{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+Blood+Collection&page=17",
    "query": {
      "intervention": "Research Blood Collection",
      "page": 17
    },
    "page_size": 10
  },
  "pagination": {
    "page": 17,
    "page_size": 10,
    "total_count": 457,
    "total_pages": 46,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+Blood+Collection&page=18&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+Blood+Collection&page=16&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-21T04:09:00.173Z",
  "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": "NCT02089555",
      "title": "African American Alzheimer's Progression Markers - CSF and Neuro-Imaging",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mild Cognitive Impairment",
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "Lumbar puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging (MRI)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "60 Years to 85 Years"
      },
      "enrollment_count": 135,
      "start_date": "2013-09",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2016-06-23",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02089555"
    },
    {
      "nct_id": "NCT04327804",
      "title": "A Longitudinal Study of COVID-19 Positive Patients Testing Nasal Swabs and Collecting Blood Samples for Research",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS-CoV Infection"
      ],
      "interventions": [
        {
          "name": "Odd/Even birth year intervention groups",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "UnitedHealth Group",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 139,
      "start_date": "2020-03-25",
      "completion_date": "2020-10-10",
      "has_results": false,
      "last_update_posted_date": "2022-04-11",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04327804"
    },
    {
      "nct_id": "NCT02250352",
      "title": "Core Biopsies for Establishing a Breast Tumor Tissue Repository",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "cytology specimen collection procedure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "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": 400,
      "start_date": "2013-11-14",
      "completion_date": "2027-11-14",
      "has_results": false,
      "last_update_posted_date": "2026-05-13",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02250352"
    },
    {
      "nct_id": "NCT02887157",
      "title": "Analyzing Retinal Microanatomy in ROP",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Retinopathy of Prematurity",
        "Neurodevelopmental Disorders",
        "Macular Edema"
      ],
      "interventions": [
        {
          "name": "Swept Source OCT",
          "type": "DEVICE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "OTHER"
        },
        {
          "name": "Scavenged blood collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Weeks",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Weeks and older"
      },
      "enrollment_count": 191,
      "start_date": "2016-07-22",
      "completion_date": "2021-04-15",
      "has_results": false,
      "last_update_posted_date": "2023-02-10",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 4,
      "location_summary": "Gainesville, Florida • St Louis, Missouri • Durham, North Carolina + 1 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02887157"
    },
    {
      "nct_id": "NCT04242095",
      "title": "Collection of Research Data and Samples From Patients Treated With Immunotherapy to Study Its Side Effects",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hematopoietic and Lymphoid Cell Neoplasm",
        "Immune System Disorder",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Medical Chart Review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 2240,
      "start_date": "2020-03-12",
      "completion_date": "2026-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-05",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 629,
      "location_summary": "Anchorage, Alaska • Fairbanks, Alaska • Kingman, Arizona + 405 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/NCT04242095"
    },
    {
      "nct_id": "NCT03072602",
      "title": "Racial Differences in the Natriuretic Peptide Response to Glucose Challenge",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy",
        "Natriuretic Peptides",
        "Metabolic Syndrome"
      ],
      "interventions": [
        {
          "name": "Study diet",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Glucose Challenge",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 81,
      "start_date": "2017-03-01",
      "completion_date": "2018-10-01",
      "has_results": true,
      "last_update_posted_date": "2023-06-22",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03072602"
    },
    {
      "nct_id": "NCT03877068",
      "title": "Dexcom G6 Intervention Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Dexcom G6 CGM - Continues Glucose Monitoring sensor system",
          "type": "DEVICE"
        },
        {
          "name": "POC BG - Point-of-Care Blood Glucose monitoring",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 185,
      "start_date": "2019-06-26",
      "completion_date": "2021-02-27",
      "has_results": true,
      "last_update_posted_date": "2023-10-24",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Baltimore, Maryland",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03877068"
    },
    {
      "nct_id": "NCT02666378",
      "title": "Imaging Markers of Subclinical Cardiotoxicity in Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Cardiac Magnetic Resonance Imaging (CMR)",
          "type": "OTHER"
        },
        {
          "name": "Echocardiogram (ECHO)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "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": 50,
      "start_date": "2018-09-10",
      "completion_date": "2024-07-10",
      "has_results": false,
      "last_update_posted_date": "2024-10-01",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02666378"
    },
    {
      "nct_id": "NCT02995252",
      "title": "The HOPE Study: Characterizing Patients With Hepatitis B and C",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hepatitis B， Chronic",
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Blood draws",
          "type": "OTHER"
        },
        {
          "name": "Tenofovir Alafenamide",
          "type": "DRUG"
        },
        {
          "name": "Knowledge Index Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Liver transient elastography (FibroScan)",
          "type": "OTHER"
        },
        {
          "name": "Liver Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 550,
      "start_date": "2014-12",
      "completion_date": "2034-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Falls Church, Virginia",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Falls Church",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02995252"
    },
    {
      "nct_id": "NCT06941662",
      "title": "Huntington's Disease Biobank: Advancing Remote Monitoring and Deep Phenotyping",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Huntington Disease"
      ],
      "interventions": [
        {
          "name": "computer vision, remote monitoring, blood, urine, wrist bands, mobile-app",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 200,
      "start_date": "2024-06-01",
      "completion_date": "2035-12",
      "has_results": false,
      "last_update_posted_date": "2025-04-24",
      "last_synced_at": "2026-10-21T04:09:00.173Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06941662"
    }
  ]
}