{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estrogen+hormone+therapy&page=2",
    "query": {
      "intervention": "Estrogen hormone therapy",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 329,
    "total_pages": 33,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estrogen+hormone+therapy&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estrogen+hormone+therapy&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T15:30:24.379Z",
  "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": "NCT00080613",
      "title": "Neoadjuvant and Adjuvant Exemestane in Treating Postmenopausal Women With Locally Advanced Hormone Receptor-Positive Breast Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Stage II Breast Cancer",
        "Stage IIIA Breast Cancer",
        "Stage IIIB Breast Cancer",
        "Stage IIIC Breast Cancer"
      ],
      "interventions": [
        {
          "name": "exemestane",
          "type": "DRUG"
        },
        {
          "name": "adjuvant therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "aromatase inhibition",
          "type": "PROCEDURE"
        },
        {
          "name": "conventional surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "endocrine therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "hormone therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "neoadjuvant therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Robert H. Lurie Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-07-10",
      "last_synced_at": "2026-10-02T15:30:24.379Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00080613"
    },
    {
      "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": "2026-10-02T15:30:24.379Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00310791"
    },
    {
      "nct_id": "NCT00001890",
      "title": "Effects of Hormone Therapy on the Immune Systems of Postmenopausal Women With Chronic Infections",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Atherosclerosis",
        "Chlamydia Infections",
        "Cytomegalovirus Infections",
        "Pneumonia, Bacterial",
        "Postmenopause"
      ],
      "interventions": [
        {
          "name": "Estrogen therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 80,
      "start_date": "1999-05",
      "completion_date": "2001-03",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-10-02T15:30:24.379Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001890"
    },
    {
      "nct_id": "NCT07029399",
      "title": "A Study With NKT5097 for Adults With Advanced/Metastatic Solid Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HR+ Breast Cancer",
        "Triple Negative Breast Cancer (TNBC)",
        "CCNE1 Amplified Advanced Solid Tumors",
        "HR+ HER2- Breast Cancer"
      ],
      "interventions": [
        {
          "name": "NKT5097 CDK2/CDK4 dual degrader",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Letrozole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NiKang Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 361,
      "start_date": "2025-03-25",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-28",
      "last_synced_at": "2026-10-02T15:30:24.379Z",
      "location_count": 18,
      "location_summary": "Duarte, California • La Jolla, California • Denver, Colorado + 15 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07029399"
    },
    {
      "nct_id": "NCT04671966",
      "title": "Sex Differences in Myocardial Steatosis Induced Left Ventricular Dysfunction",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Diseases",
        "Left Ventricular Dysfunction"
      ],
      "interventions": [
        {
          "name": "Estradiol patch",
          "type": "DRUG"
        },
        {
          "name": "Cetrotide",
          "type": "DRUG"
        },
        {
          "name": "Fasting",
          "type": "OTHER"
        },
        {
          "name": "Lower Body Negative Pressure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "The University of Texas at Arlington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 100,
      "start_date": "2018-09-13",
      "completion_date": "2024-12",
      "has_results": false,
      "last_update_posted_date": "2024-02-20",
      "last_synced_at": "2026-10-02T15:30:24.379Z",
      "location_count": 1,
      "location_summary": "Arlington, Texas",
      "locations": [
        {
          "city": "Arlington",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04671966"
    },
    {
      "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": "2026-10-02T15:30:24.379Z",
      "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": "NCT00816556",
      "title": "A Trial to Evaluate the Efficacy of Low Dose Vaginal Estrogens in the Treatment of Atrophic Vaginitis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Atrophic Vaginitis"
      ],
      "interventions": [
        {
          "name": "Estriol",
          "type": "DRUG"
        },
        {
          "name": "Estradiol valerate",
          "type": "DRUG"
        },
        {
          "name": "Vanicream Lite",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Maire Mac Bride",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 75 Years · Female only"
      },
      "enrollment_count": 63,
      "start_date": "2008-10",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2017-11-13",
      "last_synced_at": "2026-10-02T15:30:24.379Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00816556"
    },
    {
      "nct_id": "NCT05221021",
      "title": "Vaginal Estradiol vs Oral Beta-3 Agonist for Overactive Bladder Syndrome",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Overactive Bladder Syndrome"
      ],
      "interventions": [
        {
          "name": "Vaginal estrogen",
          "type": "DRUG"
        },
        {
          "name": "Mirabegron 50 MG [Myrbetriq]",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Walter Reed National Military Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 152,
      "start_date": "2022-10-01",
      "completion_date": "2027-01-30",
      "has_results": false,
      "last_update_posted_date": "2024-08-19",
      "last_synced_at": "2026-10-02T15:30:24.379Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05221021"
    },
    {
      "nct_id": "NCT02040857",
      "title": "Palbociclib in Combination With Adjuvant Endocrine Therapy for Hormone Receptor Positive, HER2 Negative Invasive Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Palbociclib",
          "type": "DRUG"
        },
        {
          "name": "Aromatase Inhibitor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 162,
      "start_date": "2014-01",
      "completion_date": "2024-12-27",
      "has_results": true,
      "last_update_posted_date": "2025-04-29",
      "last_synced_at": "2026-10-02T15:30:24.379Z",
      "location_count": 10,
      "location_summary": "San Francisco, California • Indianapolis, Indiana • Boston, Massachusetts + 5 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02040857"
    },
    {
      "nct_id": "NCT00149604",
      "title": "AFTER: Altering Fat Through Estrogen and Raloxifene",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Postmenopause"
      ],
      "interventions": [
        {
          "name": "conjugated estrogens",
          "type": "DRUG"
        },
        {
          "name": "Raloxifene",
          "type": "DRUG"
        },
        {
          "name": "exercise plus mild caloric restriction for weight loss",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "National Institute on Aging (NIA)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 70 Years · Female only"
      },
      "enrollment_count": 108,
      "start_date": "2000-03",
      "completion_date": "2006-02",
      "has_results": false,
      "last_update_posted_date": "2009-12-02",
      "last_synced_at": "2026-10-02T15:30:24.379Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00149604"
    }
  ]
}