Breath test could replace needles for blood disorder diagnosis

NCT ID NCT03008642

First seen Jun 26, 2026 ยท Last updated Jun 26, 2026

Summary

This study tested a non-invasive breathing technique (CO-rebreathing) to measure red blood cell mass in people with polycythemia, a condition with too many red blood cells. The goal was to see if it works as well as the standard radioactive test. Sixty adults took part, and the results could lead to a simpler, safer diagnostic option.

What this could mean

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

Active substance
CO-rebreathing technique
What this could lead to
If successful, this could provide a faster, non-invasive alternative to the standard isotopic test for diagnosing polycythemia, making diagnosis easier in more clinics.
What could go wrong
This is a small, completed study with only 60 participants, so results may not apply to everyone. The CO-rebreathing method may not be as accurate as the standard test.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Myeloproliferative Disorders polycythemia

As listed by the trial registrant

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

Contacts and locations

Locations

  • CHU Amiens Picardie

    Amiens, Picardie, 80054, France

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