{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Prevalence",
    "query": {
      "intervention": "Prevalence"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 407,
    "total_pages": 41,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Prevalence&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T04:52:32.721Z",
  "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": "NCT02207647",
      "title": "Prevalence of Pathogens in Cerebrospinal Fluid Obtained From Emergency Department Patients",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Meningoencephalitis",
        "Other Syndromes Requiring Lumbar Puncture in Emergency Department"
      ],
      "interventions": [
        {
          "name": "no intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Olive View-UCLA Education & Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Months and older"
      },
      "enrollment_count": 1000,
      "start_date": "2014-04",
      "completion_date": "2021-12",
      "has_results": false,
      "last_update_posted_date": "2022-04-20",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 1,
      "location_summary": "Sylmar, California",
      "locations": [
        {
          "city": "Sylmar",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02207647"
    },
    {
      "nct_id": "NCT06205511",
      "title": "The Prevalence of Oral HPV Infection and Oral Lesions in People Living With HIV",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Human Immunodeficiency Virus",
        "Human Papilloma Virus"
      ],
      "interventions": [
        {
          "name": "Oral HPV Sample",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Vivent Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2023-04-01",
      "completion_date": "2024-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 3,
      "location_summary": "Denver, Colorado • St Louis, Missouri • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06205511"
    },
    {
      "nct_id": "NCT05094570",
      "title": "Interleukin-4Ra Blockade by Dupilumab Decreases Staphylococcus Colonization and Increases Microbial Diversity in CRSwNP",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Nasal Polyps",
        "Staphylococcus Aureus"
      ],
      "interventions": [
        {
          "name": "Dupilumab Prefilled Syringe",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 20,
      "start_date": "2022-09-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-04-01",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05094570"
    },
    {
      "nct_id": "NCT00336102",
      "title": "Thyroid Dysfunction in Women With Newly Diagnosed Breast Cancer Compared to Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Fatigue",
        "Hypothyroidism"
      ],
      "interventions": [
        {
          "name": "physiologic testing",
          "type": "OTHER"
        },
        {
          "name": "fatigue assessment and management",
          "type": "PROCEDURE"
        },
        {
          "name": "management of therapy complications",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "University of South Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 80 Years · Female only"
      },
      "enrollment_count": 541,
      "start_date": "2006-04",
      "completion_date": "2015-06",
      "has_results": false,
      "last_update_posted_date": "2015-07-09",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 41,
      "location_summary": "Phoenix, Arizona • Greeley, Colorado • Loveland, Colorado + 28 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Greeley",
          "state": "Colorado"
        },
        {
          "city": "Loveland",
          "state": "Colorado"
        },
        {
          "city": "Leesburg",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00336102"
    },
    {
      "nct_id": "NCT00585494",
      "title": "Prevalence of Inpatient Hyperglycemia: Risks, Complications and Outcomes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetes Mellitus",
        "Diabetes Complications"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 302,
      "start_date": "2007-12",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2015-10-26",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00585494"
    },
    {
      "nct_id": "NCT01996553",
      "title": "The Prevalence of Radial Artery Occlusion in Diagnostic Cardiac Catheterization and Percutaneous Intervention",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coronary Angiography",
        "Radial Artery Occlusion"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Jesse Brown VA Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 172,
      "start_date": "2013-04",
      "completion_date": "2017-07",
      "has_results": false,
      "last_update_posted_date": "2017-08-09",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01996553"
    },
    {
      "nct_id": "NCT04125186",
      "title": "A Cross-Functional, Population-Representative, Web-Based, Epidemiologic Study to Estimate the Prevalence and Burden of Nocturia Due to Nocturnal Polyuria in the US",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Nocturnal Polyuria"
      ],
      "interventions": [
        {
          "name": "Baseline EpiNP survey",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Bladder diary",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Testing of EpiNP baseline survey, bladder diary and a qualitative interview",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "No other intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Ferring Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 10190,
      "start_date": "2019-07-22",
      "completion_date": "2020-06-30",
      "has_results": false,
      "last_update_posted_date": "2023-03-13",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04125186"
    },
    {
      "nct_id": "NCT04807595",
      "title": "Estimation of the Prevalence of HER2 Low and Describe the SoC, Treatment Patterns, and Outcome in Real-world Practice Among Unresectable and/or Metastatic Breast Cancer Patients With HER2 Low Status",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "None (Observational study)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "130 Years",
        "sex": "ALL",
        "summary": "18 Years to 130 Years"
      },
      "enrollment_count": 798,
      "start_date": "2021-05-28",
      "completion_date": "2022-04-26",
      "has_results": false,
      "last_update_posted_date": "2023-03-06",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04807595"
    },
    {
      "nct_id": "NCT05332639",
      "title": "Personalized Risk Estimation for Crohn's Disease (PRE-Crohn's): Implementation and Feasibility",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Inflammatory Bowel Diseases",
        "Crohn Disease",
        "Crohn Colitis",
        "Crohn's Ileocolitis",
        "Crohn's Gastritis",
        "Crohn's Jejunitis",
        "Crohn's Duodenitis",
        "Crohn's Esophagitis"
      ],
      "interventions": [
        {
          "name": "Personalized Risk Estimation for Crohn's Disease (PRE-Crohn's) tool",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard Crohn's Disease Education",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "14 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2025-10-03",
      "completion_date": "2027-11",
      "has_results": false,
      "last_update_posted_date": "2026-01-30",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05332639"
    },
    {
      "nct_id": "NCT05697198",
      "title": "PRospective REgistry of Advanced Stage CancER (PREFER) Patients to Assess Prevalence of Actionable Biomarkers and Driver Mutations to Address Disparities in Precision Medicine",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Cancer",
        "Ovarian Cancer",
        "Uterine Cancer",
        "Colorectal Cancer",
        "Stomach Cancer",
        "Esophageal Cancer",
        "Pancreatic Cancer",
        "Melanoma",
        "Breast Cancer",
        "Head and Neck Cancer",
        "Soft Tissue Sarcoma",
        "Rhabdomyosarcoma",
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "OmniSeq Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Labcorp Corporation of America Holdings, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1429,
      "start_date": "2021-04-19",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-03-06",
      "last_synced_at": "2026-09-10T04:52:32.721Z",
      "location_count": 8,
      "location_summary": "Fort Payne, Alabama • Orange City, Florida • Stuart, Florida + 5 more",
      "locations": [
        {
          "city": "Fort Payne",
          "state": "Alabama"
        },
        {
          "city": "Orange City",
          "state": "Florida"
        },
        {
          "city": "Stuart",
          "state": "Florida"
        },
        {
          "city": "Dublin",
          "state": "Georgia"
        },
        {
          "city": "Fort Wayne",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05697198"
    }
  ]
}