{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estring&page=6",
    "query": {
      "intervention": "Estring",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 887,
    "total_pages": 89,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estring&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estring&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T18:12:43.474Z",
  "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": "NCT00468481",
      "title": "Efficacy and Safety Study for an Oral Contraceptive Containing Folate",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Neural Tube Defects",
        "Contraception",
        "Oral Contraceptives (OC)"
      ],
      "interventions": [
        {
          "name": "Drospirenone/Ethinylestradiol/Methyltetrahydrofolate",
          "type": "DRUG"
        },
        {
          "name": "Drospirenone/Ethinylestradiol (Yaz)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 385,
      "start_date": "2007-04",
      "completion_date": "2008-09",
      "has_results": true,
      "last_update_posted_date": "2014-04-23",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 9,
      "location_summary": "Anaheim, California • San Diego, California • Baltimore, Maryland + 6 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Morrisville",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00468481"
    },
    {
      "nct_id": "NCT03412890",
      "title": "LIBERTY EXTENSION: Efficacy and Safety Extension Study of Relugolix in Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heavy Menstrual Bleeding",
        "Uterine Fibroid"
      ],
      "interventions": [
        {
          "name": "Relugolix",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/norethindrone acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Myovant Sciences GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 477,
      "start_date": "2017-10-19",
      "completion_date": "2021-01-13",
      "has_results": true,
      "last_update_posted_date": "2024-05-09",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 104,
      "location_summary": "Andalusia, Alabama • Birmingham, Alabama • Mobile, Alabama + 84 more",
      "locations": [
        {
          "city": "Andalusia",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03412890"
    },
    {
      "nct_id": "NCT02384746",
      "title": "Phase I Study of the Combination of MLN9708 and Fulvestrant",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "MLN9708",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dartmouth-Hitchcock Medical 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": 9,
      "start_date": "2015-06-02",
      "completion_date": "2018-06-10",
      "has_results": false,
      "last_update_posted_date": "2019-04-29",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02384746"
    },
    {
      "nct_id": "NCT00328497",
      "title": "A Combination Study to Determine the Safety and Efficacy of Panzem NCD With Avastin in Metastatic Carcinoid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Carcinoid Tumor"
      ],
      "interventions": [
        {
          "name": "Panzem (2-methoxyestradiol) NCD, Avastin (Bevacizumab)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "CASI pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 31,
      "start_date": "2006-05",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2010-03-10",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00328497"
    },
    {
      "nct_id": "NCT07032506",
      "title": "Intrauterine Stent Placement Following Hysteroscopic Septum Resection",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Intrauterine Adhesion"
      ],
      "interventions": [
        {
          "name": "Intraoperative placement of an inflated intrauterine pediatric foley catheter",
          "type": "PROCEDURE"
        },
        {
          "name": "No Catheter placement",
          "type": "PROCEDURE"
        },
        {
          "name": "Hormonal Therapy Agent",
          "type": "DRUG"
        },
        {
          "name": "Oral antibiotics",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "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": 320,
      "start_date": "2026-05-14",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 3,
      "location_summary": "Little Rock, Arkansas • New York, New York • Cleveland, Ohio",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07032506"
    },
    {
      "nct_id": "NCT01633814",
      "title": "Hormone Replacement and Neural Cardiovascular Control in Postmenopausal Women",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Menopause",
        "Aging",
        "Blood Pressure"
      ],
      "interventions": [
        {
          "name": "Transdermal estradiol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Missouri-Columbia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 80 Years · Female only"
      },
      "enrollment_count": 4,
      "start_date": "2011-09",
      "completion_date": "2015-08",
      "has_results": true,
      "last_update_posted_date": "2017-08-10",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 1,
      "location_summary": "Columbia, Missouri",
      "locations": [
        {
          "city": "Columbia",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01633814"
    },
    {
      "nct_id": "NCT00480532",
      "title": "A Study of Continuous Oral Contraceptives and Doxycycline",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contraceptives, Oral"
      ],
      "interventions": [
        {
          "name": "Lybrel",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline",
          "type": "DRUG"
        },
        {
          "name": "Oracea",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Doxycycline 100bid x5 days at the time of bleeding",
          "type": "DRUG"
        },
        {
          "name": "Subantimicrobial doxycycline daily",
          "type": "DRUG"
        },
        {
          "name": "placebo daily",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "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": 131,
      "start_date": "2007-05",
      "completion_date": "2011-05",
      "has_results": true,
      "last_update_posted_date": "2014-10-22",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 2,
      "location_summary": "Honolulu, Hawaii • Portland, Oregon",
      "locations": [
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00480532"
    },
    {
      "nct_id": "NCT02455453",
      "title": "Assessment of Functional Status of Estrogen Receptors in Breast Cancer by Positron Emission Tomography",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "18F-FFNP",
          "type": "DRUG"
        },
        {
          "name": "CTI/Siemens Biograph 40 PET/CT Scanner",
          "type": "DEVICE"
        },
        {
          "name": "Estradiol",
          "type": "DRUG"
        },
        {
          "name": "18F-FDG",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "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": 47,
      "start_date": "2015-04-28",
      "completion_date": "2019-01-03",
      "has_results": true,
      "last_update_posted_date": "2020-01-14",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02455453"
    },
    {
      "nct_id": "NCT00656981",
      "title": "Evaluate Safety and Efficacy of an Oral Contraceptive (OC) Preparation Versus Placebo for 6 Treatment Cycles in Women With Moderate Acne",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acne Vulgaris"
      ],
      "interventions": [
        {
          "name": "YAZ (DRSP 3 mg/EE 0.02 mg, BAY86-5300)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "14 Years to 45 Years · Female only"
      },
      "enrollment_count": 541,
      "start_date": "2003-01",
      "completion_date": "2004-06",
      "has_results": false,
      "last_update_posted_date": "2014-12-30",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 22,
      "location_summary": "Mobile, Alabama • Kingman, Arizona • Encino, California + 18 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Kingman",
          "state": "Arizona"
        },
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00656981"
    },
    {
      "nct_id": "NCT00030095",
      "title": "2-Methoxyestradiol in Treating Patients With Advanced Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "2-methoxyestradiol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": null,
      "start_date": "2001-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-04-30",
      "last_synced_at": "2026-10-22T18:12:43.474Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00030095"
    }
  ]
}