{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estradiol+vaginal+ring&page=2",
    "query": {
      "intervention": "Estradiol vaginal ring",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 61,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estradiol+vaginal+ring&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estradiol+vaginal+ring&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T13:22:20.988Z",
  "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": "NCT04301934",
      "title": "Fractional CO2 Vaginal LASER Therapy for Recurrent Urinary Tract Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Urinary Tract Infections"
      ],
      "interventions": [
        {
          "name": "Mona Lisa Touch",
          "type": "DEVICE"
        },
        {
          "name": "Conjugated estrogen",
          "type": "DRUG"
        },
        {
          "name": "Estradiol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "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": 12,
      "start_date": "2020-06-01",
      "completion_date": "2023-04-30",
      "has_results": true,
      "last_update_posted_date": "2024-03-26",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04301934"
    },
    {
      "nct_id": "NCT00908570",
      "title": "Topical Estriol for Vaginal Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Vaginal Health"
      ],
      "interventions": [
        {
          "name": "estriol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gynuity Health Projects",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 104,
      "start_date": "2009-06",
      "completion_date": "2011-03",
      "has_results": false,
      "last_update_posted_date": "2011-03-04",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • Chicago, Illinois",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00908570"
    },
    {
      "nct_id": "NCT02215395",
      "title": "An Open-label Study to Evaluate the Effects of Concurrent Administration of Vaginal Antimycotic Medication Miconazole Nitrate on the Pharmacokinetics of Nestorone and Ethinyl Estradiol Delivered by a Contraceptive Vaginal Ring in Normal Ovulating Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Antifungal Drug Adverse Reaction"
      ],
      "interventions": [
        {
          "name": "NES/EE CVR",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Population Council",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 35 Years · Female only"
      },
      "enrollment_count": 45,
      "start_date": "2014-03",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2017-08-15",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 1,
      "location_summary": "Springfield, Missouri",
      "locations": [
        {
          "city": "Springfield",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02215395"
    },
    {
      "nct_id": "NCT06851754",
      "title": "Hormone Replacement Therapy in Adolescents With Premature Ovarian Insufficiency",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Premature Ovarian Insufficiency"
      ],
      "interventions": [
        {
          "name": "Progesterone",
          "type": "DRUG"
        },
        {
          "name": "Estrogen Patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "19 Years",
        "sex": "FEMALE",
        "summary": "11 Years to 19 Years · Female only"
      },
      "enrollment_count": 185,
      "start_date": "2025-07-17",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-18",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06851754"
    },
    {
      "nct_id": "NCT00108849",
      "title": "Vagifem Low Dose for Postmenopausal Atrophic Vaginitis Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Menopause",
        "Postmenopausal Vaginal Atrophy"
      ],
      "interventions": [
        {
          "name": "estradiol, 10 mcg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novo Nordisk A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "45 Years and older · Female only"
      },
      "enrollment_count": 309,
      "start_date": "2005-03",
      "completion_date": "2007-05",
      "has_results": false,
      "last_update_posted_date": "2017-02-08",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 51,
      "location_summary": "Mobile, Alabama • Montgomery, Alabama • Phoenix, Arizona + 45 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Carmichael",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00108849"
    },
    {
      "nct_id": "NCT04257500",
      "title": "Does Vaginal Delivery of Combined Hormonal Contraception Affect the Risk of Metabolic Syndrome in Overweight/Obese Women With PCOS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Polycystic Ovary Syndrome"
      ],
      "interventions": [
        {
          "name": "Etonogestrel/ethinyl estradiol vaginal ring",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Andrea Roe, MD, MPH",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 22,
      "start_date": "2020-09-03",
      "completion_date": "2025-08-22",
      "has_results": false,
      "last_update_posted_date": "2026-09-28",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04257500"
    },
    {
      "nct_id": "NCT04544475",
      "title": "A Randomized, Single Center Pilot Study Comparing Hyaluronic Acid to Vaginal Estrogen for Treatment of Genitourinary Syndrome of Menopause",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Genitourinary Syndrome of Menopause (GSM)"
      ],
      "interventions": [
        {
          "name": "Revaree",
          "type": "DEVICE"
        },
        {
          "name": "Estrace",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 100 Years · Female only"
      },
      "enrollment_count": 49,
      "start_date": "2021-09-01",
      "completion_date": "2022-10-03",
      "has_results": true,
      "last_update_posted_date": "2023-10-13",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04544475"
    },
    {
      "nct_id": "NCT01779947",
      "title": "Study to Evaluate the Safety and Bioequivalence of Estradiol Vaginal Inserts, 10 mcg and Vagifem® 10 mcg and Compare to Placebo",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Atrophic Vaginitis Due to Menopause"
      ],
      "interventions": [
        {
          "name": "Estradiol Vaginal Tablets 10 mcg",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amneal Pharmaceuticals, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "30 Years to 75 Years · Female only"
      },
      "enrollment_count": 519,
      "start_date": "2012-03",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2014-06-26",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 25,
      "location_summary": "Huntsville, Alabama • Montgomery, Alabama • San Diego, California + 19 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01779947"
    },
    {
      "nct_id": "NCT02253173",
      "title": "Estradiol Vaginal Softgel Capsules in Treating Symptoms of Vulvar and Vaginal Atrophy in Postmenopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Vulvovaginal Atrophy",
        "Menopause",
        "Dyspareunia",
        "Painful Intercourse"
      ],
      "interventions": [
        {
          "name": "Estradiol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "TherapeuticsMD",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 75 Years · Female only"
      },
      "enrollment_count": 764,
      "start_date": "2014-09",
      "completion_date": "2015-10",
      "has_results": true,
      "last_update_posted_date": "2017-05-25",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 100,
      "location_summary": "Huntsville, Alabama • Montgomery, Alabama • Mesa, Arizona + 85 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Montgomery",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02253173"
    },
    {
      "nct_id": "NCT07526948",
      "title": "Vaginal Estradiol vs Moisturizer to Improve Postmenopausal Vaginal Aging Symptoms and the Microbiome in Women Living With HIV",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Menopausal Complaints",
        "Vaginal Atrophy",
        "Genitourinary Symptoms",
        "HIV (Human Immunodeficiency Virus)",
        "Menopause Related Conditions",
        "Vaginitis",
        "Perimenopause"
      ],
      "interventions": [
        {
          "name": "Vaginal estradiol tablets",
          "type": "DRUG"
        },
        {
          "name": "Vaginal moisturizer",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Albert Einstein College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 70 Years · Female only"
      },
      "enrollment_count": 62,
      "start_date": "2026-09",
      "completion_date": "2029-10-14",
      "has_results": false,
      "last_update_posted_date": "2026-07-28",
      "last_synced_at": "2026-10-01T13:22:20.988Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07526948"
    }
  ]
}