{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Nephrolithiasis%2C+Calcium+Phosphate",
    "query": {
      "condition": "Nephrolithiasis, Calcium Phosphate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-26T20:01:26.435Z",
  "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": "NCT07408076",
      "title": "Sodium Bicarbonate as an Alternative to Potassium Citrate for Kidney Stones",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Kidney Stones, Urolithiasis, Hypocitraturia",
        "Nephrolithiasis"
      ],
      "interventions": [
        {
          "name": "Potassium Citrate",
          "type": "DRUG"
        },
        {
          "name": "Sodium Bicarbonate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2026-02-01",
      "completion_date": "2028-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-12",
      "last_synced_at": "2026-06-26T20:01:26.435Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • Sacramento, California • San Diego, California + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07408076"
    },
    {
      "nct_id": "NCT06974357",
      "title": "Evaluation of Genetic Abnormalities Amongst Calcium Phosphate Stone Formers",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nephrolithiasis"
      ],
      "interventions": [
        {
          "name": "Genetic testing",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Ryan L Steinberg",
      "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": 15,
      "start_date": "2025-03-15",
      "completion_date": "2027-03-01",
      "has_results": false,
      "last_update_posted_date": "2025-05-21",
      "last_synced_at": "2026-06-26T20:01:26.435Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06974357"
    },
    {
      "nct_id": "NCT01754779",
      "title": "Treatment for Calcium Phosphate Kidney Stone Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Calcium Phosphate Kidney Stones"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Citric Acid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Potassium Citrate",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2012-07",
      "completion_date": "2023-02-16",
      "has_results": true,
      "last_update_posted_date": "2024-04-04",
      "last_synced_at": "2026-06-26T20:01:26.435Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01754779"
    },
    {
      "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": "2026-06-26T20:01:26.435Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06003348"
    },
    {
      "nct_id": "NCT02096965",
      "title": "Use of Tolvaptan to Reduce Urinary Supersaturation: a Pilot Proof of Principle Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Nephrolithiasis, Calcium Oxalate",
        "Nephrolithiasis, Calcium Phosphate"
      ],
      "interventions": [
        {
          "name": "Tolvaptan",
          "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": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2014-03",
      "completion_date": "2015-11",
      "has_results": false,
      "last_update_posted_date": "2016-03-30",
      "last_synced_at": "2026-06-26T20:01:26.435Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02096965"
    },
    {
      "nct_id": "NCT01980004",
      "title": "Potassium Citrate Supplementation vs. Dietary Counseling",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Kidney Stone"
      ],
      "interventions": [
        {
          "name": "Potassium Citrate Supplementation",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Dietary Education",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "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": "2013-11",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2015-10-12",
      "last_synced_at": "2026-06-26T20:01:26.435Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01980004"
    }
  ]
}