{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transvaginal+ultrasound&page=3",
    "query": {
      "intervention": "Transvaginal ultrasound",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 60,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transvaginal+ultrasound&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Transvaginal+ultrasound&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T04:22:04.235Z",
  "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": "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": "2026-10-02",
      "last_synced_at": "2026-10-10T04:22:04.235Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006421"
    },
    {
      "nct_id": "NCT05004870",
      "title": "Home Examinations Researching and Understanding Submucosal Evaluations",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fertility Issues"
      ],
      "interventions": [
        {
          "name": "Transvaginal ultrasound performed by a woman herself (with HCP supervision via telemedicine)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Turtle Health, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 49 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2021-12-16",
      "completion_date": "2021-12-17",
      "has_results": false,
      "last_update_posted_date": "2022-04-29",
      "last_synced_at": "2026-10-10T04:22:04.235Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05004870"
    },
    {
      "nct_id": "NCT00033358",
      "title": "Hormone Therapy in Preventing Endometrial Cancer in Patients With a Genetic Risk For Hereditary Nonpolyposis Colon Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Endometrial Cancer"
      ],
      "interventions": [
        {
          "name": "medroxyprogesterone",
          "type": "DRUG"
        },
        {
          "name": "ethinyl estradiol",
          "type": "DRUG"
        },
        {
          "name": "norgestrel",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 50 Years · Female only"
      },
      "enrollment_count": 52,
      "start_date": "2002-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-05-03",
      "last_synced_at": "2026-10-10T04:22:04.235Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00033358"
    },
    {
      "nct_id": "NCT03178695",
      "title": "Inovium Ovarian Rejuvenation Trials",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Perimenopausal Disorder",
        "Menopause",
        "Menopause, Premature",
        "Menopause Related Conditions",
        "Menopause Premature Symptomatic",
        "Menopause Premature Asymptomatic",
        "Premature Ovarian Failure",
        "Premature Ovarian Failure, Familial",
        "Premature Ovarian Failure 2A",
        "Premature Ovarian Failure 3",
        "Premature Ovarian Failure 4",
        "Premature Ovarian Failure 1",
        "Premature Ovarian Failure 5",
        "Premature Ovarian Failure 6",
        "Premature Ovarian Failure 7",
        "Premature Ovarian Failure 9",
        "Premature Ovarian Failure 8",
        "Infertility",
        "Infertility, Female",
        "Infertility Unexplained"
      ],
      "interventions": [
        {
          "name": "Autologous PRP injection into human ovarian tissue",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ascendance Biomedical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "35 Years and older · Female only"
      },
      "enrollment_count": 200,
      "start_date": "2017-06-01",
      "completion_date": "2018-05-01",
      "has_results": false,
      "last_update_posted_date": "2020-04-20",
      "last_synced_at": "2026-10-10T04:22:04.235Z",
      "location_count": 1,
      "location_summary": "Carlsbad, California",
      "locations": [
        {
          "city": "Carlsbad",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03178695"
    },
    {
      "nct_id": "NCT03047551",
      "title": "Transabdominal and Transvaginal Sonography in Medical Abortion",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Abortion Early"
      ],
      "interventions": [
        {
          "name": "Transabdominal sonography",
          "type": "PROCEDURE"
        },
        {
          "name": "Transvaginal sonography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Columbia University",
      "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": 634,
      "start_date": "2016-07",
      "completion_date": "2018-06",
      "has_results": true,
      "last_update_posted_date": "2019-09-30",
      "last_synced_at": "2026-10-10T04:22:04.235Z",
      "location_count": 2,
      "location_summary": "Morristown, New Jersey • New York, New York",
      "locations": [
        {
          "city": "Morristown",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03047551"
    },
    {
      "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": "2026-10-10T04:22:04.235Z",
      "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"
    },
    {
      "nct_id": "NCT06365905",
      "title": "Non-Invasive Identification of Endometrial Cancer/Endometrial Atypical Hyperplasia With an AI-Based Classifier Applied to Transvaginal Ultrasound in Patients With Post-Menopausal Bleeding",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Endometrial Carcinoma"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "55 Years and older · Female only"
      },
      "enrollment_count": 300,
      "start_date": "2024-03-27",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-10",
      "last_synced_at": "2026-10-10T04:22:04.235Z",
      "location_count": 3,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06365905"
    },
    {
      "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": "2026-10-10T04:22:04.235Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07280312"
    },
    {
      "nct_id": "NCT06518174",
      "title": "A Novel Imaging Modality to Evaluate Radiation-Induced Uterine Injury",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Uterine Injury"
      ],
      "interventions": [
        {
          "name": "MRI, SWE, and US evaluation",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 8,
      "start_date": "2025-02-25",
      "completion_date": "2026-06-03",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-10-10T04:22:04.235Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06518174"
    },
    {
      "nct_id": "NCT01121640",
      "title": "A Trial Using Novel Markers to Predict Malignancy in Elevated-Risk Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Epithelial Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "CA125 assay on Abbott Architect i1000SR platform",
          "type": "PROCEDURE"
        },
        {
          "name": "HE4 assay on Architect i1000SR platform",
          "type": "PROCEDURE"
        },
        {
          "name": "Transvaginal Ultrasound",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 80 Years · Female only"
      },
      "enrollment_count": 854,
      "start_date": "2009-11",
      "completion_date": "2015-05-07",
      "has_results": false,
      "last_update_posted_date": "2018-12-13",
      "last_synced_at": "2026-10-10T04:22:04.235Z",
      "location_count": 5,
      "location_summary": "Duarte, California • Los Angeles, California • Stanford, California + 2 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01121640"
    }
  ]
}