{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=TVS&page=2",
    "query": {
      "intervention": "TVS",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=TVS&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-16T10:19:32.006Z",
  "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": "NCT05038891",
      "title": "Self-Obtained Ultrasound Scans for Measurement of Cervical Dilation and Effacement in Labor",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cervical Dilation"
      ],
      "interventions": [
        {
          "name": "Digital Cervical Exam",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Transperineal Ultrasound",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Transvaginal Ultrasound",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "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": "2021-09-13",
      "completion_date": "2022-12-01",
      "has_results": false,
      "last_update_posted_date": "2024-04-11",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 2,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05038891"
    },
    {
      "nct_id": "NCT03120728",
      "title": "Application for the Etonogestrel/Ethinyl Estradiol Ring",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Emergency Contraception",
        "Healthy, Reproductive Age Women"
      ],
      "interventions": [
        {
          "name": "Etonogestrel/ethinyl estradiol contraceptive vaginal ring",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 39 Years · Female only"
      },
      "enrollment_count": 36,
      "start_date": "2017-07-10",
      "completion_date": "2018-07-01",
      "has_results": false,
      "last_update_posted_date": "2017-07-18",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03120728"
    },
    {
      "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": "2026-09-16T10:19:32.006Z",
      "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": "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": "2026-08-28",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006421"
    },
    {
      "nct_id": "NCT03529981",
      "title": "Wearable Emotion Prosthetics for Post Traumatic Stress Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Behavior"
      ],
      "interventions": [
        {
          "name": "Tuned Vibroacoustic Stimulation (TVS)",
          "type": "OTHER"
        },
        {
          "name": "no active intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "58 Years",
        "sex": "ALL",
        "summary": "18 Years to 58 Years"
      },
      "enrollment_count": 16,
      "start_date": "2018-04-09",
      "completion_date": "2021-12-18",
      "has_results": false,
      "last_update_posted_date": "2022-01-28",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03529981"
    },
    {
      "nct_id": "NCT03395756",
      "title": "Depot Medroxyprogesterone Acetate as Emergency Contraception",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Emergency Contraception",
        "Contraception"
      ],
      "interventions": [
        {
          "name": "Depot-Medroxyprogestereone Acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 39 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2018-08-31",
      "completion_date": "2020-10-30",
      "has_results": false,
      "last_update_posted_date": "2020-11-05",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03395756"
    },
    {
      "nct_id": "NCT06206746",
      "title": "The REBALANCE Study - a Prospective, Multicenter, Randomized, Pivotal Study of the May Health System",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Polycystic Ovary Syndrome",
        "Infertility, Female"
      ],
      "interventions": [
        {
          "name": "May Health System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "May Health",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 93,
      "start_date": "2024-03-25",
      "completion_date": "2026-09-03",
      "has_results": false,
      "last_update_posted_date": "2026-09-08",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 19,
      "location_summary": "Encino, California • San Francisco, California • Tampa, Florida + 16 more",
      "locations": [
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Winter Park",
          "state": "Florida"
        },
        {
          "city": "Springfield",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06206746"
    },
    {
      "nct_id": "NCT02530606",
      "title": "Photoacoustic Imaging in Detecting Ovarian or Fallopian Tube Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fallopian Tube Carcinoma",
        "Ovarian Carcinoma"
      ],
      "interventions": [
        {
          "name": "Photoacoustic Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 80 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2016-09",
      "completion_date": "2018-11",
      "has_results": false,
      "last_update_posted_date": "2018-11-28",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02530606"
    },
    {
      "nct_id": "NCT05397912",
      "title": "Uterine Elastography: a Potential Predictor of Embryo Transfer Success",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infertility, Female"
      ],
      "interventions": [
        {
          "name": "Uterine Elastography",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Reproductive Medicine Associates of New Jersey",
      "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": 162,
      "start_date": "2022-06-15",
      "completion_date": "2023-09-01",
      "has_results": false,
      "last_update_posted_date": "2025-02-07",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 1,
      "location_summary": "Basking Ridge, New Jersey",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05397912"
    },
    {
      "nct_id": "NCT03380156",
      "title": "Effect of Transcutaneous Vagal Stimulation (TVS) on Endothelial Function and Arterial Stiffness in HFrEF",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure With Reduced Ejection Fraction",
        "Endothelial Dysfunction"
      ],
      "interventions": [
        {
          "name": "TVS",
          "type": "DEVICE"
        },
        {
          "name": "Sham TVS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 50,
      "start_date": "2017-12-04",
      "completion_date": "2020-05-30",
      "has_results": false,
      "last_update_posted_date": "2021-01-14",
      "last_synced_at": "2026-09-16T10:19:32.006Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03380156"
    }
  ]
}