{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Trans-vaginal+ultrasound",
    "query": {
      "intervention": "Trans-vaginal ultrasound"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 56,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Trans-vaginal+ultrasound&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-28T20:07:27.417Z",
  "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": "NCT02890914",
      "title": "Transvaginal Ultrasound Training for Obstetrics and Gynecology Residents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ovarian Cysts"
      ],
      "interventions": [
        {
          "name": "Transvaginal Ultrasound Educational DVD",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 57,
      "start_date": "2012-09",
      "completion_date": "2015-06",
      "has_results": false,
      "last_update_posted_date": "2016-09-08",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 3,
      "location_summary": "Philadelphia, Pennsylvania • West Reading, Pennsylvania • Wynnewood, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "West Reading",
          "state": "Pennsylvania"
        },
        {
          "city": "Wynnewood",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02890914"
    },
    {
      "nct_id": "NCT03251729",
      "title": "Cerclage On LOw Risk Singletons: Cervical Cerclage for Prevention of Spontaneous Preterm Birth in Low Risk Singleton Pregnancies With Short Cervix",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Premature Birth"
      ],
      "interventions": [
        {
          "name": "Cervical cerclage",
          "type": "PROCEDURE"
        },
        {
          "name": "Vaginal progesterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 93,
      "start_date": "2017-09-22",
      "completion_date": "2024-02-20",
      "has_results": false,
      "last_update_posted_date": "2024-04-19",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03251729"
    },
    {
      "nct_id": "NCT00371046",
      "title": "Does Fetal Fibronectin and Ultrasound Cervical Length Help in the Evaluation of Women With Suspected Preterm Labor?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Preterm Birth"
      ],
      "interventions": [
        {
          "name": "Transvaginal ultrasound cervical length",
          "type": "PROCEDURE"
        },
        {
          "name": "Cervicovaginal fetal fibronectin",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 100,
      "start_date": "2003-10",
      "completion_date": "2006-12",
      "has_results": false,
      "last_update_posted_date": "2007-03-02",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00371046"
    },
    {
      "nct_id": "NCT01327105",
      "title": "Essure Transvaginal Ultrasound (TVU) Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Contraceptive Usage"
      ],
      "interventions": [
        {
          "name": "TVU",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "44 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 44 Years · Female only"
      },
      "enrollment_count": 547,
      "start_date": "2011-05-17",
      "completion_date": "2023-07-04",
      "has_results": false,
      "last_update_posted_date": "2023-08-03",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 13,
      "location_summary": "Chandler, Arizona • Glendale, Arizona • Phoenix, Arizona + 10 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Arvada",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01327105"
    },
    {
      "nct_id": "NCT03340688",
      "title": "Cerclage for Twins With Short Cervical Length ≤ 15mm",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Twin Pregnancy With Antenatal Problem",
        "Preterm Birth",
        "Short Cervix"
      ],
      "interventions": [
        {
          "name": "Cervical cerclage",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 200,
      "start_date": "2017-06-22",
      "completion_date": "2025-06",
      "has_results": false,
      "last_update_posted_date": "2020-04-27",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 3,
      "location_summary": "Washington D.C., District of Columbia • Philadelphia, Pennsylvania • Austin, Texas",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03340688"
    },
    {
      "nct_id": "NCT05977621",
      "title": "Trans-Rectal Ultrasound of the Female Pelvis for Real-Time MRI-US Fusion Based Needle Tracking",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Uterine Cancer"
      ],
      "interventions": [
        {
          "name": "Transrectal ultrasound (TRUS)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke 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": 17,
      "start_date": "2024-02-07",
      "completion_date": "2027-03",
      "has_results": false,
      "last_update_posted_date": "2026-03-06",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05977621"
    },
    {
      "nct_id": "NCT03833284",
      "title": "Transvaginal Ultrasound: Preterm Birth Prevention in Appalachia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Preterm Birth"
      ],
      "interventions": [
        {
          "name": "Participant Barriers to TVU Screening",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Provider Barriers to TVU Screening",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Niraj Chavan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 56,
      "start_date": "2019-06-03",
      "completion_date": "2021-10-29",
      "has_results": false,
      "last_update_posted_date": "2022-01-05",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03833284"
    },
    {
      "nct_id": "NCT00006421",
      "title": "Breast Imaging Studies in Women at High Genetic Risk of Breast Cancer: Annual Follow-Up Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "2-Fluorodeoxyglucose",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 100 Years · Female only"
      },
      "enrollment_count": 200,
      "start_date": "2000-10-25",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-09-28",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006421"
    },
    {
      "nct_id": "NCT04178018",
      "title": "Transvaginal Ultrasound and Photoacoustic Imaging of Ovary",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ovary; Anomaly"
      ],
      "interventions": [
        {
          "name": "Photoacoustic imaging",
          "type": "DEVICE"
        },
        {
          "name": "Ultrasound",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Washington University School of Medicine",
      "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": 185,
      "start_date": "2020-02-09",
      "completion_date": "2026-03-09",
      "has_results": false,
      "last_update_posted_date": "2026-05-08",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04178018"
    },
    {
      "nct_id": "NCT02584088",
      "title": "Ultrasound Appearance of the Endometrium Post Radio-Frequency Ablation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Menorrhagia"
      ],
      "interventions": [
        {
          "name": "Ultrasound",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "TriHealth Inc.",
      "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": 80,
      "start_date": "2016-10-11",
      "completion_date": "2021-11",
      "has_results": false,
      "last_update_posted_date": "2022-12-02",
      "last_synced_at": "2026-09-28T20:07:27.417Z",
      "location_count": 2,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02584088"
    }
  ]
}