Could a simple breathing machine replace Blood-Letting for High-Altitude disease?

NCT ID NCT07600086

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether a non-invasive ventilator (a mask that helps you breathe at night) can lower hemoglobin levels in people with high-altitude polycythemia, a condition where the blood becomes too thick due to low oxygen. About 70 adults living at high altitudes will either receive standard care or standard care plus nightly ventilator use. The main goal is to see if hemoglobin drops after 3 and 6 months, which would mean less strain on the heart and blood vessels.

What this could mean

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

Active substance
non-invasive ventilator (CPAP or BiPAP)
What this could lead to
If it works, this could offer a new, drug-free way to manage high-altitude polycythemia and reduce the risk of complications like blood clots.
What could go wrong
This is a small, early-stage study with only 70 participants, so results may not apply to everyone. The treatment requires wearing a mask during sleep, which some may find uncomfortable.

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.

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • People's Hospital of Xizang Autonomous Region;Lhasa, Xizang Autonomous Region, China, 850000

    Xizang, China

  • Xizang Autonomous Region People's Hospital

    Xizang, China

    Contact Phone: •••-•••-•••• Email: •••••@•••••

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