{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=75",
    "query": {
      "intervention": "Blood samples collected",
      "page": 75
    },
    "page_size": 10
  },
  "pagination": {
    "page": 75,
    "page_size": 10,
    "total_count": 4266,
    "total_pages": 427,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=76&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=74&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T20:18:35.987Z",
  "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": "NCT01418495",
      "title": "Pharmacokinetics of Ch14.18 in Younger Patients With High-Risk Neuroblastoma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Localized Resectable Neuroblastoma",
        "Localized Unresectable Neuroblastoma",
        "Neurotoxicity Syndrome",
        "Pain",
        "Regional Neuroblastoma",
        "Stage 4 Neuroblastoma",
        "Stage 4S Neuroblastoma"
      ],
      "interventions": [
        {
          "name": "Cytology Specimen Collection Procedure",
          "type": "OTHER"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "15 Years",
        "sex": "ALL",
        "summary": "Up to 15 Years"
      },
      "enrollment_count": 12,
      "start_date": "2011-05-26",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2019-10-01",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01418495"
    },
    {
      "nct_id": "NCT05823766",
      "title": "Transforming Research and Clinical Knowledge in Traumatic Brain Injury Epileptogenesis Project (TRACK-TBI EPI)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Traumatic Brain Injury",
        "Post-traumatic Epilepsy"
      ],
      "interventions": [
        {
          "name": "In-Person Outcome Assessment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "3T Magnetic Resonance Imaging (MRI)",
          "type": "PROCEDURE"
        },
        {
          "name": "Clinical Visit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        },
        {
          "name": "EEG",
          "type": "PROCEDURE"
        },
        {
          "name": "Telephone Outcome Assessment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "PROCEDURE"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2022-03-01",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2026-07-30",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 9,
      "location_summary": "San Francisco, California • Charlestown, Massachusetts • Cincinnati, Ohio + 6 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Charlestown",
          "state": "Massachusetts"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05823766"
    },
    {
      "nct_id": "NCT04732845",
      "title": "Human AntiCD19 Chimeric Antigen Receptor T Cells for Relapsed or Refractory Lymphoid Malignancies",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Non Hodgkin Lymphoma",
        "Acute Lymphoblastic Leukemia",
        "Chronic Lymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "Fully human anti CD19 CAR-T Cell Dose",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Benjamin Tomlinson",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2021-04-26",
      "completion_date": "2040-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04732845"
    },
    {
      "nct_id": "NCT03067181",
      "title": "Active Surveillance, Bleomycin, Etoposide, Carboplatin or Cisplatin in Treating Pediatric and Adult Patients With Germ Cell Tumors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Childhood Extracranial Germ Cell Tumor",
        "Extragonadal Embryonal Carcinoma",
        "Germ Cell Tumor",
        "Malignant Germ Cell Tumor",
        "Malignant Ovarian Teratoma",
        "Stage I Ovarian Choriocarcinoma",
        "Stage I Ovarian Embryonal Carcinoma AJCC v6 and v7",
        "Stage I Ovarian Yolk Sac Tumor AJCC v6 and v7",
        "Stage I Testicular Choriocarcinoma AJCC v6 and v7",
        "Stage I Testicular Embryonal Carcinoma AJCC v6 and v7",
        "Stage I Testicular Seminoma AJCC v6 and v7",
        "Stage I Testicular Yolk Sac Tumor AJCC v6 and v7",
        "Stage II Ovarian Choriocarcinoma",
        "Stage II Ovarian Embryonal Carcinoma AJCC v6 and v7",
        "Stage II Ovarian Yolk Sac Tumor AJCC v6 and v7",
        "Stage II Testicular Choriocarcinoma AJCC v6 and v7",
        "Stage II Testicular Embryonal Carcinoma AJCC v6 and v7",
        "Stage II Testicular Yolk Sac Tumor AJCC v6 and v7",
        "Stage III Ovarian Choriocarcinoma",
        "Stage III Ovarian Embryonal Carcinoma AJCC v6 and v7",
        "Stage III Ovarian Yolk Sac Tumor AJCC v6 and v7",
        "Stage III Testicular Choriocarcinoma AJCC v6 and v7",
        "Stage III Testicular Embryonal Carcinoma AJCC v6 and v7",
        "Stage III Testicular Yolk Sac Tumor AJCC v6 and v7",
        "Stage IV Ovarian Choriocarcinoma",
        "Stage IV Ovarian Embryonal Carcinoma AJCC v6 and v7",
        "Stage IV Ovarian Yolk Sac Tumor AJCC v6 and v7",
        "Testicular Mixed Choriocarcinoma and Embryonal Carcinoma",
        "Testicular Mixed Choriocarcinoma and Teratoma",
        "Testicular Mixed Choriocarcinoma and Yolk Sac Tumor"
      ],
      "interventions": [
        {
          "name": "Best Practice",
          "type": "OTHER"
        },
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bleomycin Sulfate",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Pulmonary Function Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1780,
      "start_date": "2017-05-25",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 566,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 338 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03067181"
    },
    {
      "nct_id": "NCT05984030",
      "title": "Supporting Tailored And Responsive PrEP in Rural North Carolina",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Pre-Exposure Prophylaxis"
      ],
      "interventions": [
        {
          "name": "PrEP Navigation Services",
          "type": "OTHER"
        },
        {
          "name": "Telehealth PrEP Services Referral",
          "type": "OTHER"
        },
        {
          "name": "HealthMpowerment Digital Health Intervention - Enhanced",
          "type": "BEHAVIORAL"
        },
        {
          "name": "HealthMpowerment Digital Health Intervention - Basic",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 17,
      "start_date": "2023-08-31",
      "completion_date": "2025-06-01",
      "has_results": true,
      "last_update_posted_date": "2025-08-15",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05984030"
    },
    {
      "nct_id": "NCT03432806",
      "title": "A Study of Imaging, Blood, and Tissue Samples to Guide Treatment of Colon Cancer and Related Liver Tumors",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Colon Cancer",
        "Liver Tumors"
      ],
      "interventions": [
        {
          "name": "blood draws",
          "type": "OTHER"
        },
        {
          "name": "colectomy or hepatectomy",
          "type": "PROCEDURE"
        },
        {
          "name": "Fibroscan test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "DIAGNOSTIC_TEST"
      ],
      "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": 80,
      "start_date": "2017-11-28",
      "completion_date": "2028-11",
      "has_results": false,
      "last_update_posted_date": "2026-10-13",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 4,
      "location_summary": "Basking Ridge, New Jersey • Commack, New York • Harrison, New York + 1 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03432806"
    },
    {
      "nct_id": "NCT05030038",
      "title": "Oral Aromatase Inhibitors Modify the Gut Microbiome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Fecal swab collection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Blood samples",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "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": 24,
      "start_date": "2022-03-29",
      "completion_date": "2025-07-28",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05030038"
    },
    {
      "nct_id": "NCT01605344",
      "title": "Crossover Evaluation of Effect of Atorvastatin on PK of Irinotecan in CRC Patients Receiving FOLFIRI",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Advanced Adenocarcinoma of the Colon or Rectum"
      ],
      "interventions": [
        {
          "name": "FOLFIRI.",
          "type": "DRUG"
        },
        {
          "name": "Atorvastatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "UNC Lineberger Comprehensive 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": 0,
      "start_date": "2012-04",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2014-02-27",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01605344"
    },
    {
      "nct_id": "NCT04968834",
      "title": "Genomically Profiling, Collecting, Archiving and Distributing Hematologic Malignancy Specimens",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Leukemia",
        "Myelodysplastic Syndromes",
        "Myeloproliferative Syndrome"
      ],
      "interventions": [
        {
          "name": "Genomic profiling",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "Up to 30 Years"
      },
      "enrollment_count": 300,
      "start_date": "2021-06-11",
      "completion_date": "2033-06",
      "has_results": false,
      "last_update_posted_date": "2026-07-16",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 8,
      "location_summary": "Hartford, Connecticut • Portland, Maine • Boston, Massachusetts + 4 more",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "Portland",
          "state": "Maine"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04968834"
    },
    {
      "nct_id": "NCT01399398",
      "title": "Imaging of CB1 Receptors Using (11C)SD5024",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Brain Scan-PET",
          "type": "PROCEDURE"
        },
        {
          "name": "Brain Scan-MRI",
          "type": "PROCEDURE"
        },
        {
          "name": "Arterial Line",
          "type": "PROCEDURE"
        },
        {
          "name": "Venous Line",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood Sampling",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "National Institute of Mental Health (NIMH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 8,
      "start_date": "2011-06-22",
      "completion_date": "2013-12-18",
      "has_results": false,
      "last_update_posted_date": "2019-11-29",
      "last_synced_at": "2026-10-22T20:18:35.987Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01399398"
    }
  ]
}