Clinical trials: Calculi, Renal
Pneumothorax, Intestinal Obstruction
The Impact of Artificial Intelligence-Assisted X-ray Interpretation on Radiologists' Diagnostic Performance
This study tests whether an artificial intelligence (AI) tool helps radiologists read X-rays more accurately. Radiologists read X-rays to find diseases such as pneumonia, bone fractures, and abdominal problems.
- Conditions
- Pneumothorax, Intestinal Obstruction, Spondylolysis, Renal Calculus
- Trial name
- NCT07870928
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- The Third Affiliated Hospital of Southern Medical University
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
Stone, Kidney, Ultrasound Therapy; Complications
Accuracy of Ultrasound for Detecting Residual Fragments During RIRS
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.
- Trial name
- NCT05535816
- Testing
- Ultrasound
- Where
- United States
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Urolithiasis
Assessment of Urinary Microplastic Concentration in Patients With Urolithiasis: A Prospective Case-Control Study
This prospective observational case-control study aims to evaluate the presence and burden of microplastic particles in urine samples from patients with kidney and ureteral stones and to compare these findings with healthy…
- Trial name
- Microplastics (NCT07841834)
- Testing
- No Intervention
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Konya City Hospital
Kidney Stones
Evaluation of Eye Gaze Sharing in the Operating Room
This project aims to develop an augmented reality (AR) tool to enhance skill acquisition for endoscopic kidney stone surgery. Of the 100,000 patients who undergo an endoscopic kidney stone treatment annually in the United States…
- Trial name
- NCT07173309
- Testing
- Augmented reality
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Obesity
Obesity and Endogenous Oxalate Synthesis
The goal of this study is to determine if obesity is associated with increased endogenous oxalate synthesis as assessed by urinary oxalate excretion, which is a known risk factor for calcium oxalate kidney stones.
- Trial name
- NCT03808090
- Testing
- Normal Individuals
- Where
- United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Kidney Stones, Urolithiasis, Hypocitraturia, Living Kidney Donation
Long-Term Risk of Kidney Stones in Living Kidney Donors
Using a population-based, matched, retrospective cohort approach, this study will evaluate the long-term risk of kidney stones among living kidney donors compared with matched healthy nondonors.
- Conditions
- Kidney Stones, Urolithiasis, Hypocitraturia, Living Kidney Donation, Living Kidney Donor
- Trial name
- NCT07611500
- Testing
- Living kidney donation
- Volunteers
- 50,000 people, healthy volunteers welcome
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Renal Calculi
Evaluation of Prevalence, Molecular and Genetic Backgrounds of Calcium-Based Stones Among Patients With Renal Calcular Disease in Mansoura Urology and Nephrology Center
Evaluation of Prevalence, Molecular and Genetic Backgrounds of Calcium-Based stones among Patients with Renal Calcular Disease in Mansoura Urology and Nephrology Center
- Trial name
- NCT05972408
- Testing
- percutaneous nephrlolithotomy, VDR gene, CASR gene
- Where
- Egypt
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Healthy
Renal Metabolism of Glycolate to Oxalate
This study will determine the contribution of glycolate metabolism to urinary oxalate excretion in healthy subjects, using carbon 13 isotope glycolate tracer technique and a low-oxalate controlled diet.
- Trial name
- NCT04437225
- Testing
- Low oxalate controlled Diet, Primed, continuous intravenous infusion of 13C2-Glycolate, Bolus intravenous infusion of 13C2-Glycolate
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- 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
Influence of Obesity on Oxalate Metabolism and Handling in Calcium Oxalate Stone Formers
The primary goals of this study are to determine the contribution of dietary oxalate absorption, renal oxalate handling, and endogenous oxalate synthesis to urinary oxalate excretion in normal Body Mass Index (BMI) and obese…
- Trial name
- NCT04333745
- Testing
- Controlled Diet, Carbon-13 Oxalate and Sucralose Ingestion
- Where
- 2 sites in United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Kidney Stone, Stone, Kidney
Kidney Stone Inflammation
This observational study aims to look at the connections between kidney stones, insulin resistance, and inflammation. The researchers hypothesize that people who form calcium kidney stones and have insulin resistance may have…
- Trial name
- NCT06436235
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Kidney Stones, Urine Specimen Collection
The Effect of Apple Cider Vinegar Supplementation on 24-hour Urine Chemistry in Adults
This is a single-center prospective cohort study to evaluate the effect of short-term daily apple cider vinegar (ACV) supplementation on urine chemistry.
- Trial name
- NCT07389226
- Testing
- Apple Cider Vinegar
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Kidney Stone
Dietary Oxalate and Innate Immunity in Kidney Stone Disease
This study will test whether oxalate stimulates urinary crystals and impacts the immune system in healthy subjects using two controlled diets (low and high oxalate).
- Trial name
- NCT04051346
- Testing
- Low Oxalate Diet, High Oxalate Diet
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Kidney Stone
Oxalate Formation From Ascorbic Acid
The purpose of this basic research study is to determine the contribution of endogenous ascorbic acid (AA) turnover to urinary oxalate excretion in both normal BMI and obese adult non-stone formers and calcium oxalate stone…
- Trial name
- NCT04603898
- Testing
- Low Oxalate Diet, Carbon-13 Ascorbic Acid Oral Load
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Kidney Stone
Dietary Oxalate and Immune Cell Function
The purpose of this study is to evaluate mitochondrial function in white blood cells and platelets from healthy individuals following dietary oxalate intake.
- Trial name
- NCT03877276
- Testing
- Breakfast, Spinach smoothie, Kale smoothie
- Where
- United States
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Kidney Stones
Eye Gaze Guidance Evaluation in Phantoms
This project aims to develop an augmented reality (AR) tool to enhance skill acquisition for endoscopic kidney stone surgery. Of the 100,000 patients who undergo an endoscopic kidney stone treatment annually in the United States…
- Trial name
- NCT07174479
- Testing
- Augmented reality
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Kidney Stones
Oxalate-Driven Host Responses in Kidney Stone Disease
This study is looking to understand the role of oxalate on kidney stone development and immunity. This study will enroll healthy participants and participants with calcium oxalate kidney stones (CaOx KS).
- Trial name
- NCT05417568
- Testing
- Low Oxalate Diet, High Oxalate Diet
- Where
- United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Kidney Stone, Benign Prostatic Hyperplasia
Utilization of a Web-Based Application to Improve Patient Health Literacy and Reduce Clinic Visit Times in Holmium Laser Enucleation of the Prostate (HoLEP) Procedures and Kidney Stone Surgery
The investigator and research team plan to investigate whether patients who receive access to WellPrept website will report greater confidence and understanding of their medical condition, have shorter clinic visit times, and…
- Trial name
- NCT07580391
- Testing
- WellPrept, Standard Care
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Nephrolithiasis, Kidney Stone
ClearPetra™ Vacuum-assisted Ureteral Access Sheath vs Traditional Approach
Ureteroscopy has been considered the best approach when treating renal stones smaller than 2 cm. This procedure is usually performed together with ureteral access sheaths, which helps protect the ureter mucosa and lowers…
- Trial name
- VA-UAS vs trad (NCT06547632)
- Testing
- ClearPetra Ureteral access sheath
- Where
- United States
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- University of Kansas Medical Center