{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=123",
    "query": {
      "intervention": "Blood samples collected",
      "page": 123
    },
    "page_size": 10
  },
  "pagination": {
    "page": 123,
    "page_size": 10,
    "total_count": 4280,
    "total_pages": 428,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=124&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=122&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T09:33:19.417Z",
  "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": "NCT01429389",
      "title": "Specimen Collection From Pregnant Women at Increased Risk for Fetal Aneuploidy",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Down Syndrome",
        "Fetal Aneuploidy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Sequenom, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 2000,
      "start_date": "2011-05",
      "completion_date": "2028-03",
      "has_results": false,
      "last_update_posted_date": "2026-09-09",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 12,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • San Diego, California + 6 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01429389"
    },
    {
      "nct_id": "NCT03150693",
      "title": "Inotuzumab Ozogamicin and Frontline Chemotherapy in Treating Young Adults With Newly Diagnosed B Acute Lymphoblastic Leukemia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "B Acute Lymphoblastic Leukemia"
      ],
      "interventions": [
        {
          "name": "Allopurinol",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Daunorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Vincristine Sulfate",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Pegylated L-Asparaginase",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Bone Marrow Aspiration and Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Mercaptopurine",
          "type": "DRUG"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Thioguanine",
          "type": "DRUG"
        },
        {
          "name": "Inotuzumab Ozogamicin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 303,
      "start_date": "2017-09-20",
      "completion_date": "2028-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-11-03",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 455,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 279 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03150693"
    },
    {
      "nct_id": "NCT04941716",
      "title": "Acalabrutinib in Combination With Venetoclax for the Treatment of Refractory or Recurrent Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma, The AVENUE-2 Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Chronic Lymphocytic Leukemia",
        "Recurrent Small Lymphocytic Lymphoma",
        "Refractory Chronic Lymphocytic Leukemia",
        "Refractory Small Lymphocytic Lymphoma"
      ],
      "interventions": [
        {
          "name": "Acalabrutinib",
          "type": "DRUG"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Fred Hutchinson 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": 20,
      "start_date": "2023-05-31",
      "completion_date": "2031-08-10",
      "has_results": false,
      "last_update_posted_date": "2026-10-23",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04941716"
    },
    {
      "nct_id": "NCT07648758",
      "title": "Produce Prescription for Healthy Blood Pressure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "High Blood Pressure"
      ],
      "interventions": [
        {
          "name": "Produce Prescription for Healthy Blood Pressure (PRx-BP) program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Texas A&M 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": "2023-05-05",
      "completion_date": "2024-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07648758"
    },
    {
      "nct_id": "NCT00589758",
      "title": "Tissue Doppler Assessment of Right Ventricular Performance in Acute Heeart Failure",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "Echocardiography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Biomarker evaluation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 75,
      "start_date": "2006-07",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2017-02-01",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00589758"
    },
    {
      "nct_id": "NCT05620914",
      "title": "A Window of Opportunity Study of Patritumab Deruxtecan in Patients With Brain Metastases",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Brain Metastases, Adult"
      ],
      "interventions": [
        {
          "name": "Patritumab deruxtecan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mustafa Khasraw, MBChB, MD, FRCP, FRACP",
      "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": "2025-07",
      "completion_date": "2027-04",
      "has_results": false,
      "last_update_posted_date": "2025-06-15",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05620914"
    },
    {
      "nct_id": "NCT06311227",
      "title": "Venetoclax for the Treatment of Patients With Relapsed Hairy Cell Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Hairy Cell Leukemia",
        "Recurrent Hairy Cell Leukemia Variant"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Lumbar Puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "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": 20,
      "start_date": "2024-12-16",
      "completion_date": "2027-05-20",
      "has_results": false,
      "last_update_posted_date": "2026-09-09",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 21,
      "location_summary": "Duarte, California • Irvine, California • Aventura, Florida + 16 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Aventura",
          "state": "Florida"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Coral Springs",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06311227"
    },
    {
      "nct_id": "NCT02762422",
      "title": "Serial Phlebotomy in Voluntary Blood Donors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atherosclerosis"
      ],
      "interventions": [
        {
          "name": "Phlebotomy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "40 Years to 70 Years"
      },
      "enrollment_count": 84,
      "start_date": "2009-06",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2016-05-05",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02762422"
    },
    {
      "nct_id": "NCT06237322",
      "title": "Study of RE.DOCTOR Vitals® Software Accuracy",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Respiratory Disorder",
        "Cardiovascular Diseases",
        "Diabetes",
        "Pre-Diabetes",
        "Primary Care"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "RE.DOCTOR LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "13 Years to 80 Years"
      },
      "enrollment_count": 1000,
      "start_date": "2024-03-01",
      "completion_date": "2025-03-01",
      "has_results": false,
      "last_update_posted_date": "2024-02-05",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06237322"
    },
    {
      "nct_id": "NCT04813627",
      "title": "Epidemiological Study to Monitor Study Participants With Resected Stage II (High Risk) or Stage III Colorectal Cancer for Circulating Tumor DNA Before, During and After Their Treatment With Adjuvant Chemotherapy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Colorectal Cancer Stage II",
        "Colorectal Cancer Stage III"
      ],
      "interventions": [
        {
          "name": "Regular blood sample collection for ctDNA assessment",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "BioNTech SE",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2079,
      "start_date": "2021-07-02",
      "completion_date": "2026-04-23",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-11-15T09:33:19.417Z",
      "location_count": 17,
      "location_summary": "California City, California • Concord, California • Greenbrae, California + 14 more",
      "locations": [
        {
          "city": "California City",
          "state": "California"
        },
        {
          "city": "Concord",
          "state": "California"
        },
        {
          "city": "Greenbrae",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04813627"
    }
  ]
}