New wearable capnograph could revolutionize ambulance monitoring

NCT ID NCT06905613

First seen May 08, 2026 · Last updated Jun 23, 2026 · Updated 8 times

Summary

This study tested a new wearable capnograph called MARIE in an ambulance setting. The device measures exhaled carbon dioxide and breathing rate. 20 healthy volunteers and 30 patients being transported by ambulance participated. The goal was to see if the device gives reliable readings during transport.

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Contacts and locations

Locations

  • Ambulansstationen Uppsala Region

    Uppsala, Uppsala County, 75185, Sweden

What this could mean

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

Active substance

Wearable capnograph (MARIE) device

What this could lead to

If successful, this could lead to better monitoring of patients during ambulance transport, potentially enabling earlier treatment.

What could go wrong

This is a small, early feasibility study with only 49 participants. The device may not work reliably in real-world conditions, and results may not apply to all patients.

As listed by the trial registrant

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