Mountain air on tap: scientists test heart under low oxygen
NCT ID NCT07431567
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at how the right side of the heart works when oxygen levels drop, like at high altitudes. Healthy volunteers will breathe special gas mixtures that mimic altitudes of 2,500 and 4,000 meters, both at rest and during light cycling. The goal is to create a baseline for healthy hearts, so doctors can later better support patients with heart or lung conditions who want to exercise in the mountains.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
normobaric hypoxia (simulated altitude via special gas mixture)
What this could lead to
If successful, this study could help doctors better understand how the heart handles low oxygen, potentially improving care for people with heart or lung conditions who travel to high altitudes.
What could go wrong
This is a small, early-stage study in healthy volunteers, not patients. The results may not directly apply to people with heart or lung disease, and the simulated altitude may not fully reflect real mountain conditions.
Disclaimer
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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: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Consultant Clinic of Pulmonology, University Hospital of Zurich
RECRUITINGZurich, Canton of Zurich, 8091, Switzerland
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Phone: •••-•••-•••• Email: •••••@•••••
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Consultant Clinic of Pulmonology, University Hospital of Zurich
NOT_YET_RECRUITINGZurich, 8091, Switzerland
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact