 6 weeks)

Secondary outcomes (2)
  1. Favourable neurological outcome (CPC 1-2)

    (% of patients at least performing daily life activities independent)

    Measured: 6 months after cardiac arrest

  2. Survival prehospital ECPR vs ECPR at the hospital vs no ECPR

    Measured: Hospital discharge (on average 6 weeks after cardiac arrest)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Nov 2020
  2. Study start15 Oct 2021
  3. Primary completion1 Jul 2025
  4. Study completion1 Jul 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Crossover
Model description
Stepped-wedge design
Masking
None (open label)
Enrolment
221 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04620070
Sponsor's protocol ID
NL73073.078.20
Acronym
ON-SCENE
Status last verified
Dec 2025
First submitted
26 Oct 2020
Last updated
24 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ali S, Moors X, van Schuppen H, Mommers L, Weelink E, Meuwese CL, Kant M, van den Brule J, Kraemer CE, Vlaar APJ, Akin S, Lansink-Hartgring AO, Scholten E, Otterspoor L, de Metz J, Delnoij T, van Lieshout EMM, Houmes RJ, Hartog DD, Gommers D, Dos Reis Miranda D. A national multi centre pre-hospital ECPR stepped wedge study; design and rationale of the ON-SCENE study. Scand J Trauma Resusc Emerg Med. 2024 Apr 17;32(1):31. doi: 10.1186/s13049-024-01198-x.

    PubMed 38632661

Questions about this trial

What is this clinical trial studying?

A study testing ECPR in people with Extracorporeal Membrane Oxygenation and Cardiac Arrest, run by Erasmus Medical Center at 4 sites in Netherlands.

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 5 inclusion and 9 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 24 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in Netherlands. 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?

Hospital Survival (time frame: Hospital discharge (on average 6 weeks)). 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 NCT04620070, which also lists 1 linked publication.

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 24 Dec 2025.

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