{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Color+flow+doppler",
    "query": {
      "intervention": "Color flow doppler"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T23:26:26.446Z",
  "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": "NCT01504880",
      "title": "Atrioventricular Valve Regurgitation Vena Contracta; Echo Versus MRI",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Tricuspid Valve Regurgitation, Non-rheumatic",
        "Mitral Valve Regurgitation"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 3,
      "start_date": "2010-06",
      "completion_date": "2019-12-19",
      "has_results": false,
      "last_update_posted_date": "2020-02-06",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01504880"
    },
    {
      "nct_id": "NCT03889678",
      "title": "Color Doppler and Peripheral Venous Catheters",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Extravasation",
        "Vein Injury"
      ],
      "interventions": [
        {
          "name": "Color flow doppler",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Augusta University",
      "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": "2019-03-30",
      "completion_date": "2019-05-31",
      "has_results": false,
      "last_update_posted_date": "2019-06-19",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Augusta, Georgia",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03889678"
    },
    {
      "nct_id": "NCT00935727",
      "title": "Elastographic Imaging of Renal Transplants",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Renal Transplant"
      ],
      "interventions": [
        {
          "name": "Elastographic imaging",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2006-06",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2009-07-09",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00935727"
    },
    {
      "nct_id": "NCT03352882",
      "title": "Impact of Transjugular Intrahepatic Portosystemic Shunts on Liver Stiffness",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Portal Hypertension",
        "Liver Fibroses"
      ],
      "interventions": [
        {
          "name": "Ultrasound",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 1,
      "start_date": "2016-08",
      "completion_date": "2019-04-03",
      "has_results": true,
      "last_update_posted_date": "2019-10-01",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03352882"
    },
    {
      "nct_id": "NCT02625428",
      "title": "IRB 14-009240, Does CEUS Positively Influence Selection of Biopsy Sites When Evaluating Transplant Kidneys?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Transplantation, Kidney"
      ],
      "interventions": [
        {
          "name": "Optison",
          "type": "DRUG"
        },
        {
          "name": "Ultrasound (US)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Contrast-enhanced ultrasound (CEUS)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2015-11",
      "completion_date": "2019-12",
      "has_results": true,
      "last_update_posted_date": "2020-03-02",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02625428"
    },
    {
      "nct_id": "NCT00239525",
      "title": "3-D Transcranial Ultrasound Analysis Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cerebrovascular Accident",
        "Intracranial Hypertension"
      ],
      "interventions": [
        {
          "name": "3-D ultrasound scanner",
          "type": "DEVICE"
        },
        {
          "name": "Perflutren Protein-Type A Microspheres for injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 28,
      "start_date": "2006-05",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2014-04-11",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00239525"
    },
    {
      "nct_id": "NCT04632485",
      "title": "Early Detection of Vascular Dysfunction Using Biomarkers From Lagrangian Carotid Strain Imaging",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy",
        "Carotid Artery Diseases"
      ],
      "interventions": [
        {
          "name": "Ultrasound imaging",
          "type": "DEVICE"
        },
        {
          "name": "Magnetic Resonance Imaging (MRI)",
          "type": "DEVICE"
        },
        {
          "name": "Neurocognitive testing",
          "type": "OTHER"
        },
        {
          "name": "Transcranial Doppler (TCD)",
          "type": "DEVICE"
        },
        {
          "name": "Pulse Wave Doppler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 217,
      "start_date": "2021-09-09",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-07-02",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04632485"
    },
    {
      "nct_id": "NCT06060925",
      "title": "Imaging Biomarkers for Myofascial Pain",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Myofascial Pain Syndrome",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Ultrasound imaging",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Bioimpedance spectroscopy",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Electromyography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Physical examination",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "George Mason University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 96,
      "start_date": "2023-01-01",
      "completion_date": "2025-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-02",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Fairfax, Virginia",
      "locations": [
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06060925"
    },
    {
      "nct_id": "NCT03908879",
      "title": "Intraosseous Catheter Confirmation Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Critical Illness"
      ],
      "interventions": [
        {
          "name": "Standard intraosseous (IO) catheter confirmation procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Color flow Doppler intraosseous (IO) catheter confirmation procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Pressure transduction intraosseous (IO) catheter confirmation procedure",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2019-07-23",
      "completion_date": "2022-05-01",
      "has_results": false,
      "last_update_posted_date": "2023-09-08",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Newark, New Jersey",
      "locations": [
        {
          "city": "Newark",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03908879"
    },
    {
      "nct_id": "NCT06021782",
      "title": "Characterization of the Pudendal Nerve with Transvaginal Ultrasonography",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Anesthesia"
      ],
      "interventions": [
        {
          "name": "All subjects-Observation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 24,
      "start_date": "2021-05-13",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-01-29",
      "last_synced_at": "2026-09-08T23:26:26.446Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06021782"
    }
  ]
}