Could POTS be an autoimmune disorder? new study investigates
NCT ID NCT02725060
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study at Vanderbilt University Medical Center is looking at whether people with postural tachycardia syndrome (POTS) have higher levels of certain immune proteins that might affect their symptoms. Researchers will measure these proteins in blood samples and test how the heart and blood vessels respond to specific drugs. The goal is to understand the role of the immune system in POTS, 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.
Active substance
phenylephrine, isoproterenol, and low-dose radiation
What this could lead to
If successful, this could help explain why some people develop POTS and point toward immune-based treatments.
What could go wrong
This is an early observational study with only 58 participants, so results may not apply to everyone with POTS. It is not testing a treatment.
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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Locations
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Autonomic Dysfunction Center
Nashville, Tennessee, 37232, United States
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University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, 73117-1213, United States