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Can first responders save more lives in cardiac arrest? new study investigates

NCT ID NCT07323667

Knowledge-focused Sponsor: Felix Brinkmann Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether a new first responder system in the Swiss canton of Zug helps people who have a cardiac arrest outside of a hospital. Researchers will compare survival rates and heart rhythms before and after the system was put in place. The study includes 250 adults and uses data from emergency service records. It also explores if having an emergency doctor or a critical care paramedic lead the team makes a difference.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this study could show that having trained first responders (like firefighters or police) arrive before paramedics improves survival and heart recovery in cardiac arrest patients.
What could go wrong
This is an observational study comparing data before and after the system was set up, not a controlled experiment. Other factors could influence results, and findings may not apply to other regions.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 250 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2025

Expected to finish

Aug 2027

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study population will consist of individuals who experienced out-of-hospital cardiac arrest (OHCA) within the canton of Zug, Switzerland. Participants will be identified based on entries in local emergency medical services (EMS) registries and the national Swiss Reca registry. The population reflects all eligible OHCA cases attended by the Zug EMS, including both pre- and post-implementation periods of the First Responder system.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adults (18 years or older) who experienced out-of-hospital cardiac arrest (OHCA) in the canton of Zug. Exclusion Criteria: * Patients younger than 18 years (pediatric cases). * Patients with a documented refusal (written or verbal) to use data for research purposes.

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Conditions

The condition(s) this trial relates to.

cardiac arrest

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Bystander effect Cardiac arrest (CA) Cardiac arrest with successful resuscitation Cardiopulmonary resuscitation (CPR) Critical care medicine Defibrillators Emergency medical services First aid Paramedical professionals Resuscitation Survival rate

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Rettungsdienst des Kantons Zug // Emergency Medical Service of the Canton Zug

    Zug, Canton of Zug, 6300, Switzerland

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