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Virtual call distribution may speed up emergency response times

NCT ID NCT04670835

Knowledge-focused Sponsor: Nantes University Hospital 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at whether virtualizing how incoming calls are distributed across emergency medical communication centers can improve how quickly calls are answered. Researchers analyzed over 1 million calls from five centers in France. The goal was to see if this change could help centers handle high call volumes better, especially during crises.

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 could help emergency call centers answer calls faster and improve service during peak times.
What could go wrong
This is a modeling study, not a clinical trial testing a treatment. Results may not apply to all centers or lead to direct improvements.

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

1,088,000 people

The number who actually took part.

Started

Apr 2021

Finished

Feb 2022

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

All Users calling through the five Emergency Medical Centers of the French Pays de la Loire region (5 areas of the region are : Loire-Atlantique, Maine-et-Loire, Mayenne, Sarthe, Vendée). In each Emergency Medical Center, an advanced telephone system automatically keeps track of all inbound calls. Average annual number of incoming calls for the 5 Emergency Medical Center of Pays de la Loire region is 1,6 million.

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: * All incoming calls passing through the five Emergency Medical Centers in the Pays de la Loire region (Loire-Atlantique, Maine-et-Loire, Mayenne, Sarthe and Vendée). In each center, an advanced telephone system automatically keeps track of all inbound calls. Exclusion Criteria: According to the French national consortium, incoming calls that hung up in less than 10 seconds are considered as dialing errors and are excluded

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As listed by the trial registrant

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

Emergency medical service communication systems, health care

Contacts and locations

Locations

  • CHU de Nantes

    Nantes, 44093, France