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Kidney Stones clinical trials at University of California Health

15 in progress, 9 open to eligible people

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  • Ureteral Stent Placement After Ureteroscopy for Renal Stones: A Randomized Controlled Trial

    open to eligible people ages 18 years and up

    The rationale for this study is to determine if there is a difference in complications among patients undergoing ureteroscopy for renal stones who receive a stent compared to not receiving a stent postoperatively.

    at UC Davis UCLA UCSD

  • Accuracy of Ultrasound for Detecting Residual Fragments During RIRS

    open to eligible people ages 18 years and up

    The purpose of this study is to assess the accuracy of ultrasound and traditional fluoroscopy to find the residual fragments before retrograde intrarenal surgery is complete. This would ultimately limit the need for radiation exposure and improve the quality of clinical care given to patients and healthcare teams.

    at UCSF

  • Antibiotic Prophylaxis With Routine Ureteral Stent Removal

    open to all eligible people

    This study will be a single-institutional randomized, single-blinded prospectively controlled clinical trial of a single dose of Ciprofloxicin 500mg antibiotic tablet as prophylaxis at the time of office flexible cystoscopy with ureteral stent removal. The control group will be no prophylaxis oral antibiotics.

    at UCSD

  • Break Wave(TM) Extracorporeal Lithotripter First-in-Human Study

    open to eligible people ages 18 years and up

    This is a prospective, open-label, multi-center, single-arm (non-randomized) study to assess the safety and effectiveness of breaking stones in the upper urinary tract using the SonoMotion Break Wave technology. Up to 30 subjects will be included. The procedure will be performed in a hospital surgical environment as an outpatient (without being admitted) or in a non-surgical environment such as a clinic or office procedure room. The procedure will be performed under varying levels of anesthesia ranging from no anesthesia to general anesthesia (fully asleep). Stones will be limited to ≤ 10 mm for lower pole stones and ≤ 20 mm everywhere else. Safety will be measured by the self-reported occurrences of adverse events, unplanned emergency department or clinic visits, and the need for further intervention. Fragmentation will be measured by self-reported stone passage and a comparison of computed tomography (CT) images before and after the procedure.

    at UCSD UCSF

  • Endourology Disease Group Excellence (EDGE) Consortium: Antibiotics (Abx) for Percutaneous Nephrolithotomy (PCNL) Part 2

    open to all eligible people

    This study will be a multi-institutional randomized clinical trial of a short course of pre-operative antibiotic prophylaxis in addition to perioperative antibiotics prior to undergoing percutaneous nephrolithotomy. The select patient population will be those patients deemed to be at a moderately increased risk of postoperative infectious complications. These higher risk patients are those with indwelling urinary drainage tubes and those with a positive preoperative urine culture.

    at UCSD

  • MIP Versus PCNL for Kidney Stone Disease

    open to eligible people ages 18 years and up

    The decision to use standard percutaneous nephrolithotomy (PCNL) versus mini-percutaneous nephrolithotomy (MIP) has been a subject of much debate in the urological community. The investigators propose a randomized controlled trial to compare the operative outcomes and complications of mini-percutaneous nephrolithotomy (mini-PCNL) versus standard PCNL for renal stones. The results of this study will help guide the decision making regarding these two procedures in the US population and provide further insight into the utility and safety of these procedures. A cost analysis will be performed, and it is hypothesized that the reusable components of the Storz MIP set will result in lower costs of the mini-PCNL procedure compared to standard PCNL.

    at UCSD

  • SOUND Pivotal Trial - (Sonomotion stOne comminUtion resoNance ultrasounD)

    open to eligible people ages 18 years and up

    The goal of this clinical trial is to test the Break Wave™ system in patients with upper urinary tract stones. The main question it aims to answer is whether the device is safe and effective in fragmenting (breaking) stones. Participants will a) undergo the Break Wave™ procedure, b) have a telehealth visit at 2 weeks, and c) return for an imaging study at approximately 10 weeks post-procedure.

    at UCSD UCSF

  • Struvite Stones Antibiotic Study

    open to eligible people ages 19 years and up

    The aim of this research is to determine an effective antibiotic regimen following definitive surgical therapy of kidney stones caused by bacterial infection (struvite stones).

    at UCSD

  • Asymptomatic Renal Calculi in Recurrent Urinary Tract Infections

    open to eligible people ages 18 years and up

    This study will assess patients who have recurrent urinary tract infections and kidney stones which are not blocking the kidney or causing other problems. Currently, we don't know if taking out these stones will improve recurrent urinary tract infections or not. Patients will make a decision with their surgeon about removing or monitoring their stone(s). Whether or not their infections continue with surgery or monitoring will be noted, and this information may help to inform future treatment decisions. The purpose of this study is to assess if treatment of these asymptomatic stones affects the rate of recurrent urinary tract infections.

    at UCSD

  • Acoustic Enhancer Research on Laser Lithotripsy (AEROLITH)

    Sorry, in progress, not accepting new patients

    A pivotal study to evaluate the safety and effectiveness of Applaud Acoustic Enhancer when used in conjunction with conventional ureteroscopic laser lithotripsy (URS-LL) in the treatment of subjects with urinary stones.

    at UC Irvine UCSD UCSF

  • Ambulatory Versus Inpatient Percutaneous Nephrolithotomy

    Sorry, in progress, not accepting new patients

    The goal of the study is to determine if ambulatory tubeless PCNL is safe and effective compared to inpatient PCNL with a nephrostomy tube.

    at UCSF

  • Continuous Erector Spinae Plane Blocks to Treat Pain Following Percutaneous Nephrolithotomy

    Sorry, accepting new patients by invitation only

    This is a randomized, triple-masked, placebo-controlled parallel-arm human subjects clinical trial investigating the addition of a continuous erector spinae plane nerve block to a single-injection erector spinae plane block to provide postoperative analgesia following percutaneous nephrolithotomy. Participants will all receive a single-injection nerve block and perineural catheter insertion. Following surgery, participants will be randomly allocated to receive either perineural local anesthetic or normal saline until the second day following surgery.

    at UCSD

  • Efficiency and Safety of Holmium Laser With Moses Technology Versus SuperPulsed Laser System With Thulium Fiber Laser on Renal Stones

    Sorry, accepting new patients by invitation only

    This is a prospective randomized controlled trial designed to assess the efficacy and safety of Lumenis® Pulse™ P120H holmium laser system with the Moses technology (holmium laser with pulse modulation) versus the Soltive™ SuperPulsed Laser System with the thulium fiber laser (thulium fiber laser), in dusting of renal stones during ureteroscopy with laser lithotripsy. 310 participants will be enrolled across 5 research sites.

    at UCLA

  • Preoperative Prophylactic Antibiotic Duration in Moderate to High Risk Ureteroscopy

    Sorry, not yet accepting patients

    The goal of this non-inferiority randomized controlled trial: is to test the hypothesis that the that there is no additional benefit from a longer course (7 days) versus a shorter course (2 days) of pre-operative antibiotics in patients with moderate to high risk of infection undergoing ureteroscopy. The main questions it aims to answer are: 1. Determine the safety and efficacy of a short course (2 days) as compared to a long course (7 days) 2. Identify secondary predictors of post-operative infectious complications

    at UCSF

  • Video Home Visits for Dietary Counselling

    Sorry, not yet accepting patients

    This pilot study aims to develop a protocol for home video informed dietary counseling with the goal of reducing overall sodium consumption among kidney stone formers. To accomplish this the investigators will: 1)Assess which data available on video visits are most informative to convey patient sodium consumption, and 2) Administer virtual home visits with informed dietary counseling in our intervention arm and compare this to standard dietary counseling looking specifically at the outcome of 24-hour urine sodium excretion results over time. This study will benefit dramatically from the rapid growth of telehealth medical visits as a consequence of the SARS-CoV-2 pandemic, with the ultimate goal to improve and adapt patient dietary counseling for the prevention of kidney stone disease in the new and evolving era of telehealth.

    at UCSF

Our lead scientists for Kidney Stones research studies include .

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