Could 'Zombie Cells' be behind long COVID? new study aims to find out
NCT ID NCT04903132
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study examines whether senescent cells—sometimes called 'zombie cells' that accumulate with age—contribute to Long-Hauler Syndrome, a condition where COVID-19 symptoms persist long after the initial infection. Researchers at Mayo Clinic will compare markers of cellular aging in 200 adults who have had COVID-19, including those with Long-Hauler Syndrome and healthy controls. If a strong link is found, it may support launching a future trial of senolytic drugs, which are designed to clear these aged cells from the body.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If a link is found, this could pave the way for a trial of senolytic drugs to treat Long-Hauler Syndrome.
What could go wrong
This is a small pilot study that only looks for correlations, not a treatment test. It may not lead to any therapy.
Disclaimer
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This is a summary of
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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Locations
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Mayo Clinic in Rochester
Rochester, Minnesota, 55905, United States