{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Calculus",
    "query": {
      "condition": "Calculus"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 288,
    "total_pages": 29,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Calculus&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T18:33:10.099Z",
  "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": "NCT03118973",
      "title": "Evaluation of Efficacy and Safety of Goff Transpancreatic Septotomy vs. Double Wire Technique for Achieving Biliary Access in Technically Challenging ERCPs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Biliary Obstruction",
        "Biliary Stones"
      ],
      "interventions": [
        {
          "name": "Goff trans-pancreatic septotomy vs. Double wire technique",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Subhas Banerjee",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1600,
      "start_date": "2016-09-27",
      "completion_date": "2020-01-01",
      "has_results": false,
      "last_update_posted_date": "2020-11-13",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03118973"
    },
    {
      "nct_id": "NCT02123082",
      "title": "Multi-Center Comparison of Dual Lumen Versus Single Lumen Ureteroscopes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Urolithiasis"
      ],
      "interventions": [
        {
          "name": "Storz single Lumen Ureteroscope",
          "type": "DEVICE"
        },
        {
          "name": "Dual Lumen Ureteroscope",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 156,
      "start_date": "2014-07-02",
      "completion_date": "2021-04",
      "has_results": false,
      "last_update_posted_date": "2025-03-13",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 1,
      "location_summary": "Orange, California",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02123082"
    },
    {
      "nct_id": "NCT02028559",
      "title": "Safety and Effectiveness of the Ultrasonic Propulsion of Kidney Stones",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stones",
        "Nephrolithiasis",
        "Urolithiasis"
      ],
      "interventions": [
        {
          "name": "Propulse 1 with C5-2 probe",
          "type": "DEVICE"
        },
        {
          "name": "Propulse 1 with SC-X probe",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 172,
      "start_date": "2013-12-17",
      "completion_date": "2026-05-31",
      "has_results": true,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 2,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02028559"
    },
    {
      "nct_id": "NCT02236650",
      "title": "Primary Care Stepping Stones Triple P for Children With Autism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Autism"
      ],
      "interventions": [
        {
          "name": "Primary Care Stepping Stones Triple P (PC-SS Triple P)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Treatment as Usual",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "St. Louis University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2014-07",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2015-12-17",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02236650"
    },
    {
      "nct_id": "NCT04387617",
      "title": "A Study to Assess the Effect of Cannabidiol Oil on Pain After Ureteroscopy for Kidney Stones",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Urinary Stone"
      ],
      "interventions": [
        {
          "name": "Cannabidiol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 90,
      "start_date": "2021-02-15",
      "completion_date": "2022-01-31",
      "has_results": true,
      "last_update_posted_date": "2023-01-18",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04387617"
    },
    {
      "nct_id": "NCT03704350",
      "title": "Influence of Obesity on Endogenous Oxalate Synthesis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone"
      ],
      "interventions": [
        {
          "name": "controlled 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": 40,
      "start_date": "2019-05-24",
      "completion_date": "2026-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03704350"
    },
    {
      "nct_id": "NCT05417568",
      "title": "Oxalate-Driven Host Responses in Kidney Stone Disease",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stones"
      ],
      "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": 88,
      "start_date": "2023-05-19",
      "completion_date": "2027-05-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05417568"
    },
    {
      "nct_id": "NCT06982235",
      "title": "Stone and Laser Therapies Post-Market Study (SALT)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Benign Prostate Hypertrophy(BPH)",
        "Renal Calculi",
        "Ureteral Stones, Kidney Stones",
        "Calculi, Urinary",
        "Urinary Tract Procedure"
      ],
      "interventions": [
        {
          "name": "Ureteroscope system",
          "type": "DEVICE"
        },
        {
          "name": "Laser system",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Boston Scientific Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 238,
      "start_date": "2025-06-30",
      "completion_date": "2029-02",
      "has_results": false,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 5,
      "location_summary": "Phoenix, Arizona • Miami, Florida • Tampa, Florida + 2 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06982235"
    },
    {
      "nct_id": "NCT06574217",
      "title": "Evaluation of Stepping Stones",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Teen Pregnancy Prevention"
      ],
      "interventions": [
        {
          "name": "Stepping Stones (StSt)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Like",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "The Policy & Research Group",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "22 Years",
        "sex": "ALL",
        "summary": "12 Years to 22 Years"
      },
      "enrollment_count": 650,
      "start_date": "2024-09-16",
      "completion_date": "2028-09-14",
      "has_results": false,
      "last_update_posted_date": "2026-05-13",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06574217"
    },
    {
      "nct_id": "NCT05334979",
      "title": "Oxalate and Citrate",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stone",
        "Normal Controls"
      ],
      "interventions": [
        {
          "name": "Kidney stones Normal controls Consuming a special drink (sodium oxalate) during an all day visit to the University of Chicago research clinic",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 50,
      "start_date": "2022-10-27",
      "completion_date": "2026-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-08",
      "last_synced_at": "2026-07-22T18:33:10.099Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05334979"
    }
  ]
}