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Do all pulse oximeters tell the same story? a walk test puts them to the test

NCT ID NCT07742865

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 03, 2026 · Last updated Aug 04, 2026 · Updated 1 time

Summary

This study asks whether five different pulse oximeters give matching readings of oxygen saturation and heart rate when used at the same time during a standard 6-minute walk test. Adults in a pulmonary rehabilitation program will wear all five devices while walking, and the results will be compared to see how well the devices agree. The goal is to find out if any device is more reliable for spotting drops in oxygen levels during exercise.

What this could mean

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

Active substance
Pulse oximeters (five different devices)
What this could lead to
If the devices agree well, it could support using any of them interchangeably in clinical practice, improving consistency in monitoring oxygen levels during exercise tests.
What could go wrong
The study is small and observational, so results may not apply to all patients or settings. Differences between devices could be due to random variation, and the trial does not test treatment outcomes.

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

56 people

The number who actually took part.

Started

Jun 2025

Finished

Mar 2026

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

Patients admitted to an outpatient pulmonary rehabilitation program

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 patients referred to our Cardiorespiratory Unit for a pulmonary rehabilitation programme * Aged over 18, no maximum age limit * Absence of language barriers or cognitive impairments that would make it impossible to explain the protocol * Resting SpO2 \> 90% * Signing the informed consent form after receiving detailed information about the study. Exclusion Criteria: * Any clinical condition that makes it impossible or compromises the performance of a walking test: unstable heart disease, acute myocarditis and/or pericarditis, acute arrhythmia, severe pulmonary hypertension, deep vein thrombosis, severe asthma, acute orthopaedic or rheumatic condition * Unstable clinical condition (patient hospitalised or less than 4 weeks after an exacerbation leading to hospitalisation) * Oxygen therapy at rest and/or during walking * Uncontrolled arterial hypertension (AHT) at rest * Known cardiac rhythm disorder * Unexplained chest pain at rest * Mechanical interference with the possibility of placing pulse oximeters: skin lesions, bandages, plaster casts, etc. * Withdrawal of consent during the study * Systemic scleroderma, sclerodactyly, history of any type of vasculitis * Symptomatic Raynaud's phenomenon * Marked clubbing * Known haemoglobinopathy * Refusal to remove nail polish

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As listed by the trial registrant

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

Contacts and locations

Locations

  • Hôpital de La Tour

    Meyrin, Canton of Geneva, 1217, Switzerland

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