{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=HER2+Negative+Breast+Carcinoma&page=25",
    "query": {
      "condition": "HER2 Negative Breast Carcinoma",
      "page": 25
    },
    "page_size": 10
  },
  "pagination": {
    "page": 25,
    "page_size": 10,
    "total_count": 684,
    "total_pages": 69,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=HER2+Negative+Breast+Carcinoma&page=26&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=HER2+Negative+Breast+Carcinoma&page=24&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-16T19:56:08.845Z",
  "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": "NCT04553133",
      "title": "PF-07104091 as a Single Agent and in Combination Therapy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Small Cell Lung Cancer",
        "Ovarian Cancer",
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "PF-07104091 monotherapy dose escalation",
          "type": "DRUG"
        },
        {
          "name": "PF-07104091 + palbociclib + fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "PF-07104091 + palbociclib + letrozole",
          "type": "DRUG"
        },
        {
          "name": "PF-07104091 monotherapy dose expansion (ovarian)",
          "type": "DRUG"
        },
        {
          "name": "PF-07104091 monotherapy dose expansion (SCLC)",
          "type": "DRUG"
        },
        {
          "name": "PF-07104091 + Fulvestrant (post CDK4/6)",
          "type": "DRUG"
        },
        {
          "name": "PF-0704091 + Fulvestrant (post CDK4/6)",
          "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": 157,
      "start_date": "2020-09-16",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 17,
      "location_summary": "Clive, Iowa • Des Moines, Iowa • Louisville, Kentucky + 7 more",
      "locations": [
        {
          "city": "Clive",
          "state": "Iowa"
        },
        {
          "city": "Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04553133"
    },
    {
      "nct_id": "NCT04182516",
      "title": "Study of NMS-03305293 in Pts with Selected Advanced/Metastatic Solid Tumors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced/Metastatic Solid Tumors"
      ],
      "interventions": [
        {
          "name": "NMS-03305293",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nerviano Medical Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 52,
      "start_date": "2019-11-25",
      "completion_date": "2024-05-16",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04182516"
    },
    {
      "nct_id": "NCT07541079",
      "title": "A Study Evaluating Adherence, Tolerability, and Patient Reported Outcomes of Giredestrant in Participants With ER+/HER2- Early Breast Cancer Who Are Intolerant to Adjuvant Aromatase Inhibitor Therapy (novERA Breast Cancer)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Early Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Giredestrant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Genentech, Inc.",
      "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": 300,
      "start_date": "2026-08-25",
      "completion_date": "2034-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-09",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 4,
      "location_summary": "Fountain Valley, California • Washington D.C., District of Columbia • Sterling Heights, Michigan + 1 more",
      "locations": [
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Sterling Heights",
          "state": "Michigan"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07541079"
    },
    {
      "nct_id": "NCT05759949",
      "title": "First-in-Human Study of RLY-5836 in Advanced Breast Cancer and Other Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "PIK3CA Mutation",
        "Solid Tumor, Adult",
        "HER2-negative Breast Cancer",
        "Breast Cancer",
        "Metastatic Breast Cancer",
        "Advanced Breast Cancer",
        "Unresectable Solid Tumor",
        "Hormone Receptor Positive Tumor"
      ],
      "interventions": [
        {
          "name": "RLY-5836",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Palbociclib",
          "type": "DRUG"
        },
        {
          "name": "Ribociclib",
          "type": "DRUG"
        },
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Relay 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": 41,
      "start_date": "2023-03-29",
      "completion_date": "2025-04-11",
      "has_results": false,
      "last_update_posted_date": "2025-05-16",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 7,
      "location_summary": "Orlando, Florida • Indianapolis, Indiana • Boston, Massachusetts + 4 more",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05759949"
    },
    {
      "nct_id": "NCT07222215",
      "title": "PhII Randomized CAPecitabine + ELAcestrant vs. Capecitabine Alone in ER+ Breast Cancer (CAPELA)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Estrogen-receptor-positive Breast Cancer",
        "Metastatic Breast Cancer",
        "Breast Cancer",
        "Hormone Receptor Positive Breast Cancer",
        "Human Epidermal Growth Factor 2 Negative Carcinoma of Breast",
        "HER2- Breast Cancer",
        "ESR1 Gene Mutation",
        "ER Wildtype",
        "Breast Neoplasms"
      ],
      "interventions": [
        {
          "name": "Capecitabine",
          "type": "DRUG"
        },
        {
          "name": "Elacestrant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kristina A. Fanucci",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 297,
      "start_date": "2026-01-16",
      "completion_date": "2030-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-26",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07222215"
    },
    {
      "nct_id": "NCT04031885",
      "title": "A Study of Abemaciclib (LY2835219) in Combination With Fulvestrant Compared to Chemotherapy in Women With HR Positive, HER2 Negative Metastatic Breast Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Metastatic Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Standard Chemotherapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "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": 4,
      "start_date": "2019-08-14",
      "completion_date": "2020-08-11",
      "has_results": true,
      "last_update_posted_date": "2021-08-24",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 55,
      "location_summary": "Avondale, Arizona • Phoenix, Arizona • Yuma, Arizona + 51 more",
      "locations": [
        {
          "city": "Avondale",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Yuma",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04031885"
    },
    {
      "nct_id": "NCT05141708",
      "title": "Treatment Patterns and Clinical Outcomes Among Talazoparib-Treated Adults With HER2-Negative mBC With gBRCA1/2m",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Metastatic Breast Cancer",
        "Breast Neoplasms"
      ],
      "interventions": [
        {
          "name": "Talazoparib",
          "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": 33,
      "start_date": "2021-12-17",
      "completion_date": "2022-06-30",
      "has_results": true,
      "last_update_posted_date": "2024-02-16",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05141708"
    },
    {
      "nct_id": "NCT05191004",
      "title": "Study of NUV-422 in Combination With Fulvestrant in Patients With HR+HER2- aBC",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Advanced Breast Cancer",
        "Metastatic Breast Cancer",
        "Breast Cancer",
        "Breast Carcinoma",
        "Cancer of the Breast",
        "Cancer of Breast",
        "Malignant Tumor of Breast",
        "Breast Tumor"
      ],
      "interventions": [
        {
          "name": "NUV-422",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nuvation Bio Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2022-09",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2023-07-11",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 5,
      "location_summary": "Anaheim, California • Fountain Valley, California • Canton, Ohio + 2 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Canton",
          "state": "Ohio"
        },
        {
          "city": "Gettysburg",
          "state": "Pennsylvania"
        },
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05191004"
    },
    {
      "nct_id": "NCT04450706",
      "title": "Functional Precision Oncology for Metastatic Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HER2-negative Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Precision Medicine",
          "type": "OTHER"
        },
        {
          "name": "Physican Decision Making",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2021-02-16",
      "completion_date": "2024-09-05",
      "has_results": false,
      "last_update_posted_date": "2024-10-28",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04450706"
    },
    {
      "nct_id": "NCT02398773",
      "title": "FES PET/CT in Predicting Response in Patients With Newly Diagnosed Metastatic Breast Cancer Receiving Endocrine Therapy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HER2/Neu Negative",
        "Progesterone Receptor Negative",
        "Progesterone Receptor Positive",
        "Stage IV Breast Cancer AJCC v6 and v7"
      ],
      "interventions": [
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "F-18 16 Alpha-Fluoroestradiol",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "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": 99,
      "start_date": "2016-05-04",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-29",
      "last_synced_at": "2026-10-16T19:56:08.845Z",
      "location_count": 25,
      "location_summary": "Birmingham, Alabama • Duarte, California • Los Angeles, California + 16 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02398773"
    }
  ]
}