Clinical trial Recruiting at 12 sites Interventional Ages 21 and up

Evaluation of a new system for breaking down urinary stones

Official title: Evaluation of Enhanced Lithotripsy System (ELS) in the Treatment of Urinary Stones, A Pivotal Trial

Run by Avvio Medical · NCT06942949 · Data updated 2026-11-12

This study is testing a new system to see if it can safely break down urinary stones into smaller pieces, making it easier for people to pass them and feel less pain.

Quick facts

Study typeInterventional
Ages21 Years and up
SexAll
Enrollment101 (estimated)
SponsorAvvio Medical
Industry-sponsored
Locations20 sites (Phoenix, Arizona and 19 other locations)
StatusRecruiting
StartedMay 1, 2025
Main results expectedAugust 2026
Study endsSeptember 2026
Registry record updatedJune 16, 2026
Trial IDNCT06942949 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 21 and older with a single ureteral stone between 5 mm and 10 mm in size.

Probably not a fit

Patients with non-calcium based stones, untreated urinary tract infections, or those with certain anatomical or medical conditions may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the safety and effectiveness of the Enhanced Lithotripsy System (ELS) for treating urinary stones. The ELS aims to fragment stones into smaller pieces that can be passed more easily, potentially reducing discomfort during the procedure. Eligible participants, aged 21 and older with a single ureteral stone, will undergo the ELS procedure and be assessed 30 days later using a CT scan to check for stone fragments. Additional outcomes include measuring changes in pain levels, quality of life, and the ability to return to normal activities.

Why it matters

Potential benefit: If successful, this treatment could provide a less painful and more effective option for patients with urinary stones.

How similar studies have gone: Other studies have shown promise with similar lithotripsy techniques, suggesting potential for success with this novel approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or Female aged \>=21 Years
* Provides written informed consent
* One urinary stone within the ureter, size \>=5 mm and \<=10 mm present on CT
* Stone is indicated for Shock Wavve Lithotrips Per AUA 2026 guidelines
* Stone to be treated has a maximum density of \<= 1200 HU

Exclusion Criteria:

* Anatomic presentations that would preclude obtaining an acoustic window for the ultrasound treatment
* Non-calcium based stones (e.g., uric acid stones)
* Untreated UTI
* Presence of abnormal skin conditions in the area to be treated
* Coagulation abnormality
* Inability to lay still for 30 minutes
* Pregnant
* Abnormal Kidney Function
* Any genitourinary history or procedure that has altered anatomy (e.g. urinary tract reconstruction)

Where it's running

  • Arizona State Urological Research Institute
    Phoenix, Arizona, United States
    Recruiting
  • San Diego Clinical Trials
    La Mesa, California, United States
    Recruiting
  • Golden State Urology
    Sacramento, California, United States
    Recruiting
  • University of Miami Hospital
    Miami, Florida, United States
    Recruiting
  • Georgia Urology
    Roswell, Georgia, United States
    Recruiting
  • Comprehensive Urologic Care
    Lake Barrington, Illinois, United States
    Recruiting
Show 14 more locations
  • Wichita Urology Group
    Wichita, Kansas, United States
    Recruiting
  • Minnesota Urology
    Woodbury, Minnesota, United States
    Recruiting
  • University of Rochester Medical Center
    Rochester, New York, United States
    Recruiting
  • SUNY - Upstate Medical University
    Syracuse, New York, United States
    Recruiting
  • Urology San Antonio
    San Antonio, Texas, United States
    Recruiting
  • Urology of Virginia
    Virginia Beach, Virginia, United States
    Recruiting
  • Arkansas Urology Research Center
    Little Rock, Arkansas, United States
    Enrolling by invitation
  • Michael G. Oefelein Clinical Trials
    Bakersfield, California, United States
    Active not recruiting
  • Nebraska Urology
    Lincoln, Nebraska, United States
    Enrolling by invitation
  • Urology Nevada
    Reno, Nevada, United States
    Enrolling by invitation
  • Duke
    Durham, North Carolina, United States
    Active not recruiting
  • Urology Specialists Clinic
    Sioux City, South Dakota, United States
    Enrolling by invitation
  • University of Virginia
    Charlottesville, Virginia, United States
    Withdrawn
  • University of Virginia Community Health
    Culpeper, Virginia, United States
    Active not recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Audio consent with human voice or AI-voice added to written consent for ureteroscopy

    This study tests if listening to an audio version of the consent form, read by a real urologist or by an AI-cloned voice, helps adults in Turkey understand their ureteroscopy or RIRS consent better than the written form alone.

    Recruiting at 3 sites Aydin Adnan Menderes University · Aydin, Aydın and 2 other locations · NCT07859436

  • Suction vs Conventional Ureteral Access Sheaths in Kidney Stone Surgery

    This study tests whether using a suction ureteral access sheath during RIRS helps adults clear stones more often and potentially reduces operative time and infections compared with a conventional sheath.

    Recruiting Antalya Health Sciences University · Antalya, Muratpasa · NCT07866209

  • Nephrostomy Tract Infiltration to Ease Pain After Percutaneous Nephrolithotomy

    This trial tests whether injecting local anesthetic into the nephrostomy tract after PCNL helps reduce postoperative pain for adults undergoing the procedure.

    Recruiting Hitit University · Çorum, Çorum · NCT07721571

  • Gentamicin Irrigation and Suction Ureteral Access in Kidney Stone Surgery

    This trial tests whether using gentamicin-containing irrigation fluid and a suction-enabled ureteral access sheath during retrograde intrarenal surgery (RIRS) can lower fever, SIRS, and sepsis after kidney stone treatment.

    Recruiting Hitit University · Çorum, Çorum and 1 other locations · NCT07655050

  • ComfiJ vs. standard double-J stent after ureteroscopy or RIRS

    This trial tests whether a ComfiJ ureteral stent causes fewer urinary symptoms than a conventional double-J stent in adults needing short-term stenting after ureteroscopy or RIRS for stones.

    Recruiting at 3 sites Beni-Suef University · Banī Suwayf, Beni Suweif Governorate and 2 other locations · NCT07627828

  • Aminophylline in the Bladder to Help Place a Ureteral Stent Quickly

    This study tests whether putting aminophylline into the bladder before stenting helps adults with acute kidney blockage due to stones see if a ureteral stent can be placed more easily and quickly.

    Recruiting Phase 2 Beni-Suef University · Banī Suwayf, Beni Suweif Governorate · NCT07617948

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.