Long COVID heart mystery: scientists probe Nerve-Immune link
NCT ID NCT05421208
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at why some people develop a fast heart rate and dizziness months after COVID-19, a condition called post-COVID tachycardia syndrome. Researchers will measure immune markers and nerve activity in 60 participants to see if ongoing inflammation and reduced vagal nerve function are the cause. The goal is to better understand long COVID, not to test a new treatment.
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 successful, this could reveal why long COVID causes rapid heart rate and point toward future treatments targeting the immune or nervous system.
What could go wrong
This is an early observational study with only 60 people. It aims to understand the condition, not test a treatment, so direct benefits are unlikely.
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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Vanderbilt University Medical Center
RECRUITINGNashville, Tennessee, 37232, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Email: •••••@•••••
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