{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Calculus&page=2",
    "query": {
      "condition": "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=Calculus&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T18:41:40.595Z",
  "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": "NCT03855787",
      "title": "Ureteral Stent Placement After Ureteroscopy for Renal Stones: A Randomized Controlled Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Calculi"
      ],
      "interventions": [
        {
          "name": "Ureteroscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 103,
      "start_date": "2019-11-11",
      "completion_date": "2026-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 6,
      "location_summary": "Los Angeles, California • Sacramento, California • San Diego, California + 3 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03855787"
    },
    {
      "nct_id": "NCT04748120",
      "title": "Operative vs Non-Operative Management of Acute Appendicitis and Acute Cholecystitis in COVID-19 Positive Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19",
        "Appendicitis",
        "Cholecystitis, Acute",
        "Cholecystitis; Gallstone",
        "Cholecystitis"
      ],
      "interventions": [
        {
          "name": "Operative management",
          "type": "PROCEDURE"
        },
        {
          "name": "Non-operative management",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2020-12-28",
      "completion_date": "2021-04-06",
      "has_results": true,
      "last_update_posted_date": "2022-03-14",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04748120"
    },
    {
      "nct_id": "NCT05121168",
      "title": "Continuous Erector Spinae Plane Blocks to Treat Pain Following Percutaneous Nephrolithotomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pain, Acute Postoperative",
        "Renal Stone"
      ],
      "interventions": [
        {
          "name": "Active bupivacaine 0.25% via an erector spinae plane perineural catheter",
          "type": "DRUG"
        },
        {
          "name": "Placebo normal saline via an erector spinae plane perineural catheter",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2022-03-16",
      "completion_date": "2025-11-08",
      "has_results": false,
      "last_update_posted_date": "2025-11-25",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 2,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05121168"
    },
    {
      "nct_id": "NCT06942949",
      "title": "Evaluation of Enhanced Lithotripsy System (ELS) in the Treatment of Urinary Stones, A Pivotal Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Calculi; Ureteral Calculi"
      ],
      "interventions": [
        {
          "name": "ELS (Enhanced Lithotripsy System)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Avvio Medical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 101,
      "start_date": "2025-05-01",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2026-06-16",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 20,
      "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Bakersfield, California + 17 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06942949"
    },
    {
      "nct_id": "NCT01310582",
      "title": "Recovery Following Desflurane Versus Sevoflurane for Outpatient Urologic Surgery in Elderly Females",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Ureteral Stent Occlusion",
        "Exposure Laser",
        "Ureterostomy; Functional Disturbance",
        "Vaginal Diseases",
        "Injury of Bladder",
        "Excessive Repair",
        "Calculi"
      ],
      "interventions": [
        {
          "name": "Desflurane",
          "type": "DRUG"
        },
        {
          "name": "Sevoflurane",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hahnemann University Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "FEMALE",
        "summary": "60 Years to 85 Years · Female only"
      },
      "enrollment_count": 57,
      "start_date": "2011-05",
      "completion_date": "2013-08",
      "has_results": true,
      "last_update_posted_date": "2013-12-24",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01310582"
    },
    {
      "nct_id": "NCT04023097",
      "title": "Self-selection Study of the Toothwave Toothbrush",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gingivitis",
        "Plaque",
        "Calculus",
        "Tooth Discoloration"
      ],
      "interventions": [
        {
          "name": "Toothwave toothbrush",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Home Skinovations Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 10,
      "start_date": "2019-07-02",
      "completion_date": "2019-07-09",
      "has_results": false,
      "last_update_posted_date": "2020-11-24",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04023097"
    },
    {
      "nct_id": "NCT06003348",
      "title": "Hydroxycitrate: A Novel Therapy for Calcium Phosphate Urinary Stones",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Calcium Phosphate Kidney Stones"
      ],
      "interventions": [
        {
          "name": "OHCit- standard dose",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Potassium Citrate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "OHCit- low dose",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "21 Years to 99 Years"
      },
      "enrollment_count": 25,
      "start_date": "2023-12-13",
      "completion_date": "2028-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06003348"
    },
    {
      "nct_id": "NCT04761107",
      "title": "Impact of COVID-19 on GU Disease",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19 Infection",
        "Genitourinary Cancer",
        "Benign Urologic Conditions"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 15240,
      "start_date": "2021-02-18",
      "completion_date": "2026-02",
      "has_results": false,
      "last_update_posted_date": "2025-01-31",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04761107"
    },
    {
      "nct_id": "NCT03421340",
      "title": "Non-Complex Biliary Stones DSC vs ERC",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Biliary Stones"
      ],
      "interventions": [
        {
          "name": "DSC",
          "type": "DEVICE"
        },
        {
          "name": "ERC",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Boston Scientific Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 250,
      "start_date": "2018-09-21",
      "completion_date": "2023-10-08",
      "has_results": true,
      "last_update_posted_date": "2025-01-17",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 4,
      "location_summary": "Stanford, California • Aurora, Colorado • New Orleans, Louisiana + 1 more",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03421340"
    },
    {
      "nct_id": "NCT05701098",
      "title": "SOUND Pivotal Trial - (Sonomotion stOne comminUtion resoNance ultrasounD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone",
        "Urolithiasis",
        "Nephrolithiasis",
        "Renal Calculi",
        "Kidney Calculi",
        "Nephrolith",
        "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": 64,
      "start_date": "2023-10-09",
      "completion_date": "2025-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-07-22T18:41:40.595Z",
      "location_count": 7,
      "location_summary": "San Diego, California • San Francisco, California • Santa Clara, California + 4 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Santa Clara",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Allentown",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05701098"
    }
  ]
}