{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cross+sectional+survey",
    "query": {
      "intervention": "Cross sectional survey"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 370,
    "total_pages": 37,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Cross+sectional+survey&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-19T13:44:28.657Z",
  "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": "NCT05536401",
      "title": "P200TE Agreement and Precision Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retina Disease",
        "Glaucoma",
        "Normal"
      ],
      "interventions": [
        {
          "name": "P200TE",
          "type": "DEVICE"
        },
        {
          "name": "Predicate Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Optos, PLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2022-09-02",
      "completion_date": "2022-09-20",
      "has_results": false,
      "last_update_posted_date": "2022-11-17",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05536401"
    },
    {
      "nct_id": "NCT00147888",
      "title": "Changes in Nasal Patency With Changes in Posture, Temperature, Humidity and Nasal Patency Seen by Acoustic Rhinometry",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Mucosal Congestion"
      ],
      "interventions": [
        {
          "name": "Acoustic rhinometry (procedure)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "58 Years",
        "sex": "ALL",
        "summary": "18 Years to 58 Years"
      },
      "enrollment_count": 15,
      "start_date": "2004-03",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2013-09-05",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00147888"
    },
    {
      "nct_id": "NCT01843257",
      "title": "Effects of Alcohol After Bariatric Surgery",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Alcohol challenge test Alcohol visit first",
          "type": "OTHER"
        },
        {
          "name": "Alcohol challenge test Placebo visit first",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 65 Years · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2013-04",
      "completion_date": "2021-09",
      "has_results": false,
      "last_update_posted_date": "2021-04-27",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01843257"
    },
    {
      "nct_id": "NCT00056849",
      "title": "Genetic Determinants of Ankylosing Spondylitis Severity",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ankylosing Spondylitis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 134,
      "start_date": "2003-03-24",
      "completion_date": "2020-01-03",
      "has_results": false,
      "last_update_posted_date": "2020-01-07",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00056849"
    },
    {
      "nct_id": "NCT03560609",
      "title": "Optic Nerve Head Structural Response to IOP Elevation in Patients With Keratoconus",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Keratoconus",
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "Ophthalmodynamometer",
          "type": "DEVICE"
        },
        {
          "name": "Goldmann applanation tonometer",
          "type": "DEVICE"
        },
        {
          "name": "Pentacam",
          "type": "DEVICE"
        },
        {
          "name": "ORA",
          "type": "DEVICE"
        },
        {
          "name": "Optical Coherence Tomography (OCT)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NYU Langone Health",
      "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": 3,
      "start_date": "2018-11-15",
      "completion_date": "2024-01-19",
      "has_results": true,
      "last_update_posted_date": "2025-01-29",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03560609"
    },
    {
      "nct_id": "NCT06105892",
      "title": "Eye Recovery Automation for Post Injury Dysfunction (iRAPID)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Convergence Insufficiency",
        "Traumatic Brain Injury",
        "Concussion, Mild"
      ],
      "interventions": [
        {
          "name": "Virtual Eye Rotation Vision Exercise (VERVE)",
          "type": "DEVICE"
        },
        {
          "name": "Sham VR Therapy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "New Jersey Institute of Technology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 100,
      "start_date": "2023-10-23",
      "completion_date": "2027-09-20",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06105892"
    },
    {
      "nct_id": "NCT03175471",
      "title": "MRI Based Biomarkers in Pediatric Autoimmune Liver Disease",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Autoimmune Liver Disease",
        "Primary Sclerosing Cholangitis",
        "Autoimmune Hepatitis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "23 Years",
        "sex": "ALL",
        "summary": "6 Years to 23 Years"
      },
      "enrollment_count": 115,
      "start_date": "2017-01-17",
      "completion_date": "2030-01-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03175471"
    },
    {
      "nct_id": "NCT00634816",
      "title": "Bone Mineral Density in Adult Survivors of Solid Pediatric Cancers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Regional Osteoporosis as a Result of Chemotherapy"
      ],
      "interventions": [
        {
          "name": "DXA Scan",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "State University of New York - Upstate Medical University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "16 Years to 40 Years"
      },
      "enrollment_count": 38,
      "start_date": "2003-04",
      "completion_date": "2006-04",
      "has_results": false,
      "last_update_posted_date": "2013-05-30",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00634816"
    },
    {
      "nct_id": "NCT06078358",
      "title": "Resistance Exercise Training in Children.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Resistance Training"
      ],
      "interventions": [
        {
          "name": "Resistance exercise training",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "8 Years to 10 Years"
      },
      "enrollment_count": 32,
      "start_date": "2021-08-02",
      "completion_date": "2023-09-06",
      "has_results": false,
      "last_update_posted_date": "2023-10-13",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 4,
      "location_summary": "Kansas City, Kansas • Overland Park, Kansas • Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06078358"
    },
    {
      "nct_id": "NCT03225040",
      "title": "Bone MicroArchitecture in Acromegaly",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acromegaly",
        "Osteoporosis Risk"
      ],
      "interventions": [
        {
          "name": "Pegvisomant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 77,
      "start_date": "2016-08-03",
      "completion_date": "2019-12-21",
      "has_results": false,
      "last_update_posted_date": "2021-07-13",
      "last_synced_at": "2026-09-19T13:44:28.657Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03225040"
    }
  ]
}