{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=HER2-+Breast+Cancer&page=20",
    "query": {
      "condition": "HER2- Breast Cancer",
      "page": 20
    },
    "page_size": 10
  },
  "pagination": {
    "page": 20,
    "page_size": 10,
    "total_count": 1359,
    "total_pages": 136,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=HER2-+Breast+Cancer&page=21&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=HER2-+Breast+Cancer&page=19&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-26T22:11:31.732Z",
  "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": "NCT01928186",
      "title": "FLT PET in Measuring Treatment Response in Patients With Newly Diagnosed Estrogen Receptor-Positive, HER2-Negative Stage I-III Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Estrogen Receptor Positive",
        "HER2/Neu Negative",
        "Male Breast Carcinoma",
        "Stage IA Breast Cancer",
        "Stage IB Breast Cancer",
        "Stage IIA Breast Cancer",
        "Stage IIB Breast Cancer",
        "Stage IIIA Breast Cancer",
        "Stage IIIB Breast Cancer",
        "Stage IIIC Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Fluorothymidine F-18",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Run-in (short pre-surgery course) of endocrine-targeted therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2011-09",
      "completion_date": "2015-07-20",
      "has_results": true,
      "last_update_posted_date": "2018-05-15",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01928186"
    },
    {
      "nct_id": "NCT03493854",
      "title": "A Study to Evaluate the Pharmacokinetics, Efficacy, and Safety of Subcutaneous Administration of the Fixed-Dose Combination of Pertuzumab and Trastuzumab in Combination With Chemotherapy in Participants With HER2-Positive Early Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Early Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Pertuzumab IV",
          "type": "DRUG"
        },
        {
          "name": "FDC of Pertuzumab and Trastuzumab SC",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab IV",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab SC",
          "type": "DRUG"
        },
        {
          "name": "Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Post-operative Radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "Hormone Therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "RADIATION"
      ],
      "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": 500,
      "start_date": "2018-06-14",
      "completion_date": "2023-06-02",
      "has_results": true,
      "last_update_posted_date": "2024-06-26",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 4,
      "location_summary": "Rockville, Maryland • Farmington, New Mexico • Charlotte, North Carolina + 1 more",
      "locations": [
        {
          "city": "Rockville",
          "state": "Maryland"
        },
        {
          "city": "Farmington",
          "state": "New Mexico"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Lakewood",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03493854"
    },
    {
      "nct_id": "NCT01151046",
      "title": "Trial of Exemestane +/- MM-121 in Postmenopausal Women With Locally Advanced or Metastatic Estrogen Receptor Positive and/or Progesterone Receptor Positive Her2 Negative Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Her2 Negative Breast Cancer Patients"
      ],
      "interventions": [
        {
          "name": "MM-121",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Exemestane",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merrimack 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": 118,
      "start_date": "2010-06",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2016-05-12",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Glendale, Arizona • Anaheim, California + 13 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01151046"
    },
    {
      "nct_id": "NCT06774027",
      "title": "Prospective Registry of ADC as First- and Second-line Treatment for Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HER2-negative Breast Cancer",
        "HER2 Negative Breast Carcinoma",
        "Metastatic Breast Cancer",
        "HR+ HER2 Breast Cancer",
        "Metastatic Triple Negative Breast Cancers",
        "Metastatic Triple-Negative Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Specimen collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Non-Investigational Antibody-Drug Conjugates (ADC)",
          "type": "DRUG"
        },
        {
          "name": "Medical Record Review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2025-10-08",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-16",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 3,
      "location_summary": "San Francisco, California • The Bronx, New York • Durham, North Carolina",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06774027"
    },
    {
      "nct_id": "NCT04214288",
      "title": "A Study to Investigate Efficacy and Safety With Oral AZD9833 Compared With Intramuscular Fulvestrant in Post-menopausal Women at Least 18 Years of Age With Advanced ER-positive HER2 Negative Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced ER-Positive HER2-Negative Breast Cancer"
      ],
      "interventions": [
        {
          "name": "AZD9833",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "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": 240,
      "start_date": "2020-04-22",
      "completion_date": "2027-06-16",
      "has_results": true,
      "last_update_posted_date": "2026-08-26",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 9,
      "location_summary": "Birmingham, Alabama • Long Beach, California • Fort Myers, Florida + 6 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        },
        {
          "city": "St. Petersburg",
          "state": "Florida"
        },
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04214288"
    },
    {
      "nct_id": "NCT00817362",
      "title": "Efficacy and Safety of IPI-504 With Trastuzumab Pretreated, Locally Advanced or Metastatic HER2 Positive Breast Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "HER2 Positive Breast Cancer",
        "Metastatic Breast Cancer",
        "Cancer of the Breast"
      ],
      "interventions": [
        {
          "name": "IPI-504",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Infinity Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2009-03",
      "completion_date": "2011-05",
      "has_results": false,
      "last_update_posted_date": "2012-12-11",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 10,
      "location_summary": "Palm Springs, California • Boca Raton, Florida • Davie, Florida + 6 more",
      "locations": [
        {
          "city": "Palm Springs",
          "state": "California"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "Davie",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00817362"
    },
    {
      "nct_id": "NCT01957514",
      "title": "Collecting, Analyzing, and Storing Samples From Patients With Metastatic, Triple Negative Breast Cancer Receiving Anti-cancer Therapy",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Estrogen Receptor Negative",
        "HER2/Neu Negative",
        "Progesterone Receptor Negative",
        "Stage IV Breast Cancer AJCC v6 and v7",
        "Triple-Negative Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Cytology Specimen Collection Procedure",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "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": 31,
      "start_date": "2013-10-28",
      "completion_date": "2018-06-30",
      "has_results": false,
      "last_update_posted_date": "2021-09-30",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 2,
      "location_summary": "Seattle, Washington • Tacoma, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Tacoma",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01957514"
    },
    {
      "nct_id": "NCT07383506",
      "title": "A Study of Mutant Selective-Inhibitor (CGT6297), in Patients With Advanced Solid Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "PIK3CA Mutations",
        "Advanced Solid Tumors, Adult",
        "Endometrial Cancer",
        "HR Positive/HER-2 Negative Breast Cancer",
        "HER2-low Breast Cancer"
      ],
      "interventions": [
        {
          "name": "CGT6297",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cogent Biosciences, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 90,
      "start_date": "2026-07-23",
      "completion_date": "2029-08",
      "has_results": false,
      "last_update_posted_date": "2026-10-22",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 12,
      "location_summary": "Scottsdale, Arizona • Los Angeles, California • Palo Alto, California + 9 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07383506"
    },
    {
      "nct_id": "NCT00194714",
      "title": "Vaccine Therapy in Treating Patients With Stage IV HLA-A2 and HER2 Positive Breast or Ovarian Cancer Receiving Trastuzumab",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "HER2/Neu Positive",
        "HLA-A2 Positive Cells Present",
        "Stage IV Breast Cancer",
        "Stage IV Ovarian Cancer"
      ],
      "interventions": [
        {
          "name": "HER-2/neu Peptide Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "19 Years and older · Female only"
      },
      "enrollment_count": 22,
      "start_date": "2016-05",
      "completion_date": "2023-05-22",
      "has_results": true,
      "last_update_posted_date": "2024-06-06",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00194714"
    },
    {
      "nct_id": "NCT03291938",
      "title": "IACS-010759 in Advanced Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced Malignant Solid Neoplasm",
        "Anatomic Stage III Breast Cancer AJCC v8",
        "Anatomic Stage IIIA Breast Cancer AJCC v8",
        "Anatomic Stage IIIB Breast Cancer AJCC v8",
        "Anatomic Stage IIIC Breast Cancer AJCC v8",
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Estrogen Receptor Negative",
        "HER2/Neu Negative",
        "Metastatic Malignant Solid Neoplasm",
        "Pancreatic Ductal Adenocarcinoma",
        "Progesterone Receptor Negative",
        "Prognostic Stage III Breast Cancer AJCC v8",
        "Prognostic Stage IIIA Breast Cancer AJCC v8",
        "Prognostic Stage IIIB Breast Cancer AJCC v8",
        "Prognostic Stage IIIC Breast Cancer AJCC v8",
        "Prognostic Stage IV Breast Cancer AJCC v8",
        "Recurrent Lymphoma",
        "Refractory Lymphoma",
        "Stage II Pancreatic Cancer AJCC v8",
        "Stage IIA Pancreatic Cancer AJCC v8",
        "Stage IIB Pancreatic Cancer AJCC v8",
        "Stage III Pancreatic Cancer AJCC v8",
        "Stage IV Pancreatic Cancer AJCC v8",
        "Triple-Negative Breast Carcinoma",
        "Unresectable Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Oxidative Phosphorylation Inhibitor IACS-010759",
          "type": "DRUG"
        },
        {
          "name": "Pharmacodynamic Study",
          "type": "OTHER"
        },
        {
          "name": "Pharmacokinetic Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson 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": 29,
      "start_date": "2017-11-13",
      "completion_date": "2020-11-23",
      "has_results": false,
      "last_update_posted_date": "2020-11-24",
      "last_synced_at": "2026-10-26T22:11:31.732Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03291938"
    }
  ]
}