{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Breast+Cancer&page=8&q=hormone+receptor-positive",
    "query": {
      "q": "hormone receptor-positive",
      "condition": "Breast Cancer",
      "page": 8
    },
    "page_size": 10
  },
  "pagination": {
    "page": 8,
    "page_size": 10,
    "total_count": 678,
    "total_pages": 68,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Breast+Cancer&page=9&q=hormone+receptor-positive&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Breast+Cancer&page=7&q=hormone+receptor-positive&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-14T19:49:19.226Z",
  "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": "NCT01273168",
      "title": "Endoxifen in Adults With Hormone Receptor Positive Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hormone Receptor-Positive Breast",
        "Gynecologic",
        "Desmoid",
        "Hormone Receptor-Positive Neoplasms"
      ],
      "interventions": [
        {
          "name": "Z-Endoxifen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 40,
      "start_date": "2011-03-01",
      "completion_date": "2025-12-19",
      "has_results": false,
      "last_update_posted_date": "2025-12-23",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01273168"
    },
    {
      "nct_id": "NCT02219789",
      "title": "Alisertib and Fulvestrant in Treating Patients With Hormone Receptor Positive Breast Cancer That is Metastatic or Locally Advanced and Cannot Be Removed by Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Estrogen Receptor Positive",
        "Progesterone Receptor Positive",
        "Recurrent Breast Carcinoma",
        "Stage IIIB Breast Cancer",
        "Stage IIIC Breast Cancer",
        "Stage IV Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Alisertib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "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": 10,
      "start_date": "2014-12-05",
      "completion_date": "2018-10-01",
      "has_results": false,
      "last_update_posted_date": "2018-10-03",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02219789"
    },
    {
      "nct_id": "NCT03304080",
      "title": "Anastrozole, Palbociclib, Trastuzumab and Pertuzumab in HR-positive, HER2-positive Metastatic Breast",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Breast Neoplasms",
        "Breast Diseases"
      ],
      "interventions": [
        {
          "name": "Anastrozole",
          "type": "DRUG"
        },
        {
          "name": "Palbociclib",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab",
          "type": "DRUG"
        },
        {
          "name": "Pertuzumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Icahn School of Medicine at Mount Sinai",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 44,
      "start_date": "2017-12-20",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-29",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 5,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03304080"
    },
    {
      "nct_id": "NCT05646862",
      "title": "A Study Evaluating the Efficacy and Safety of Inavolisib Plus Fulvestrant Compared With Alpelisib Plus Fulvestrant in Participants With HR-Positive, HER2-Negative, PIK3CA Mutated, Locally Advanced or Metastatic Breast Cancer Post CDK4/6i and Endocrine Combination Therapy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Inavolisib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Alpelisib",
          "type": "DRUG"
        },
        {
          "name": "Bupropion",
          "type": "DRUG"
        },
        {
          "name": "Omeprazole",
          "type": "DRUG"
        },
        {
          "name": "Midazolam",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 420,
      "start_date": "2023-06-07",
      "completion_date": "2029-03-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-28",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 39,
      "location_summary": "Greenbrae, California • Los Alamitos, California • Los Angeles, California + 32 more",
      "locations": [
        {
          "city": "Greenbrae",
          "state": "California"
        },
        {
          "city": "Los Alamitos",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05646862"
    },
    {
      "nct_id": "NCT05524584",
      "title": "Anastrazole, Fulvestrant & Abemaciclib for HR+HER2- Metastatic Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Metastatic Breast Cancer",
        "Hormone Receptor-positive Breast Cancer",
        "HER2-negative Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Anastrozole",
          "type": "DRUG"
        },
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2022-08-31",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-11",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 1,
      "location_summary": "Orange, California",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05524584"
    },
    {
      "nct_id": "NCT00897091",
      "title": "S8814A Biomarkers in Predicting Outcome in Postmenopausal Women With Hormone Receptor-Positive, Node-Positive Breast Cancer Treated With Tamoxifen With or Without Cyclophosphamide, Doxorubicin, and Fluorouracil",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "comparative genomic hybridization",
          "type": "GENETIC"
        },
        {
          "name": "microarray analysis",
          "type": "GENETIC"
        },
        {
          "name": "reverse transcriptase-polymerase chain reaction",
          "type": "GENETIC"
        },
        {
          "name": "diagnostic laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 750,
      "start_date": "2006-07",
      "completion_date": "2007-10",
      "has_results": false,
      "last_update_posted_date": "2013-05-30",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 1,
      "location_summary": "Maywood, Illinois",
      "locations": [
        {
          "city": "Maywood",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00897091"
    },
    {
      "nct_id": "NCT04504331",
      "title": "Study of Infigratinib in Combination With Tamoxifen in Hormone Receptor Positive, HER2 Negative, FGFR Altered Advanced Breast Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Cancer",
        "HER2-negative Breast Cancer",
        "ER Positive Breast Cancer",
        "PR-Positive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Infigratinib",
          "type": "DRUG"
        },
        {
          "name": "Tamoxifen",
          "type": "DRUG"
        },
        {
          "name": "Omnipaque 350",
          "type": "DRUG"
        },
        {
          "name": "Iopamidol",
          "type": "DRUG"
        },
        {
          "name": "Computed tomography (CT)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Jennifer Lee Caswell-Jin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2020-10-13",
      "completion_date": "2021-10-22",
      "has_results": true,
      "last_update_posted_date": "2026-02-12",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04504331"
    },
    {
      "nct_id": "NCT04243616",
      "title": "Cemiplimab in High-risk or Locally Advanced Luminal and Triple Negative Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Invasive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Cemiplimab",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin (not mandatory)",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medical College of Wisconsin",
      "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": 36,
      "start_date": "2020-03-05",
      "completion_date": "2030-08-12",
      "has_results": true,
      "last_update_posted_date": "2026-07-27",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04243616"
    },
    {
      "nct_id": "NCT05963984",
      "title": "A Study of Samuraciclib in Combination With Fulvestrant in Metastatic or Locally Advanced Breast Cancer in Adult Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Breast Cancer",
        "Locally Advanced Breast Cancer",
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Samuraciclib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Carrick Therapeutics Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2023-11-16",
      "completion_date": "2025-08-28",
      "has_results": false,
      "last_update_posted_date": "2025-12-26",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 5,
      "location_summary": "Ocala, Florida • Baltimore, Maryland • Kansas City, Missouri + 2 more",
      "locations": [
        {
          "city": "Ocala",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05963984"
    },
    {
      "nct_id": "NCT02260661",
      "title": "Phase I, Dose Study to Look at the Safety and Pharmacokinetics of AZD8835 in Patients With Advanced Solid Tumours",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced Solid Malignancies",
        "Breast Cancer - ER+, HER2 -",
        "Breast Cancer - ER+, HER2-, PIK3CA Gene Mutation"
      ],
      "interventions": [
        {
          "name": "AZD8835",
          "type": "DRUG"
        },
        {
          "name": "AZD8835 in combination with fulvestrant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "130 Years",
        "sex": "ALL",
        "summary": "18 Years to 130 Years"
      },
      "enrollment_count": 20,
      "start_date": "2014-11",
      "completion_date": "2016-07",
      "has_results": false,
      "last_update_posted_date": "2016-10-10",
      "last_synced_at": "2026-10-14T19:49:19.226Z",
      "location_count": 5,
      "location_summary": "Denver, Colorado • Greenville, South Carolina • Nashville, Tennessee + 2 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Greenville",
          "state": "South Carolina"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02260661"
    }
  ]
}