Testing a new wearable device to monitor carbon dioxide levels in ambulances

Technical Feasibility Study of a Novel Wearable Capnograph (MARIE) in an Emergency Care Environment, Part 1

Not applicable Interventional Uppsala University · NCT06905613

This study is testing a new wearable device that tracks carbon dioxide levels in patients during ambulance rides to see if it can improve monitoring and help start treatment faster.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years and up
SexAll
SponsorUppsala University Academic / other
Locations1 site (Uppsala)
Trial IDNCT06905613 on ClinicalTrials.gov

What this trial studies

This study evaluates the technical feasibility of a novel wearable capnograph, known as MARIE, designed to monitor exhaled carbon dioxide levels in patients during ambulance transport. By measuring these levels, the study aims to enhance patient monitoring and potentially initiate treatment sooner in emergency situations. The trial involves both healthy volunteers and patients being transported by ambulance, with data collected to assess the device's effectiveness in a real-world emergency care environment.

Who should consider this trial

Good fit: Ideal candidates include healthy volunteers aged 18-84 and patients aged 18-84 being transported by ambulance.

Not a fit: Patients requiring oxygen supply, those in priority 1 ambulance transports, or those unable to provide informed consent may not benefit from this study.

Why it matters

Potential benefit: If successful, this device could improve monitoring and treatment outcomes for patients during ambulance transport.

How similar studies have performed: While this approach is innovative, similar studies have not been widely reported, indicating this may be a novel exploration in emergency monitoring.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 20 healthy volunteers 18-84 years
* 30 patients between 18-84 years being transported by ambulance

Exclusion Criteria:

* Priority 1 ambulance transports
* Patients needing oxygen supply
* Known pregnancy
* Patients unable to provide informed consent

Where this trial is running

Uppsala

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Technical FeasibilityAmbulancesMARIE CapnographMARIE Nasal Adapter Set O2 - AdultMainstream Respiratory Infrared Equipmentcapnograph
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.