Blood 'Cleaning' may bring relief to High-Altitude sufferers
NCT ID NCT04557995
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a procedure called erythrocytapheresis—which removes extra red blood cells from the blood using a machine—can safely reduce symptoms of chronic mountain sickness. The trial will enroll 112 long-term high-altitude residents with very high hemoglobin levels. Researchers will measure symptom scores and walking ability to see if the procedure helps.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
erythrocytapheresis (a procedure that removes excess red blood cells using a machine)
What this could lead to
If it works, this could provide a safe, non-drug way to relieve symptoms like headache and fatigue in people with chronic mountain sickness.
What could go wrong
This is a relatively small trial (112 people) and the procedure is not a cure—it only manages symptoms temporarily. Risks include side effects from the blood separation process.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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NO.953 Hospital
RECRUITINGXigazê, Tibet, 857000, China
Contact Phone: •••-•••-•••• Email: •••••@•••••