{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=17+beta+estradiol&page=2",
    "query": {
      "intervention": "17 beta estradiol",
      "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=17+beta+estradiol&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T05:08:44.490Z",
  "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": "NCT00310791",
      "title": "Adrenal and Gonadal Hormone Replacement in Anorexia Nervosa",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Anorexia Nervosa"
      ],
      "interventions": [
        {
          "name": "Hormone replacement therapy (estrogen/progestin)",
          "type": "DRUG"
        },
        {
          "name": "Placebo (Sugar Pill)",
          "type": "OTHER"
        },
        {
          "name": "Dehydroepiandrosterone (DHEA)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "30 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 30 Years · Female only"
      },
      "enrollment_count": 80,
      "start_date": "2004-04",
      "completion_date": "2010-12",
      "has_results": true,
      "last_update_posted_date": "2018-04-11",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00310791"
    },
    {
      "nct_id": "NCT00984399",
      "title": "Serum Estradiol Levels In Postmenopausal Women With Breast Cancer Receiving Adjuvant Aromatase Inhibitors and Vaginal Estrogen",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrophic Vaginitis",
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Vagifem® (vaginal 17β-estradiol) questionnaire & menopause symptom checklist",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 31,
      "start_date": "2009-09-22",
      "completion_date": "2024-05-13",
      "has_results": true,
      "last_update_posted_date": "2025-12-09",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 5,
      "location_summary": "Basking Ridge, New Jersey • Commack, New York • New York, New York + 2 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Rockville Centre",
          "state": "New York"
        },
        {
          "city": "Sleepy Hollow",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00984399"
    },
    {
      "nct_id": "NCT00030147",
      "title": "Raloxifene and Rimostil for Perimenopause-Related Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Perimenopausal Depression",
        "Depression"
      ],
      "interventions": [
        {
          "name": "Raloxifene",
          "type": "DRUG"
        },
        {
          "name": "Rimostil",
          "type": "DRUG"
        },
        {
          "name": "Transdermal Estradiol",
          "type": "DRUG"
        },
        {
          "name": "Placebo skin patch and placebo tablets",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 60 Years · Female only"
      },
      "enrollment_count": 65,
      "start_date": "2002-02",
      "completion_date": "2015-06",
      "has_results": true,
      "last_update_posted_date": "2016-09-05",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00030147"
    },
    {
      "nct_id": "NCT05428215",
      "title": "Comparison of PKs of 17-Beta-Estradiol Via Sublingual Placement Versus Swallowing in Male-to-Female Transgender Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Gender Dysphoria"
      ],
      "interventions": [
        {
          "name": "17beta Estradiol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "MaineHealth",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 2,
      "start_date": "2022-12-29",
      "completion_date": "2023-07-20",
      "has_results": false,
      "last_update_posted_date": "2023-07-27",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 1,
      "location_summary": "Portland, Maine",
      "locations": [
        {
          "city": "Portland",
          "state": "Maine"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05428215"
    },
    {
      "nct_id": "NCT02219789",
      "title": "Alisertib and Fulvestrant in Treating Patients With Hormone Receptor Positive Breast Cancer That is Metastatic or Locally Advanced and Cannot Be Removed by Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Estrogen Receptor Positive",
        "Progesterone Receptor Positive",
        "Recurrent Breast Carcinoma",
        "Stage IIIB Breast Cancer",
        "Stage IIIC Breast Cancer",
        "Stage IV Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Alisertib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "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": 10,
      "start_date": "2014-12-05",
      "completion_date": "2018-10-01",
      "has_results": false,
      "last_update_posted_date": "2018-10-03",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02219789"
    },
    {
      "nct_id": "NCT00332553",
      "title": "Study of Hot Flashes and Night Sweats in Postmenopausal Women Receiving Combination Raloxifene and Oral Estrogen",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Vasomotor Symptoms",
        "Endometrial Safety"
      ],
      "interventions": [
        {
          "name": "Raloxifene",
          "type": "DRUG"
        },
        {
          "name": "medroxyprogesterone acetate",
          "type": "DRUG"
        },
        {
          "name": "estrogen",
          "type": "DRUG"
        },
        {
          "name": "17 beta estradiol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 70 Years · Female only"
      },
      "enrollment_count": 150,
      "start_date": "2002-02",
      "completion_date": "2004-05",
      "has_results": false,
      "last_update_posted_date": "2007-05-15",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00332553"
    },
    {
      "nct_id": "NCT01389102",
      "title": "Estradiol Transdermal Spray in the Treatment of Vasomotor Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hot Flashes"
      ],
      "interventions": [
        {
          "name": "Estradiol transdermal one 90 μL spray",
          "type": "DRUG"
        },
        {
          "name": "Estradiol transdermal spray, two 90 μL sprays",
          "type": "DRUG"
        },
        {
          "name": "Estradiol transdermal three 90 μL sprays",
          "type": "DRUG"
        },
        {
          "name": "Placebo transdermal two 90 μL sprays",
          "type": "DRUG"
        },
        {
          "name": "Placebo transdermal three 90 μL sprays",
          "type": "DRUG"
        },
        {
          "name": "Placebo transdermal one 90 μL spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lumara Health, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "35 Years and older · Female only"
      },
      "enrollment_count": 454,
      "start_date": "2004-12",
      "completion_date": "2006-11",
      "has_results": true,
      "last_update_posted_date": "2012-06-11",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 43,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Oro Valley, Arizona + 37 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Oro Valley",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01389102"
    },
    {
      "nct_id": "NCT04865029",
      "title": "Estradiol and Progesterone in Hospitalized COVID-19 Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Placebo injection and placebo pill",
          "type": "OTHER"
        },
        {
          "name": "Estradiol Cypionate 5 mg/ml",
          "type": "DRUG"
        },
        {
          "name": "Progesterone 200 mg Oral Capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Tulane University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2021-07-22",
      "completion_date": "2022-01-25",
      "has_results": true,
      "last_update_posted_date": "2023-06-27",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04865029"
    },
    {
      "nct_id": "NCT03941730",
      "title": "Estradiol in Treating Patients With ER Beta Positive, Triple Negative Locally Advanced or Metastatic Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Triple-Negative Breast Carcinoma",
        "Anatomic Stage III Breast Cancer AJCC v8",
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Metastatic Triple-Negative Breast Carcinoma",
        "Recurrent Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Therapeutic Estradiol",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "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": 8,
      "start_date": "2019-08-28",
      "completion_date": "2026-12-31",
      "has_results": true,
      "last_update_posted_date": "2026-05-12",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 9,
      "location_summary": "Birmingham, Alabama • San Francisco, California • Washington D.C., District of Columbia + 5 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03941730"
    },
    {
      "nct_id": "NCT06657105",
      "title": "A Study to Investigate the Pharmacokinetics of Ethinyl Estradiol and Levonorgestrel When Given Alone and in Combination With Baxdrostat in Healthy Females of Non-childbearing Potential",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "EE/LNG",
          "type": "DRUG"
        },
        {
          "name": "Baxdrostat",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "35 Years to 75 Years · Female only"
      },
      "enrollment_count": 22,
      "start_date": "2024-11-01",
      "completion_date": "2025-02-03",
      "has_results": false,
      "last_update_posted_date": "2025-02-07",
      "last_synced_at": "2026-09-29T05:08:44.490Z",
      "location_count": 1,
      "location_summary": "Brooklyn, Maryland",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06657105"
    }
  ]
}