{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=121",
    "query": {
      "intervention": "Blood samples collected",
      "page": 121
    },
    "page_size": 10
  },
  "pagination": {
    "page": 121,
    "page_size": 10,
    "total_count": 4280,
    "total_pages": 428,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=122&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=120&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T09:45:38.599Z",
  "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": "NCT03228810",
      "title": "Genetic Biomarker Discovery for Metastatic Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "OTHER"
        },
        {
          "name": "Tissue biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 4,
      "start_date": "2017-05-02",
      "completion_date": "2019-04-09",
      "has_results": false,
      "last_update_posted_date": "2019-05-09",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03228810"
    },
    {
      "nct_id": "NCT03118284",
      "title": "Foley Catheter Related Bladder Discomfort (FCRBD): Role of Neutrophil Cells",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Urethra Injury",
        "Catheter Site Discomfort"
      ],
      "interventions": [
        {
          "name": "urine collection",
          "type": "OTHER"
        },
        {
          "name": "Blood collection",
          "type": "OTHER"
        },
        {
          "name": "NRS",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 58,
      "start_date": "2016-11-21",
      "completion_date": "2017-08-28",
      "has_results": false,
      "last_update_posted_date": "2018-11-15",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03118284"
    },
    {
      "nct_id": "NCT02871050",
      "title": "Castleman Disease Collaborative Network Biobank",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Castleman Disease",
        "Castleman's Disease",
        "Giant Lymph Node Hyperplasia",
        "Angiofollicular Lymph Hyperplasia",
        "Angiofollicular Lymph Node Hyperplasia",
        "Angiofollicular Lymphoid Hyperplasia",
        "GLNH",
        "Hyperplasia",
        "Giant Lymph Node"
      ],
      "interventions": [
        {
          "name": "Sample Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Castleman Disease Collaborative Network",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 0,
      "start_date": "2016-06",
      "completion_date": "2018-06",
      "has_results": false,
      "last_update_posted_date": "2018-07-31",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02871050"
    },
    {
      "nct_id": "NCT07437963",
      "title": "Testing the Addition of Iberdomide to Therapy in People With Neuroblastoma That Has Come Back, Not Responded to Treatment, or Gotten Worse",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Ganglioneuroblastoma",
        "Recurrent Neuroblastoma",
        "Refractory Ganglioneuroblastoma",
        "Refractory Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Dinutuximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "FDG-Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Iberdomide",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Nuclear Radiology Imaging Procedure",
          "type": "RADIATION"
        },
        {
          "name": "Sargramostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Topotecan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "1 Year to 30 Years"
      },
      "enrollment_count": 76,
      "start_date": "2027-06-25",
      "completion_date": "2029-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-11-06",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 4,
      "location_summary": "Oakland, California • Chicago, Illinois • New York, New York + 1 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Columbia",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07437963"
    },
    {
      "nct_id": "NCT03179904",
      "title": "TVB-2640 and Trastuzumab With Paclitaxel or Endocrine Therapy for Treatment of HER2 Positive Metastatic Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Breast Carcinoma",
        "HER2-Positive Breast Carcinoma",
        "Anatomic Stage III Breast Cancer AJCC v8",
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "HER2-positive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Anastrozole",
          "type": "DRUG"
        },
        {
          "name": "Denifanstat",
          "type": "DRUG"
        },
        {
          "name": "Exemestane",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Letrozole",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "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": 17,
      "start_date": "2017-08-03",
      "completion_date": "2026-03-13",
      "has_results": true,
      "last_update_posted_date": "2026-10-09",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 3,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03179904"
    },
    {
      "nct_id": "NCT02781350",
      "title": "Anti-inflammatory Effects of Fiber",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postprandial Inflammation"
      ],
      "interventions": [
        {
          "name": "HFHC meal",
          "type": "OTHER"
        },
        {
          "name": "HFHC MEAL plus Fiber",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University at Buffalo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2010-11",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2016-05-25",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02781350"
    },
    {
      "nct_id": "NCT07279116",
      "title": "ABY-029 Head & Neck Phase 1 Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Head and Neck Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "ABY-029",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Dartmouth-Hitchcock Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2026-10-20",
      "completion_date": "2028-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-11-13",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07279116"
    },
    {
      "nct_id": "NCT04472338",
      "title": "Prostate Cancer Screening for People at Genetic Risk for Aggressive Disease, PATROL Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "40 Years and older · Male only"
      },
      "enrollment_count": 450,
      "start_date": "2020-05-21",
      "completion_date": "2030-08-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 8,
      "location_summary": "Duarte, California • San Francisco, California • Chicago, Illinois + 5 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04472338"
    },
    {
      "nct_id": "NCT04162678",
      "title": "Fluid Biopsy for the Diagnosis of Lung Cancer",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Liquid Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Medical Chart Review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 51,
      "start_date": "2020-01-13",
      "completion_date": "2024-12-09",
      "has_results": false,
      "last_update_posted_date": "2025-09-05",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04162678"
    },
    {
      "nct_id": "NCT02246738",
      "title": "Initial Evaluation of a Telomerase-based Circulating Tumor Cell Assay in Bladder Cancer Cohorts",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Urothelial Carcinoma of the Bladder"
      ],
      "interventions": [
        {
          "name": "Blood Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 87,
      "start_date": "2014-08",
      "completion_date": "2020-10",
      "has_results": false,
      "last_update_posted_date": "2020-12-10",
      "last_synced_at": "2026-11-15T09:45:38.599Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02246738"
    }
  ]
}