{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transcranial+Doppler+Ultrasound&page=2",
    "query": {
      "intervention": "Transcranial Doppler Ultrasound",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 60,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transcranial+Doppler+Ultrasound&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transcranial+Doppler+Ultrasound&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T19:32:47.183Z",
  "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": "NCT02354300",
      "title": "Transcranial Doppler Ultrasound Monitoring During Flow-Diverter Embolization",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Intracranial Aneurysm",
        "Aneurysm, Intracranial",
        "Giant Intracranial Aneurysm"
      ],
      "interventions": [
        {
          "name": "TCD Ultrasound",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2015-04",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2016-08-26",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02354300"
    },
    {
      "nct_id": "NCT01345305",
      "title": "Biomarker Development in Sturge-Weber Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sturge-Weber Syndrome"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Hugo W. Moser Research Institute at Kennedy Krieger, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "6 Months to 21 Years"
      },
      "enrollment_count": 40,
      "start_date": "2010-07",
      "completion_date": "2012-11",
      "has_results": false,
      "last_update_posted_date": "2020-04-16",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01345305"
    },
    {
      "nct_id": "NCT04242602",
      "title": "Multimodal Monitoring of Cerebral Autoregulation After Pediatric Brain Injury",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Traumatic Brain Injury",
        "Brain Injuries",
        "Brain Injury, Vascular"
      ],
      "interventions": [
        {
          "name": "Transcranial Doppler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "28 Days",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "28 Days to 18 Years"
      },
      "enrollment_count": 29,
      "start_date": "2018-11-06",
      "completion_date": "2020-09-10",
      "has_results": false,
      "last_update_posted_date": "2026-03-30",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04242602"
    },
    {
      "nct_id": "NCT04583163",
      "title": "Variability in Transcranial Doppler Technique in Neuro-Critical Care Patients",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cerebral Aneurysm",
        "Stroke",
        "Vasospasm, Cerebral",
        "Subarachnoid Hemorrhage, Aneurysmal",
        "Aneurysmal Subarachnoid Hemorrhage",
        "Cerebral Ischemia"
      ],
      "interventions": [
        {
          "name": "Transcranial Doppler",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Hackensack Meridian Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3,
      "start_date": "2020-09-22",
      "completion_date": "2022-08-12",
      "has_results": true,
      "last_update_posted_date": "2025-04-15",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 1,
      "location_summary": "Hackensack, New Jersey",
      "locations": [
        {
          "city": "Hackensack",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04583163"
    },
    {
      "nct_id": "NCT05920759",
      "title": "Sex-specific Effect of Restricted Sleep on Brain Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cerebrovascular Circulation"
      ],
      "interventions": [
        {
          "name": "Cerebral blood flow",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Missouri-Columbia",
      "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": 16,
      "start_date": "2023-10-01",
      "completion_date": "2025-09-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-26",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 1,
      "location_summary": "Columbia, Missouri",
      "locations": [
        {
          "city": "Columbia",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05920759"
    },
    {
      "nct_id": "NCT00890396",
      "title": "Long-Term Effects of Hydroxyurea in Children With Sickle Cell Anemia (The BABY HUG Follow-up Study)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Anemia, Sickle Cell"
      ],
      "interventions": [
        {
          "name": "Hydroxyurea",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "7 Years",
        "sex": "ALL",
        "summary": "2 Years to 7 Years"
      },
      "enrollment_count": 163,
      "start_date": "2008-09",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2020-08-20",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 14,
      "location_summary": "Birmingham, Alabama • Washington D.C., District of Columbia • Miami, Florida + 10 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00890396"
    },
    {
      "nct_id": "NCT01773252",
      "title": "Right to Left Cardiac Shunt Detection",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Right to Left Shunt",
        "Patent Foramen Ovale",
        "Atrial Septal Defect"
      ],
      "interventions": [
        {
          "name": "Flow Detection System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Cardiox Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 141,
      "start_date": "2012-11",
      "completion_date": "2015-11",
      "has_results": false,
      "last_update_posted_date": "2015-11-13",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 8,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Aurora, Colorado + 5 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01773252"
    },
    {
      "nct_id": "NCT04586049",
      "title": "Cardiovascular and Neurovascular Regulation in GWI",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Brain Blood Flow",
        "Neurovascular Control"
      ],
      "interventions": [
        {
          "name": "MRI",
          "type": "DEVICE"
        },
        {
          "name": "Transcranial Doppler Ultrasound",
          "type": "DEVICE"
        },
        {
          "name": "Sympathetic Nerve Activity",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "68 Years",
        "sex": "ALL",
        "summary": "45 Years to 68 Years"
      },
      "enrollment_count": 70,
      "start_date": "2023-05-16",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04586049"
    },
    {
      "nct_id": "NCT07613918",
      "title": "Brain Blood Flow and Cerebral Autoregulation Monitoring in Critically Ill Children",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Critical Illness",
        "Pediatric Critical Illness",
        "Respiratory Failure",
        "Traumatic Brain Injury",
        "Cardiac Arrest"
      ],
      "interventions": [
        {
          "name": "Transcranial Doppler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "1 Day to 17 Years"
      },
      "enrollment_count": 125,
      "start_date": "2026-08-03",
      "completion_date": "2028-05",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07613918"
    },
    {
      "nct_id": "NCT02653638",
      "title": "Blood Brain Flow and Exercise",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Cerebrovascular Circulation"
      ],
      "interventions": [
        {
          "name": "Control",
          "type": "OTHER"
        },
        {
          "name": "Indomethacin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 80,
      "start_date": "2016-06",
      "completion_date": "2019-04",
      "has_results": false,
      "last_update_posted_date": "2019-12-18",
      "last_synced_at": "2026-09-30T19:32:47.183Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02653638"
    }
  ]
}