{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Ureteral+Calculus&page=2",
    "query": {
      "condition": "Ureteral Calculus",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Ureteral+Calculus&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T11:05:56.746Z",
  "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": "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": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02577146"
    },
    {
      "nct_id": "NCT06083051",
      "title": "Differences in Postoperative Symptoms With Four Ureteral Stents",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Urinary Stone"
      ],
      "interventions": [
        {
          "name": "6Fr Percuflex ureteral stents",
          "type": "DEVICE"
        },
        {
          "name": "6Fr Tria ureteral stents",
          "type": "DEVICE"
        },
        {
          "name": "4.8Fr Tria ureteral stents",
          "type": "DEVICE"
        },
        {
          "name": "4.8Fr Percuflex ureteral stents",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 272,
      "start_date": "2024-03-21",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06083051"
    },
    {
      "nct_id": "NCT00713739",
      "title": "Alfuzosin for Medical Expulsion Therapy of Ureteral Stones",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Kidney Stones"
      ],
      "interventions": [
        {
          "name": "Alfuzosin",
          "type": "DRUG"
        },
        {
          "name": "nifedipine",
          "type": "DRUG"
        },
        {
          "name": "doxazosin",
          "type": "DRUG"
        },
        {
          "name": "prazosin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "United States Naval Medical Center, San Diego",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 240,
      "start_date": "2008-01",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2012-04-27",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00713739"
    },
    {
      "nct_id": "NCT00762424",
      "title": "Effect of Tamsulosin on Stone Expulsion and Pain Resolution in ED Patients With Ureterolithiasis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone"
      ],
      "interventions": [
        {
          "name": "Flowmax",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "WellSpan Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 53,
      "start_date": "2007-06",
      "completion_date": "2011-01",
      "has_results": true,
      "last_update_posted_date": "2014-12-17",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "York, Pennsylvania",
      "locations": [
        {
          "city": "York",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00762424"
    },
    {
      "nct_id": "NCT05715086",
      "title": "UPURS Trial for Patient-centered Management of Symptomatic Obstructing Stones",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ureteral Stone"
      ],
      "interventions": [
        {
          "name": "Ureteroscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2023-08-23",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-01-17",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05715086"
    },
    {
      "nct_id": "NCT06346483",
      "title": "Ureteroscopy With High-powered Holmium:Yag Laser Lithotripsy With and Moses On or Moses Off",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone",
        "Ureteral Stone"
      ],
      "interventions": [
        {
          "name": "Dusting without Moses 2.0 Modulation",
          "type": "PROCEDURE"
        },
        {
          "name": "Dusting with Moses 2.0 Modulation",
          "type": "PROCEDURE"
        },
        {
          "name": "Moses 2.0 Modulation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Northwestern University",
      "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": 150,
      "start_date": "2023-06-09",
      "completion_date": "2026-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06346483"
    },
    {
      "nct_id": "NCT03656913",
      "title": "Validation of Low Dose CT for Diagnosis of Urolithiasis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nephrolithiasis",
        "Ureterolithiases"
      ],
      "interventions": [
        {
          "name": "Extremely low dose CT",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "4 Years to 20 Years"
      },
      "enrollment_count": 15,
      "start_date": "2018-11-30",
      "completion_date": "2020-09-28",
      "has_results": false,
      "last_update_posted_date": "2021-02-18",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03656913"
    },
    {
      "nct_id": "NCT07601932",
      "title": "Patient Positioning for Treatment of Proximal Ureteral Stones",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ureteral Stone"
      ],
      "interventions": [
        {
          "name": "Reverse Trendelenburg Position",
          "type": "PROCEDURE"
        },
        {
          "name": "T-Tilt Position",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2026-05-21",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07601932"
    },
    {
      "nct_id": "NCT05153629",
      "title": "Noninvasive Electrical Stimulator as a Pain Control Treatment Post-ureteroscopy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone",
        "Ureteral Calculi",
        "Nephrolithiasis"
      ],
      "interventions": [
        {
          "name": "TENS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 41,
      "start_date": "2021-01-10",
      "completion_date": "2023-10-01",
      "has_results": true,
      "last_update_posted_date": "2024-10-22",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05153629"
    },
    {
      "nct_id": "NCT03130907",
      "title": "The Role of Ureteral Stenting Following Uncomplicated Ureteroscopy for Ureteral and Renal Stones: A Randomized, Controlled Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ureteroscopy"
      ],
      "interventions": [
        {
          "name": "Placement of ureteral stent",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "San Antonio Uniformed Services Health Education Consortium",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 72,
      "start_date": "2017-06-01",
      "completion_date": "2020-05-16",
      "has_results": false,
      "last_update_posted_date": "2020-06-02",
      "last_synced_at": "2026-07-23T11:05:56.746Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03130907"
    }
  ]
}