{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Ureter+Calculi",
    "query": {
      "condition": "Ureter Calculi"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 11,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Ureter+Calculi&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T04:22:16.704Z",
  "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": "NCT03608098",
      "title": "Long Pulse Versus Short Pulse Laser Dusting for Renal Stones",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone",
        "Ureter Stone",
        "Renal Stone"
      ],
      "interventions": [
        {
          "name": "Short Pulse Duration",
          "type": "DEVICE"
        },
        {
          "name": "Long Pulse Duration",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-05",
      "completion_date": "2023-12",
      "has_results": false,
      "last_update_posted_date": "2019-06-03",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03608098"
    },
    {
      "nct_id": "NCT02577146",
      "title": "The Predictive Value of Ureteral Jet Assessment With Ultrasound in Patients Presenting With Acute Renal Colic",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ureteral Calculi"
      ],
      "interventions": [
        {
          "name": "renal and bladder ultrasound with ureteral jet assessment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 74,
      "start_date": "2015-10",
      "completion_date": "2019-12",
      "has_results": true,
      "last_update_posted_date": "2019-12-10",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02577146"
    },
    {
      "nct_id": "NCT03040466",
      "title": "Comparing Treatment of Urolithiasis Between Disposable and Reusable Ureteroscope",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Calculi",
        "Ureter Calculi"
      ],
      "interventions": [
        {
          "name": "reusable fiberoptic ureteroscope",
          "type": "DEVICE"
        },
        {
          "name": "disposable digital ureteroscope",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 180,
      "start_date": "2014-08",
      "completion_date": "2016-09",
      "has_results": true,
      "last_update_posted_date": "2020-10-01",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03040466"
    },
    {
      "nct_id": "NCT02214836",
      "title": "Ultrasound Imaging of Kidney Stones and Lithotripsy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stones",
        "Nephrolithiasis",
        "Urolithiasis",
        "Ureter Stones"
      ],
      "interventions": [
        {
          "name": "Verasonics Data Acquisition System (VDAS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 219,
      "start_date": "2015-01-01",
      "completion_date": "2026-07-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02214836"
    },
    {
      "nct_id": "NCT00304317",
      "title": "Celecoxib (Celebrex) in the Management of Acute Renal Colic",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Ureteral Calculi"
      ],
      "interventions": [
        {
          "name": "celecoxib",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2006-03",
      "completion_date": "2008-08",
      "has_results": false,
      "last_update_posted_date": "2017-01-24",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00304317"
    },
    {
      "nct_id": "NCT00859170",
      "title": "Use of Antiretropulsion Device in Laser Lithotripsy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stones"
      ],
      "interventions": [
        {
          "name": "Accordion device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Percutaneous Systems, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 100,
      "start_date": "2009-02",
      "completion_date": "2009-08",
      "has_results": false,
      "last_update_posted_date": "2010-01-08",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 3,
      "location_summary": "Downey, California • New York, New York • Arlington, Texas",
      "locations": [
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Arlington",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00859170"
    },
    {
      "nct_id": "NCT03567421",
      "title": "Ureteral Stenting After Ureteroscopy for Stone Treatment, A Global Perspective on Indications and Outcomes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Stone;Renal",
        "Stone, Kidney",
        "Stone Ureter"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Société Internationale d'Urologie",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 2348,
      "start_date": "2018-06-07",
      "completion_date": "2019-08-31",
      "has_results": false,
      "last_update_posted_date": "2021-04-13",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03567421"
    },
    {
      "nct_id": "NCT03526458",
      "title": "Clinical Trial Evaluating the Efficiency of Holmium Laser Settings on Urinary Stones",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stone Ureter",
        "Stone;Renal",
        "Surgery"
      ],
      "interventions": [
        {
          "name": "Holmium:YAG laser",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2019-07-30",
      "completion_date": "2021-03-24",
      "has_results": true,
      "last_update_posted_date": "2021-09-20",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03526458"
    },
    {
      "nct_id": "NCT05866081",
      "title": "Stent Omission After Ureteroscopy and Lithotripsy in the Michigan Urological Surgery Improvement Collaborative",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stone, Kidney",
        "Stone Ureter"
      ],
      "interventions": [
        {
          "name": "Standard of care stent placement",
          "type": "DEVICE"
        },
        {
          "name": "No stent placement",
          "type": "OTHER"
        },
        {
          "name": "Surveys",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "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": 792,
      "start_date": "2023-06-01",
      "completion_date": "2026-05-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-15",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 16,
      "location_summary": "Tucson, Arizona • Gainesville, Florida • Indianapolis, Indiana + 12 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Brighton",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05866081"
    },
    {
      "nct_id": "NCT07516106",
      "title": "Prospective Multi-center Study Comparing Pulsed Tm:YAG Laser to Pulse Modulated Holmium Laser in the Treatment of Nephrolithiasis With FANS Access Sheaths",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone"
      ],
      "interventions": [
        {
          "name": "Moses Holmium:YAG laser",
          "type": "DEVICE"
        },
        {
          "name": "Thulium:YAG laser",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2026-06",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-07-23T04:22:16.704Z",
      "location_count": 2,
      "location_summary": "Phoenix, Arizona • New York, New York",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07516106"
    }
  ]
}