{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Validation+Study&page=6",
    "query": {
      "condition": "Validation Study",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 503,
    "total_pages": 51,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Validation+Study&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Validation+Study&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-23T00:40:55.939Z",
  "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": "NCT04380415",
      "title": "Validation of Software for Assessment of Atrial Fibrillation From PPG Data Acquired by a Wearable Smartwatch",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "Single lead ambulatory ECG patch",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Fitbit LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 450000,
      "start_date": "2020-05-06",
      "completion_date": "2021-03-08",
      "has_results": false,
      "last_update_posted_date": "2021-03-09",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 2,
      "location_summary": "San Francisco, California • Boston, Massachusetts",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04380415"
    },
    {
      "nct_id": "NCT03492554",
      "title": "Electrocardiogram Clinical Validation Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "1-Lead ECG",
          "type": "OTHER"
        },
        {
          "name": "12-Lead ECG",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "Apple Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 602,
      "start_date": "2018-03-12",
      "completion_date": "2018-05-14",
      "has_results": true,
      "last_update_posted_date": "2020-12-03",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 5,
      "location_summary": "Miami, Florida • Orlando, Florida • The Villages, Florida + 2 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "The Villages",
          "state": "Florida"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03492554"
    },
    {
      "nct_id": "NCT02859545",
      "title": "Study to Understand Pain Experiences in Relationships",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Emotional Validation Training for Romantic Partners",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Chronic Pain Education Training for Romantic Partners",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wayne State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2016-07",
      "completion_date": "2018-06",
      "has_results": false,
      "last_update_posted_date": "2019-04-23",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02859545"
    },
    {
      "nct_id": "NCT04459273",
      "title": "Prospective Exploratory Study of FAPi PET/CT With Histopathology Validation in Patients With Various Cancers",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Bladder Carcinoma",
        "Cervical Carcinoma",
        "Cholangiocarcinoma",
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Hepatocellular Carcinoma",
        "Malignant Adrenal Gland Neoplasm",
        "Malignant Brain Neoplasm",
        "Malignant Pleural Neoplasm",
        "Malignant Skin Neoplasm",
        "Malignant Solid Neoplasm",
        "Malignant Testicular Neoplasm",
        "Malignant Thymus Neoplasm",
        "Neuroendocrine Neoplasm",
        "Thyroid Gland Carcinoma",
        "Urothelial Carcinoma",
        "Cancer of Unknown Primary Site"
      ],
      "interventions": [
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Gallium Ga 68 FAPi-46",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "18F-FDG",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "Jonsson Comprehensive Cancer Center",
      "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": "2020-08-27",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-05",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04459273"
    },
    {
      "nct_id": "NCT00844493",
      "title": "Low-dose Challenge Model With Enterotoxigenic E Coli",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Diarrhea"
      ],
      "interventions": [
        {
          "name": "E coli strain H10407 and buffer",
          "type": "BIOLOGICAL"
        },
        {
          "name": "E coli H10407 and buffer",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Johns Hopkins Bloomberg School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 30,
      "start_date": "2009-02",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2014-09-12",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00844493"
    },
    {
      "nct_id": "NCT03303391",
      "title": "Using Intradialytic Blood Pressure Slopes to Guide Ultrafiltration",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "ESRD",
        "Extracellular Fluid Alteration",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Intradialytic Blood Pressure Slope Based Ultrafiltration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 14,
      "start_date": "2017-11-01",
      "completion_date": "2020-01-01",
      "has_results": true,
      "last_update_posted_date": "2022-08-25",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03303391"
    },
    {
      "nct_id": "NCT00788983",
      "title": "Induced Hypoxia Study for Validation of SpO2 Accuracy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypoxia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Nonin Medical, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 12,
      "start_date": "2008-11",
      "completion_date": "2008-11",
      "has_results": false,
      "last_update_posted_date": "2013-09-20",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00788983"
    },
    {
      "nct_id": "NCT01000259",
      "title": "Study of Tumor Tissue Samples From Patients Who Have Undergone Surgery for Advanced Stage III or Stage IV Ovarian Epithelial Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Stage IIIA Ovarian Cancer",
        "Stage IIIB Ovarian Cancer",
        "Stage IIIC Ovarian Cancer",
        "Stage IV Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Gynecologic Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 174,
      "start_date": "2004-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-05-05",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01000259"
    },
    {
      "nct_id": "NCT02973178",
      "title": "Scanadu Urine Device Validation Study Protocol",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Urinary Tract Infections",
        "Proteinuria",
        "Ketone Urine",
        "Hematuria",
        "Glucose Intolerance"
      ],
      "interventions": [
        {
          "name": "Scanadu Urine Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Scanadu, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2016-08",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2016-11-25",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 2,
      "location_summary": "Mountain View, California • San Leandro, California",
      "locations": [
        {
          "city": "Mountain View",
          "state": "California"
        },
        {
          "city": "San Leandro",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02973178"
    },
    {
      "nct_id": "NCT00677768",
      "title": "Validation of Biomarkers in Amyotrophic Lateral Sclerosis (ALS)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Amyotrophic Lateral Sclerosis",
        "Lou Gehrig's Disease",
        "Primary Lateral Sclerosis",
        "Nervous System Diseases",
        "Hereditary Spastic Paraparesis"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "30 Years to 80 Years"
      },
      "enrollment_count": 475,
      "start_date": "2008-04",
      "completion_date": "2015-11",
      "has_results": false,
      "last_update_posted_date": "2016-06-03",
      "last_synced_at": "2026-10-23T00:40:55.939Z",
      "location_count": 29,
      "location_summary": "Phoenix, Arizona • Orange, California • Jacksonville, Florida + 24 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00677768"
    }
  ]
}