{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Nephrolithiasis%2C+Calcium+Oxalate", "query": { "condition": "Nephrolithiasis, Calcium Oxalate" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 231, "total_pages": 24, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Nephrolithiasis%2C+Calcium+Oxalate&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-06-26T20:01:51.401Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT05869890", "title": "Ureteroscopic Laser Modality on Total Lasing Time and Total Energy in Patients With Large, Dense Renal Calculi", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Renal Calculi" ], "interventions": [ { "name": "MOSES laser system", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "Albany Medical College", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "80 Years", "sex": "ALL", "summary": "18 Years to 80 Years" }, "enrollment_count": 2, "start_date": "2023-02-22", "completion_date": "2024-08-27", "has_results": false, "last_update_posted_date": "2025-02-21", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 1, "location_summary": "Albany, New York", "locations": [ { "city": "Albany", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT05869890" }, { "nct_id": "NCT00907946", "title": "Comparing Previously Placed Nephrostomy Tract (NT) Versus Single Stage Percutaneous Nephrolithotomy (PCNL)", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Urolithiasis" ], "interventions": [ { "name": "NT 1 day before PCNL", "type": "PROCEDURE" } ], "intervention_types": [ "PROCEDURE" ], "sponsor": "Washington University School of Medicine", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "90 Years", "sex": "ALL", "summary": "18 Years to 90 Years" }, "enrollment_count": 8, "start_date": "2009-12", "completion_date": "2010-10", "has_results": false, "last_update_posted_date": "2019-01-11", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 1, "location_summary": "St Louis, Missouri", "locations": [ { "city": "St Louis", "state": "Missouri" } ], "official_url": "https://clinicaltrials.gov/study/NCT00907946" }, { "nct_id": "NCT04051346", "title": "Dietary Oxalate and Innate Immunity in Kidney Stone Disease", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Kidney Stone" ], "interventions": [ { "name": "Low Oxalate Diet", "type": "DIETARY_SUPPLEMENT" }, { "name": "High Oxalate Diet", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "University of Alabama at Birmingham", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "60 Years", "sex": "ALL", "summary": "18 Years to 60 Years" }, "enrollment_count": 14, "start_date": "2021-03-05", "completion_date": "2025-05-01", "has_results": true, "last_update_posted_date": "2026-06-26", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 1, "location_summary": "Birmingham, Alabama", "locations": [ { "city": "Birmingham", "state": "Alabama" } ], "official_url": "https://clinicaltrials.gov/study/NCT04051346" }, { "nct_id": "NCT04160520", "title": "Pramipexole and Morphine for Renal Colic", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "Renal Colic" ], "interventions": [ { "name": "Pramipexole", "type": "DRUG" }, { "name": "Morphine", "type": "DRUG" }, { "name": "Placebo oral tablet", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "East Carolina University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "19 Years", "maximum_age": "66 Years", "sex": "ALL", "summary": "19 Years to 66 Years" }, "enrollment_count": 19, "start_date": "2019-10-28", "completion_date": "2023-01-24", "has_results": false, "last_update_posted_date": "2023-03-08", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 1, "location_summary": "Greenville, North Carolina", "locations": [ { "city": "Greenville", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT04160520" }, { "nct_id": "NCT05353478", "title": "Reducing Opioid Prescription After Kidney Stone Removal Surgery", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Kidney Stone" ], "interventions": [], "intervention_types": [], "sponsor": "Mayo Clinic", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 80, "start_date": "2022-06-06", "completion_date": "2026-08", "has_results": false, "last_update_posted_date": "2025-08-08", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 1, "location_summary": "Rochester, Minnesota", "locations": [ { "city": "Rochester", "state": "Minnesota" } ], "official_url": "https://clinicaltrials.gov/study/NCT05353478" }, { "nct_id": "NCT03811171", "title": "Break Wave(TM) Extracorporeal Lithotripter First-in-Human Study", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Renal Calculi", "Urinary Calculi" ], "interventions": [ { "name": "Break Wave extracorporeal lithotripsy", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "SonoMotion", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 70, "start_date": "2019-08-20", "completion_date": "2027-03-30", "has_results": false, "last_update_posted_date": "2025-07-29", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 3, "location_summary": "San Diego, California • San Francisco, California • Seattle, Washington", "locations": [ { "city": "San Diego", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Seattle", "state": "Washington" } ], "official_url": "https://clinicaltrials.gov/study/NCT03811171" }, { "nct_id": "NCT02831556", "title": "Point of Care 3D Ultrasound for Various Applications: A Pilot Study", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Appendicitis", "Evidence of Cholecystectomy", "Gallstones", "Pregnancy, Ectopic", "Aortic Aneurysm", "Kidney Stones", "Intrauterine Pregnancy", "Diverticulitis", "Abdominal Injuries", "Tumors", "Pancreatitis", "Digestive System Diseases", "Gastrointestinal Diseases", "Intraabdominal Infections", "Intestinal Diseases", "Pregnancy", "Vascular Disease", "Uterine Fibroids", "Ovarian Cysts", "Uterine Abnominalies", "Bladder Abnominalies", "Testicular Abnominalies", "Polyps" ], "interventions": [], "intervention_types": [], "sponsor": "Duke University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": null, "maximum_age": null, "sex": "ALL", "summary": "Not listed" }, "enrollment_count": 174, "start_date": "2016-07", "completion_date": "2022-08-31", "has_results": false, "last_update_posted_date": "2024-05-21", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 1, "location_summary": "Durham, North Carolina", "locations": [ { "city": "Durham", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT02831556" }, { "nct_id": "NCT01077284", "title": "Febuxostat Versus Allopurinol or Placebo in Patients With Hyperuricosuria and Calcium Oxalate Stones", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Hyperuricosuria", "Kidney Stones" ], "interventions": [ { "name": "Febuxostat", "type": "DRUG" }, { "name": "Allopurinol", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Takeda", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 99, "start_date": "2010-02", "completion_date": "2011-11", "has_results": true, "last_update_posted_date": "2013-02-15", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 28, "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Tucson, Arizona + 25 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Anchorage", "state": "Alaska" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Costa Mesa", "state": "California" }, { "city": "Orange", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01077284" }, { "nct_id": "NCT05026710", "title": "Better Lithotripsy and Ureteroscopy Evaluation of Stenting (BLUES)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Renal Stone", "Ureteral Stone" ], "interventions": [ { "name": "Silicone (Coloplast Imajin Hydro) ureteral stent", "type": "DEVICE" }, { "name": "Non-silicone (Polyurethane/Percuflex) ureteral stent (any manufacturer)", "type": "DEVICE" } ], "intervention_types": [ "DEVICE" ], "sponsor": "University of Michigan", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 224, "start_date": "2021-12-02", "completion_date": "2024-08-21", "has_results": true, "last_update_posted_date": "2025-10-28", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 10, "location_summary": "Ann Arbor, Michigan • Brighton, Michigan • Chelsea, Michigan + 7 more", "locations": [ { "city": "Ann Arbor", "state": "Michigan" }, { "city": "Brighton", "state": "Michigan" }, { "city": "Chelsea", "state": "Michigan" }, { "city": "Clinton Township", "state": "Michigan" }, { "city": "Detroit", "state": "Michigan" } ], "official_url": "https://clinicaltrials.gov/study/NCT05026710" }, { "nct_id": "NCT04669860", "title": "Evaluating the Bacterial and Fungal Microbiome in Patients With Calcium Oxalate Urolithiasis and Renal Cell Carcinoma", "overall_status": "SUSPENDED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Calcium Oxalate Urolithiasis", "Renal Cell Carcinoma" ], "interventions": [], "intervention_types": [], "sponsor": "University of Miami", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 90, "start_date": "2021-02-24", "completion_date": "2028-01-01", "has_results": false, "last_update_posted_date": "2025-09-08", "last_synced_at": "2026-06-26T20:01:51.401Z", "location_count": 1, "location_summary": "Miami, Florida", "locations": [ { "city": "Miami", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT04669860" } ] }