Zapping the heart: could radiation tame dangerous rhythms?
NCT ID NCT04843683
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests a single, precise dose of radiation to the heart to treat dangerous arrhythmias in 60 patients who haven't improved with medication or standard procedures. Researchers will monitor changes in heart rhythm events and medication use over 18 months. The goal is to see if this non-invasive approach can safely control the condition.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Stereotactic ablative radiotherapy (SBRT)
What this could lead to
If it works, this could offer a non-invasive option to control heart arrhythmias without surgery or long-term medication.
What could go wrong
This is a small, early-phase trial with only 60 participants. It may not work for everyone, and radiation to the heart carries risks like damage to nearby tissues.
Disclaimer
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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.
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: •••••@•••••
Locations
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Princess Margaret Cancer Center, University Health Network
RECRUITINGToronto, Ontario, M5G 2M9, Canada
Contact Phone: •••-•••-•••• Email: •••••@•••••