Clinical trials: Kidney Stones, open to volunteers
Kidney Stone, Nephrolithiasis
Trial to Assess the Efficacy of EMPAgliflozin and Personalized Dietary Counseling for Kidney STONE Prevention
The aim of this randomized trial with a 2-by-2 factorial design is to test the efficacy of the SGLT2 inhibitor empagliflozin and personalized dietary counseling based on 24-hr urine collection results and dietary assessments for…
- Conditions
- Kidney Stone, Nephrolithiasis, Dietary Exposure
- Trial name
- EMPASTONE (NCT06653738)
- Testing
- Empagliflozin 10 MG, Personalized dietary counseling, Generic dietary counseling
- Where
- 21 sites in France, Germany and 2 more
- Volunteers
- 400 people
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Kidney Stones, Nephrolithiasis
DISS vs FANS in Suction-Assisted RIRS for Medium-Sized Renal Stones
Kidney stones are a common health problem and may recur frequently, which can affect quality of life and kidney function. Retrograde intrarenal surgery (RIRS) is a minimally invasive treatment used for renal stones, but treatment…
- Conditions
- Kidney Stones, Nephrolithiasis, Renal Calculi
- Trial name
- NCT07516535
- Testing
- Direct In-Scope Suction, Flexible and Navigable Suction Ureteric Access Sheath
- Where
- Egypt
- Volunteers
- 126 people
- Sponsor
- Ain Shams University
Kidney Stone, Infection
Novel Antimicrobial Solution to Prevent Infections
Ureteroscopy is the most common surgical treatment for kidney stones. Although rare, sepsis after ureteroscopy can be a life-threatening complication, occuring in <3% of patients.
- Conditions
- Kidney Stone, Infection, Infection Associated With Catheter, Sepsis
- Trial name
- NCT07881822
- Testing
- antimicrobial irrigation
- Volunteers
- 50 people
- Sponsor
- Ohio State University
Renal Stone
Perioperative Parameter and Treatment Outcomes of ECIRS in Asia
This is an observational, international, multicenter, cohort study, prospectively collecting clinical data registry on consecutive patients with urinary stone undergoing ECIRS.
- Trial name
- NCT05894668
- Testing
- ECIRS
- Where
- 3 sites in Hong Kong
- Volunteers
- 1,000 people
- Sponsor
- Chinese University of Hong Kong
Kidney Stones, Nephrolithiasis
FANS vs CVAC for Medium to Large Stones
Improvements in ureteroscopes have led to improved stone free rates. Two new devices (FANS - Flexible and Navigable Suction) and the CVAC ureteroscope have never been compared head to head.
- Trial name
- NCT07514351
- Testing
- ureteroscopy, CVAC
- Where
- United States
- Volunteers
- 159 people
- Sponsor
- Ohio State University
Nephrolithiasis, Kidney Stone
Observational Approach Versus Surgical Intervention for Stones
The aims of the Observational Approach versus Surgical Intervention for Asymptomatic Stone (OASIS) trial are: 1) to determine whether observation compared to upfront surgery results in less healthcare-related life disruption due…
- Trial name
- OASIS (NCT07718802)
- Testing
- Surgery, Observation
- Where
- 4 sites in United States
- Volunteers
- 1,658 people
- Sponsor
- Children's Hospital of Philadelphia
Kidney Stone, Kidney Calculi
O. Formigenes Colonization in Calcium Oxalate Kidney Stone Disease
The goal of this trial is to test if colonization with the gut bacteria Oxalobacter formigenes leads to a reduction in urinary oxalate excretion in patients with calcium oxalate kidney stone disease.
- Conditions
- Kidney Stone, Kidney Calculi, Urolithiasis, Urolithiasis, Calcium Oxalate
- Trial name
- NCT06330246
- Testing
- Low oxalate fixed diets pre-colonization, Moderately high oxalate fixed diets pre-colonization, Colonization with Oxalobacter formigenes
- Where
- 2 sites in United States
- Volunteers
- 40 people
- Sponsor
- University of Alabama at Birmingham
Kidney Stone, Kidney Calculi
Gut Oxalate Absorption in Calcium Oxalate Stone Disease
The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased absorption of dietary oxalate, which would lead to increased urinary excretion of oxalate.
- Conditions
- Kidney Stone, Kidney Calculi, Urolithiasis, Urolithiasis, Calcium Oxalate
- Trial name
- NCT06331546
- Testing
- Low-oxalate diet, High-oxalate diet, soluble oxalate gut absorption test
- Where
- 2 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Renal Stone
Supervised Endoscopic Tele-controlled Intelligent Lithotripsy
This is a phase I feasibility study to investigate the use of a novel intelligent robotic retrograde intrarenal surgery (RIRS) platform.
- Trial name
- SENTINEL-1 (NCT07411391)
- Testing
- RIRS using the TaloStone T1000 RIRS platform
- Where
- Hong Kong
- Volunteers
- 15 people
- Sponsor
- Chinese University of Hong Kong
Renal Stone Disease
Direct In-Scope Suction Versus Standard Flexible Ureterorenoscopy
This prospective study aims to compare the clinical, perioperative, and postoperative outcomes of flexible ureterorenoscopy using a direct in-scope suction system (DISS) with standard flexible ureterorenoscopy in patients…
- Trial name
- NCT07864194
- Testing
- Standard flexible ureterorenoscope, Flexible ureterorenoscope with direct in-scope suction
- Where
- Turkey (Türkiye)
- Volunteers
- 70 people
- Sponsor
- Hitit University
Stone, Kidney
FANS-Optimization of Irrigation and Suction Parameters in RIRS
Kidney stones are commonly treated with flexible ureteroscopy, a minimally invasive procedure in which a small scope is passed through the urinary tract to reach and treat stones in the kidney.
- Trial name
- NCT07840482
- Testing
- ClearPetra™ FANS - High-Flow Setting, ClearPetra™ FANS - Moderate-Flow Setting
- Volunteers
- 100 people
- Sponsor
- University of Kansas Medical Center
Urosepsis, Kidney Stone
Effect of Emergency Urinary Drainage on Subsequent PCNL Outcomes in Obstructive Urosepsis
Obstructive urolithiasis complicated by urosepsis is a life-threatening medical emergency requiring urgent urinary tract decompression.
- Trial name
- NCT07826325
- Testing
- Retrograde Ureteral Stenting followed by PCNL, Percutaneous Nephrostomy followed by PCNL
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Beni-Suef University
Kidney Stones
Pilot Study of Patient Navigation for Kidney Stone Patients After ED Visits
Patients who visit the emergency department for kidney stones are sometimes referred to urology for follow-up care but never complete that visit.
- Trial name
- NCT07322172
- Testing
- Patient Navigation
- Where
- United States
- Volunteers
- 31 people
- Sponsor
- University of California, San Francisco
Kidney Stones
SGLT2i in Kidney Stones
This study is looking at whether empagliflozin, a medication typically used for diabetes and heart conditions, may affect factors that contribute to kidney stone formation.
- Trial name
- NCT07055282
- Testing
- Empagliflozin (Jardiance®)
- Where
- United States
- Volunteers
- 32 people
- Sponsor
- University of Chicago
Kidney Stones, Nephrolithiasis
6.3Fr Versus 7.5Fr Mini-Flexible Ureteroscopy for Renal Stones (MINI-FURS)
This prospective, randomized, single-blinded, non-inferiority clinical trial will compare the clinical outcomes and cost-effectiveness of two mini-flexible ureteroscopes (6.3Fr and 7.5Fr) used during flexible ureteroscopy for the…
- Conditions
- Kidney Stones, Nephrolithiasis, Renal Calculi
- Trial name
- MINI-FURS (NCT07798336)
- Testing
- 6.3Fr Mini-Flexible Ureteroscope, 7.5Fr Mini-Flexible Ureteroscope
- Where
- Canada
- Volunteers
- 308 people
- Sponsor
- Sault Area Hospital
Renal Stone Disease
Intrarenal Pressure Monitoring During Pediatric Percutaneous Nephrolithotomy, and Its Impact on Post Operative Infectious Complications.
Monitoring of intrarenal pressure during pediatric percutaneous nephrolithotomy and its impact on post operative infectious complications.
- Trial name
- NCT07800546
- Testing
- Intrarenal pressure
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Assiut University
Kidney Stone, Urolithiasis, Calcium Oxalate
Heterozygous Individuals for AGXT and Kidney Stones
This study seeks to examine the effects of a heterozygous mutation of the AGXT gene in a stone forming population on endogenous oxalate production.
- Trial name
- NCT04430426
- Testing
- Controlled Diet
- Where
- United States
- Volunteers
- 4 people
- Sponsor
- University of Alabama at Birmingham
Kidney Stones, Kidney Calculi
Endogenous Oxalate Synthesis in Idiopathic Calcium Oxalate Kidney Stone Disease
The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased production of oxalate by the body, which would lead to increased urinary excretion of oxalate.
- Conditions
- Kidney Stones, Kidney Calculi, Urolithiasis, Urolithiasis, Calcium Oxalate
- Trial name
- NCT06989320
- Testing
- Low-oxalate diet and glycolate dosing, Oral glycolate dosing, Oral 13C- ascorbic acid dosing
- Where
- 2 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Kidney Stone, Retrograde Intrarenal Surgery
Ureteral Stenting After Retrograde Intrarenal Surgery for Renal Stones
Several studies evaluated the benefit of a short-term external ureteral catheter (UC) compared to double-J (DJ) ureteral stent after flexible ureteroscopy (URS); the results were controversial.
- Conditions
- Kidney Stone, Retrograde Intrarenal Surgery, Ureteral Stent
- Trial name
- NCT05738304
- Testing
- Retrograde intrarenal surgery with external ureteral catheter, Retrograde intrarenal surgery with double J internal ureteral stent
- Where
- Egypt
- Volunteers
- 250 people
- Sponsor
- Al-Azhar University
Renal Stone Disease, Ureteral Stricture
Long-term Safety of UAS-assisted vs Sheathless RIRS in Non-prestented Patients
This retrospective comparative cohort study will include adult patients who underwent primary RIRS for renal stones ≤20 mm at Al-Azhar University Hospitals between January 2020 and December 2025.
- Conditions
- Renal Stone Disease, Ureteral Stricture, Hydronephrosis, Urolithiasis
- Trial name
- NCT07767773
- Testing
- Ureteral access sheath-assisted RIRS, Sheathless RIRS
- Where
- Egypt
- Volunteers
- 1,200 people
- Sponsor
- Al-Azhar University