{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Validation+Study&page=3",
    "query": {
      "condition": "Validation Study",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 503,
    "total_pages": 51,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Validation+Study&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Validation+Study&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T13:58:12.043Z",
  "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": "NCT02455388",
      "title": "d13C Added Sugar Intake Biomarker: Determining Validity in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Validation Studies"
      ],
      "interventions": [
        {
          "name": "High added sugar diet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Low added sugar diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Virginia Polytechnic Institute and State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Years to 18 Years"
      },
      "enrollment_count": 370,
      "start_date": "2014-04",
      "completion_date": "2018-02",
      "has_results": true,
      "last_update_posted_date": "2019-02-26",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 1,
      "location_summary": "Blacksburg, Virginia",
      "locations": [
        {
          "city": "Blacksburg",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02455388"
    },
    {
      "nct_id": "NCT03070470",
      "title": "CiPA Phase 1 ECG Biomarker Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Drug-induced QT Prolongation",
        "Pharmacokinetics",
        "Pharmacodynamics"
      ],
      "interventions": [
        {
          "name": "Ranolazine",
          "type": "DRUG"
        },
        {
          "name": "Verapamil",
          "type": "DRUG"
        },
        {
          "name": "Lopinavir / Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Chloroquine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Dofetilide and Diltiazem",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Food and Drug Administration (FDA)",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 60,
      "start_date": "2017-03-14",
      "completion_date": "2017-06-26",
      "has_results": true,
      "last_update_posted_date": "2020-01-18",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 1,
      "location_summary": "West Bend, Wisconsin",
      "locations": [
        {
          "city": "West Bend",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03070470"
    },
    {
      "nct_id": "NCT06872775",
      "title": "855303-RNA Biomarker Validation",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Fractures, Bone"
      ],
      "interventions": [
        {
          "name": "Blood draws to assess RNA expression levels",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 110,
      "start_date": "2025-08-25",
      "completion_date": "2028-08-24",
      "has_results": false,
      "last_update_posted_date": "2026-01-16",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 7,
      "location_summary": "Sacramento, California • Bloomington, Indiana • Columbia, Missouri + 4 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Bloomington",
          "state": "Indiana"
        },
        {
          "city": "Columbia",
          "state": "Missouri"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06872775"
    },
    {
      "nct_id": "NCT07220330",
      "title": "An Investigational Study Examining the Cross-Validation of QbMobile in ADHD and Normative Populations",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "No History of ADHD",
        "Attention Deficit Hyperactivity Disorder (ADHD)",
        "Healthy Volunteer"
      ],
      "interventions": [
        {
          "name": "QbMobile",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Qbtech AB",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "6 Years to 60 Years"
      },
      "enrollment_count": 700,
      "start_date": "2025-01-15",
      "completion_date": "2026-10",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 3,
      "location_summary": "San Jose, California • Largo, Florida • Orlando, Florida",
      "locations": [
        {
          "city": "San Jose",
          "state": "California"
        },
        {
          "city": "Largo",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07220330"
    },
    {
      "nct_id": "NCT03711695",
      "title": "iBeat Wristwatch Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Arrythmia, Cardiac"
      ],
      "interventions": [
        {
          "name": "iBeat wristwatch device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "21 Years to 85 Years"
      },
      "enrollment_count": 55,
      "start_date": "2018-03-22",
      "completion_date": "2018-12-30",
      "has_results": false,
      "last_update_posted_date": "2019-03-05",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03711695"
    },
    {
      "nct_id": "NCT05052333",
      "title": "Examine the Psychosocial Impacts of COVID-19 Pandemic.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Psychosocial Impacts",
        "COVID-19 Pandemic"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Otago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2574,
      "start_date": "2021-12-01",
      "completion_date": "2023-10-31",
      "has_results": false,
      "last_update_posted_date": "2023-12-06",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05052333"
    },
    {
      "nct_id": "NCT03267004",
      "title": "Dietary Assessment Study Via Digital Images",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diet Habit"
      ],
      "interventions": [
        {
          "name": "Dietary Assessment of Meal A using images taken by Sony Smarteyeglass",
          "type": "DEVICE"
        },
        {
          "name": "Dietary Assessment of Meal B using Images taken by Sony Smarteyeglass",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The University of Tennessee, Knoxville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 30,
      "start_date": "2017-08-03",
      "completion_date": "2020-06-03",
      "has_results": true,
      "last_update_posted_date": "2025-04-08",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 1,
      "location_summary": "Knoxville, Tennessee",
      "locations": [
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03267004"
    },
    {
      "nct_id": "NCT00585819",
      "title": "Validation of a Novel Thoracic Neoplasm Radiotherapy Image Guidance Technique: A Pilot Study",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "reproduce breathing cycle utilizing spirometry",
          "type": "PROCEDURE"
        },
        {
          "name": "Freebreathing in Body fix mold",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "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": "2007-05",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2012-01-04",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00585819"
    },
    {
      "nct_id": "NCT01242553",
      "title": "Clinical Validation Study for iVue",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Normal and Ocular Pathology"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Optovue",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 48,
      "start_date": "2009-10",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2017-09-28",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 2,
      "location_summary": "Daly City, California • Denver, Colorado",
      "locations": [
        {
          "city": "Daly City",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01242553"
    },
    {
      "nct_id": "NCT06792851",
      "title": "ECHO-012 Kosmos Bladder Clinical Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Bladder Disease",
        "Bladder Retention Volume",
        "Bladder Dysfunction",
        "Bladder Function"
      ],
      "interventions": [
        {
          "name": "Kosmos Bladder Volume Algorithm",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "EchoNous Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "7 Years to 89 Years"
      },
      "enrollment_count": 146,
      "start_date": "2024-08-05",
      "completion_date": "2024-08-15",
      "has_results": false,
      "last_update_posted_date": "2025-01-27",
      "last_synced_at": "2026-10-22T13:58:12.043Z",
      "location_count": 1,
      "location_summary": "Renton, Washington",
      "locations": [
        {
          "city": "Renton",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06792851"
    }
  ]
}