Cleaner air, healthier heart? trial tests HEPA filters against atherosclerosis
NCT ID NCT05867381
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether using HEPA air filters at home can slow the progression of heart disease in adults aged 65-84 who have a history of ischemic heart disease. Over 112 participants in Los Angeles will use real or sham filters for several months, and researchers will measure changes in blood pressure, artery stiffness, and blood markers. The goal is to see if reducing indoor air pollution can help manage heart disease.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
HEPA air filter
What this could lead to
If it works, this could show that cleaning indoor air helps slow heart disease, offering a simple way to protect heart health.
What could go wrong
This is a small, early-stage trial with 112 people, so results may not apply to everyone. The effect of air filters on heart disease is still uncertain.
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: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Keck School of Medicine, University of Southern California
RECRUITINGLos Angeles, California, 90033, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••