{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transcranial+Doppler&page=3",
    "query": {
      "intervention": "Transcranial Doppler",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 60,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transcranial+Doppler&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transcranial+Doppler&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T18:47:15.299Z",
  "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": "NCT05547412",
      "title": "Validation of Velocity Curvature Index as a Diagnostic Biomarker Tool for Assessment of Large Vessel Stroke",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Stroke",
        "Acute Ischemic Stroke"
      ],
      "interventions": [
        {
          "name": "NovaGuide 2 Intelligent Ultrasound System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NeuraSignal Inc dba NovaSignal",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2022-09-21",
      "completion_date": "2023-01-31",
      "has_results": true,
      "last_update_posted_date": "2024-04-09",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 1,
      "location_summary": "Chattanooga, Tennessee",
      "locations": [
        {
          "city": "Chattanooga",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05547412"
    },
    {
      "nct_id": "NCT05848297",
      "title": "Automated Robotic TCD in Traumatic Brain Injury",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Brain Injuries, Traumatic"
      ],
      "interventions": [
        {
          "name": "Transcranial Doppler ultrasonography (TCD)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2025-05-20",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2026-06-03",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 3,
      "location_summary": "Davis, California • Winston-Salem, North Carolina • Richmond, Virginia",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05848297"
    },
    {
      "nct_id": "NCT00745602",
      "title": "The Effect of Atrial Fibrillation Hemodynamics on Regulation of Cerebral Blood Flow",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation"
      ],
      "interventions": [
        {
          "name": "non-invasive testing",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "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": "2007-10",
      "completion_date": "2009-10",
      "has_results": false,
      "last_update_posted_date": "2019-01-09",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00745602"
    },
    {
      "nct_id": "NCT01019343",
      "title": "Physiological Investigations of Movement Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parkinson's Disease",
        "Tourette's Syndrome",
        "Tic Disorders",
        "Dystonia",
        "Movement Disorders"
      ],
      "interventions": [
        {
          "name": "Transcranial Direct Current Stimulation (tDCS)",
          "type": "PROCEDURE"
        },
        {
          "name": "Eye-tracking Device",
          "type": "DEVICE"
        },
        {
          "name": "Pulsed vibrator",
          "type": "DEVICE"
        },
        {
          "name": "Gait Trainer Treadmill (GTT)",
          "type": "OTHER"
        },
        {
          "name": "Standard psychiatric scales SCID-I, YBOCS and SCI-OBS-lifetime and cognitive scales MMSE and MOCA",
          "type": "OTHER"
        },
        {
          "name": "iMobility",
          "type": "DEVICE"
        },
        {
          "name": "QMAT",
          "type": "DEVICE"
        },
        {
          "name": "Treadmill Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Arm Intellistretch Device",
          "type": "DEVICE"
        },
        {
          "name": "Transcranial Sonography (TCS)",
          "type": "PROCEDURE"
        },
        {
          "name": "Behavioral tasks",
          "type": "OTHER"
        },
        {
          "name": "TMS single/paired pulse",
          "type": "PROCEDURE"
        },
        {
          "name": "MEG",
          "type": "PROCEDURE"
        },
        {
          "name": "EEG",
          "type": "PROCEDURE"
        },
        {
          "name": "MRI techniques",
          "type": "PROCEDURE"
        },
        {
          "name": "Peripheral Nerve Stimulation",
          "type": "PROCEDURE"
        },
        {
          "name": "EMG",
          "type": "PROCEDURE"
        },
        {
          "name": "Trancutaneous spinal direct current stimulation (tsDCS)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE",
        "OTHER",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "National Institute of Neurological Disorders and Stroke (NINDS)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1273,
      "start_date": "2009-12-08",
      "completion_date": "2020-10-09",
      "has_results": false,
      "last_update_posted_date": "2026-10-08",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01019343"
    },
    {
      "nct_id": "NCT01414387",
      "title": "Effects of Cerebral Protection With Filters vs. Flow Reversal on Cerebral Embolization After Carotid Artery Stenting",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Carotid Artery Disease",
        "Stroke"
      ],
      "interventions": [
        {
          "name": "Carotid filter",
          "type": "PROCEDURE"
        },
        {
          "name": "Carotid reversal of flow",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Dallas VA Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2011-10",
      "completion_date": "2016-02-12",
      "has_results": false,
      "last_update_posted_date": "2017-08-02",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01414387"
    },
    {
      "nct_id": "NCT07577713",
      "title": "Prospective Observational Multimodal Neuromonitoring in Adult NSICU Patients",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Subarachnoid Hemorrhage, Aneurysmal",
        "Brain Injuries, Traumatic",
        "Cerebral Hemorrhage",
        "Ischemic Stroke",
        "Delayed Emergence From Anesthesia",
        "Encephalopathy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2026-07",
      "completion_date": "2029-09",
      "has_results": false,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07577713"
    },
    {
      "nct_id": "NCT05829200",
      "title": "Transcranial Doppler(TCD) Evaluation of High Intensity Transient Signals and Carotid Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asymptomatic Carotid Stenosis",
        "Symptomatic Carotid Stenosis",
        "TCD",
        "HITS"
      ],
      "interventions": [
        {
          "name": "Transcranial Doppler (TCD)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ochsner Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2013-07-15",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2023-04-25",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05829200"
    },
    {
      "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": "2026-10-17T18:47:15.299Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07613918"
    },
    {
      "nct_id": "NCT02623218",
      "title": "Translational Research Examining Acupuncture Treatment in Traumatic Brain Injury",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "Acupuncture",
          "type": "DEVICE"
        },
        {
          "name": "Sham Acupuncture",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "AOMA Graduate School of Integrative Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 22,
      "start_date": "2015-11",
      "completion_date": "2016-05",
      "has_results": true,
      "last_update_posted_date": "2020-01-28",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02623218"
    },
    {
      "nct_id": "NCT00282841",
      "title": "Visualization of Cerebral Arteries Using Contrast-Enhanced Transcranial Ultrasound in Stroke Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke"
      ],
      "interventions": [
        {
          "name": "ultrasound",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2005-03",
      "completion_date": "2007-10",
      "has_results": true,
      "last_update_posted_date": "2019-08-07",
      "last_synced_at": "2026-10-17T18:47:15.299Z",
      "location_count": 2,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00282841"
    }
  ]
}