New registry to see if freezing or burning kidney tumors works Long-Term
NCT ID NCT05210933
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This registry follows 750 patients with small kidney tumors who are not good candidates for surgery. They receive either cryotherapy (freezing) or radiofrequency ablation (heating) to destroy the tumor. Researchers will track survival, kidney function, and complications over time, and collect blood and urine samples for lab studies.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
cryotherapy and radiofrequency ablation
What this could lead to
If successful, this registry could confirm that ablation is a safe and effective option for controlling small kidney tumors in patients who cannot have surgery.
What could go wrong
This is an observational registry, not a controlled trial, so it cannot prove cause and effect. The study is currently suspended, and results may take years to emerge.
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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University of Alberta
Edmonton, Alberta, Canada
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University of Calgary
Calgary, Alberta, Canada