{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=therapeutic+estradiol",
    "query": {
      "intervention": "therapeutic estradiol"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 879,
    "total_pages": 88,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=therapeutic+estradiol&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T10:55:16.702Z",
  "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": "NCT00234676",
      "title": "POETRY: Study of Estrogen Replacement Therapy in Postmenopausal Women With Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Parkinson's Disease"
      ],
      "interventions": [
        {
          "name": "Premarin ®",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The Parkinson Study Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "Up to 75 Years · Female only"
      },
      "enrollment_count": 23,
      "start_date": "2003-10",
      "completion_date": "2006-03",
      "has_results": false,
      "last_update_posted_date": "2008-01-08",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 6,
      "location_summary": "Sunnyvale, California • Atlanta, Georgia • Indianapolis, Indiana + 3 more",
      "locations": [
        {
          "city": "Sunnyvale",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00234676"
    },
    {
      "nct_id": "NCT06494150",
      "title": "Nab-Sirolimus and Endocrine Therapy in Recurrent Low Grade Serous Ovarian Cancer (NARETO)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Low Grade Ovarian Serous Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "nab-Sirolimus",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Oklahoma",
      "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": 37,
      "start_date": "2024-12-26",
      "completion_date": "2029-09",
      "has_results": false,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06494150"
    },
    {
      "nct_id": "NCT00026286",
      "title": "Hormone Replacement Therapy for Hot Flashes and/or Vaginal Symptoms in Postmenopausal Women Receiving Tamoxifen for Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer",
        "Hot Flashes",
        "Menopausal Symptoms"
      ],
      "interventions": [
        {
          "name": "conjugated estrogens",
          "type": "DRUG"
        },
        {
          "name": "medroxyprogesterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eastern Cooperative Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 120 Years · Female only"
      },
      "enrollment_count": null,
      "start_date": "2000-11-28",
      "completion_date": "2007-06-15",
      "has_results": false,
      "last_update_posted_date": "2023-06-15",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 24,
      "location_summary": "Birmingham, Alabama • Chicago, Illinois • Decatur, Illinois + 16 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Decatur",
          "state": "Illinois"
        },
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00026286"
    },
    {
      "nct_id": "NCT00227942",
      "title": "Estrogen for Treating Depression in Menopausal Women With Hot Flashes and Insomnia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Sleep Initiation and Maintenance Disorders",
        "Depression"
      ],
      "interventions": [
        {
          "name": "Estrogen Replacement Therapy",
          "type": "DRUG"
        },
        {
          "name": "Zolpidem",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hadine Joffe, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 60 Years · Female only"
      },
      "enrollment_count": 86,
      "start_date": "2003-08",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2014-05-26",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00227942"
    },
    {
      "nct_id": "NCT05654623",
      "title": "A Study to Learn About a New Medicine Called Vepdegestrant (ARV-471, PF-07850327) in People Who Have Advanced Metastatic Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Advanced Breast Cancer"
      ],
      "interventions": [
        {
          "name": "ARV-471",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 624,
      "start_date": "2023-03-03",
      "completion_date": "2028-05-15",
      "has_results": true,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 87,
      "location_summary": "Encinitas, California • Fountain Valley, California • Fresno, California + 69 more",
      "locations": [
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Napa",
          "state": "California"
        },
        {
          "city": "San Marcos",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05654623"
    },
    {
      "nct_id": "NCT01602380",
      "title": "A Global Study to Compare the Effects of Fulvestrant and Arimidex in a Subset of Patients With Breast Cancer.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hormone Receptor Positive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "faslodex 500mg",
          "type": "DRUG"
        },
        {
          "name": "arimidex 1mg",
          "type": "DRUG"
        },
        {
          "name": "faslodex dummy",
          "type": "DRUG"
        },
        {
          "name": "arimidex dummy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "130 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 130 Years · Female only"
      },
      "enrollment_count": 462,
      "start_date": "2012-10-17",
      "completion_date": "2026-01-16",
      "has_results": true,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 12,
      "location_summary": "Modesto, California • Savannah, Georgia • Auburn, Maine + 9 more",
      "locations": [
        {
          "city": "Modesto",
          "state": "California"
        },
        {
          "city": "Savannah",
          "state": "Georgia"
        },
        {
          "city": "Auburn",
          "state": "Maine"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01602380"
    },
    {
      "nct_id": "NCT02524769",
      "title": "The Estrogen Impact on Overactive Bladder Syndrome: Female Pelvic Floor Microbiomes and Antimicrobial Peptides",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overactive Bladder"
      ],
      "interventions": [
        {
          "name": "conjugated estrogen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Loyola University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "55 Years and older · Female only"
      },
      "enrollment_count": 27,
      "start_date": "2015-12",
      "completion_date": "2017-06",
      "has_results": true,
      "last_update_posted_date": "2021-04-15",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 1,
      "location_summary": "Maywood, Illinois",
      "locations": [
        {
          "city": "Maywood",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02524769"
    },
    {
      "nct_id": "NCT00237042",
      "title": "Managing Temporomandibular Disorder (TMD) Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Temporomandibular Joint Disorders"
      ],
      "interventions": [
        {
          "name": "Self Management",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Targeted Self Management",
          "type": "BEHAVIORAL"
        },
        {
          "name": "20 mcg ethinyl estradiol and 100 mcg levonorgestrel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "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": 252,
      "start_date": "2005-10",
      "completion_date": "2010-06",
      "has_results": true,
      "last_update_posted_date": "2011-07-11",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00237042"
    },
    {
      "nct_id": "NCT07062965",
      "title": "A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "PF-07248144",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Everolimus",
          "type": "DRUG"
        },
        {
          "name": "Exemestane",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2025-08-05",
      "completion_date": "2030-11-04",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 102,
      "location_summary": "Chandler, Arizona • Gilbert, Arizona • Glendale, Arizona + 85 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Goodyear",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07062965"
    },
    {
      "nct_id": "NCT04596592",
      "title": "Pubertal Blockade and Estradiol Effects on Cardiometabolic Health for Transitioning Youth",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Transgenderism",
        "Gender Dysphoria",
        "Insulin Sensitivity"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "13 Years to 16 Years"
      },
      "enrollment_count": 90,
      "start_date": "2021-02-15",
      "completion_date": "2026-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-06-10",
      "last_synced_at": "2026-09-25T10:55:16.702Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04596592"
    }
  ]
}