Detection and Evaluation of Renal Injury in Burst Wave Lithotripsy Using Ultrasound and Magnetic Resonance Imaging.
Philip C May, Wayne Kreider, Adam D Maxwell...
https://pubmed.ncbi.nlm.nih.gov/28521550Actively Recruiting
Led by University of Washington · Updated on 2025-12-09
140
Participants Needed
3
Research Sites
21 weeks
Total Duration
U
University of Washington
Lead Sponsor
I
Indiana University
Collaborating Sponsor
Researchers are evaluating the clinical feasibility of using ultrasound technologies to help break and reposition urinary stones without anesthesia. This study is prospective, open-label, and conducted across multiple centers. It includes people with kidney stones and aims to assess the safety and effectiveness of these ultrasound methods in facilitating stone passage. The study involves several phases: an initial feasibility phase with 20 subjects, a randomized control trial phase with 100 subjects divided equally into treatment and control groups, and a feasibility phase focusing on individuals with spinal cord injury. The investigational treatment uses two ultrasound technologies called Burst Wave Lithotripsy and Ultrasonic Propulsion, which noninvasively fragment and move stones within the kidney and ureter. Treatments last up to 30 minutes per session, with possible repeat sessions after 21 days or on the opposite kidney side after imaging. Participants will undergo ultrasound treatments and follow-up imaging to monitor stone fragmentation and movement. Safety is monitored by tracking healthcare visits and adverse events up to 14 months after the procedure. Effectiveness is measured by stone size reduction, residual stone volume, need for further stone management, and patient-reported quality of life. The study includes ongoing monitoring and assessments over several months, ensuring comprehensive evaluation of the investigational technologies.
CONDITIONS
Ultrasound to Facilitate Stone Passage
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Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Single session with possible additional sessions after 21 days
Participants receive the investigational ultrasound technologies to fragment and reposition urinary stones without anesthesia. Up to 3 distinct stone targets may be treated in a single session, with a maximum total exposure of 30 minutes. Participants may return for additional sessions after at least 21 days and after adverse events have resolved.
1 treatment session with possible follow-up treatment visits after at least 21 days
Duration - Up to 14 months
Participants are monitored for safety and effectiveness outcomes including stone fragmentation, need for further stone management, and quality of life assessments up to 14 months post-procedure.
Visits scheduled up to 14 months post-procedure as needed for monitoring
Total: 3 locations
1
Indiana University Health - North Hospital
Carmel, Indiana, United States, 46032
Withdrawn
2
VA Puget Sound Health Care System
Seattle, Washington, United States, 98108
Actively Recruiting
3
University of Washington
Seattle, Washington, United States, 98195
Actively Recruiting
M
Michael Bailey, PhD
B
Barbrina Dunmire, MS
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
SINGLE_GROUP
Primary Purpose
TREATMENT
Number of Arms
4
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