{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Duplex+ultrasound&page=2",
    "query": {
      "intervention": "Duplex ultrasound",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 34,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Duplex+ultrasound&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Duplex+ultrasound&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T14:21:00.588Z",
  "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": "NCT00417586",
      "title": "Cost-Effectiveness of a Specialized Ultrasound Instrument to Diagnose Carotid Stenosis as a Way to Reduce the Risk of Stroke",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Carotid Stenosis",
        "Cerebrovascular Accident"
      ],
      "interventions": [
        {
          "name": "Specialized Doppler Ultrasound Instrument",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "DVX, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 984,
      "start_date": "2007-06",
      "completion_date": "2010-11",
      "has_results": false,
      "last_update_posted_date": "2013-12-11",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 1,
      "location_summary": "Princeton, New Jersey",
      "locations": [
        {
          "city": "Princeton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00417586"
    },
    {
      "nct_id": "NCT05706181",
      "title": "Heat Therapy, Functional Capacity, and Vascular Health in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Aging Well",
        "Walking, Difficulty",
        "Hyperemia"
      ],
      "interventions": [
        {
          "name": "Home-based leg heat therapy",
          "type": "OTHER"
        },
        {
          "name": "Home-based sham therapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Texas Health Science Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "55 Years to 80 Years"
      },
      "enrollment_count": 21,
      "start_date": "2022-11-03",
      "completion_date": "2025-07-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05706181"
    },
    {
      "nct_id": "NCT02978950",
      "title": "SToP: Venous Thromboembolism Screening in the Trauma Population",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Venous Thromboembolism",
        "Deep Vein Thrombosis",
        "Trauma, Multiple"
      ],
      "interventions": [
        {
          "name": "Duplex ultrasound surveillance",
          "type": "OTHER"
        },
        {
          "name": "No ultrasound surveillance",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Intermountain Health Care, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2000,
      "start_date": "2017-03-20",
      "completion_date": "2020-06",
      "has_results": false,
      "last_update_posted_date": "2018-11-29",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 1,
      "location_summary": "Murray, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02978950"
    },
    {
      "nct_id": "NCT01319474",
      "title": "Whole-leg Ultrasound in Pregnant Patients",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Deep Vein Thrombosis"
      ],
      "interventions": [
        {
          "name": "Whole-leg compression ultrasound",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Intermountain Health Care, Inc.",
      "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": 268,
      "start_date": "2011-02",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2019-08-07",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 1,
      "location_summary": "Murray, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01319474"
    },
    {
      "nct_id": "NCT01427166",
      "title": "Non-Invasive Imaging for Cording in Breast Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Non invasive venous ultrasound",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "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": 5,
      "start_date": "2011-08",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2016-03-16",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01427166"
    },
    {
      "nct_id": "NCT06315023",
      "title": "The Percutaneous Transmural Arterial Bypass -1 Study (Post Approval Registry)",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Peripheral Arterial Disease",
        "Symptomatic Femoropopliteal Lesions"
      ],
      "interventions": [
        {
          "name": "DETOUR System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Endologix",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 450,
      "start_date": "2023-10-06",
      "completion_date": "2032-06-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-12",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 10,
      "location_summary": "Salinas, California • Storrs, Connecticut • Washington D.C., District of Columbia + 7 more",
      "locations": [
        {
          "city": "Salinas",
          "state": "California"
        },
        {
          "city": "Storrs",
          "state": "Connecticut"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Delray Beach",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06315023"
    },
    {
      "nct_id": "NCT01879397",
      "title": "Pilot Study of Ultrasonic Determined Carotid Plaque Composition",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Atherosclerosis"
      ],
      "interventions": [
        {
          "name": "Research Ultrasound Exam",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "D. Geoffrey Vince",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2013-05",
      "completion_date": "2020-02-27",
      "has_results": false,
      "last_update_posted_date": "2020-07-14",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01879397"
    },
    {
      "nct_id": "NCT06190717",
      "title": "Maturation of Arteriovenous Fistula With Automated Sonography Assessments Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "End Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "EchoMark/EchoSure",
          "type": "DEVICE"
        },
        {
          "name": "Standard of Care",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Sonavex, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "18 Years to 84 Years"
      },
      "enrollment_count": 304,
      "start_date": "2024-02-21",
      "completion_date": "2027-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 21,
      "location_summary": "Dothan, Alabama • Phoenix, Arizona • Tucson, Arizona + 17 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06190717"
    },
    {
      "nct_id": "NCT03031457",
      "title": "Microsurgical Breast Reconstruction & VTE",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Reconstruction",
        "Venous Thromboembolism"
      ],
      "interventions": [
        {
          "name": "Duplex ultrasound",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 90 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2017-01-30",
      "completion_date": "2017-12-15",
      "has_results": false,
      "last_update_posted_date": "2018-05-01",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03031457"
    },
    {
      "nct_id": "NCT00333697",
      "title": "Single Comprehensive Ultrasound to Rule Out DVT in High-risk Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Deep Vein Thrombosis"
      ],
      "interventions": [
        {
          "name": "Comprehensive Duplex Ultrasound (diagnostic study)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Intermountain Health Care, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 199,
      "start_date": "2005-11",
      "completion_date": "2011-01",
      "has_results": false,
      "last_update_posted_date": "2011-03-21",
      "last_synced_at": "2026-10-07T14:21:00.588Z",
      "location_count": 2,
      "location_summary": "Murray, Utah • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00333697"
    }
  ]
}