{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ESTRING&page=17",
    "query": {
      "intervention": "ESTRING",
      "page": 17
    },
    "page_size": 10
  },
  "pagination": {
    "page": 17,
    "page_size": 10,
    "total_count": 887,
    "total_pages": 89,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ESTRING&page=18&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=ESTRING&page=16&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-30T13:27:14.229Z",
  "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": "NCT00005847",
      "title": "Chemotherapy With or Without Biological Therapy in Treating Patients With Metastatic Prostate Cancer That Has Not Responded to Hormone Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "recombinant interferon alfa",
          "type": "BIOLOGICAL"
        },
        {
          "name": "estramustine phosphate sodium",
          "type": "DRUG"
        },
        {
          "name": "isotretinoin",
          "type": "DRUG"
        },
        {
          "name": "mitoxantrone hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "vinorelbine ditartrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Eastern Cooperative Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "MALE",
        "summary": "18 Years to 120 Years · Male only"
      },
      "enrollment_count": null,
      "start_date": "2001-04-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2023-06-22",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 19,
      "location_summary": "Denver, Colorado • Atlanta, Georgia • Decatur, Georgia + 16 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "Urbana",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00005847"
    },
    {
      "nct_id": "NCT02272647",
      "title": "Progesterone Amplifies Estrogen-stimulated Growth Hormone Secretion in Older Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "IM Saline Placebo (0.25 ml)",
          "type": "DRUG"
        },
        {
          "name": "IM Estradiol valerate (2.5 mg)",
          "type": "DRUG"
        },
        {
          "name": "IM Saline Placebo (0.5 ml)",
          "type": "DRUG"
        },
        {
          "name": "IM Estradiol valerate (5.0 mg)",
          "type": "DRUG"
        },
        {
          "name": "Oral Micronized Progesterone",
          "type": "DRUG"
        },
        {
          "name": "Oral Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ghrelin (0.3 ug/kg)",
          "type": "DRUG"
        },
        {
          "name": "Medroxyprogesterone - Acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "50 Years to 80 Years · Female only"
      },
      "enrollment_count": 47,
      "start_date": "2014-12",
      "completion_date": "2018-02",
      "has_results": false,
      "last_update_posted_date": "2018-03-22",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02272647"
    },
    {
      "nct_id": "NCT02691494",
      "title": "Efficacy and Safety of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women (Replicate Study)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Uterine Fibroids",
        "Heavy Menstrual Bleeding"
      ],
      "interventions": [
        {
          "name": "Elagolix",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Estradiol/Norethindrone Acetate",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/Norethindrone Acetate",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Elagolix",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "51 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 51 Years · Female only"
      },
      "enrollment_count": 378,
      "start_date": "2016-02-03",
      "completion_date": "2019-01-23",
      "has_results": true,
      "last_update_posted_date": "2021-07-13",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 103,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Fairhope, Alabama + 89 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Fairhope",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02691494"
    },
    {
      "nct_id": "NCT04447872",
      "title": "The LUTEAL Trial: Luteal Stimulation vs. Estrogen Priming Protocol",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infertility",
        "Diminished Ovarian Reserve",
        "IVF"
      ],
      "interventions": [
        {
          "name": "Timing of injectable gonadotropins",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Northwell Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 45 Years · Female only"
      },
      "enrollment_count": 142,
      "start_date": "2020-09-15",
      "completion_date": "2025-06",
      "has_results": false,
      "last_update_posted_date": "2023-10-16",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 1,
      "location_summary": "Manhasset, New York",
      "locations": [
        {
          "city": "Manhasset",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04447872"
    },
    {
      "nct_id": "NCT01528345",
      "title": "Trial Evaluating Dovitinib Combined With Fulvestrant, in Postmenopausal Patients With HER2- and HR+ Breast Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Dovitinib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Dovitinib Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 97,
      "start_date": "2012-04",
      "completion_date": "2015-04",
      "has_results": true,
      "last_update_posted_date": "2016-07-11",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 18,
      "location_summary": "Chandler, Arizona • Fayetteville, Arkansas • Duarte, California + 15 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01528345"
    },
    {
      "nct_id": "NCT02654054",
      "title": "Efficacy and Safety of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Uterine Fibroids",
        "Heavy Menstrual Bleeding"
      ],
      "interventions": [
        {
          "name": "Elagolix",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Estradiol/Norethindrone Acetate",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/Norethindrone Acetate",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Elagolix",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AbbVie",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "51 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 51 Years · Female only"
      },
      "enrollment_count": 413,
      "start_date": "2015-12-22",
      "completion_date": "2018-12-12",
      "has_results": true,
      "last_update_posted_date": "2020-06-29",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 92,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Costa Mesa, California + 79 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Hawaiian Gardens",
          "state": "California"
        },
        {
          "city": "La Mesa",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02654054"
    },
    {
      "nct_id": "NCT03531645",
      "title": "Fulvestrant Plus Abemaciclib in Women With Advanced Low Grade Serous Carcinoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Malignant Neoplasms of Female Genital Organs"
      ],
      "interventions": [
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson 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": 18,
      "start_date": "2019-08-13",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-14",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03531645"
    },
    {
      "nct_id": "NCT00218205",
      "title": "A Study of Epirubicin With Estramustine Phosphate and Celecoxib for the Treatment of Prostate Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Epirubicin",
          "type": "DRUG"
        },
        {
          "name": "Estramustine Phosphate",
          "type": "DRUG"
        },
        {
          "name": "Celecoxib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Department of Veterans Affairs, New Jersey",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 28,
      "start_date": "2002-07",
      "completion_date": "2006-06",
      "has_results": false,
      "last_update_posted_date": "2005-09-22",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 1,
      "location_summary": "East Orange, New Jersey",
      "locations": [
        {
          "city": "East Orange",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00218205"
    },
    {
      "nct_id": "NCT00029757",
      "title": "Buccal Estrogen in Toothpaste Study: Systemic Absorption of Estradiol When Administered Mixed With Toothpaste in Postmenopausal or Surgically Menopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Menopause",
        "Postmenopause"
      ],
      "interventions": [
        {
          "name": "Estrogen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Center for Research Resources (NCRR)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "35 Years to 75 Years · Female only"
      },
      "enrollment_count": 15,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-11-07",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00029757"
    },
    {
      "nct_id": "NCT01035099",
      "title": "RCT of Fixed vs Titrated Letrozole in Breast Cancer Patient Undergoing IVF",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Breast Cancer",
        "Infertility"
      ],
      "interventions": [
        {
          "name": "Letrozole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "19 Years to 45 Years · Female only"
      },
      "enrollment_count": 41,
      "start_date": "2009-11",
      "completion_date": "2022-09-30",
      "has_results": true,
      "last_update_posted_date": "2022-12-13",
      "last_synced_at": "2026-10-30T13:27:14.229Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01035099"
    }
  ]
}