NCT04446585

Brief Summary

The study aims to increase proportions of bystander defibrillation during out-of-hospital cardiac arrest (hereof referred to as cardiac arrest) in residential areas with a high density of cardiac arrests. The intervention consists of Automated External Defibrillators (AEDs) and residents' involvement in resuscitation through training and enrollment as citizen responders.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
260

participants targeted

Target at P75+ for not_applicable

Timeline
8mo left

Started Dec 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
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 Progress87%
Dec 2021Jan 2027

First Submitted

Initial submission to the registry

June 16, 2020

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 25, 2020

Completed
1.4 years until next milestone

Study Start

First participant enrolled

December 1, 2021

Completed
5.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2027

Last Updated

September 15, 2023

Status Verified

September 1, 2023

Enrollment Period

5.1 years

First QC Date

June 16, 2020

Last Update Submit

September 14, 2023

Conditions

Keywords

Suddan cardiac arrestHeart ArrestHeart DiseasesCardiovascular Diseases

Outcome Measures

Primary Outcomes (1)

  • Bystander defibrillation

    Proportion of bystander defibrillation of witnessed cardiac arrests

    Up to five years after implementation of the intervention

Secondary Outcomes (1)

  • 30-day survival

    30 days after date of cardiac arrest

Study Arms (2)

Control sites

NO INTERVENTION

* For all 1-1-2 calls with suspected cardiac arrest to the emergency dispatch center will activate a two-tiered response consisting of dispatch of an ambulance with an emergency medical technician, a physician-staffed mobile emergency care unit, and citizen first responders through the Heart Runner app. * The medical dispatcher offers telephone assisted cardiopulmonary resuscitation (CPR) to bystanders. Furthermore, if more than two bystanders are present and an AED is accessible within 1½ minute travel distance (depending on the type of terrain), then one bystander is guided to localize and retrieve the AED.

Intervention sites

EXPERIMENTAL

As a supplement to the standard care as described in the control arm, the following will be supplied: * Strategical deployment of AEDs with 24:7 availability and 1½ minute walking distance to every residence within the area. The AEDs will be registered with the AED network and thus linked to the emergency dispatch center. * The emergency dispatch center will retrieve data from used AEDs. * For each interventional area, approximately 120 residents will receive a course in CPR and AED use and subsequently be recruited as citizen responders so that they can be activated through the HeartRunner app in case of a nearby cardiac arrest.

Device: Automated External Defibrillator (AED)Other: Training in cardiopulmonary resuscitation and AED useOther: Activation of citizen responders

Interventions

Deployment of AEDs

Intervention sites

Residents will undergo 30-minute courses at study start and if needed during the trial period. During the course they will also be recruited as citizen responders

Intervention sites

Citizen responders will be activated in case of suspected cardiac arrest through the heart runner app.

Intervention sites

Eligibility Criteria

Age8 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • All witnessed cardiac arrests recognized registered in the Danish Cardiac Arrest Registry occurring within the study sites. This excludes non witnessed cardiac arrests.
  • Witnessed cardiac arrest
  • Non-traumatic etiology, this excludes intoxication, drowning or suicide.

You may not qualify if:

  • Cardiac arrest occurring in a nursing home
  • Cardiac arrest not treated by the EMS due to ethical reasons or obvious signs of death
  • Not true cardiac arrest (suspected, but not verified)
  • Cardiac arrests witnessed by the emergency medical personnel

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Emergency Medical Services Copenhagen

Ballerup Municipality, The Capital Region, 2750, Denmark

RECRUITING

Related Publications (1)

  • Juul Grabmayr A, Malta Hansen C, Bo N, Sheikh AP, Hassager C, Ersboll A, Kjaergaard J, Lippert F, Tjornhoj-Thomsen T, Gislason G, Torp-Pedersen C, Folke F. Community intervention to improve defibrillation before ambulance arrival in residential neighbourhoods with a high risk of out-of-hospital cardiac arrest: study protocol of a cluster-randomised trial (the CARAMBA trial). BMJ Open. 2023 Oct 10;13(10):e073541. doi: 10.1136/bmjopen-2023-073541.

MeSH Terms

Conditions

Out-of-Hospital Cardiac ArrestHeart ArrestHeart DiseasesCardiovascular Diseases

Interventions

DefibrillatorsCardiopulmonary Resuscitation

Intervention Hierarchy (Ancestors)

ElectrodesElectrical Equipment and SuppliesEquipment and SuppliesResuscitationEmergency TreatmentTherapeutics

Study Officials

  • Fredrik Folke, MD, PhD

    EMS Copenhagen

    PRINCIPAL INVESTIGATOR
  • Carolina M Hansen, MD, PhD

    EMS Copenhagen

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Fredrik Folke, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Due to the nature of the study, treatment allocation is not masked to rescuers or patients. The steering committee will, during the study, receive information on total numbers of arrests and overall success of providing defibrillation. The steering committee will not receive information on whether defibrillation took place in areas allocated to intervention or no intervention. Only the safety committee will have access to all information.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
M.D., PhD, Professor

Study Record Dates

First Submitted

June 16, 2020

First Posted

June 25, 2020

Study Start

December 1, 2021

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

January 1, 2027

Last Updated

September 15, 2023

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will not share

Locations