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New CPR breathing monitor tested in ambulances

NCT ID NCT04988906

Knowledge-focused Sponsor: Sunnybrook Health Sciences Centre 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested a device that gives paramedics real-time feedback on how well they are breathing for a patient during CPR after a cardiac arrest. Researchers compared breathing quality before and after using the device in over 400 patients. The goal was to see if the device helps paramedics deliver the right amount of air during resuscitation.

What this could mean

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

Active substance
Zoll Accuvent Ventilation Monitor (device)
What this could lead to
If successful, this could help paramedics deliver better breathing support during CPR, potentially improving survival chances for cardiac arrest patients.
What could go wrong
This is a small, completed before-and-after study, not a randomized trial. The device may not work well in all real-world emergency settings, and better ventilation does not guarantee better survival.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

412 people

The number who actually took part.

Started

Aug 2021

Finished

Mar 2023

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.

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: * All adult out-of-hospital cardiac arrests treated by paramedics Exclusion Criteria: * traumatic cardiac arrest * prehospital Do Not Resuscitate (DNR) orders

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Conditions

The condition(s) this trial relates to.

cardiac arrest Out-of-Hospital Cardiac Arrest Respiratory Aspiration

As listed by the trial registrant

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

Out-of-hospital cardiac arrest

Contacts and locations

Locations

  • Sunnybrook Health Science Centre

    Toronto, Ontario, M4N3M5, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.