{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Longitudinal&page=49",
    "query": {
      "intervention": "Longitudinal",
      "page": 49
    },
    "page_size": 10
  },
  "pagination": {
    "page": 49,
    "page_size": 10,
    "total_count": 1258,
    "total_pages": 126,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Longitudinal&page=50&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Longitudinal&page=48&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-04T10:36:57.878Z",
  "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": "NCT04924153",
      "title": "A Natural History Study of Participants With Potassium Sodium-Activated Channel Subfamily T Member 1 (KCNT1)-Related Epilepsy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "KCNT1-Related Epilepsy"
      ],
      "interventions": [
        {
          "name": "No Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "0 Years to 50 Years"
      },
      "enrollment_count": 35,
      "start_date": "2021-08-17",
      "completion_date": "2023-08-29",
      "has_results": false,
      "last_update_posted_date": "2024-02-28",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04924153"
    },
    {
      "nct_id": "NCT06554275",
      "title": "CCHS Secure Health-hub Advancing Research Efforts (CCHS SHARE)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Central Hypoventilation Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Ann & Robert H Lurie Children's Hospital of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 125,
      "start_date": "2024-09-01",
      "completion_date": "2028-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-07-16",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06554275"
    },
    {
      "nct_id": "NCT00787995",
      "title": "A Clinical Assessment Study of Subjects With Mucopolysaccharidosis IVA (Morquio Syndrome)",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "MPS IV A",
        "Mucopolysaccharidosis IVA",
        "Morquio A Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "BioMarin Pharmaceutical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 353,
      "start_date": "2008-10",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2014-12-08",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 2,
      "location_summary": "Oakland, California • Chicago, Illinois",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00787995"
    },
    {
      "nct_id": "NCT07563777",
      "title": "100-Year Human Aging Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Aging",
        "Aging Well",
        "All-Cause Mortality",
        "Mortality",
        "Metabolic Syndrome",
        "Cardiovascular Diseases",
        "Cognitive Dysfunction",
        "Musculoskeletal Diseases",
        "Neoplasms",
        "Frailty",
        "Activities of Daily Living",
        "Health-Related Quality of Life",
        "Disability Physical",
        "Neuro-Degenerative Disease",
        "Dementia"
      ],
      "interventions": [
        {
          "name": "Comprehensive Multi-System Clinical Screening",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Longevity Metrics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000000,
      "start_date": "2025-02-09",
      "completion_date": "2099-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-08",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 1,
      "location_summary": "Boulder, Colorado",
      "locations": [
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07563777"
    },
    {
      "nct_id": "NCT01780441",
      "title": "Early Biomarkers of Autism in Infants With Tuberous Sclerosis Complex (TSC)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Tuberous Sclerosis Complex"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": "12 Months",
        "sex": "ALL",
        "summary": "3 Months to 12 Months"
      },
      "enrollment_count": 166,
      "start_date": "2013-01",
      "completion_date": "2020-12",
      "has_results": false,
      "last_update_posted_date": "2021-02-04",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 5,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Boston, Massachusetts + 2 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01780441"
    },
    {
      "nct_id": "NCT05006729",
      "title": "Risk Underlying Rural Areas Longitudinal Cohort Study (RURAL) Heart and Lung Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rural Health",
        "Pulmonary Disease",
        "Heart Diseases"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "25 Years to 64 Years"
      },
      "enrollment_count": 4600,
      "start_date": "2021-01-15",
      "completion_date": "2031-04",
      "has_results": false,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05006729"
    },
    {
      "nct_id": "NCT01289444",
      "title": "Longitudinal Pediatric Palliative Care: Quality of Life & Spiritual Struggle",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV"
      ],
      "interventions": [
        {
          "name": "FAmily CEntered (FACE) ACP",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Healthy Living Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Maureen Lyon",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "14 Years to 21 Years"
      },
      "enrollment_count": 216,
      "start_date": "2011-07",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2021-10-12",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 5,
      "location_summary": "Washington D.C., District of Columbia • Fort Lauderdale, Florida • Miami, Florida + 1 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01289444"
    },
    {
      "nct_id": "NCT04234919",
      "title": "Longitudinal Study of Cell Free DNA in Lung Transplant",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Transplant Rejection"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 24,
      "start_date": "2020-03-19",
      "completion_date": "2021-11-22",
      "has_results": false,
      "last_update_posted_date": "2022-11-02",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04234919"
    },
    {
      "nct_id": "NCT00738998",
      "title": "Longitudinal Assessment of Arthralgia and Related Symptoms in Breast Cancer Patients Receiving Aromatase Inhibitors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Questionnaire",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Phone Calls",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 102,
      "start_date": "2008-06-05",
      "completion_date": "2019-06-28",
      "has_results": false,
      "last_update_posted_date": "2020-01-02",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00738998"
    },
    {
      "nct_id": "NCT00505297",
      "title": "A Longitudinal Study of Osteoarthritis (OA) Disease Progression Measured by MRI, dGEMRIC, and Radiography",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 18,
      "start_date": "2004-08",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2007-07-23",
      "last_synced_at": "2026-11-04T10:36:57.878Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00505297"
    }
  ]
}