{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Estradiol+Ring&page=2",
    "query": {
      "intervention": "Estradiol Ring",
      "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=Estradiol+Ring&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T04:20:38.739Z",
  "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": "NCT00083005",
      "title": "Docetaxel, Estramustine, and Thalidomide in Treating Patients With Androgen-Independent Metastatic Adenocarcinoma of the Prostate",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "docetaxel",
          "type": "DRUG"
        },
        {
          "name": "estramustine phosphate sodium",
          "type": "DRUG"
        },
        {
          "name": "thalidomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 60,
      "start_date": "2004-03",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2012-03-15",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00083005"
    },
    {
      "nct_id": "NCT05867251",
      "title": "Study of AVZO-021 in Patients With Advanced Solid Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Advanced Solid Tumor",
        "HR+/HER2- Breast Cancer",
        "HR+, HER2-, Advanced Breast Cancer",
        "CCNE1 Amplification",
        "Epithelial Ovarian Cancer",
        "Primary Peritoneal Cancer",
        "Fallopian Tube Cancer",
        "Endometrial Cancer",
        "TNBC - Triple-Negative Breast Cancer"
      ],
      "interventions": [
        {
          "name": "AVZO-021",
          "type": "DRUG"
        },
        {
          "name": "Palbociclib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Letrozole",
          "type": "DRUG"
        },
        {
          "name": "Ribociclib",
          "type": "DRUG"
        },
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Sacituzumab Govitecan-hziy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Avenzo 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": 430,
      "start_date": "2023-08-30",
      "completion_date": "2030-01-31",
      "has_results": false,
      "last_update_posted_date": "2025-11-19",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 11,
      "location_summary": "New Haven, Connecticut • Sarasota, Florida • Tampa, Florida + 8 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Mineola",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05867251"
    },
    {
      "nct_id": "NCT03310541",
      "title": "AZD5363 in Patients With Advanced Solid Tumors Harboring AKT Mutations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Cancer",
        "Prostate Cancer",
        "Advanced Solid Tumors"
      ],
      "interventions": [
        {
          "name": "AZD5363",
          "type": "DRUG"
        },
        {
          "name": "Enzalutamide",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "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": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2017-10-11",
      "completion_date": "2023-05-03",
      "has_results": false,
      "last_update_posted_date": "2023-05-06",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 3,
      "location_summary": "Middletown, New Jersey • Harrison, New York • New York, New York",
      "locations": [
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Harrison",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03310541"
    },
    {
      "nct_id": "NCT03498313",
      "title": "Unique Effects of Perimenstrual Estradiol or Progesterone Supplementation on Perimenstrual Suicidality",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Suicidal Ideation"
      ],
      "interventions": [
        {
          "name": "Transdermal Estradiol + Placebo",
          "type": "DRUG"
        },
        {
          "name": "Oral Micronized Progesterone + Placebo",
          "type": "DRUG"
        },
        {
          "name": "Placebos",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Illinois at Chicago",
      "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": 60,
      "start_date": "2018-07-27",
      "completion_date": "2021-05-09",
      "has_results": true,
      "last_update_posted_date": "2022-09-14",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03498313"
    },
    {
      "nct_id": "NCT03689543",
      "title": "Estrogen Receptor Beta and Mood",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Perimenopause-Related Depression"
      ],
      "interventions": [
        {
          "name": "Estradiol",
          "type": "DRUG"
        },
        {
          "name": "ER Beta Agonist",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Provera",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "45 Years to 65 Years · Female only"
      },
      "enrollment_count": 74,
      "start_date": "2019-05-23",
      "completion_date": "2024-09-09",
      "has_results": true,
      "last_update_posted_date": "2025-09-16",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03689543"
    },
    {
      "nct_id": "NCT07539090",
      "title": "Evaluate the Effect of Vimseltinib on Pharmacokinetics of Combined Oral Contraceptive (Ethinyl Estradiol/Levonorgestrel)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Vimseltinib",
          "type": "DRUG"
        },
        {
          "name": "Combined Oral Contraceptive (COC) (ethinyl estradiol [EE]/levonorgestrel [LNG])",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Deciphera Pharmaceuticals, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 24,
      "start_date": "2026-06-05",
      "completion_date": "2026-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07539090"
    },
    {
      "nct_id": "NCT01862835",
      "title": "Impact of Estradiol Addback",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Normal Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Degarelix",
          "type": "DRUG"
        },
        {
          "name": "Testosterone",
          "type": "DRUG"
        },
        {
          "name": "Anastrozole",
          "type": "DRUG"
        },
        {
          "name": "Estrogen patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "60 Years to 80 Years · Male only"
      },
      "enrollment_count": 43,
      "start_date": "2013-05",
      "completion_date": "2018-12-30",
      "has_results": false,
      "last_update_posted_date": "2019-06-07",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01862835"
    },
    {
      "nct_id": "NCT00005048",
      "title": "Estramustine and Paclitaxel in Treating Patients With Prostate Cancer That Has Not Responded to Hormone Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "estramustine phosphate sodium",
          "type": "DRUG"
        },
        {
          "name": "paclitaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "MALE",
        "summary": "Male only"
      },
      "enrollment_count": null,
      "start_date": "1997-04",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2012-11-09",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 2,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005048"
    },
    {
      "nct_id": "NCT06334315",
      "title": "Oral Contraceptive Pill (OCP) Pharmacogenomics",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Contraception",
        "Pharmacogenomic Drug Interaction"
      ],
      "interventions": [
        {
          "name": "Desogestrel / Ethinyl Estradiol Pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale 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": 700,
      "start_date": "2024-10-29",
      "completion_date": "2028-05",
      "has_results": false,
      "last_update_posted_date": "2026-07-16",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • New Haven, Connecticut",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06334315"
    },
    {
      "nct_id": "NCT00442689",
      "title": "Metabolic Syndrome in PCOS: Precursors and Interventions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Polycystic Ovary Syndrome",
        "Metabolic Syndrome"
      ],
      "interventions": [
        {
          "name": "flutamide",
          "type": "DRUG"
        },
        {
          "name": "ethinyl estradiol 35 mcg and drospirenone 3 mg",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 35 Years · Female only"
      },
      "enrollment_count": 97,
      "start_date": "2006-07",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2014-06-06",
      "last_synced_at": "2026-09-25T04:20:38.739Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00442689"
    }
  ]
}