{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Breast+Cancer+Stage+0&page=5",
    "query": {
      "condition": "Breast Cancer Stage 0",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 323,
    "total_pages": 33,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Breast+Cancer+Stage+0&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Breast+Cancer+Stage+0&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T05:25:38.540Z",
  "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": "NCT02137252",
      "title": "Naltrexone RCT for Treatment-Emergent Fatigue in Patients Receiving Radiation Therapy for Breast Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Invasive Breast Cancer (Stage I-III)",
        "Ductal Carcinoma in Situ",
        "Lobular Carcinoma in Situ",
        "Lobular Carcinoma",
        "Fatigue Related to Cancer Treatment"
      ],
      "interventions": [
        {
          "name": "Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Sugar Pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dana-Farber 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": 3,
      "start_date": "2014-05",
      "completion_date": "2015-08-01",
      "has_results": true,
      "last_update_posted_date": "2021-11-16",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02137252"
    },
    {
      "nct_id": "NCT01009437",
      "title": "Ritonavir and Its Effects on Biomarkers in Women Undergoing Surgery for Newly Diagnosed Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "ritonavir",
          "type": "DRUG"
        },
        {
          "name": "therapeutic conventional surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "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": 28,
      "start_date": "2010-05-26",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2017-12-05",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 2,
      "location_summary": "Minneapolis, Minnesota • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01009437"
    },
    {
      "nct_id": "NCT04084730",
      "title": "Study of 3-Day Partial Breast Radiation Therapy in Women With Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Invasive Ductal Breast Carcinoma",
        "Invasive Ductal Carcinoma, Breast",
        "DCIS",
        "DCIS Grade 1",
        "DCIS Grade 2",
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Accelerated Partial Breast Irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "45 Years and older · Female only"
      },
      "enrollment_count": 280,
      "start_date": "2019-08-30",
      "completion_date": "2027-08-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-21",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 9,
      "location_summary": "Norwalk, Connecticut • Miami, Florida • Basking Ridge, New Jersey + 6 more",
      "locations": [
        {
          "city": "Norwalk",
          "state": "Connecticut"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04084730"
    },
    {
      "nct_id": "NCT05810025",
      "title": "FHIR-Enhanced RealRisks to Improve Accuracy of Breast Cancer Risk Assessments",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "RealRisks",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "74 Years",
        "sex": "FEMALE",
        "summary": "35 Years to 74 Years · Female only"
      },
      "enrollment_count": 70,
      "start_date": "2023-05-01",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-11",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05810025"
    },
    {
      "nct_id": "NCT06750484",
      "title": "Trial of Trastuzumab Deruxtecan in Previously Treated HER2",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer Metastatic"
      ],
      "interventions": [
        {
          "name": "Trastuzumab Deruxtecan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2025-06-20",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 3,
      "location_summary": "New Haven, Connecticut • Atlanta, Georgia • Rochester, New York",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06750484"
    },
    {
      "nct_id": "NCT00859157",
      "title": "Pain After Tumescent Mastectomy or Standard Mastectomy in Women With Stage I, Stage II, or Stage III Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Pain",
        "Perioperative/Postoperative Complications"
      ],
      "interventions": [
        {
          "name": "therapeutic conventional surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 120 Years · Female only"
      },
      "enrollment_count": 74,
      "start_date": "2008-10",
      "completion_date": "2014-01",
      "has_results": false,
      "last_update_posted_date": "2017-06-21",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00859157"
    },
    {
      "nct_id": "NCT00115505",
      "title": "Quality of Life, Employment, and Informal Care Costs in Women Who Are Receiving Chemotherapy for Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "quality-of-life assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "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": 307,
      "start_date": "2005-10",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2017-08-18",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 227,
      "location_summary": "Mobile, Alabama • Fort Smith, Arkansas • Fresno, California + 154 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Modesto",
          "state": "California"
        },
        {
          "city": "Redding",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00115505"
    },
    {
      "nct_id": "NCT00556907",
      "title": "Targeted Intra-Operative Radiotherapy for the Management of Ductal Carcinoma In-Situ of the Breast",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Intraoperative radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "Intraoperative radiotherapy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DEVICE"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 36,
      "start_date": "2007-10",
      "completion_date": "2016-11",
      "has_results": true,
      "last_update_posted_date": "2025-11-06",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00556907"
    },
    {
      "nct_id": "NCT06401889",
      "title": "Enhancing Skin Appearance and Quality of Life in Breast Cancer Survivors on Aromatase Inhibitor Therapy",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Anatomic Stage 0 Breast Cancer AJCC v8",
        "Anatomic Stage I Breast Cancer AJCC v8",
        "Anatomic Stage II Breast Cancer AJCC v8",
        "Anatomic Stage III Breast Cancer AJCC v8",
        "Breast Adenocarcinoma",
        "Estrogen Receptor-Positive Breast Carcinoma",
        "Progesterone Receptor-Positive Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "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": 35,
      "start_date": "2024-07-19",
      "completion_date": "2027-07-19",
      "has_results": false,
      "last_update_posted_date": "2026-05-19",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06401889"
    },
    {
      "nct_id": "NCT06153836",
      "title": "Neurotization of the Nipple Areolar Complex to Restore Sensation for Patients With Breast Cancer Undergoing Nipple Sparing Mastectomy and Reconstruction",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anatomic Stage 0 Breast Cancer AJCC v8",
        "Anatomic Stage I Breast Cancer AJCC v8",
        "Anatomic Stage IIA Breast Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Neurotization Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Subcutaneous Mastectomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "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": 45,
      "start_date": "2023-12-05",
      "completion_date": "2028-07-19",
      "has_results": false,
      "last_update_posted_date": "2026-10-02",
      "last_synced_at": "2026-10-07T05:25:38.540Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06153836"
    }
  ]
}