New suction tools battle for best way to bust big kidney stones

NCT ID NCT07559214

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This trial will compare two techniques for removing kidney stones larger than 2 cm: a flexible suction sheath (FANS) and direct suction through the scope (DISS). About 100 adults will be randomly assigned to one method. The study will measure surgery time, how completely stones are removed, complications, and fluid use.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Flexible and Navigable Access Sheath (FANS) and Direct In-Scope Suction (DISS) procedures

What this could lead to

If one method proves faster and safer, it could become the preferred technique for removing large kidney stones, reducing surgery time and complications.

What could go wrong

This is a small, early-stage trial that has not yet started recruiting. The results may not apply to all patients, and both procedures carry standard surgical risks like infection or injury.

Disclaimer Read more

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.

Kidney Calculi nephrolithiasis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.