Clinical trials: Calculi
Mental Health
Homeless Youth Study - Stepping Stone Project
Homelessness is associated with a multitude of negative consequences including an increased risk for mental health problems. Once homeless, these individuals face significant barriers to mental health care and are therefore less…
- Trial name
- NCT03620682
- Testing
- Coaching sessions, Mobile applications
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Rush University Medical Center
Kidney Stone
Can Shear Wave Elastography Predict the Success of ESWL: a Prospective Study
Can Shear Wave Elastography predict the success of Shock-Wave Lithotripsy used in renal stones treatment ? A prospective study
- Trial name
- NCT05995652
- Testing
- elastography
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Abdelrahim Elsherbiny
Acute Kidney Injury, Renal Calculi
Evaluation of Renal Damage After PCNL and ESWL Using Novel RNA Based Biomarkers
The study evaluate the damage effect of ESWL and PCNL on kidney tissue by measuring non-coding lnc-RNA profile in urine before and after ESWL and PCNL procedures
- Conditions
- Acute Kidney Injury, Renal Calculi, Percutaneous Nephrolithotomy, Extracorporeal Shockwave Lithotripsy
- Trial name
- NCT05077007
- Testing
- Percutaneous nephrolithotomy, Extracorporeal Shock Wave Lithotripsy
- Where
- Egypt
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Kidney Stone
Thulium Fiber Laser Prospective Trial
This is a multi-center, prospective clinical trial to assess the effect of TFL for the lithotripsy of kidney stones.
- Trial name
- TFL (NCT05814133)
- Testing
- Thulium Fiber Laser
- Where
- Canada
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Centre hospitalier de l'Université de Montréal (CHUM)
Gingivitis, Plaque
Self-selection Study of the Toothwave Toothbrush
This study objective is to test the Silk'n Toothwave self-selection, by potential end users. Additionally, this study will evaluate if contraindicated subjects will self-exclude from use of the device and the ability to…
- Conditions
- Gingivitis, Plaque, Calculus, Tooth Discoloration
- Trial name
- NCT04023097
- Testing
- Toothwave toothbrush
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Home Skinovations Ltd.
Biliary Disease, Gallstone; Cholecystitis, Acute
Multicentric Point of Care UltraSound by Surgeons Trial
Acute gallbladder pathology and acute diverticulitis are common conditions met in emergency departments and comprise the bulk of admissions throughout general surgical calls.
- Conditions
- Biliary Disease, Gallstone; Cholecystitis, Acute, Diverticulitis, Colonic, Abscess Pelvic
- Trial name
- POCUSS (NCT02682368)
- Testing
- Point of Care Ultrasound by Surgeons (POCUSS), Radiology report, Surgery-Intra-operative findings
- Where
- 5 sites in Ireland, Italy and 2 more
- Volunteers
- 183 people, healthy volunteers welcome
- Sponsor
- Connolly Hospital Blanchardstown
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
Ureteroscopy
The Role of Ureteral Stenting Following Uncomplicated Ureteroscopy for Ureteral and Renal Stones: A Randomized, Controlled Trial
It is well established that uncomplicated distal ureteroscopy can be safely performed without leaving a ureteral stent. However, many urologists continue to leave ureteral stents following uncomplicated ureteroscopy, regardless…
- Trial name
- NCT03130907
- Testing
- Placement of ureteral stent
- Where
- United States
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- San Antonio Uniformed Services Health Education Consortium
Urinary Infections, Urolithiasis
The Effect of Preoperative Culture Timing on Postoperative Outcomes of Retrograde Intrarenal Surgery
The rate of complications (unexpected situations) after retrograde intrarenal surgery is reported to be 9-25%, and the majority of these are postoperative infections.
- Trial name
- NCT06723327
- Where
- Turkey (Türkiye)
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Namik Kemal University
Calcium Oxalate Urolithiasis, Renal Cell Carcinoma
Evaluating the Bacterial and Fungal Microbiome in Patients With Calcium Oxalate Urolithiasis and Renal Cell Carcinoma
The purpose of the study is to identify bacterial and fungal microbiome associated with calcium oxalate (CO) urolithiasis and renal cell carcinoma (RCC).
- Trial name
- NCT04669860
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Miami
Kidney Calculi
Effects of Potassium Citrate in Urine of Children With Elevated Calcium in Urine and Kidney Stones
High amounts of calcium in the urine (hypercalciuria) can cause development of kidney stones in children. Treatment for these children includes plenty of fluids, a low-salt diet and medications such as potassium citrate.
- Trial name
- NCT00120731
- Testing
- Potassium Citrate, Acetazolamide, Diet low in oxalate and purines
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Children's Mercy Hospital Kansas City
Stone, Kidney
Evaluation of Retrograde Intra Renal Surgery in the T-tilted Position
To evaluate the effect of the T-tilted position on the stone-free rate compared to the standard lithotomy position in retrograde intrarenal surgeries.
- Trial name
- RIRS (NCT06860113)
- Testing
- T-tilting of the patient during surgery, standard lithotomy position
- Where
- Egypt
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
HIV Infections
Stepping Stones Program for Preventing HIV Infection in Residents of Rural South African Communities
This study will evaluate the effectiveness of Stepping Stones, an HIV-prevention education program, versus a brief HIV-focused intervention, in improving sexual health and preventing HIV infection in young residents of rural…
- Trial name
- NCT00332878
- Testing
- Stepping Stones, stepping Stones short
- Where
- South Africa
- Volunteers
- 2,801 people, healthy volunteers welcome
- Sponsor
- Medical Research Council, South Africa
Prosthesis Durability
Accuracy of 3-dimensional Printed Implant Cast Versus Conventional Stone Cast for Edentulous Mandibular Arch
This study will be conducted to compare between accuracy of 3D printed implant cast produced from digital impression and conventional stone cast produced from conventional splinted open tray impression for edentulous mandibular…
- Trial name
- NCT06050187
- Testing
- implant casts fabrication
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Kidney Stones, Nephrolithiasis
Effect of Diet Orange Soda on Urinary Lithogenicity
Beverages containing citrate may be useful in increasing urine citrate content and urine pH. Such changes in urine chemistry could help prevent kidney stones. Diet orange soda has more citrate than other similar beverages.
- Conditions
- Kidney Stones, Nephrolithiasis, Urolithiasis
- Trial name
- NCT01330940
- Testing
- Orange soda
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- VA New York Harbor Healthcare System
Cerebral Hypoperfusion, Cerebral Occlusion
Evaluation of Cerebral Blood Flow and Cerebral Oxygenation With Transcranial Doppler and NIRS in Laparoscopic Cholecystectomy Cases
The goal of this clinical trial is to test intracranial blood flow and cerebral oxygenisation changes in patients who have pneumoperitoneum in laparoscopic cholecystectomy procedure.
- Conditions
- Cerebral Hypoperfusion, Cerebral Occlusion, Cholecystitis; Gallstone, Cholecystitis/Cholelithiasis
- Trial name
- NIRS L/C (NCT06036498)
- Testing
- Near Infrared Spectrophotometry Device, Transcranial Doppler Ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Uludag University
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
Hyperuricemia, Gout
Effect of Quercetin Supplements on Healthy Males: a Four-Week Randomized Cross-Over Trial
The purpose of this study was to test the effect of chronic consumption of Quercetin 500 mg tablets on blood uric acid and other biomarkers in adult males.
- Conditions
- Hyperuricemia, Gout, Kidney Calculi, Diabetes
- Trial name
- NCT01881919
- Testing
- Treatment, Control
- Where
- United Kingdom
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Leeds
Dental Calculus, Tooth Discoloration
Staining and Calculus Formation After 0.12% Chlorhexidine Rinses
The presence of plaque on tooth surfaces as a predictor of chlorhexidine side effects has not been evaluated especially because most studies utilized a previous disruption of biofilms in all dental surfaces before the beginning…
- Trial name
- NCT00818376
- Testing
- Dental prophylaxis
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Lutheran University of Brazil
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