{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+Hormone+Receptor+Positive+Breast+Carcinoma",
    "query": {
      "condition": "Refractory Hormone Receptor Positive Breast Carcinoma"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 17,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractory+Hormone+Receptor+Positive+Breast+Carcinoma&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T02:19:43.080Z",
  "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": "NCT03394027",
      "title": "ONC201 in Recurrent/Refractory Metastatic Breast Cancer and Advanced Endometrial Carcinoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Triple Negative Breast Cancer",
        "Endometrial Cancer",
        "Hormone Receptor Positive, HER2 Negative Breast Cancer"
      ],
      "interventions": [
        {
          "name": "ONC201",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2018-01-17",
      "completion_date": "2021-10-07",
      "has_results": true,
      "last_update_posted_date": "2022-08-23",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03394027"
    },
    {
      "nct_id": "NCT01082068",
      "title": "Study of XL147 (SAR245408) or XL765 (SAR245409) in Combination With Letrozole in Subjects With Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "XL147 (SAR245408)",
          "type": "DRUG"
        },
        {
          "name": "XL765 (SAR245409)",
          "type": "DRUG"
        },
        {
          "name": "letrozole (Femara)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sanofi",
      "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": 72,
      "start_date": "2010-06",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2016-06-03",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 11,
      "location_summary": "Los Angeles, California • Denver, Colorado • Fort Meyers, Florida + 8 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Fort Meyers",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01082068"
    },
    {
      "nct_id": "NCT07205822",
      "title": "A Study of Dato-DXd in Inoperable or Metastatic Hormone Receptor-positive, HER2 IHC 0 Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Dato-DXd",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2025-10-30",
      "completion_date": "2028-02-02",
      "has_results": false,
      "last_update_posted_date": "2026-05-12",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 6,
      "location_summary": "Largo, Florida • Fort Wayne, Indiana • Omaha, Nebraska + 3 more",
      "locations": [
        {
          "city": "Largo",
          "state": "Florida"
        },
        {
          "city": "Fort Wayne",
          "state": "Indiana"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07205822"
    },
    {
      "nct_id": "NCT06264921",
      "title": "A Study With NKT3447 for Adults With Advanced/Metastatic Solid Tumors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Solid Tumor",
        "Solid Tumor, Adult",
        "Advanced Solid Tumor",
        "Metastatic Tumor",
        "Ovarian Cancer",
        "Ovarian Neoplasms",
        "Ovarian Carcinoma",
        "Metastatic Ovarian Carcinoma",
        "Endometrial Cancer",
        "Endometrial Neoplasms",
        "Endometrial Diseases",
        "Metastatic Endometrial Cancer",
        "Metastatic Endometrial Carcinoma",
        "Advanced Endometrial Carcinoma",
        "Advanced Ovarian Carcinoma",
        "Gastric Cancer",
        "Advanced Gastric Carcinoma",
        "Metastatic Gastric Cancer",
        "Metastatic Gastric Carcinoma",
        "Small-cell Lung Cancer",
        "Small Cell Lung Carcinoma",
        "Triple Negative Breast Cancer",
        "Triple Negative Breast Neoplasms",
        "Platinum-resistant Ovarian Cancer",
        "Platinum-refractory Ovarian Carcinoma",
        "CCNE1 Amplification",
        "Hormone Receptor Negative Breast Carcinoma",
        "Human Epidermal Growth Factor 2 Negative Carcinoma of Breast",
        "Progesterone-receptor-positive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "NKT3447",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NiKang 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": 23,
      "start_date": "2024-02-23",
      "completion_date": "2025-04-16",
      "has_results": false,
      "last_update_posted_date": "2025-09-25",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 8,
      "location_summary": "San Francisco, California • Denver, Colorado • Celebration, Florida + 5 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Celebration",
          "state": "Florida"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06264921"
    },
    {
      "nct_id": "NCT00006368",
      "title": "Yttrium Y 90 SMT 487 in Treating Patients With Refractory or Recurrent Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Brain and Central Nervous System Tumors",
        "Breast Cancer",
        "Gastrointestinal Carcinoid Tumor",
        "Islet Cell Tumor",
        "Lung Cancer",
        "Lymphoma",
        "Melanoma (Skin)",
        "Neoplastic Syndrome"
      ],
      "interventions": [
        {
          "name": "yttrium Y 90-edotreotide",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "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": 60,
      "start_date": "1998-01",
      "completion_date": "2003-11",
      "has_results": false,
      "last_update_posted_date": "2013-05-01",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006368"
    },
    {
      "nct_id": "NCT06586957",
      "title": "A Study With NKT3964 for Adults With Advanced/Metastatic Solid Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Solid Tumor",
        "Advanced Solid Tumor",
        "Solid Tumor, Adult",
        "Metastatic Tumor",
        "Ovarian Cancer",
        "Ovarian Neoplasms",
        "Ovarian Carcinoma",
        "Metastatic Ovarian Carcinoma",
        "Endometrial Neoplasms",
        "Endometrial Diseases",
        "Metastatic Endometrial Cancer",
        "Triple Negative Breast Cancer",
        "Metastatic Endometrial Carcinoma",
        "Advanced Endometrial Carcinoma",
        "Advanced Ovarian Carcinoma",
        "Gastric Cancer",
        "Advanced Gastric Carcinoma",
        "Metastatic Gastric Cancer",
        "Metastatic Gastric Carcinoma",
        "Small Cell Lung Cancer",
        "Small Cell Lung Carcinoma",
        "Triple Negative Breast Neoplasms",
        "Platinum-resistant Ovarian Cancer",
        "Platinum-refractory Ovarian Carcinoma",
        "CCNE1 Amplification",
        "Hormone Receptor Negative Breast Carcinoma",
        "Human Epidermal Growth Factor 2 Negative Carcinoma of Breast",
        "Progesterone-receptor-positive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "NKT3964",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NiKang 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": 150,
      "start_date": "2024-09-19",
      "completion_date": "2029-05",
      "has_results": false,
      "last_update_posted_date": "2026-04-21",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 19,
      "location_summary": "Little Rock, Arkansas • Los Angeles, California • San Francisco, California + 16 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Lake Mary",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06586957"
    },
    {
      "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": "2026-06-11T02:19:43.080Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01273168"
    },
    {
      "nct_id": "NCT05262400",
      "title": "A Study to Learn About the Study Medicine (Called PF-07220060 in Combination With PF-07104091) In Participants With Breast Cancer and Solid Tumors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Solid Tumors"
      ],
      "interventions": [
        {
          "name": "PF-07220060 + PF-07104091 combination dose escalation",
          "type": "DRUG"
        },
        {
          "name": "PF-07104091 + PF-07220060 + fulvestrant dose expansion",
          "type": "DRUG"
        },
        {
          "name": "PF-07104091 + PF-07220060 + letrozole dose expansion",
          "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": 192,
      "start_date": "2022-03-14",
      "completion_date": "2026-08-23",
      "has_results": false,
      "last_update_posted_date": "2024-11-18",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 12,
      "location_summary": "Los Angeles, California • Santa Monica, California • Boston, Massachusetts + 5 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05262400"
    },
    {
      "nct_id": "NCT05098210",
      "title": "Personalized Neo-Antigen Peptide Vaccine for the Treatment of Stage IIIC-IV Melanoma, Hormone Receptor Positive HER2 Negative Metastatic Refractory Breast Cancer or Stage III-IV Non-Small Cell Lung Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Locally Advanced Cutaneous Melanoma",
        "Locally Advanced Mucosal Melanoma",
        "Metastatic Acral Melanoma",
        "Metastatic Conjunctival Melanoma",
        "Metastatic Cutaneous Melanoma",
        "Metastatic HER2-Negative Breast Carcinoma",
        "Metastatic Hormone Receptor-Positive Breast Carcinoma",
        "Metastatic Lung Non-Small Cell Carcinoma",
        "Metastatic Malignant Solid Neoplasm",
        "Metastatic Mucosal Melanoma",
        "Pathologic Stage IIIC Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IIID Cutaneous Melanoma AJCC v8",
        "Recurrent Cutaneous Melanoma",
        "Recurrent HER2-Negative Breast Carcinoma",
        "Recurrent Hormone Receptor-Positive Breast Carcinoma",
        "Recurrent Lung Non-Small Cell Carcinoma",
        "Recurrent Mucosal Melanoma",
        "Stage III Lung Cancer AJCC v8",
        "Stage IV Lung Cancer AJCC v8",
        "Unresectable Acral Melanoma",
        "Unresectable Cutaneous Melanoma",
        "Unresectable Lung Non-Small Cell Carcinoma",
        "Unresectable Mucosal Melanoma"
      ],
      "interventions": [
        {
          "name": "Neoantigen Peptide Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Poly ICLC",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Fred Hutchinson 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": 25,
      "start_date": "2022-06-09",
      "completion_date": "2028-11-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-12",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05098210"
    },
    {
      "nct_id": "NCT05159518",
      "title": "A Study of PRT2527 in Participants With Advanced Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Sarcoma",
        "Castrate Resistant Prostate Cancer",
        "Hormone Receptor Positive HER2 Negative Breast Cancer",
        "Non-small Cell Lung Cancer",
        "Solid Tumors With Known MYC Amplification"
      ],
      "interventions": [
        {
          "name": "PRT2527",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Prelude Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-02-14",
      "completion_date": "2023-12-06",
      "has_results": false,
      "last_update_posted_date": "2023-12-11",
      "last_synced_at": "2026-06-11T02:19:43.080Z",
      "location_count": 8,
      "location_summary": "Denver, Colorado • Celebration, Florida • Sarasota, Florida + 4 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Celebration",
          "state": "Florida"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05159518"
    }
  ]
}