{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+samples+%28biomarkers%29",
    "query": {
      "intervention": "blood samples (biomarkers)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1737,
    "total_pages": 174,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+samples+%28biomarkers%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T20:21:06.270Z",
  "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": "NCT00436709",
      "title": "Bevacizumab, Doxorubicin, and Cyclophosphamide Followed By Paclitaxel Albumin-Stabilized Nanoparticle Formulation and Bevacizumab in Treating Patients Who Have Undergone Surgery for Early-Stage Breast Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "pegfilgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "paclitaxel albumin-stabilized nanoparticle formulation",
          "type": "DRUG"
        },
        {
          "name": "flow cytometry",
          "type": "OTHER"
        },
        {
          "name": "immunoenzyme technique",
          "type": "OTHER"
        },
        {
          "name": "immunologic technique",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "adjuvant therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "immunoscintigraphy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 75,
      "start_date": "2006-07",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-01-06",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00436709"
    },
    {
      "nct_id": "NCT07187921",
      "title": "Evaluation of a Finger Prick Collection Method for Measuring Alzheimer's Disease Blood Biomarkers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Alzheimer Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Banner Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 49,
      "start_date": "2025-09-29",
      "completion_date": "2025-11-12",
      "has_results": false,
      "last_update_posted_date": "2025-12-09",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07187921"
    },
    {
      "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": "2026-09-30T20:21:06.270Z",
      "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": "NCT05019625",
      "title": "Biomarker Development for Muscular Dystrophies",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Myotonic Dystrophy",
        "Duchenne Muscular Dystrophy",
        "Becker Muscular Dystrophy",
        "Facioscapulohumeral Muscular Dystrophy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "5 Years and older"
      },
      "enrollment_count": 465,
      "start_date": "2015-02-20",
      "completion_date": "2028-06",
      "has_results": false,
      "last_update_posted_date": "2025-11-24",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 5,
      "location_summary": "Boston, Massachusetts • Winston-Salem, North Carolina • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05019625"
    },
    {
      "nct_id": "NCT01498978",
      "title": "Ipilimumab in Combination With Androgen Suppression Therapy in Treating Patients With Metastatic Hormone-Resistant 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": "ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "OHSU Knight Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 10,
      "start_date": "2012-02-06",
      "completion_date": "2019-01-19",
      "has_results": true,
      "last_update_posted_date": "2020-10-14",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 2,
      "location_summary": "New Brunswick, New Jersey • Portland, Oregon",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01498978"
    },
    {
      "nct_id": "NCT04165798",
      "title": "KEYMAKER-U01 Umbrella Master Study: Studies of Investigational Agents With Either Pembrolizumab (MK-3475) Alone or With Pembrolizumab PLUS Chemotherapy in Participants With Non-small Cell Lung Cancer (NSCLC) (MK-3475-U01/KEYMAKER-U01)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Carcinoma, Non-Small-Cell Lung"
      ],
      "interventions": [
        {
          "name": "Tumor Imaging",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Tumor Tissue Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood Sample Collection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "PROCEDURE"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1065,
      "start_date": "2019-12-19",
      "completion_date": "2032-02-13",
      "has_results": false,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 18,
      "location_summary": "Gilbert, Arizona • Duarte, California • San Francisco, California + 14 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04165798"
    },
    {
      "nct_id": "NCT02450240",
      "title": "Latent Structure of Multi-level Assessments and Predictors of Outcomes in Psychiatric Disorders",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Depression",
        "Anxiety",
        "Eating Disorders",
        "Drug Use Disorders"
      ],
      "interventions": [
        {
          "name": "standardized diagnostic assessment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "self-report questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "behavioral tasks",
          "type": "BEHAVIORAL"
        },
        {
          "name": "physiological measurements",
          "type": "OTHER"
        },
        {
          "name": "structural and functional magnetic resonance imaging and EEG",
          "type": "OTHER"
        },
        {
          "name": "biomarker and microbiome assessments",
          "type": "OTHER"
        },
        {
          "name": "blood to derive induced pluripotent stem cells",
          "type": "OTHER"
        },
        {
          "name": "genetic and epigenetic assessments",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Laureate Institute for Brain Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 1271,
      "start_date": "2015-01",
      "completion_date": "2020-06",
      "has_results": false,
      "last_update_posted_date": "2020-07-07",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 1,
      "location_summary": "Tulsa, Oklahoma",
      "locations": [
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02450240"
    },
    {
      "nct_id": "NCT00557193",
      "title": "Combination Chemotherapy With or Without Lestaurtinib in Treating Younger Patients With Newly Diagnosed Acute Lymphoblastic Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acute Lymphoblastic Leukemia",
        "Acute Undifferentiated Leukemia",
        "Childhood T Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "Asparaginase",
          "type": "DRUG"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Daunorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Lestaurtinib",
          "type": "DRUG"
        },
        {
          "name": "Leucovorin Calcium",
          "type": "DRUG"
        },
        {
          "name": "Mercaptopurine",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Pegaspargase",
          "type": "DRUG"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Therapeutic Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Vincristine Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "1 Year",
        "sex": "ALL",
        "summary": "Up to 1 Year"
      },
      "enrollment_count": 218,
      "start_date": "2008-01-15",
      "completion_date": "2024-06-30",
      "has_results": true,
      "last_update_posted_date": "2024-07-15",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 157,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 120 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00557193"
    },
    {
      "nct_id": "NCT02498600",
      "title": "Nivolumab With or Without Ipilimumab in Treating Patients With Persistent or Recurrent Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Fallopian Tube Carcinoma",
        "Recurrent Ovarian Carcinoma",
        "Recurrent Primary Peritoneal Carcinoma"
      ],
      "interventions": [
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "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": 100,
      "start_date": "2015-08-10",
      "completion_date": "2025-07-26",
      "has_results": true,
      "last_update_posted_date": "2025-08-29",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 201,
      "location_summary": "Auburn, California • Berkeley, California • Cameron Park, California + 140 more",
      "locations": [
        {
          "city": "Auburn",
          "state": "California"
        },
        {
          "city": "Auburn",
          "state": "California"
        },
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Cameron Park",
          "state": "California"
        },
        {
          "city": "Davis",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02498600"
    },
    {
      "nct_id": "NCT00024154",
      "title": "Trastuzumab and Gefitinib in Treating Patients With Metastatic Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Male Breast Cancer",
        "Recurrent Breast Cancer",
        "Stage IV Breast Cancer"
      ],
      "interventions": [
        {
          "name": "trastuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "gefitinib",
          "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": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 132,
      "start_date": "2002-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-01-24",
      "last_synced_at": "2026-09-30T20:21:06.270Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00024154"
    }
  ]
}