Vacuum-Assisted sheath aims to clear kidney stones faster
NCT ID NCT07678255
First seen Jul 01, 2026 · Last updated Jul 01, 2026
Summary
This trial tests whether a vacuum-assisted ureteral access sheath (ClearPetra) removes kidney stones more completely than a standard rigid sheath (Navigator) during flexible ureteroscopy. About 156 adults with stones 1-3 cm will be randomly assigned to one sheath. The main goal is to see if ClearPetra leads to a higher stone-free rate at one month, with fewer repeat treatments and similar safety.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
ClearPetra ureteral access sheath (vacuum-assisted) vs Navigator ureteral access sheath (standard rigid)
What this could lead to
If the vacuum-assisted sheath works better, it could mean fewer repeat procedures and shorter surgeries for people with kidney stones.
What could go wrong
This is a single-center trial with 156 participants, so results may not apply broadly. The new sheath might not improve stone clearance or could have unexpected complications.
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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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Virgen del Rocio University Hospital
Seville, Seville, 41013, Spain
Contact Phone: •••-•••-•••• Email: •••••@•••••