{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+biomarker&page=31",
    "query": {
      "intervention": "blood biomarker",
      "page": 31
    },
    "page_size": 10
  },
  "pagination": {
    "page": 31,
    "page_size": 10,
    "total_count": 1741,
    "total_pages": 175,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+biomarker&page=32&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+biomarker&page=30&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T10:49:06.510Z",
  "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": "NCT03629717",
      "title": "RANKL Inhibition and Breast Tissue Biomarkers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Breast Cancer Prevention",
        "Mammographic Density"
      ],
      "interventions": [
        {
          "name": "Ultrasound-guided core needle biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Denosumab",
          "type": "DRUG"
        },
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Calcium",
          "type": "DRUG"
        },
        {
          "name": "Vitamin D",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "35 Years and older · Female only"
      },
      "enrollment_count": 10,
      "start_date": "2018-06-01",
      "completion_date": "2018-12-03",
      "has_results": false,
      "last_update_posted_date": "2024-10-16",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03629717"
    },
    {
      "nct_id": "NCT00602433",
      "title": "Hormone Changes in Women With Stage IIIB or Stage IV Non-Small Cell Lung Cancer Receiving Erlotinib",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Advanced Nonsmall Cell Lung Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Northwestern University",
      "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": 10,
      "start_date": "2007-12",
      "completion_date": "2009-08",
      "has_results": false,
      "last_update_posted_date": "2011-04-15",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00602433"
    },
    {
      "nct_id": "NCT01189240",
      "title": "RO4929097and Bevacizumab in Treating Patients With Progressive or Recurrent Malignant Glioma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Adult Anaplastic Astrocytoma",
        "Adult Anaplastic Oligodendroglioma",
        "Adult Giant Cell Glioblastoma",
        "Adult Glioblastoma",
        "Adult Gliosarcoma",
        "Recurrent Adult Brain Tumor"
      ],
      "interventions": [
        {
          "name": "gamma-secretase/Notch signalling pathway inhibitor RO4929097",
          "type": "DRUG"
        },
        {
          "name": "bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "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": 13,
      "start_date": "2010-12",
      "completion_date": "2015-02",
      "has_results": true,
      "last_update_posted_date": "2015-12-14",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • San Francisco, California • Tampa, Florida + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01189240"
    },
    {
      "nct_id": "NCT03146650",
      "title": "Nivolumab and Ipilimumab in Treating Patients With Metastatic/Recurrent ACC of All Sites and Non-ACC Salivary Gland Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Major Salivary Gland Carcinoma",
        "Minor Salivary Gland Carcinoma",
        "Recurrent Salivary Gland Carcinoma",
        "Stage IV Major Salivary Gland Carcinoma",
        "Stage IVA Major Salivary Gland Carcinoma",
        "Stage IVB Major Salivary Gland Carcinoma",
        "Stage IVC Major Salivary Gland Carcinoma"
      ],
      "interventions": [
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2017-05-19",
      "completion_date": "2025-08-11",
      "has_results": true,
      "last_update_posted_date": "2024-01-18",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03146650"
    },
    {
      "nct_id": "NCT05341349",
      "title": "Stereotactic Radiosurgery and Immune Checkpoint Inhibitors With NovoTTF-200M for the Treatment of Melanoma Brain Metastases",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Melanoma of Unknown Primary",
        "Metastatic Malignant Neoplasm in the Brain",
        "Metastatic Melanoma",
        "Metastatic Mucosal Melanoma",
        "Metastatic Ocular Melanoma",
        "Pathologic Stage IV Cutaneous Melanoma AJCC v8"
      ],
      "interventions": [
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Stereotactic Radiosurgery",
          "type": "RADIATION"
        },
        {
          "name": "Tumor Treating Fields Therapy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "RADIATION",
        "PROCEDURE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2022-10-13",
      "completion_date": "2024-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-23",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05341349"
    },
    {
      "nct_id": "NCT07076238",
      "title": "Biomarkers of Phage Treatment Response in NTM and Other Infections",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Nontuberculous Mycobacterial Lung Disease"
      ],
      "interventions": [
        {
          "name": "Bacteriophage Treatment",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2025-06-25",
      "completion_date": "2032-06-25",
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07076238"
    },
    {
      "nct_id": "NCT00079326",
      "title": "Trastuzumab and Ixabepilone in Treating Women With HER2-Positive Metastatic Breast Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HER2-positive Breast Cancer",
        "Recurrent Breast Cancer",
        "Stage IV Breast Cancer"
      ],
      "interventions": [
        {
          "name": "trastuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "ixabepilone",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER"
      ],
      "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": 39,
      "start_date": "2004-01",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2014-06-02",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00079326"
    },
    {
      "nct_id": "NCT02089555",
      "title": "African American Alzheimer's Progression Markers - CSF and Neuro-Imaging",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mild Cognitive Impairment",
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "Lumbar puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging (MRI)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "60 Years to 85 Years"
      },
      "enrollment_count": 135,
      "start_date": "2013-09",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2016-06-23",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02089555"
    },
    {
      "nct_id": "NCT06070688",
      "title": "An Adjunct Test Distinguishing Bacterial From Viral Etiology Improves Resource Utilization and Efficiency in the ED.",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiratory Tract Infections"
      ],
      "interventions": [
        {
          "name": "MeMed BV® biomarker test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Usual care",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2023-12-11",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06070688"
    },
    {
      "nct_id": "NCT01615705",
      "title": "Biomarker Sub Study of the Compression Stockings to Prevent the Post-Thrombotic Syndrome (SOX) Trial",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Deep Venous Thrombosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Sir Mortimer B. Davis - Jewish General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 803,
      "start_date": "2004-06",
      "completion_date": "2012-02",
      "has_results": false,
      "last_update_posted_date": "2012-06-11",
      "last_synced_at": "2026-10-17T10:49:06.510Z",
      "location_count": 3,
      "location_summary": "Detroit, Michigan • Durham, North Carolina • Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01615705"
    }
  ]
}