Sound waves could push kidney stones out without surgery

NCT ID NCT02028559

Ongoing Symptom relief Sponsor: University of Washington Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a device that uses focused ultrasound to gently push kidney stones, helping them pass or relieving pain. Researchers are enrolling 172 people with kidney stones, including those waiting for treatment or recently treated. The goal is to see if the ultrasound can move stones and reduce symptoms.

What this could mean

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

Active substance: focused ultrasound (ultrasonic propulsion device)
What this could lead to: If successful, this could offer a non-invasive way to help kidney stones pass more easily, reducing pain and the need for surgery.
What could go wrong: This is an early-stage study focused on feasibility, not a proven treatment. The ultrasound may not move all stones, and some participants might still need other procedures.

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Conditions

The condition(s) this trial relates to.

Calculi Kidney Calculi nephrolithiasis urolithiasis

As listed by the trial registrant

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

KIDNEY STONES NEPHROLITHIASIS UROLITHIASIS

Contacts and locations

Locations

University of Washington Department of Urology

Seattle, Washington, 98195, United States
VA Puget Sound Health Care System

Seattle, Washington, 98108, United States

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