{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Estrogen+Receptor-negative+Breast+Cancer&page=6",
    "query": {
      "condition": "Estrogen Receptor-negative Breast Cancer",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 512,
    "total_pages": 52,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Estrogen+Receptor-negative+Breast+Cancer&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Estrogen+Receptor-negative+Breast+Cancer&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-12T20:02:14.502Z",
  "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": "NCT04965688",
      "title": "Biology Guided Therapy for Breast Cancer for ER Positive",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Estrogen Receptor-positive Breast Cancer",
        "HER2-negative Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Biopsy-Guided Therapy Selection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Inova Health Care Services",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2021-08-08",
      "completion_date": "2024-03-13",
      "has_results": true,
      "last_update_posted_date": "2025-04-10",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 1,
      "location_summary": "Fairfax, Virginia",
      "locations": [
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04965688"
    },
    {
      "nct_id": "NCT03050398",
      "title": "A Companion Sample Collection Protocol to Support the Discovery of Breast Cancer Aberrations With Treatment of CDK4/6 Therapy/LEE011/Ribociclib",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Ribociclib",
          "type": "DRUG"
        },
        {
          "name": "letrozole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2017-06-07",
      "completion_date": "2019-03-08",
      "has_results": true,
      "last_update_posted_date": "2020-05-28",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 6,
      "location_summary": "Sedona, Arizona • Long Beach, California • Charlotte, North Carolina + 3 more",
      "locations": [
        {
          "city": "Sedona",
          "state": "Arizona"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Florence",
          "state": "South Carolina"
        },
        {
          "city": "Rock Hill",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03050398"
    },
    {
      "nct_id": "NCT06757634",
      "title": "Phase 3 Study of Gedatolisib as First-Line Treatment for Patients With HR-Positive, HER2-Negative Advanced Breast Cancer (VIKTORIA-2)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Arm A: Gedatolisib + Palbociclib + Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Arm B: Ribociclib + Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Arm C: Gedatolisib + Palbociclib + Letrozole",
          "type": "DRUG"
        },
        {
          "name": "Arm D: Ribociclib + Letrozole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Celcuity Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1180,
      "start_date": "2025-07-24",
      "completion_date": "2033-07-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-09",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 30,
      "location_summary": "Jonesboro, Arkansas • Little Rock, Arkansas • Duarte, California + 27 more",
      "locations": [
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06757634"
    },
    {
      "nct_id": "NCT01142401",
      "title": "Fulvestrant With or Without Bortezomib in Patients With Inoperable Locally Advanced or Metastatic Estrogen Receptor Positive Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Breast Carcinoma",
        "Stage IIIB Breast Cancer AJCC v7",
        "Stage IIIC Breast Cancer AJCC v7",
        "Stage IV Breast Cancer AJCC v6 and v7"
      ],
      "interventions": [
        {
          "name": "Bortezomib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 118,
      "start_date": "2010-05-26",
      "completion_date": "2021-01-08",
      "has_results": true,
      "last_update_posted_date": "2023-11-27",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 21,
      "location_summary": "Farmington, Connecticut • New Haven, Connecticut • Weston, Florida + 8 more",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Weston",
          "state": "Florida"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01142401"
    },
    {
      "nct_id": "NCT00827567",
      "title": "Trial of RAD001 in Triple Negative Metastatic Breast Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "RAD 001",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Milton S. Hershey Medical 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": 6,
      "start_date": "2009-04",
      "completion_date": "2011-02",
      "has_results": true,
      "last_update_posted_date": "2014-01-13",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00827567"
    },
    {
      "nct_id": "NCT00777673",
      "title": "Preoperative Chemotherapy in Triple Negative Invasive Breast Cancer That Can be Removed by Surgery.",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Bevacizumab, nab-paclitaxel, carboplatin, doxorubicin hydrochloride, cyclophosphamide, PEG-Filgrastim",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Tennessee Cancer Institute",
      "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": 60,
      "start_date": "2008-10",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2013-01-04",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 3,
      "location_summary": "Memphis, Tennessee • Fort Worth, Texas",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00777673"
    },
    {
      "nct_id": "NCT00817531",
      "title": "Efficacy Study of Dasatinib in Locally Advanced Triple-Negative Breast Cancer Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Dasatinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baylor Breast Care Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 80 Years · Female only"
      },
      "enrollment_count": 22,
      "start_date": "2008-12",
      "completion_date": "2011-02",
      "has_results": true,
      "last_update_posted_date": "2012-08-31",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00817531"
    },
    {
      "nct_id": "NCT00002967",
      "title": "Octreotide, Tamoxifen, and Chemotherapy in Treating Women With Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "octreotide pamoate",
          "type": "DRUG"
        },
        {
          "name": "tamoxifen citrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NSABP Foundation Inc",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": null,
      "start_date": "1997-05",
      "completion_date": "2006-03",
      "has_results": false,
      "last_update_posted_date": "2013-06-21",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 106,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 87 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002967"
    },
    {
      "nct_id": "NCT03742102",
      "title": "A Study of Novel Anti-cancer Agents in Patients With Metastatic Triple Negative Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Triple Negative Breast Neoplasms"
      ],
      "interventions": [
        {
          "name": "Durvalumab",
          "type": "DRUG"
        },
        {
          "name": "Capivasertib",
          "type": "DRUG"
        },
        {
          "name": "Oleclumab",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab deruxtecan",
          "type": "DRUG"
        },
        {
          "name": "Datopotamab deruxtecan",
          "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": 243,
      "start_date": "2018-12-21",
      "completion_date": "2027-02-26",
      "has_results": true,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 8,
      "location_summary": "Tucson, Arizona • Columbia, Maryland • Boston, Massachusetts + 4 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Columbia",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03742102"
    },
    {
      "nct_id": "NCT01522820",
      "title": "Vaccine Therapy With or Without Sirolimus in Treating Patients With NY-ESO-1 Expressing Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Anaplastic Astrocytoma",
        "Anaplastic Oligoastrocytoma",
        "Anaplastic Oligodendroglioma",
        "Estrogen Receptor Negative",
        "Estrogen Receptor Positive",
        "Glioblastoma",
        "Hormone-Resistant Prostate Cancer",
        "Metastatic Prostate Carcinoma",
        "Metastatic Renal Cell Cancer",
        "Recurrent Adult Brain Neoplasm",
        "Recurrent Bladder Carcinoma",
        "Recurrent Breast Carcinoma",
        "Recurrent Colorectal Carcinoma",
        "Recurrent Esophageal Carcinoma",
        "Recurrent Gastric Carcinoma",
        "Recurrent Hepatocellular Carcinoma",
        "Recurrent Lung Carcinoma",
        "Recurrent Melanoma",
        "Recurrent Ovarian Carcinoma",
        "Recurrent Prostate Carcinoma",
        "Recurrent Renal Cell Carcinoma",
        "Recurrent Uterine Corpus Carcinoma",
        "Resectable Hepatocellular Carcinoma",
        "Sarcoma",
        "Stage IA Breast Cancer",
        "Stage IA Ovarian Cancer",
        "Stage IA Uterine Corpus Cancer",
        "Stage IB Breast Cancer",
        "Stage IB Ovarian Cancer",
        "Stage IB Uterine Corpus Cancer",
        "Stage IC Ovarian Cancer",
        "Stage II Uterine Corpus Cancer",
        "Stage IIA Breast Cancer",
        "Stage IIA Lung Carcinoma",
        "Stage IIA Ovarian Cancer",
        "Stage IIB Breast Cancer",
        "Stage IIB Esophageal Cancer",
        "Stage IIB Lung Carcinoma",
        "Stage IIB Ovarian Cancer",
        "Stage IIB Skin Melanoma",
        "Stage IIC Ovarian Cancer",
        "Stage IIC Skin Melanoma",
        "Stage IIIA Breast Cancer",
        "Stage IIIA Esophageal Cancer",
        "Stage IIIA Lung Carcinoma",
        "Stage IIIA Ovarian Cancer",
        "Stage IIIA Skin Melanoma",
        "Stage IIIA Uterine Corpus Cancer",
        "Stage IIIB Breast Cancer",
        "Stage IIIB Esophageal Cancer",
        "Stage IIIB Ovarian Cancer",
        "Stage IIIB Skin Melanoma",
        "Stage IIIB Uterine Corpus Cancer",
        "Stage IIIC Breast Cancer",
        "Stage IIIC Esophageal Cancer",
        "Stage IIIC Ovarian Cancer",
        "Stage IIIC Skin Melanoma",
        "Stage IIIC Uterine Corpus Cancer",
        "Stage IV Bladder Urothelial Carcinoma",
        "Stage IV Esophageal Cancer",
        "Stage IV Ovarian Cancer",
        "Stage IV Prostate Cancer",
        "Stage IV Skin Melanoma",
        "Stage IVA Uterine Corpus Cancer",
        "Stage IVB Uterine Corpus Cancer"
      ],
      "interventions": [
        {
          "name": "DEC-205/NY-ESO-1 Fusion Protein CDX-1401",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Sirolimus",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Roswell Park 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": 18,
      "start_date": "2012-03",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2016-10-04",
      "last_synced_at": "2026-10-12T20:02:14.502Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01522820"
    }
  ]
}