{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+biomarker&page=5",
    "query": {
      "intervention": "blood biomarker",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 1739,
    "total_pages": 174,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+biomarker&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+biomarker&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-14T17:43:25.649Z",
  "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": "NCT00086944",
      "title": "Oblimersen, Rituximab and Combination Chemotherapy in Treating Patients With Relapsed or Refractory Aggressive Non-Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Adult Diffuse Large Cell Lymphoma",
        "Recurrent Grade 3 Follicular Lymphoma",
        "Recurrent Mantle Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "oblimersen sodium",
          "type": "BIOLOGICAL"
        },
        {
          "name": "rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "carboplatin",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "pegfilgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "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": 25,
      "start_date": "2004-05",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-01-24",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00086944"
    },
    {
      "nct_id": "NCT03505164",
      "title": "The Role of suPAR Biomarker in Blood Samples of Breast Cancer Patients During and Post Doxorubicin Chemotherapy: Causative vs. Predictor",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Doxorubicin Adverse Reaction",
        "Cardiomyopathies, Secondary",
        "Breast Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Rush University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 64 Years · Female only"
      },
      "enrollment_count": 42,
      "start_date": "2017-01-17",
      "completion_date": "2020-07-06",
      "has_results": false,
      "last_update_posted_date": "2021-04-27",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois • Oak Park, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Oak Park",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03505164"
    },
    {
      "nct_id": "NCT03996967",
      "title": "Diagnostic and Prognostic Biomarkers for Childhood Bacterial Pneumonia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pneumonia, Bacterial",
        "Viral Infection",
        "Clinical Pneumonia",
        "Plasmodium Falciparum Malaria",
        "Malaria",
        "Infections, Respiratory"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Boston University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Months",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "2 Months to 5 Years"
      },
      "enrollment_count": 837,
      "start_date": "2019-02-11",
      "completion_date": "2021-04-10",
      "has_results": false,
      "last_update_posted_date": "2022-05-31",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03996967"
    },
    {
      "nct_id": "NCT03210714",
      "title": "Erdafitinib in Treating Patients With Relapsed or Refractory Advanced Solid Tumors, Non-Hodgkin Lymphoma, or Histiocytic Disorders With FGFR Mutations (A Pediatric MATCH Treatment Trial)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Malignant Solid Neoplasm",
        "Recurrent Childhood Ependymoma",
        "Recurrent Childhood Malignant Germ Cell Tumor",
        "Recurrent Childhood Medulloblastoma",
        "Recurrent Childhood Non-Hodgkin Lymphoma",
        "Recurrent Childhood Osteosarcoma",
        "Recurrent Childhood Rhabdomyosarcoma",
        "Recurrent Childhood Soft Tissue Sarcoma",
        "Recurrent Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor",
        "Recurrent Hepatoblastoma",
        "Recurrent Langerhans Cell Histiocytosis",
        "Recurrent Malignant Glioma",
        "Recurrent Malignant Solid Neoplasm",
        "Recurrent Neuroblastoma",
        "Recurrent Primary Central Nervous System Neoplasm",
        "Recurrent Rhabdoid Tumor",
        "Refractory Childhood Malignant Germ Cell Tumor",
        "Refractory Childhood Osteosarcoma",
        "Refractory Childhood Rhabdomyosarcoma",
        "Refractory Childhood Soft Tissue Sarcoma",
        "Refractory Ependymoma",
        "Refractory Ewing Sarcoma/Peripheral Primitive Neuroectodermal Tumor",
        "Refractory Hepatoblastoma",
        "Refractory Langerhans Cell Histiocytosis",
        "Refractory Malignant Glioma",
        "Refractory Malignant Solid Neoplasm",
        "Refractory Medulloblastoma",
        "Refractory Neuroblastoma",
        "Refractory Non-Hodgkin Lymphoma",
        "Refractory Primary Central Nervous System Neoplasm",
        "Refractory Rhabdoid Tumor",
        "Wilms Tumor"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration and Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Erdafitinib",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Radionuclide Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "X-Ray Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "12 Months to 21 Years"
      },
      "enrollment_count": 20,
      "start_date": "2018-06-05",
      "completion_date": "2026-12-30",
      "has_results": true,
      "last_update_posted_date": "2026-09-22",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 114,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 91 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03210714"
    },
    {
      "nct_id": "NCT00764517",
      "title": "Vorinostat, Cladribine, and Rituximab in Treating Patients With Mantle Cell Lymphoma, Relapsed Chronic Lymphocytic Leukemia, or Relapsed B Cell Non-Hodgkin's Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent B-Cell Non-Hodgkin Lymphoma",
        "Recurrent Chronic Lymphocytic Leukemia",
        "Recurrent Indolent Adult Non-Hodgkin Lymphoma",
        "Refractory B-Cell Non-Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "Cladribine",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vorinostat",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "OHSU Knight Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 57,
      "start_date": "2008-08",
      "completion_date": "2017-03",
      "has_results": true,
      "last_update_posted_date": "2017-12-11",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 2,
      "location_summary": "Portland, Oregon • Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00764517"
    },
    {
      "nct_id": "NCT00022659",
      "title": "Bevacizumab in Treating Patients With Persistent or Recurrent Ovarian Epithelial Cancer or Primary Peritoneal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Primary Peritoneal Cavity Cancer",
        "Recurrent Ovarian Epithelial Cancer",
        "Stage IV Ovarian Epithelial Cancer"
      ],
      "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": 64,
      "start_date": "2002-04",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2019-07-24",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00022659"
    },
    {
      "nct_id": "NCT07556159",
      "title": "A Study Evaluating Disease Characteristics and Outcomes in Participants With Asthma in Routine Clinical Practice",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Procedure: Investigational Procedures",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 2500,
      "start_date": "2026-04-01",
      "completion_date": "2029-04-04",
      "has_results": false,
      "last_update_posted_date": "2026-10-09",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 63,
      "location_summary": "Bessemer, Alabama • Chandler, Arizona • Mesa, Arizona + 49 more",
      "locations": [
        {
          "city": "Bessemer",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07556159"
    },
    {
      "nct_id": "NCT04145115",
      "title": "A Study Testing the Effect of Immunotherapy (Ipilimumab and Nivolumab) in Patients With Recurrent Glioma With Elevated Mutational Burden",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Astrocytoma, IDH-Mutant, Grade 4",
        "Diffuse Glioma",
        "Glioblastoma, IDH-Wildtype",
        "Secondary Glioblastoma"
      ],
      "interventions": [
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "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": 37,
      "start_date": "2020-12-24",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 413,
      "location_summary": "Anchorage, Alaska • Phoenix, Arizona • Scottsdale, Arizona + 288 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04145115"
    },
    {
      "nct_id": "NCT01273610",
      "title": "Tolerability of the Combination of Lapatinib and Trastuzumab in Adults Age 60 or Older With HER2 Positive Locally Advanced or Metastatic Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Neoplasms",
        "HER2/Neu Positive",
        "Geriatric Health Services"
      ],
      "interventions": [
        {
          "name": "Lapatinib",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab",
          "type": "DRUG"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2011-04-20",
      "completion_date": "2027-04-20",
      "has_results": true,
      "last_update_posted_date": "2026-06-25",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 8,
      "location_summary": "Duarte, California • Lancaster, California • Pasadena, California + 5 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01273610"
    },
    {
      "nct_id": "NCT01263613",
      "title": "Feasibility Study of Biomarkers of Response to Neoadjuvant Paclitaxel in Locally Advanced Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "tumor biopsy and blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "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": 6,
      "start_date": "2010-12",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2019-11-19",
      "last_synced_at": "2026-10-14T17:43:25.649Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01263613"
    }
  ]
}