An interventional study of ELS (Enhanced Lithotripsy System) in Kidney Calculi; Ureteral Calculi, sponsored by Avvio Medical. Recruiting at 20 sites in United States. Open to participants aged 21 Years and older. Per ClinicalTrials.gov, last updated 2026-06-16.
Sponsored by Avvio Medical · Not applicable, Interventional, and Treatment
The purpose of this study is to evaluate the safety and performance of the ELS to treat urinary stones. The ELS is intended to break urinary stones into small fragments that can pass during or after the procedure with less or no discomfort. Eligible patients are male or females, age 21 or older, with a single urinary stone in the ureter. Participants will undergo the ELS procedure and then be evaluated 30 days later for the presence or absence of urinary stone fragments on a CT scan. Subjects who still have stone present at Day 30 will be evaluated again at Day 60. Other outcome measures will be changes in pain, quality of life, and return to normal daily activities/work.
509 studies on the registry are indexed under Kidney Calculi; 146 are open to participants now.
This study's planned enrollment of 101 is above the median of 86 across 391 interventional studies indexed under Kidney Calculi.
Browse Kidney Calculi studies →Avvio Medical is the lead sponsor of 5 studies on the registry; 1 is open to participants now.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
All Subjects who qualify to participate in the ELS Trial will receive the experimental ELS procedure.
Device: ELS (Enhanced Lithotripsy System)
ELS (Enhanced Lithotripsy System) utilizes low pressure ultrasound to actuate proprietary microbubbles administered into the urine to pit and fragment urinary stones.
Primary Outcome Measure
CT assessment of the target stone demonstrating either (i) stone free status (zero fragments) or (ii) the presence of only stone fragments small enough to pass spontaneously (\<=4 mm) at 30 Days post procedure.
Time frame: From ELS treatment to 30 Days afterward.
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