Ultrasonic Stone Propulsion for Kidney Stones

Recruiting in Palo Alto (17 mi)

+1 other location

Overseen byJonathan Harper, MD

Age: 18+

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Academic

Waitlist Available

Sponsor: University of Washington

No Placebo Group

Trial Summary

What is the purpose of this trial?This trial tests using sound waves to move kidney stones in patients who have leftover fragments after treatment. The goal is to help these stones pass naturally, reducing pain and the need for further treatments. Focused ultrasound has been developed and tested for relocating and expelling kidney stones.

Eligibility Criteria

This trial is for adults with visible kidney stones who are part of the UW medical system or Veterans Affairs Puget Sound healthcare system. It's suitable for those scheduled for lithotripsy or with an acute obstructing stone. Excluded are minors, people with non-echogenic stones, those not following up, on significant blood thinners, with mobility issues, or in vulnerable groups.

Inclusion Criteria

Individuals suspected of having at least one stone remaining from the lithotripsy procedure

I had a lithotripsy procedure at least 4 weeks ago.

I am being monitored or treated for kidney stones without surgery.

+1 more

Exclusion Criteria

I am under 18 years old.

I am on blood thinners or have a clotting disorder.

Individuals belonging to a vulnerable group (pregnant, mentally disabled, physically disabled, prisoner, etc.)

+5 more

Participant Groups

The study tests 'Propulse 1', a focused ultrasound technology designed to move kidney stones within the body. The aim is to either help pass stone fragments more easily or relieve pain by repositioning symptomatic stones.

2Treatment groups

Experimental Treatment

Active Control

Group I: Treatment with Ultrasonic PropulsionExperimental Treatment1 Intervention

Subjects receive treatment with the Propulse 1 device. Intervention consists of the non-invasive application of ultrasound to move stones within the kidney and ureter.

Group II: ControlActive Control1 Intervention

Subject follow same protocol as treatment group but do not receive the ultrasonic propulsion intervention.