| Not Yet Recruiting | Pilot Study of Patient Navigation for Kidney Stone Patients After ED Visits NCT07322172 | University of California, San Francisco | N/A |
| Not Yet Recruiting | FANS vs CVAC for Medium to Large Stones NCT07514351 | Ohio State University | N/A |
| Not Yet Recruiting | DISS vs FANS in Suction-Assisted RIRS for Medium-Sized Renal Stones NCT07516535 | Ain Shams University | N/A |
| Not Yet Recruiting | Effect of Complete Suction-Induced Collapse of the Renal Collecting System at the End of RIRS on Early Postope NCT07535281 | Kangdong Sacred Heart Hospital | N/A |
| Not Yet Recruiting | Pain Control During ESWL Using Non-Opioid Analgesics NCT07512297 | University of Gaziantep | Phase 4 |
| Not Yet Recruiting | Stone Clearance With Aspiration vs Other Technologies: a Real-world Evidence Study NCT07155005 | Calyxo, Inc. | — |
| Recruiting | Effect of Negative Pressure Suction on Fluid Absorption and Infection in Flexible Ureteroscopy NCT07492147 | Lanzhou University Second Hospital | — |
| Not Yet Recruiting | The Effect of Apple Cider Vinegar Supplementation on 24-hour Urine Chemistry in Adults NCT07389226 | University of Chicago | N/A |
| Not Yet Recruiting | Dual Approach External Oblique Fascial Plane Block Versus Erector Spinae Plane Block for Post Operative Analge NCT07359391 | Zagazig University | N/A |
| Active Not Recruiting | FANS-Assisted Mini-PCNL for Complex Renal Stones NCT07332286 | The First Affiliated Hospital of Guangzhou Medical University | N/A |
| Recruiting | PMCF Investigation of MODULITH® SLX-F2 With StorM-Track in Patients With Kidney Stones NCT07272720 | Storz Medical AG | N/A |
| Not Yet Recruiting | Comparing Efficiency and Stone-Free Rates Mini PCNL vs Flex URS NCT07072598 | Northwestern University | N/A |
| Not Yet Recruiting | Surgical Outcomes and Costs in Using the Shenzhen HugeMed 6.3 French Flexible Ureteroscope NCT07296835 | University of Kansas Medical Center | N/A |
| Recruiting | SGLT2i in Kidney Stones NCT07055282 | University of Chicago | EARLY_Phase 1 |
| Not Yet Recruiting | The LARC Robot Simplifies Renal Access In Percutaneous Nephrolithotomy NCT07211555 | AdventHealth | N/A |
| Recruiting | CaOx Stone Prevention NCT07225764 | Icahn School of Medicine at Mount Sinai | Phase 4 |
| Not Yet Recruiting | Flexible Ureteroscopy Versus Extracorporeal Shock Wave Lithotripsy NCT07193940 | Assiut University | N/A |
| Not Yet Recruiting | Trial of Ureteroscopy vs Steerable Continuous Flow Aspiration Technology NCT07101809 | Calyxo, Inc. | N/A |
| Recruiting | Flexible Ureteroscopy With a Flexible and Navigable Suction Ureteral Access Sheath Versus Mini-Percutaneous Ne NCT07159035 | The First Affiliated Hospital of Guangzhou Medical University | N/A |
| Recruiting | Eye Gaze Guidance Evaluation in Phantoms NCT07174479 | Vanderbilt University Medical Center | N/A |
| Recruiting | Endogenous Oxalate Synthesis in Idiopathic Calcium Oxalate Kidney Stone Disease NCT06989320 | University of Alabama at Birmingham | N/A |
| Recruiting | ILY Robotic System vs Manual Flexible Ureteroscopy for Kidney Stone Treatment NCT06996587 | Albert El Hajj | N/A |
| Enrolling By Invitation | VISOR Versus PCNL for Treatment of 2-4cm Renal Stones NCT07159503 | Second Affiliated Hospital, School of Medicine, Zhejiang University | N/A |
| Completed | A Phase 2a Study of LLX-424 in Patients With a History of Kidney Stones NCT06932146 | Lilac Therapeutics, Inc. | Phase 2 |
| Recruiting | Steerable vs Conventional FANS for <2cm Lower Pole Stone Treatment: SCULPT Trial NCT06898216 | The First Affiliated Hospital of Guangzhou Medical University | N/A |
| Recruiting | Evaluation of Eye Gaze Sharing in the Operating Room NCT07173309 | Vanderbilt University Medical Center | N/A |
| Completed | Occlusion Balloon vs. 5FR Ureteral Catheter NCT06798753 | Icahn School of Medicine at Mount Sinai | N/A |
| Completed | Forced Diuresis After Flexible Ureteroscopy for Medium-Sized Renal Stones NCT07336485 | Ain Shams University | N/A |
| Completed | AR Projections for Eye-gaze Evaluation in Phantoms NCT07161024 | Vanderbilt University Medical Center | N/A |
| Recruiting | Fecal Microbiota Transplantation in Kidney Stone Patients NCT05516472 | Joshua Stern | EARLY_Phase 1 |
| Active Not Recruiting | Comparison of Vacuum-Assisted and Conventional Ureteral Access Sheath in Retrograde Intrarenal Surgery NCT06684756 | Namik Kemal University | N/A |
| Completed | Tubeless vs Tube PCNL in Pediatric Nephrolithiasis: A Randomized Controlled Trial. NCT07183930 | Lady Reading Hospital, Pakistan | N/A |
| Recruiting | Thulium Fiber Laser (TFL) vs Thulio Pulsed Thulium:YAG (p-Tm:YAG) NCT06721975 | University of California, San Diego | N/A |
| Recruiting | Effect of Laughter Yoga on Surgical Fear and Anxiety in Patients Applied Before Ureteroscopy NCT06758284 | Kocaeli University | N/A |
| Active Not Recruiting | Feasibility of Radiation-Free Percutaneus Nephrolithotomy for Kidney Stones NCT06922006 | University of California, San Diego | — |
| Active Not Recruiting | A Retrospective, Multi-center Real-world Study of Steerable Ureteroscopic Renal Evacuation (SURE) Procedure Wi NCT07225933 | Calyxo, Inc. | — |
| Completed | Flexible and Navigable Suction Ureteral Access Sheath (FANS) vs Conventional Access Sheaths in RIRS: A Prospec NCT07377461 | Barzilai Medical Center | N/A |
| Completed | Evaluation of Stone Composition in Surgical Kidney Stone Patients in Vietnam NCT07038954 | Binh Dan Hospital | — |
| Recruiting | Oxalate-Driven Host Responses in Kidney Stone Disease NCT05417568 | University of Alabama at Birmingham | N/A |
| Completed | Donors With Nephrolithiasis at the Time of Transplant Evaluation (DONATE). Long Term Follow-up. NCT05519150 | Indiana University | — |
| Completed | Empiric Versus Selective Prevention Strategies for Kidney Stone Disease NCT05365477 | Vanderbilt University Medical Center | Phase 4 |
| Completed | THE EFFECTS OF MIRABEGRON AND TAMSULOSIN FOR PATIENTS WITH URETERAL STENTS NCT06124066 | Hasanuddin University | Phase 4 |
| Completed | Retrograde Intrarenal Surgery (RIRS) With High-Power Laser and Flexible, Navigable Suction Access Sheath (FANS NCT07349992 | Necmettin Erbakan University | N/A |
| Unknown | Ho:YAG Laser Versus Thulium Laser for the Management of 2-4cm Kidney Stones During SMP NCT05190536 | The First Affiliated Hospital of Guangzhou Medical University | N/A |
| Unknown | 7.5F Versus 9.2F Flexible Ureteroscopy for the Treatment of 1-2cm Renal Calculi on Postoperative Infection NCT05231577 | The First Affiliated Hospital of Guangzhou Medical University | N/A |
| Unknown | Paravertebral Versus Caudal Block in Pediatric PCNL NCT05012215 | Assiut University | N/A |
| Completed | Resistance Characteristics and Development of Diagnostic Model for Postoperative UTI in Patients With Kidney S NCT06946667 | Xingxin Jiang | — |
| Suspended | Evaluation of Different Treatment Modalities for Lower Pole and Renal Pelvis Stones NCT02522676 | Selcuk University | N/A |
| Unknown | Comparison of Ultra-mini PCNL and Micro PCNL NCT02522689 | Selcuk University | N/A |
| Unknown | Evaluation of the NV-VPAC1 Prostate Cancer (PCa) Urine Diagnostic Test in Subjects With Biopsy-confirmed Prost NCT03630926 | Intermountain Health Care, Inc. | — |
| Completed | The Role of Preoperative Ureteral Diameter Measurements in Predicting Difficult Access During Retrograde Intra NCT06746779 | Hisar Intercontinental Hospital | — |
| Completed | A Pilot Study of Oxalate Absorption in Secondary Hyperoxaluria NCT03095885 | Allena Pharmaceuticals | N/A |
| Completed | Point of Care 3D Ultrasound for Various Applications: A Pilot Study NCT02831556 | Duke University | — |
| Completed | Influence of Hypocaloric Diet on Urinary Lithogenic Factors of Obese Patients With Kidney Stones NCT02690662 | University of Sao Paulo General Hospital | N/A |
| Completed | Durability of Flexible Ureteroscopes and Causes of Infection During Flexible Ureterorenoscopy NCT03087812 | Clinical Research Office of the Endourological Society | — |
| Completed | Evaluate the Effect of ALLN-177 in Reducing Urinary Oxalate in Patients With Secondary Hyperoxaluria and Kidne NCT02547805 | Allena Pharmaceuticals | Phase 2 |
| Completed | Evaluate the Effect of ALLN-177 in Reducing Urinary Oxalate in Patients With Hyperoxaluria and Kidney Stones NCT02503345 | Allena Pharmaceuticals | Phase 2 |
| Unknown | Struvite Stones Antibiotic Study NCT02375295 | University of British Columbia | Phase 4 |
| Active Not Recruiting | Ultrasound Imaging of Kidney Stones and Lithotripsy NCT02214836 | University of Washington | N/A |
| Unknown | Comparison of RIRS Versus PCNL Methods, According to Postoperative Pain and Analgesic Demand in 2 to 4 cm Rena NCT02430168 | Diskapi Teaching and Research Hospital | Phase 4 |
| Completed | Trial of Randomized Antibiotic Administration in Percutaneous Nephrolithotomy NCT02579161 | Northwell Health | Phase 3 |
| Unknown | Comparison of Multiple-, Single- and Zero-dose of Ciprofloxacin Prophylaxis in Retrograde Intrarenal Surgery NCT02304822 | Guohua Zeng | N/A |
| Completed | Validation of the Wisconsin Stone-QOL NCT02188108 | University of Wisconsin, Madison | N/A |
| Terminated | Clinical Evaluation of BackStop in Patients Undergoing Ureteroscopic Lithotripsy NCT02122341 | University of Southern California | N/A |
| Completed | Night Time Use of Thiazide Diuretics for Improved Reduction in Stone Risk in Stone Formers With Elevated Urine NCT02711670 | VA New York Harbor Healthcare System | N/A |
| Unknown | Safety and Effectiveness of the Ultrasonic Propulsion of Kidney Stones NCT02028559 | University of Washington | N/A |
| Completed | "Dusting" Versus "Basketing" - Treatment Of Intrarenal Stones NCT01619735 | Mayo Clinic | — |
| Completed | Feasibility and Impact of a Decision Rule for Imaging of Emergency Department Patients With Suspected Kidney S NCT01869647 | Yale University | N/A |
| Completed | Assessment of Fluoroscopy Times With Surgeon Versus Technologist Control NCT02224287 | Boston Children's Hospital | N/A |
| Withdrawn | The Impact of Ureteral Stents on Peristalsis NCT01739738 | University of British Columbia | — |
| Completed | Use of the PercSys MicroStent Device to Alleviate Ureteral Stone Symptoms and Hydronephrosis NCT01637519 | University of British Columbia | — |
| Withdrawn | Differential Effect of Silodosin Versus Tamsulosin on Stone Clearance After Extra-corporeal Shock Wave Lithotr NCT01560091 | Albert Einstein Healthcare Network | Phase 3 |
| Unknown | The Role Of FGF23, Klotho, And Sclerostin In Kidney Stone Formers NCT01526304 | University of Zurich | — |
| Unknown | Extracorporal Shockwave Lithotripsy Versus Retrograde Intrarenal Surgery for the Treatment of Kidney Stones NCT01514032 | University of Zurich | N/A |
| Completed | Laser Versus Ultrasonic Lithotripsy in Percutaneous Nephrolithotomy for Staghorn Stones NCT01922414 | Mansoura University | N/A |
| Completed | Narrow Versus Wide Focal Zones for Shock Wave Lithotripsy of Renal Calculi NCT01226875 | Unity Health Toronto | N/A |
| Completed | Study of Silodosin to Facilitate Passage of Urinary Stones NCT01144949 | Watson Pharmaceuticals | Phase 2 |
| Unknown | Extracorporeal Shock Wave Lithotriptor Indicated for Fragmenting Urinary Stones in the Kidney NCT00959153 | Advance Shockwave Technology GmbH | Phase 3 |
| Completed | Febuxostat Versus Allopurinol or Placebo in Patients With Hyperuricosuria and Calcium Oxalate Stones NCT01077284 | Takeda | Phase 2 |
| Enrolling By Invitation | Pilot Study to Evaluate the Contribution of Gene Variants to Idiopathic Urolithiasis NCT01127854 | Mayo Clinic | — |
| Completed | Effect of Diet Orange Soda on Urinary Lithogenicity NCT01330940 | VA New York Harbor Healthcare System | N/A |
| Completed | Effect of Sodium Thiosulfate on Urine Chemistries of Hypercalciuric Stone Formers NCT01088555 | VA New York Harbor Healthcare System | N/A |
| Completed | Study to Look for Artifact on Computed Tomography (CT) Representing Kidney Stones NCT01187745 | Ottawa Hospital Research Institute | — |
| Terminated | Can a Spot Urine Replace or Improve 24 Hour Urine Collections in Kidney Stone Patients NCT01420354 | University of British Columbia | — |
| Completed | Trial Comparing Three Different Devices for Kidney Stone Removal During Percutaneous Surgery NCT00952315 | Indiana Kidney Stone Institute | N/A |
| Completed | Pharmacokinetic, Safety and Efficacy Study of OMS201 in Subjects Undergoing Retrograde Ureteroscopic Removal o NCT00857090 | Omeros Corporation | Phase 1 / Phase 2 |
| Terminated | Use of Antiretropulsion Device in Laser Lithotripsy NCT00859170 | Percutaneous Systems, Inc. | N/A |
| Completed | Visceral Pain From the Upper Urinary Tract - a Trial on the Effect of Morphine and Oxycodone in Patients Under NCT00784472 | Katja venborg Pedersen | Phase 3 |
| Completed | Intravenous Ketorolac for Postoperative Pain in Percutaneous Nephrolithotomy NCT00765128 | Mayo Clinic | Phase 4 |
| Completed | Percutaneous Nephrolithotomy Versus Extracorporeal Shock Wave Lithotripsy NCT00873054 | CAMC Health System | — |
| Unknown | Stone Centre Urine and Serum Bank NCT00759343 | University of British Columbia | — |
| Terminated | Study to Determine if There Are Specific Clinical Factors to Determine Stent Encrustation NCT00581178 | University of California, Irvine | — |
| Completed | Clinical Evaluation of BackStop in Patients Undergoing Intraureteric Stone Lithotripsy NCT00893282 | Pluromed, Inc. | N/A |
| Unknown | Alfuzosin for Medical Expulsion Therapy of Ureteral Stones NCT00713739 | United States Naval Medical Center, San Diego | Phase 3 |
| Withdrawn | A Randomized Study of Whether Alfuzosin(Xatral) Helps in the Passage of Kidney Stones NCT00583258 | Unity Health Toronto | N/A |
| Unknown | Is There is a Role of Prophylactic Therapy With Tamsulosin Before Extracorporeal Shock Wave Lithotripsy to Avo NCT00489723 | HaEmek Medical Center, Israel | — |
| Completed | The Efficacy of Tamsulosin in the Treatment of Ureteral Stones in Emergency Department Patients NCT00448123 | Robert Swor | N/A |
| Withdrawn | A Trial of Pyridoxamine to Lower Urine Oxalate in Subjects With Stone Disease or Hyperoxaluria NCT00490113 | University of Kansas Medical Center | Phase 2 |
| Completed | Trial Comparing Dual Probe Ultrasonic Lithotripsy to a Single Probe Ultrasonic Lithotripsy NCT00351351 | Indiana Kidney Stone Institute | N/A |
| Terminated | Ureteral Stent Length and Patient Symptoms NCT00288457 | Emory University | — |
| Withdrawn | International Registry for Primary Hyperoxaluria NCT00875823 | Mayo Clinic | — |
| Completed | Database and Registry for Renal Diverticulum NCT00169715 | Indiana Kidney Stone Institute | N/A |