{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transvaginal+ultrasound",
    "query": {
      "intervention": "Transvaginal ultrasound"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 60,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transvaginal+ultrasound&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-28T07:33:25.060Z",
  "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": "NCT01788839",
      "title": "Longitudinal Sexual and Reproductive Health Study of Women With Breast Cancer and Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Lymphoma",
        "Hodgkin's Lymphoma"
      ],
      "interventions": [
        {
          "name": "surveys",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood draw",
          "type": "OTHER"
        },
        {
          "name": "Transvaginal ultrasounds",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "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": 475,
      "start_date": "2013-02",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-09-28T07:33:25.060Z",
      "location_count": 7,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01788839"
    },
    {
      "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": "2026-09-28T07:33:25.060Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03251729"
    },
    {
      "nct_id": "NCT07280312",
      "title": "Ultrasound Microvessel Imaging for the Evaluation of Ovarian and Adnexal Lesions",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Female Reproductive System Adnexal Neoplasm",
        "Ovarian Carcinoma",
        "Female Reproductive System Neoplasm",
        "Ovarian Neoplasms",
        "Adnexal Lesion",
        "Ovarian Lesion"
      ],
      "interventions": [
        {
          "name": "Transvaginal Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "Ultrasound Microvessel Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Mayo Clinic",
      "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": 40,
      "start_date": "2026-01-22",
      "completion_date": "2029-12-17",
      "has_results": false,
      "last_update_posted_date": "2026-02-03",
      "last_synced_at": "2026-09-28T07:33:25.060Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07280312"
    },
    {
      "nct_id": "NCT02024672",
      "title": "Monitoring With Ultrasound Imaging of Intrauterine Device (IUD) Position Placed Immediately After Giving Birth",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Contraception",
        "Postpartum"
      ],
      "interventions": [
        {
          "name": "Immediate postpartum placement of IUD",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 96,
      "start_date": "2013-12",
      "completion_date": "2017-09-15",
      "has_results": false,
      "last_update_posted_date": "2017-10-11",
      "last_synced_at": "2026-09-28T07:33:25.060Z",
      "location_count": 2,
      "location_summary": "Elmhurst, New York • New York, New York",
      "locations": [
        {
          "city": "Elmhurst",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02024672"
    },
    {
      "nct_id": "NCT00539162",
      "title": "Use of CA125 and Complementary Biomarkers for the Early Detection of Ovarian Cancer in Low Risk Women",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "Questionnaire",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "74 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 74 Years · Female only"
      },
      "enrollment_count": 8000,
      "start_date": "2001-07-02",
      "completion_date": "2028-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-09-28T07:33:25.060Z",
      "location_count": 12,
      "location_summary": "Miami, Florida • Des Moines, Iowa • Minneapolis, Minnesota + 8 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Morristown",
          "state": "New Jersey"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00539162"
    },
    {
      "nct_id": "NCT01292733",
      "title": "Cancer Screening Program for Women at High Risk for Developing Ovarian Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Ovarian Diseases",
        "Ovarian Neoplasms"
      ],
      "interventions": [
        {
          "name": "Laboratory Tumor Marker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Transvaginal Ultrasound",
          "type": "OTHER"
        },
        {
          "name": "Health Status Questionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Swedish Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "30 Years and older · Female only"
      },
      "enrollment_count": 534,
      "start_date": "2009-08",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-01-20",
      "last_synced_at": "2026-09-28T07:33:25.060Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01292733"
    },
    {
      "nct_id": "NCT03262818",
      "title": "Transvaginal Ultrasound and Photoacoustic Imaging of the Ovary",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Oophorectomy"
      ],
      "interventions": [
        {
          "name": "Transvaginal ultrasound",
          "type": "DEVICE"
        },
        {
          "name": "Ultrasound/Photoacoustic imaging",
          "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": 40,
      "start_date": "2017-02-01",
      "completion_date": "2018-11-20",
      "has_results": false,
      "last_update_posted_date": "2018-11-23",
      "last_synced_at": "2026-09-28T07:33:25.060Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03262818"
    },
    {
      "nct_id": "NCT05246579",
      "title": "Prospective Evaluation of Pathways for Preterm Birth",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Preterm Birth",
        "Cervix; Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "John O'Brien, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 240,
      "start_date": "2022-02-04",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-09-28T07:33:25.060Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05246579"
    },
    {
      "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": "2026-09-28T07:33:25.060Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04178018"
    },
    {
      "nct_id": "NCT04251052",
      "title": "A Study to Compare Two Surgical Procedures in Individuals With BRCA1 Mutations to Assess Reduced Risk of Ovarian Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ovarian Carcinoma"
      ],
      "interventions": [
        {
          "name": "Bilateral Salpingectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Bilateral Salpingectomy with Oophorectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Transvaginal Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "Ultrasound Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "NRG Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "35 Years to 50 Years · Female only"
      },
      "enrollment_count": 1956,
      "start_date": "2020-09-01",
      "completion_date": "2047-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-07",
      "last_synced_at": "2026-09-28T07:33:25.060Z",
      "location_count": 564,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Goodyear, Arizona + 372 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04251052"
    }
  ]
}