{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Breast+Density&page=2",
    "query": {
      "intervention": "Breast Density",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Breast+Density&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-23T09:42:24.620Z",
  "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": "NCT04799665",
      "title": "Dedicated Breast CT for Quantitative Breast Density Measurements in Mexican-origin Women in Southern Arizona",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Metabolic Syndrome",
        "Obesity Associated Disorder"
      ],
      "interventions": [
        {
          "name": "Breast CT",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 65 Years · Female only"
      },
      "enrollment_count": 92,
      "start_date": "2022-04-28",
      "completion_date": "2024-05-01",
      "has_results": false,
      "last_update_posted_date": "2024-05-21",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04799665"
    },
    {
      "nct_id": "NCT03972605",
      "title": "Delphinus SoftVue™ ROC Reader Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer Detection",
        "Dense Breast Parenchyma",
        "Benign Breast Findings",
        "Normal Breast Screening",
        "Abnormal Breast Screening"
      ],
      "interventions": [
        {
          "name": "Reading of Automated Breast Ultrasound in conjunction with Screening Mammography",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Delphinus Medical Technologies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 32,
      "start_date": "2019-06-08",
      "completion_date": "2019-07-02",
      "has_results": false,
      "last_update_posted_date": "2020-01-28",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03972605"
    },
    {
      "nct_id": "NCT04711109",
      "title": "Studying the Effect of Denosumab on Preventing Breast Cancer in Women With a BRCA1 Germline Mutation",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "BRCA1 Mutation",
        "Breast Cancer",
        "Breast Diseases",
        "Breast Neoplasms",
        "Breast Carcinoma",
        "Neoplasms"
      ],
      "interventions": [
        {
          "name": "Denosumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 55 Years · Female only"
      },
      "enrollment_count": 300,
      "start_date": "2023-02-14",
      "completion_date": "2033-12",
      "has_results": false,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 47,
      "location_summary": "Los Angeles, California • San Francisco, California • Aurora, Colorado + 38 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04711109"
    },
    {
      "nct_id": "NCT02986360",
      "title": "Informed Implementation of Breast Density Reporting",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Density, Breast Cancer Prevention"
      ],
      "interventions": [
        {
          "name": "Vidscrip educational video",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 75 Years · Female only"
      },
      "enrollment_count": 500,
      "start_date": "2017-05-01",
      "completion_date": "2017-11-30",
      "has_results": false,
      "last_update_posted_date": "2018-09-21",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02986360"
    },
    {
      "nct_id": "NCT00238316",
      "title": "Letrozole in Preventing Breast Cancer in Postmenopausal Women Who Are at Increased Risk for Breast Cancer Due to High Breast Density",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "letrozole",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "NCIC Clinical Trials Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "120 Years",
        "sex": "FEMALE",
        "summary": "Up to 120 Years · Female only"
      },
      "enrollment_count": 68,
      "start_date": "2000-12-05",
      "completion_date": "2009-02-10",
      "has_results": false,
      "last_update_posted_date": "2020-04-02",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00238316"
    },
    {
      "nct_id": "NCT05590949",
      "title": "Observational Study of Bone Complications in People With Post-menopausal Breast Cancer Who Have Stopped Treatment With Denosumab and Aromatase Inhibitors",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Physical Evaluation",
          "type": "OTHER"
        },
        {
          "name": "Dual-energy X-ray absorptiometry scans",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Trabecular Bone Score",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "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": 100,
      "start_date": "2022-10-18",
      "completion_date": "2026-10-18",
      "has_results": false,
      "last_update_posted_date": "2026-09-03",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 7,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05590949"
    },
    {
      "nct_id": "NCT00695968",
      "title": "Breast Density and the Role of Preoperative Mammography, Ultrasound, Elastography and MRI",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 80 Years · Female only"
      },
      "enrollment_count": 9,
      "start_date": "2008-04",
      "completion_date": "2011-12",
      "has_results": false,
      "last_update_posted_date": "2019-04-18",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00695968"
    },
    {
      "nct_id": "NCT03220893",
      "title": "Molecular Breast Imaging and Digital Breast Tomosynthesis in Screening Patients With Dense Breast Tissue",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Digital Breast Tomosynthesis (DBT)",
          "type": "PROCEDURE"
        },
        {
          "name": "Scintimammography",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "RADIATION"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 75 Years · Female only"
      },
      "enrollment_count": 3023,
      "start_date": "2017-06-14",
      "completion_date": "2024-11-01",
      "has_results": true,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 5,
      "location_summary": "Detroit, Michigan • Rochester, Minnesota • Toledo, Ohio + 2 more",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Toledo",
          "state": "Ohio"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "La Crosse",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03220893"
    },
    {
      "nct_id": "NCT05787249",
      "title": "Improving Utilization of Supplemental Breast MRI Screening for Women With Extremely Dense Breasts",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Patient nudge",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Provider nudge",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "74 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 74 Years · Female only"
      },
      "enrollment_count": 1358,
      "start_date": "2023-10-04",
      "completion_date": "2025-04-04",
      "has_results": false,
      "last_update_posted_date": "2026-01-08",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 1,
      "location_summary": "Bala-Cynwyd, Pennsylvania",
      "locations": [
        {
          "city": "Bala-Cynwyd",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05787249"
    },
    {
      "nct_id": "NCT00084344",
      "title": "Effect of 4-Hydroxytamoxifen Gel on Breast Density, Salivary Sex Steroids, and Quality of Life in Premenopausal Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "4-hydroxytamoxifen",
          "type": "DRUG"
        },
        {
          "name": "breast imaging study",
          "type": "PROCEDURE"
        },
        {
          "name": "radiomammography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "30 Years to 50 Years · Female only"
      },
      "enrollment_count": null,
      "start_date": "2003-04",
      "completion_date": "2004-07",
      "has_results": false,
      "last_update_posted_date": "2012-05-30",
      "last_synced_at": "2026-09-23T09:42:24.620Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00084344"
    }
  ]
}