{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Longitudinal+Studies&page=31",
    "query": {
      "condition": "Longitudinal Studies",
      "page": 31
    },
    "page_size": 10
  },
  "pagination": {
    "page": 31,
    "page_size": 10,
    "total_count": 8685,
    "total_pages": 869,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Longitudinal+Studies&page=32&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Longitudinal+Studies&page=30&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-05T04:55:20.106Z",
  "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": "NCT00278785",
      "title": "Brief Intervention for Alcohol Use Among Injured Patients",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol Drinking",
        "Wounds and Injuries"
      ],
      "interventions": [
        {
          "name": "Brief Motivational Interview",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 830,
      "start_date": "2006-03",
      "completion_date": "2027-01-24",
      "has_results": false,
      "last_update_posted_date": "2026-02-10",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00278785"
    },
    {
      "nct_id": "NCT05864976",
      "title": "Neurosurgical Neuronavigation Using Resting State MRI and Machine Learning",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glioblastoma Multiforme"
      ],
      "interventions": [
        {
          "name": "Support Vector Machine",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2023-12-06",
      "completion_date": "2030-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05864976"
    },
    {
      "nct_id": "NCT03591016",
      "title": "Prospective Observational Study of Difficult Intravenous Access in the Operating Room",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Difficult Intravenous Access"
      ],
      "interventions": [
        {
          "name": "Recording number of IV attempts",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ralph Beltran",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "Up to 18 Years"
      },
      "enrollment_count": 1000,
      "start_date": "2018-07-02",
      "completion_date": "2020-12-08",
      "has_results": false,
      "last_update_posted_date": "2021-02-15",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03591016"
    },
    {
      "nct_id": "NCT05067478",
      "title": "Composur: Study to Understand the Performance of Vibegron in Participants with Overactive Bladder (OAB)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Overactive Bladder"
      ],
      "interventions": [
        {
          "name": "Vibegron",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Urovant Sciences GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 403,
      "start_date": "2021-10-28",
      "completion_date": "2024-07-26",
      "has_results": false,
      "last_update_posted_date": "2024-12-27",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 64,
      "location_summary": "Homewood, Alabama • Phoenix, Arizona • Tempe, Arizona + 54 more",
      "locations": [
        {
          "city": "Homewood",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Berkley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05067478"
    },
    {
      "nct_id": "NCT02210052",
      "title": "Safety of Spine Radiofrequency Procedures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Radiofrequency Ablation in Patients With Spinal Hardware"
      ],
      "interventions": [
        {
          "name": "Radiofrequency cannula",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 6,
      "start_date": "2014-09",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2017-07-26",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02210052"
    },
    {
      "nct_id": "NCT03954678",
      "title": "Exercise in Patients Undergoing Urologic Surgery",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Perioperative Complication"
      ],
      "interventions": [
        {
          "name": "Exercise Group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nutrition Group",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2019-07-30",
      "completion_date": "2028-07",
      "has_results": false,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03954678"
    },
    {
      "nct_id": "NCT01220115",
      "title": "A 3-year, Prospective, Non-interventional, Multicenter Registry in Sickle Cell Disease (SCD) Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sickle Cell Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 498,
      "start_date": "2010-01",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2019-12-09",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 42,
      "location_summary": "Little Rock, Arkansas • Oakland, California • Orange, California + 31 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Stamford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01220115"
    },
    {
      "nct_id": "NCT03096808",
      "title": "Adaptive Radiotherapy for Head and Neck Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Head and Neck Cancer",
        "Paranasal Sinus Cancer",
        "Oropharynx Cancer",
        "Oral Cavity Cancer",
        "Nasopharynx Cancer",
        "Larynx Cancer",
        "Hypopharynx Cancer"
      ],
      "interventions": [
        {
          "name": "Adaptive Radiotherapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 64,
      "start_date": "2017-03-15",
      "completion_date": "2021-10-22",
      "has_results": false,
      "last_update_posted_date": "2021-10-26",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 8,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 5 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03096808"
    },
    {
      "nct_id": "NCT04485416",
      "title": "Pilot Trial of Eltrombopag in Patients Undergoing Chemotherapy for Malignant Solid Tumors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Solid Tumor, Childhood",
        "Solid Tumor"
      ],
      "interventions": [
        {
          "name": "Eltrombopag",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "1 Year to 18 Years"
      },
      "enrollment_count": 9,
      "start_date": "2021-07-16",
      "completion_date": "2025-01-20",
      "has_results": false,
      "last_update_posted_date": "2026-10-09",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04485416"
    },
    {
      "nct_id": "NCT00454506",
      "title": "Hospital for Special Surgery Hip Arthroplasty Cohort",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hip Arthroplasty"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Hospital for Special Surgery, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3000,
      "start_date": "2007-04",
      "completion_date": "2027-04",
      "has_results": false,
      "last_update_posted_date": "2026-04-28",
      "last_synced_at": "2026-11-05T04:55:20.106Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00454506"
    }
  ]
}