{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Breast+Cancer%2C+Stage+0",
    "query": {
      "condition": "Breast Cancer, Stage 0"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 322,
    "total_pages": 33,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Breast+Cancer%2C+Stage+0&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T07:47:47.564Z",
  "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": "NCT00769379",
      "title": "Radiation Therapy With or Without Trastuzumab in Treating Women With Ductal Carcinoma In Situ Who Have Undergone Lumpectomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Breast Ductal Carcinoma In Situ"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Trastuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Whole Breast Irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 2014,
      "start_date": "2008-12-10",
      "completion_date": "2025-06-02",
      "has_results": true,
      "last_update_posted_date": "2025-06-12",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 1249,
      "location_summary": "Anniston, Alabama • Mobile, Alabama • Anchorage, Alaska + 764 more",
      "locations": [
        {
          "city": "Anniston",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00769379"
    },
    {
      "nct_id": "NCT03025139",
      "title": "Mindfulness Meditation or Survivorship Education in Improving Behavioral Symptoms in Younger Stage 0-III Breast Cancer Survivors (Pathways to Wellness)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer Survivor",
        "Early-Stage Breast Carcinoma",
        "Stage 0 Breast Cancer",
        "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": "Educational Intervention",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Meditation Therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Jonsson Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "Up to 49 Years · Female only"
      },
      "enrollment_count": 96,
      "start_date": "2017-02-20",
      "completion_date": "2024-02-01",
      "has_results": false,
      "last_update_posted_date": "2022-07-21",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 3,
      "location_summary": "Los Angeles, California • Baltimore, Maryland • Boston, Massachusetts",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03025139"
    },
    {
      "nct_id": "NCT04496739",
      "title": "Making Informed Choices on Incorporating Chemoprevention Into Care (MiCHOICE)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atypical Hyperplasia of the Breast",
        "Lobular Breast Carcinoma In Situ",
        "Pleomorphic Lobular Breast Carcinoma In Situ"
      ],
      "interventions": [
        {
          "name": "Cancer Educational Materials",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Decision Aid",
          "type": "OTHER"
        },
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 412,
      "start_date": "2020-10-23",
      "completion_date": "2028-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 96,
      "location_summary": "Antioch, California • Costa Mesa, California • Duarte, California + 67 more",
      "locations": [
        {
          "city": "Antioch",
          "state": "California"
        },
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04496739"
    },
    {
      "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": "2026-05-22T07:47:47.564Z",
      "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": "NCT03505372",
      "title": "Role of Contrast Enhanced Spectral Mammography to Predict Upgrade Rates of Biopsy Proven Atypical Ductal Hyperplasia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atypical Ductal Hyperplasia"
      ],
      "interventions": [
        {
          "name": "Contrast enhanced mammography",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "30 Years and older · Female only"
      },
      "enrollment_count": 5,
      "start_date": "2018-05-10",
      "completion_date": "2019-06-28",
      "has_results": true,
      "last_update_posted_date": "2020-02-11",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03505372"
    },
    {
      "nct_id": "NCT04074720",
      "title": "Prospective Breast Cancer Biospecimen Collection",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Invasive Breast Cancer",
        "Carcinoma in Situ of the Breast"
      ],
      "interventions": [
        {
          "name": "Tissue Sample collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood Sample Collection",
          "type": "OTHER"
        },
        {
          "name": "Rectal Swab",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2018-05-10",
      "completion_date": "2028-07-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-03",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04074720"
    },
    {
      "nct_id": "NCT02662335",
      "title": "Computerized Cognitive Retraining in Improving Cognitive Function in Breast Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer Survivor",
        "Stage 0 Breast Cancer",
        "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": "Computer-Assisted Cognitive Training",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Standard Follow-Up Care",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "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": 15,
      "start_date": "2016-05",
      "completion_date": "2017-11-30",
      "has_results": false,
      "last_update_posted_date": "2017-12-13",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02662335"
    },
    {
      "nct_id": "NCT02996240",
      "title": "Breast, Omega 3 Free Fatty Acid, Ph 0",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breastcancer"
      ],
      "interventions": [
        {
          "name": "Omega-3 FFA",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 21,
      "start_date": "2017-06-12",
      "completion_date": "2021-02-22",
      "has_results": false,
      "last_update_posted_date": "2021-03-17",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02996240"
    },
    {
      "nct_id": "NCT01100489",
      "title": "Breast-Conserving Surgery Followed by Radiation Therapy With MRI-Detected Stage I or Stage II Breast Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Ductal Breast Carcinoma in Situ",
        "Estrogen Receptor-negative Breast Cancer",
        "Estrogen Receptor-positive Breast Cancer",
        "HER2-negative Breast Cancer",
        "HER2-positive Breast Cancer",
        "Invasive Ductal Breast Carcinoma",
        "Invasive Lobular Breast Carcinoma",
        "Male Breast Cancer",
        "Medullary Ductal Breast Carcinoma With Lymphocytic Infiltrate",
        "Mucinous Ductal Breast Carcinoma",
        "Papillary Ductal Breast Carcinoma",
        "Progesterone Receptor-negative Breast Cancer",
        "Progesterone Receptor-positive Breast Cancer",
        "Stage I Breast Cancer",
        "Stage II Breast Cancer",
        "Tubular Ductal Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "external beam radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "questionnaire administration",
          "type": "OTHER"
        },
        {
          "name": "therapeutic conventional surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Case Comprehensive 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": 0,
      "start_date": "2010-02",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2011-12-08",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 3,
      "location_summary": "Cleveland, Ohio • Orange, Ohio • Westlake, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Orange",
          "state": "Ohio"
        },
        {
          "city": "Westlake",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01100489"
    },
    {
      "nct_id": "NCT01556243",
      "title": "Breast-Conserving Surgery and Radiation Therapy in Patients With Multiple Ipsilateral Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "therapeutic conventional surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "whole breast irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "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": 270,
      "start_date": "2012-07",
      "completion_date": "2023-04-15",
      "has_results": true,
      "last_update_posted_date": "2023-11-30",
      "last_synced_at": "2026-05-22T07:47:47.564Z",
      "location_count": 350,
      "location_summary": "Hot Springs, Arkansas • Dublin, California • Emeryville, California + 215 more",
      "locations": [
        {
          "city": "Hot Springs",
          "state": "Arkansas"
        },
        {
          "city": "Dublin",
          "state": "California"
        },
        {
          "city": "Emeryville",
          "state": "California"
        },
        {
          "city": "Emeryville",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01556243"
    }
  ]
}