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Does every second count? denmark investigates emergency response times

NCT ID NCT06666647

Knowledge-focused Sponsor: Peter Martin Hansen Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 millions of emergency calls in Denmark to see if faster ambulance or helicopter response times help more people survive. Researchers will track patients from the moment help is called until they leave the hospital. The goal is to understand how response time affects survival and recovery.

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 2,500,000 people

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

Started

May 2025

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

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

Who is studied

Every patient in Denmark in need of ambulance and/or helicopter services treatment from 2016 to 2022 with one year follow-up

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * Every patient in Denmark in need of ambulance and/or helicopter services treatment in Denmark from 2016-2022 with outgoing response mode A (with lights and sirens) and B (without lights and sirens) is eligible for inclusion in the study. Exclusion Criteria: * No civil personal registration number available * Patient not identified * Patient not entered in the prehospital electronic patient journal * invalid data entered * No linkage between substitue personal register number and actual personal register number for patients identified later;

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As listed by the trial registrant

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

Emergency medical services Intensive care patients invasively ventilated Intensive care unit days Response Survival outcomes TRIAGE

Contacts and locations

Locations

  • Odense University Hospital

    Odense, 5000, Denmark

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