| Not Yet Recruiting | New Laser and Suction Sheath for Kidney Stone Treatment NCT06667466 | Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine | — |
| Not Yet Recruiting | Impact of Humid-Heat on Gut-Tryptophan-Stone Pathway NCT07043374 | Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine | — |
| Not Yet Recruiting | Role of Medication in Making Urine Less Acidic as Part of Kidney Stone Prevention NCT06819111 | University of Texas Southwestern Medical Center | Phase 1 |
| Not Yet Recruiting | Metaphylaxis of Infected Kidney Stones After Percutaneous Nephrolithotripsy NCT07393711 | West Kazakhstan Marat Ospanov Medical University | N/A |
| Not Yet Recruiting | The LARC Robot Simplifies Renal Access In Percutaneous Nephrolithotomy NCT07211555 | AdventHealth | N/A |
| Enrolling By Invitation | Ureteroscopy Combined With Negative Pressure Sheath Treatment of Kidney Stones NCT06938113 | Peking University First Hospital | — |
| Completed | Safety and Efficacy of Traditional Versus Flexible and Navigable Suction Sheath in Retrograde Intra-Renal Ston NCT07286071 | Ain Shams University | N/A |
| Recruiting | Endogenous Oxalate Synthesis in Idiopathic Calcium Oxalate Kidney Stone Disease NCT06989320 | University of Alabama at Birmingham | 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 |
| Recruiting | Comparing Super Pulse Fiber Thulium Laser and Holmium Laser for Ureteral Stone Fragmentation During Ureterosco NCT06667557 | Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine | — |
| Completed | Comparison Between Supine Mini-PCNL and Flexible Ureteroscopy (FURS) for Dense Lower Calyceal Stones (1-2 cm) NCT07345234 | Ain Shams University | N/A |
| Completed | Sheathless, Traditional, and Suction Access Sheath RIRS for Renal Stones ≤2 cm NCT07289230 | Ain Shams University | N/A |
| Recruiting | Outcomes of Using FANS With FURS in TTT of Lower Calyceal Stones. NCT07238803 | Zagazig University | N/A |
| Enrolling By Invitation | Bryophyllum Pinnatum Tea as a Novel Treatment for Recurrent Kidney Stone Formers NCT06987084 | Indra Gupta | 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 |
| Recruiting | Gut Oxalate Absorption in Calcium Oxalate Stone Disease NCT06331546 | University of Alabama at Birmingham | N/A |
| Recruiting | O. Formigenes Colonization in Calcium Oxalate Kidney Stone Disease NCT06330246 | University of Alabama at Birmingham | N/A |
| Completed | FlexStone Enabled Kidney Stone Retrieval NCT06320860 | EndoTheia | N/A |
| Completed | Stone Access and Removal (STAR) Study NCT06330701 | Auris Health, Inc. | N/A |
| Unknown | Apply Machine Learning to the Interpretation of Urinary Crystal Morphology. NCT06178575 | Yi-Shiou Tseng | — |
| Active Not Recruiting | SOUND Pivotal Trial - (Sonomotion stOne comminUtion resoNance ultrasounD) NCT05701098 | SonoMotion | N/A |
| Unknown | Is it Really Necessary to Insert a Nephrostomy Tube or Double J Stent in Percutaneous Nephrolithotomy? NCT06062849 | Bursa City Hospital | N/A |
| Completed | Initial Clinical Experience With the MONARCH Platform, Urology for the Treatment of Kidney Stones NCT05835323 | Auris Health, Inc. | N/A |
| Unknown | Percutaneous Nephrolithotomy Without a Ureteral Catheter NCT05598671 | The First Affiliated Hospital of University of South China | N/A |
| Unknown | Total Tubeless Percutaneous Nephrolithotomy Without a Ureteral Catheter NCT05578807 | The First Affiliated Hospital of University of South China | N/A |
| Completed | Evaluating the Vitamin K2 Status of Calcium-based Stone Formers NCT05081960 | London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's | — |
| Completed | Standard vs Mini-PCNL for the Treatment of Stone Disease NCT04069013 | The Cleveland Clinic | N/A |
| Unknown | Safety and Efficacy of Fluoroscopy-free Technique During Retrograde Intrarenal Surgery for Renal Stones NCT05269108 | Al-Azhar University | N/A |
| Unknown | Ambulatory Versus Inpatient Percutaneous Nephrolithotomy NCT04690010 | University of California, San Francisco | N/A |
| Unknown | Suction Mini-PCNL Versus Standard PCNL for the Management of 2-4cm Kidney Stones NCT05088213 | The First Affiliated Hospital of Guangzhou Medical University | N/A |
| Completed | The Effect of Education Given to Patients on Pre- and Post-operative Anxiety and Preparation for Discharge NCT05511545 | Ataturk University | N/A |
| Withdrawn | The Impact of Nutritional Service in the Stone Clinic on the Patient Urine Collection Results NCT04545528 | Carmel Medical Center | — |
| Recruiting | Methocarbamol vs Oxybutynin for Management of Pain and Discomfort S/P Ureteroscopy Procedure NCT05100017 | Northwestern University | N/A |
| Completed | Tranexamic Acid to Improve Same-day Discharge Rates After Holmium Laser Enucleation of the Prostate (HoLEP) NCT05082142 | Northwestern University | Phase 4 |
| Completed | Is it Necessary for Patients With a Positive Urine Culture to Achieve a Negative Result After Antimicrobial Tr NCT06210425 | Junhao Zheng | — |
| Completed | Do Dynamic Urinary Leukocyte and Nitrite Changes Improve Risk Prediction for Infectious Complications Followin NCT07238673 | The First Affiliated Hospital of Guangzhou Medical University | — |
| Unknown | Fluoroscopic Guided vs US-guided Percutaneous Nephrolithotripsy for the Treatment of Stone Disease NCT04606758 | Astana Medical University | N/A |
| Unknown | Holmium Vs Trilogy Kidney Stones GUY's 1-2 NCT04559321 | Hospital Regional de Alta Especialidad del Bajio | Phase 3 |
| Completed | Failed Insertion of Ureteral Access Sheath During Flexible Ureterorenoscopy NCT05911945 | Haseki Training and Research Hospital | N/A |
| Completed | Allopurinol Effect on MDA,NO,KIM-1 Urine Levels, RI and Renal Elastography in Kidney Stone Patients Post ESWL NCT05414669 | Sanglah General Hospital | Phase 4 |
| Completed | Fluoroscopy Activation Interval in SWL NCT06689683 | Lütfi Kırdar City Hospital | N/A |
| Completed | Effectiveness of Drainage by PCN vs. JJ in Patients With Symptoms of Obstructive Kidney Disease Caused by Urol NCT04594161 | Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) | N/A |
| Unknown | Patient Compliance for Metabolic Evaluation and Medical Management in Calcium Stone Patients NCT04169165 | EULIS Colloborative Research Working Group | — |
| Completed | Ureteral Stent Placement After Ureteroscopy for Renal Stones: A Randomized Controlled Trial NCT03855787 | Vanderbilt University Medical Center | N/A |
| Completed | Evaluation of Infection in Obstructing Urolithiasis NCT04332861 | University of Texas Southwestern Medical Center | — |
| Completed | Efficacy and Safety of Renalof® in the Removal of Calculi Smaller Than 10 mm Located in the Reno-Ureteral Trac NCT04695951 | Catalysis SL | Phase 2 |
| Terminated | MOSES Lithotripsy Technology Applied to Stone Fragmentation During Ureteroscopy NCT03995758 | Indiana University | N/A |
| Completed | A Dietary Source of Potassium Citrate to Resolve Hypocitraturia and Aciduria in Patients With Kidney Stones NCT03984409 | Indiana University | N/A |
| Completed | Comparison of Lithotripsy Urolithiasis Machines NCT04069338 | The Cleveland Clinic | N/A |
| Completed | ShockPulse-SE vs. Trilogy Trial: Comparing the Performance of Two Intracorporeal Lithotripters for Removal of NCT03959683 | Indiana University | N/A |
| Unknown | Bilateral Synchronous Simultaneous Stone Surgery NCT03599297 | Marmara University | N/A |
| Withdrawn | Pre-induction Analgesia: Multimodel Regimen vs Aceteminophen for Post Ureteroscopy Pain NCT03549611 | Kevin J Flynn MD | Phase 4 |
| Completed | Study of Ketorolac Versus Opioid for Pain After Endoscopy NCT03888144 | The Cleveland Clinic | Phase 4 |
| Completed | Paravertebral Block Versus Epidural Anesthesia for Percutaneous Nephrolithotomy NCT03018899 | Huazhong University of Science and Technology | N/A |
| Completed | Quality of Life in Kidney Stone Patients Undergoing Surgery NCT02625051 | University of California, San Francisco | N/A |
| Terminated | Understanding the Urine Electrolyte Profile of the Individual Renal Unit NCT02837393 | Johns Hopkins University | — |
| Completed | Are the Stone Density and Location Useful Parameters for Small Kidney Stones? NCT03503539 | Abant Izzet Baysal University | N/A |
| Completed | Mini-PCNL Versus Standard-PCNL For The Management of 20-40 mm Size Kidney Stones NCT02635048 | The First Affiliated Hospital of Guangzhou Medical University | N/A |
| Completed | Influence of Anesthesia Methods on Surgical Outcomes and Renal Function NCT03957109 | Seoul National University Hospital | N/A |
| Unknown | Aqueduct Irrigation System Clinical Protocol: Medical Device Investigational Plan NCT02496442 | Flowmed | N/A |
| Unknown | Assessment of Flexible Ureteroscopy Residual Fragments NCT02434068 | University of Sao Paulo General Hospital | — |
| Completed | Comparing Treatment of Urolithiasis Between Disposable and Reusable Ureteroscope NCT03040466 | University of California, San Francisco | N/A |
| Unknown | Naftopidil 75mg for Improving Clearance of Urinary Stones NCT02011737 | Samsung Medical Center | Phase 4 |
| Unknown | Indwelling Stent Discoloration Project NCT02007980 | University of British Columbia | — |
| Unknown | Quality of Life in Patients With Double Loop Ureteral Stent (JJ Silicone Hydrogel Study) NCT02489656 | Coloplast A/S | Phase 4 |
| Completed | "Dusting" Versus "Basketing" - Treatment Of Intrarenal Stones NCT01619735 | Mayo Clinic | — |
| Completed | Effect of Quercetin Supplements on Healthy Males: a Four-Week Randomized Cross-Over Trial NCT01881919 | University of Leeds | EARLY_Phase 1 |
| Completed | Study Evaluating the Helical Ureteral Stent NCT01739725 | University of British Columbia | N/A |
| Unknown | Calcium Supplements Strategy for Kidney Stones Prevention in Crohn's Patients NCT01735461 | University of British Columbia | N/A |
| Completed | Are There Protective Effects of Antioxidants, Calcium Channel Blocker and Angiotensin Receptor Blocker Against NCT01675362 | Mansoura University | Phase 4 |
| Completed | Impact of Renal Anatomy on Shock Wave Lithotripsy Outcomes for Lower Pole Kidney Stones NCT01589484 | University of Sao Paulo | N/A |
| Completed | Use of Lapis Judaicus to Dissolve Kidney Stones NCT01443702 | Shiraz University of Medical Sciences | Phase 1 / Phase 2 |
| Unknown | Keller Prehospital Ultrasound Study NCT01074112 | Keller Fire Rescue | — |
| Completed | Remifentanil in Extracorporeal Shock Wave Lithotripsy NCT01452880 | University of Roma La Sapienza | Phase 4 |
| Completed | Alfuzosin Hydrochloride to Promote Passage of Distal Ureteral Calculi NCT00177086 | University of Minnesota | Phase 3 |
| Withdrawn | Effects of Potassium Citrate in Urine of Children With Elevated Calcium in Urine and Kidney Stones NCT00120731 | Children's Mercy Hospital Kansas City | N/A |
| Completed | Efficacy of Potassium Sodium Hydrogen Citrate Therapy on Renal Stone Recurrence and/or Residual Fragments Afte NCT01329042 | Ouiheng International Healthcare Co., Ltd | Phase 4 |
| Completed | FloSeal Tubeless Exit Versus Cope Loop Nephrostomy Versus Fascial Stitch Following Percutaneous Nephrolithotri NCT00360477 | University of California, Irvine | N/A |
| Completed | Phase III Randomized, Double-Blind Study of Potassium Phosphate Vs Potassium Citrate for Absorptive Hypercalci NCT00004284 | National Center for Research Resources (NCRR) | Phase 3 |