{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=QT+Ultrasound",
    "query": {
      "intervention": "QT Ultrasound"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 7,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T04:00:45.717Z",
  "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": "NCT03470051",
      "title": "Case Collection Study in the Evaluation of Doubling Time Rates in Non-Suspicious Breast Masses Using QT Ultrasound Technology",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Fibroadenoma"
      ],
      "interventions": [
        {
          "name": "QT Ultrasound",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "QT Ultrasound LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 27,
      "start_date": "2018-02-26",
      "completion_date": "2020-02-11",
      "has_results": false,
      "last_update_posted_date": "2021-03-18",
      "last_synced_at": "2026-09-12T04:00:45.717Z",
      "location_count": 2,
      "location_summary": "Long Beach, California • Novato, California",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Novato",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03470051"
    },
    {
      "nct_id": "NCT03052166",
      "title": "Case Collection Study to Determine the Accuracy, Call Back and Cancer Detection Rates of QT Ultrasound in Breast Imaging",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast"
      ],
      "interventions": [
        {
          "name": "QT Ultrasound scan",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "QT Ultrasound LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 755,
      "start_date": "2017-04-18",
      "completion_date": "2020-01-01",
      "has_results": false,
      "last_update_posted_date": "2021-03-18",
      "last_synced_at": "2026-09-12T04:00:45.717Z",
      "location_count": 2,
      "location_summary": "Long Beach, California • Novato, California",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Novato",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03052166"
    },
    {
      "nct_id": "NCT02133417",
      "title": "Non-Inferiority Quantitative Transmission Ultrasound Case Collection Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mass Lesion"
      ],
      "interventions": [
        {
          "name": "Quantitative Transmission Ultrasound",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "QT Ultrasound LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "25 Years and older · Female only"
      },
      "enrollment_count": 287,
      "start_date": "2014-07",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2018-05-09",
      "last_synced_at": "2026-09-12T04:00:45.717Z",
      "location_count": 2,
      "location_summary": "Washington D.C., District of Columbia • Rochester, New York",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02133417"
    },
    {
      "nct_id": "NCT02948361",
      "title": "Clinical PRoduct DevelOpment StudyinG the QT Ultrasound® BReast ScannEr With Volunteer SubjectS",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Volunteer Subjects"
      ],
      "interventions": [
        {
          "name": "QT Ultrasound Breast Scan",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "QT Ultrasound LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 1500,
      "start_date": "2016-08",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-09-12T04:00:45.717Z",
      "location_count": 1,
      "location_summary": "Novato, California",
      "locations": [
        {
          "city": "Novato",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02948361"
    },
    {
      "nct_id": "NCT04057391",
      "title": "Understanding Patient Experience and Preferences for the QT Scanner Compared to Mammography",
      "overall_status": "SUSPENDED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer Screening"
      ],
      "interventions": [
        {
          "name": "QT Scanner",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "QT Ultrasound LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 20,
      "start_date": "2019-08-06",
      "completion_date": "2022-12-30",
      "has_results": false,
      "last_update_posted_date": "2022-04-27",
      "last_synced_at": "2026-09-12T04:00:45.717Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04057391"
    },
    {
      "nct_id": "NCT07216274",
      "title": "Quantitative Transmission Imaging Compared With MRI as Supplemental Screening for High Lifetime Risk of Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "QT Ultrasound Breast Scanner",
          "type": "DEVICE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "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": 26,
      "start_date": "2025-07-31",
      "completion_date": "2025-10-20",
      "has_results": true,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-09-12T04:00:45.717Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07216274"
    },
    {
      "nct_id": "NCT01903564",
      "title": "Fetal and Neonatal Magnetophysiology",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Fetal Arrhythmia",
        "Abnormality in Fetal Heart Rate or Rhythm",
        "Long QT Syndrome"
      ],
      "interventions": [
        {
          "name": "magnetocardiography",
          "type": "DEVICE"
        },
        {
          "name": "postnatal ECG",
          "type": "DEVICE"
        },
        {
          "name": "fetal echocardiography",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 39,
      "start_date": "2014-03",
      "completion_date": "2018-06",
      "has_results": true,
      "last_update_posted_date": "2019-05-29",
      "last_synced_at": "2026-09-12T04:00:45.717Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01903564"
    }
  ]
}