{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+blood+draw&page=66",
    "query": {
      "intervention": "Biomarker blood draw",
      "page": 66
    },
    "page_size": 10
  },
  "pagination": {
    "page": 66,
    "page_size": 10,
    "total_count": 1746,
    "total_pages": 175,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+blood+draw&page=67&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+blood+draw&page=65&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-30T20:03:10.367Z",
  "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": "NCT03727087",
      "title": "Blood Sample Collection to Evaluate Biomarkers in Subjects With Untreated Melanoma",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Melanoma"
      ],
      "interventions": [
        {
          "name": "Blood Sample Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Exact Sciences Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 348,
      "start_date": "2019-01-10",
      "completion_date": "2020-03-24",
      "has_results": false,
      "last_update_posted_date": "2021-02-10",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 36,
      "location_summary": "Little Rock, Arkansas • Laguna Hills, California • Palm Springs, California + 32 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Palm Springs",
          "state": "California"
        },
        {
          "city": "Van Nuys",
          "state": "California"
        },
        {
          "city": "Middletown",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03727087"
    },
    {
      "nct_id": "NCT02020707",
      "title": "Nab-Paclitaxel and Bevacizumab in Treating Patients With Unresectable Stage IV Melanoma or Gynecological Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cervical Adenocarcinoma",
        "Cervical Adenosarcoma",
        "Cervical Adenosquamous Carcinoma",
        "Cervical Carcinosarcoma",
        "Cervical Squamous Cell Carcinoma",
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Endometrial Adenosquamous Carcinoma",
        "Endometrial Clear Cell Adenocarcinoma",
        "Endometrial Endometrioid Adenocarcinoma",
        "Endometrial Mixed Cell Adenocarcinoma",
        "Endometrial Mucinous Adenocarcinoma",
        "Endometrial Serous Adenocarcinoma",
        "Endometrial Undifferentiated Carcinoma",
        "Fallopian Tube Adenocarcinoma",
        "Fallopian Tube Carcinosarcoma",
        "Fallopian Tube Clear Cell Adenocarcinoma",
        "Fallopian Tube Endometrioid Adenocarcinoma",
        "Fallopian Tube Mucinous Adenocarcinoma",
        "Fallopian Tube Serous Adenocarcinoma",
        "Fallopian Tube Squamous Cell Carcinoma",
        "Fallopian Tube Transitional Cell Carcinoma",
        "Fallopian Tube Undifferentiated Carcinoma",
        "Malignant Female Reproductive System Neoplasm",
        "Malignant Ovarian Clear Cell Tumor",
        "Malignant Ovarian Endometrioid Tumor",
        "Malignant Ovarian Epithelial Tumor",
        "Malignant Ovarian Mucinous Tumor",
        "Malignant Peritoneal Neoplasm",
        "Malignant Solid Neoplasm",
        "Ovarian Carcinosarcoma",
        "Ovarian Clear Cell Adenocarcinoma",
        "Ovarian Endometrioid Adenocarcinoma",
        "Ovarian High Grade Serous Adenocarcinoma",
        "Ovarian Mucinous Adenocarcinoma",
        "Ovarian Serous Adenocarcinoma",
        "Ovarian Transitional Cell Carcinoma",
        "Ovarian Undifferentiated Carcinoma",
        "Platinum-Resistant Fallopian Tube Carcinoma",
        "Platinum-Resistant Ovarian Carcinoma",
        "Platinum-Resistant Primary Peritoneal Carcinoma",
        "Platinum-Sensitive Ovarian Carcinoma",
        "Primary Peritoneal Carcinosarcoma",
        "Primary Peritoneal Clear Cell Adenocarcinoma",
        "Primary Peritoneal Serous Adenocarcinoma",
        "Primary Peritoneal Transitional Cell Carcinoma",
        "Primary Peritoneal Undifferentiated Carcinoma",
        "Unresectable Melanoma",
        "Uterine Corpus Carcinosarcoma"
      ],
      "interventions": [
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Nab-paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 43,
      "start_date": "2014-02-24",
      "completion_date": "2024-07-18",
      "has_results": false,
      "last_update_posted_date": "2024-07-26",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 4,
      "location_summary": "Phoenix, Arizona • Scottsdale, Arizona • Jacksonville, Florida + 1 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02020707"
    },
    {
      "nct_id": "NCT00055809",
      "title": "Bevacizumab and PEG-Interferon Alfa-2b in Treating Patients With Metastatic or Unresectable Carcinoid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Gastrointestinal Carcinoid Tumor",
        "Recurrent Gastrointestinal Carcinoid Tumor",
        "Regional Gastrointestinal Carcinoid Tumor"
      ],
      "interventions": [
        {
          "name": "PEG-interferon alfa-2b",
          "type": "BIOLOGICAL"
        },
        {
          "name": "bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "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": 44,
      "start_date": "2003-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-01-23",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00055809"
    },
    {
      "nct_id": "NCT00057811",
      "title": "Rituximab, Rasburicase, and Combination Chemotherapy in Treating Young Patients With Newly Diagnosed Advanced B-Cell Leukemia or Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Childhood Burkitt Lymphoma",
        "Childhood Diffuse Large Cell Lymphoma",
        "Childhood Immunoblastic Large Cell Lymphoma",
        "Stage I Childhood Large Cell Lymphoma",
        "Stage I Childhood Small Noncleaved Cell Lymphoma",
        "Stage II Childhood Large Cell Lymphoma",
        "Stage II Childhood Small Noncleaved Cell Lymphoma",
        "Stage III Childhood Large Cell Lymphoma",
        "Stage III Childhood Small Noncleaved Cell Lymphoma",
        "Stage IV Childhood Large Cell Lymphoma",
        "Stage IV Childhood Small Noncleaved Cell Lymphoma",
        "Untreated Childhood Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "rasburicase",
          "type": "DRUG"
        },
        {
          "name": "leucovorin calcium",
          "type": "DRUG"
        },
        {
          "name": "prednisone",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cytarabine",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "hydrocortisone sodium succinate",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "1 Year to 29 Years"
      },
      "enrollment_count": 97,
      "start_date": "2004-06",
      "completion_date": "2014-07",
      "has_results": true,
      "last_update_posted_date": "2014-09-19",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 1,
      "location_summary": "Arcadia, California",
      "locations": [
        {
          "city": "Arcadia",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00057811"
    },
    {
      "nct_id": "NCT00834509",
      "title": "Biomarkers for Obstructive Sleep Apnea",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obstructive Sleep Apnea (OSA)"
      ],
      "interventions": [
        {
          "name": "CPAP",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "30 Years to 70 Years"
      },
      "enrollment_count": 181,
      "start_date": "2008-04",
      "completion_date": "2015-02-01",
      "has_results": false,
      "last_update_posted_date": "2017-04-18",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00834509"
    },
    {
      "nct_id": "NCT00003793",
      "title": "Genetic Study of Children With Soft Tissue Sarcoma or Rhabdomyosarcoma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Leukemia",
        "Myelodysplastic Syndromes",
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "clonality analysis",
          "type": "GENETIC"
        },
        {
          "name": "microsatellite instability analysis",
          "type": "GENETIC"
        },
        {
          "name": "mutation analysis",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "Up to 17 Years"
      },
      "enrollment_count": 294,
      "start_date": "1998-12",
      "completion_date": "2007-03",
      "has_results": false,
      "last_update_posted_date": "2014-08-05",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 83,
      "location_summary": "Downey, California • Long Beach, California • Los Angeles, California + 72 more",
      "locations": [
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Madera",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00003793"
    },
    {
      "nct_id": "NCT03007030",
      "title": "Brentuximab Vedotin in Treating Patients With CD30+ Malignant Mesothelioma That Cannot Be Removed by Surgery",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "CD30-Positive Neoplastic Cells Present",
        "Malignant Mesothelioma"
      ],
      "interventions": [
        {
          "name": "Brentuximab Vedotin",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "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": 25,
      "start_date": "2017-04-05",
      "completion_date": "2027-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03007030"
    },
    {
      "nct_id": "NCT03075553",
      "title": "Nivolumab in Treating Patients With Relapsed or Refractory Peripheral T-cell Lymphoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Blastic Plasmacytoid Dendritic Cell Neoplasm",
        "Hepatosplenic T-Cell Lymphoma",
        "HTLV-1 Infection",
        "NK-Cell Lymphoma, Unclassifiable",
        "Primary Systemic Anaplastic Large Cell Lymphoma, ALK-Negative",
        "Recurrent Adult T-Cell Leukemia/Lymphoma",
        "Recurrent Anaplastic Large Cell Lymphoma",
        "Recurrent Angioimmunoblastic T-cell Lymphoma",
        "Recurrent Enteropathy-Associated T-Cell Lymphoma",
        "Recurrent Mycosis Fungoides",
        "Refractory Adult T-Cell Leukemia/Lymphoma",
        "Refractory Anaplastic Large Cell Lymphoma",
        "Refractory Angioimmunoblastic T-cell Lymphoma",
        "Refractory Enteropathy-Associated T-Cell Lymphoma",
        "Refractory Mycosis Fungoides",
        "Refractory Nasal Type Extranodal NK/T-Cell Lymphoma",
        "Refractory Peripheral T-Cell Lymphoma, Not Otherwise Specified"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2017-05-17",
      "completion_date": "2019-05-29",
      "has_results": true,
      "last_update_posted_date": "2020-04-21",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03075553"
    },
    {
      "nct_id": "NCT04746495",
      "title": "Effect of Eplerenone on Novel Biomarkers of Mineralocorticoid Receptor Activation (ENOVA)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Eplerenone 50mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": "2023-02",
      "completion_date": "2023-12-01",
      "has_results": false,
      "last_update_posted_date": "2023-02-21",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04746495"
    },
    {
      "nct_id": "NCT00748657",
      "title": "Bevacizumab in Treating Patients With Recurrent Sex Cord-Stromal Tumors of the Ovary",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Malignant Ovarian Epithelial Tumor",
        "Ovarian Granulosa Cell Tumor",
        "Ovarian Gynandroblastoma",
        "Ovarian Sertoli-Leydig Cell Tumor",
        "Ovarian Sex Cord Tumor With Annular Tubules",
        "Ovarian Sex Cord-Stromal Tumor",
        "Ovarian Sex Cord-Stromal Tumor of Mixed or Unclassified Cell Types",
        "Ovarian Steroid Cell Tumor"
      ],
      "interventions": [
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "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": 36,
      "start_date": "2008-09-22",
      "completion_date": "2013-01-31",
      "has_results": true,
      "last_update_posted_date": "2019-07-23",
      "last_synced_at": "2026-10-30T20:03:10.367Z",
      "location_count": 36,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Hartford, Connecticut + 24 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "New Britain",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00748657"
    }
  ]
}