{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+blood+draw&page=67",
    "query": {
      "intervention": "Biomarker blood draw",
      "page": 67
    },
    "page_size": 10
  },
  "pagination": {
    "page": 67,
    "page_size": 10,
    "total_count": 1746,
    "total_pages": 175,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+blood+draw&page=68&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+blood+draw&page=66&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-30T22:19:54.221Z",
  "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": "NCT04207619",
      "title": "Evaluating Glial Acetate Metabolism as a Biomarker of Hypoglycemic Counterregulation",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Hypoglycemia"
      ],
      "interventions": [
        {
          "name": "hyperinsulinemic-hypoglycemic clamp",
          "type": "OTHER"
        },
        {
          "name": "13C-MRS procedure/Acetate infusion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Pennington Biomedical Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 10,
      "start_date": "2020-02-19",
      "completion_date": "2027-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-17",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 1,
      "location_summary": "Baton Rouge, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04207619"
    },
    {
      "nct_id": "NCT00601900",
      "title": "Tamoxifen Citrate or Letrozole With or Without Bevacizumab in Treating Women With Stage IIIB or Stage IV Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Invasive Breast Carcinoma",
        "Recurrent Breast Carcinoma",
        "Stage III Breast Cancer AJCC v6",
        "Stage IV Breast Cancer AJCC v6 and v7"
      ],
      "interventions": [
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Letrozole",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Tamoxifen Citrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER",
        "DRUG"
      ],
      "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": 394,
      "start_date": "2008-09-24",
      "completion_date": "2024-01-29",
      "has_results": true,
      "last_update_posted_date": "2026-08-28",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 521,
      "location_summary": "Mobile, Alabama • Fort Smith, Arkansas • Antioch, California + 355 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Antioch",
          "state": "California"
        },
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Burbank",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00601900"
    },
    {
      "nct_id": "NCT00767234",
      "title": "Permission to Collect Blood Over Time for Research",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pancreatic Cancer",
        "Gastrointestinal Neoplasms",
        "Colon Rectal Cancer Adenocarcinoma",
        "Esophageal Cancer",
        "Gall Bladder Cancer",
        "Gastric (Stomach) Cancer",
        "Gastrooesophageal Cancer",
        "Gastrointestinal Stromal Tumor (GIST)",
        "Hepatobiliary Neoplasm",
        "Liver Carcinoma",
        "Gallbladder Carcinoma",
        "Bile Duct Carcinoma",
        "Carcinoma of the Large Intestine",
        "Anal Cancer"
      ],
      "interventions": [
        {
          "name": "Observation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 104,
      "start_date": "2008-08",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2016-07-11",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00767234"
    },
    {
      "nct_id": "NCT03951428",
      "title": "Screening of Cancer Through Novel Female Specific Biomarkers",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Menstrual Blood Screening Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "LifeStory Health Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2019-05-15",
      "completion_date": "2019-12-31",
      "has_results": false,
      "last_update_posted_date": "2019-05-15",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 1,
      "location_summary": "Temple, Texas",
      "locations": [
        {
          "city": "Temple",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03951428"
    },
    {
      "nct_id": "NCT00016107",
      "title": "Combination Chemotherapy Plus Bevacizumab in Treating Patients With Metastatic Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Adenocarcinoma of the Prostate",
        "Hormone-resistant Prostate Cancer",
        "Recurrent Prostate Cancer",
        "Stage IV Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "estramustine phosphate sodium",
          "type": "DRUG"
        },
        {
          "name": "docetaxel",
          "type": "DRUG"
        },
        {
          "name": "bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "MALE",
        "summary": "Male only"
      },
      "enrollment_count": 72,
      "start_date": "2001-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-06-05",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00016107"
    },
    {
      "nct_id": "NCT01359592",
      "title": "S1001 PET-Directed Therapy in Treating Patients With Limited-Stage Diffuse Large B-Cell Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "prednisone",
          "type": "DRUG"
        },
        {
          "name": "vincristine sulfate",
          "type": "DRUG"
        },
        {
          "name": "R-CHOP regimen",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "fludeoxyglucose F 18",
          "type": "RADIATION"
        },
        {
          "name": "selective external radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "yttrium Y 90 ibritumomab tiuxetan",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 159,
      "start_date": "2011-09",
      "completion_date": "2023-12",
      "has_results": true,
      "last_update_posted_date": "2025-06-17",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 240,
      "location_summary": "Anchorage, Alaska • Tucson, Arizona • Aurora, Colorado + 153 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Boulder",
          "state": "Colorado"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01359592"
    },
    {
      "nct_id": "NCT03250429",
      "title": "Nasal and Peripheral Blood Biomarkers of CRS Patients Before and After Surgical Intervention",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sinusitis, Chronic"
      ],
      "interventions": [
        {
          "name": "Sinus surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 30,
      "start_date": "2017-09-01",
      "completion_date": "2019-12-20",
      "has_results": false,
      "last_update_posted_date": "2020-02-05",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03250429"
    },
    {
      "nct_id": "NCT02187172",
      "title": "Vascular Inflammation in Psoriasis-Ustekinumab (VIP-U)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Psoriasis",
        "Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Ustekinumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "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": "2014-07",
      "completion_date": "2018-09-11",
      "has_results": true,
      "last_update_posted_date": "2019-08-15",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02187172"
    },
    {
      "nct_id": "NCT07767981",
      "title": "Microbiome Determinants of Adverse Effects of Stereotactic Radiosurgery",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adverse Radiation Effects",
        "Radiation Necrosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2025-08-05",
      "completion_date": "2028-09-05",
      "has_results": false,
      "last_update_posted_date": "2026-08-18",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07767981"
    },
    {
      "nct_id": "NCT00407888",
      "title": "Doxorubicin Hydrochloride, Cyclophosphamide, and Filgrastim Followed By Paclitaxel Albumin-Stabilized Nanoparticle Formulation With or Without Trastuzumab in Treating Patients With Breast Cancer Previously Treated With Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Estrogen Receptor-positive Breast Cancer",
        "HER2-positive Breast Cancer",
        "Stage IA Breast Cancer",
        "Stage IB Breast Cancer",
        "Stage II Breast Cancer",
        "Stage IIIA Breast Cancer",
        "Stage IIIB Breast Cancer",
        "Stage IIIC Breast Cancer",
        "Stage IV Breast Cancer"
      ],
      "interventions": [
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "paclitaxel albumin-stabilized nanoparticle formulation",
          "type": "DRUG"
        },
        {
          "name": "trastuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "quality-of-life assessment",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "University of Washington",
      "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": 60,
      "start_date": "2006-05",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2017-08-31",
      "last_synced_at": "2026-10-30T22:19:54.221Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00407888"
    }
  ]
}