{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample+collection+for+research",
    "query": {
      "intervention": "Blood sample collection for research"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 338,
    "total_pages": 34,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample+collection+for+research&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-17T22:57:23.073Z",
  "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": "NCT02696759",
      "title": "Gut Microbiome & Gastrointestinal Toxicities as Determinants of Response to Neoadjuvant Chemo for Advanced Breast Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Blood & Fecal Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Arkansas",
      "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": 15,
      "start_date": "2016-07",
      "completion_date": "2021-08",
      "has_results": true,
      "last_update_posted_date": "2022-03-16",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02696759"
    },
    {
      "nct_id": "NCT03569813",
      "title": "Pre-exposure Prophylaxis (PrEP) at Home",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV/AIDS"
      ],
      "interventions": [
        {
          "name": "PrEP@Home System",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard of Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "MALE",
        "summary": "18 Years to 49 Years · Male only"
      },
      "enrollment_count": 318,
      "start_date": "2019-04-26",
      "completion_date": "2023-04-15",
      "has_results": true,
      "last_update_posted_date": "2024-09-26",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 5,
      "location_summary": "Atlanta, Georgia • Boston, Massachusetts • Jackson, Mississippi + 2 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03569813"
    },
    {
      "nct_id": "NCT01851382",
      "title": "Collection of Saliva and/ or Peripheral Blood From Healthy Volunteers for Research",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Graft vs Host Disease",
        "Healthy Volunteer",
        "Graft-Versus-Host Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 29,
      "start_date": "2013-05-15",
      "completion_date": "2015-02-12",
      "has_results": false,
      "last_update_posted_date": "2022-07-11",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01851382"
    },
    {
      "nct_id": "NCT05148117",
      "title": "Mitochondrial Dysfunction Contributes to Sepsis Induced Cardiac Dysfunction",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sepsis"
      ],
      "interventions": [
        {
          "name": "Suspected Sepsis Group - Diagnostic Measurements",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Control Group - Diagnostic Measurements",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "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": "2025-12-10",
      "completion_date": "2026-01-14",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05148117"
    },
    {
      "nct_id": "NCT05230186",
      "title": "A Tissue Collection Study in Patients Who Respond to Immune Checkpoint Inhibitors to Identify Targets of Tumor-Reactive T Cells.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Solid Tumor, Adult"
      ],
      "interventions": [
        {
          "name": "Tumor Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "TScan Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2021-02-26",
      "completion_date": "2024-12-20",
      "has_results": false,
      "last_update_posted_date": "2026-09-15",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • New Orleans, Louisiana • Morristown, New Jersey + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Morristown",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05230186"
    },
    {
      "nct_id": "NCT01230502",
      "title": "Mycophenolic Acid (MPA) Monotherapy in Liver Transplantation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Liver Transplant"
      ],
      "interventions": [
        {
          "name": "Group 1 Donor Specific Regulation (DSR) +, Mycophenolic acid (MPA) monotherapy",
          "type": "DRUG"
        },
        {
          "name": "data and sample collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2011-11",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2014-05-07",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01230502"
    },
    {
      "nct_id": "NCT03657251",
      "title": "MMRF CureCloud Research Initiative",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "liquid biopsy",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "Multiple Myeloma Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1105,
      "start_date": "2020-07-14",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-01-05",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 4,
      "location_summary": "Norwalk, Connecticut • St Louis, Missouri • Hackensack, New Jersey + 1 more",
      "locations": [
        {
          "city": "Norwalk",
          "state": "Connecticut"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Hackensack",
          "state": "New Jersey"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03657251"
    },
    {
      "nct_id": "NCT02276066",
      "title": "Kidney Response to Sepsis Affects Angiogenic Balance and Likelihood of CCI and PICS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sepsis"
      ],
      "interventions": [
        {
          "name": "GFR by Iohexol",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Urine Collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood samples",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 73,
      "start_date": "2015-02",
      "completion_date": "2023-05-20",
      "has_results": true,
      "last_update_posted_date": "2024-07-09",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02276066"
    },
    {
      "nct_id": "NCT05659147",
      "title": "Imaging Biomarkers of Pancreatic Function and Disease",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pancreatitis",
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Research MRI without administration of intravenous secretin",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Research MRI with administration of intravenous secretin",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Genetic Sequencing",
          "type": "GENETIC"
        },
        {
          "name": "Blood Tests",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Stool Tests",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Survey Completion",
          "type": "OTHER"
        },
        {
          "name": "Endoscopic pancreatic function tests (ePFTs)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Secretin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "GENETIC",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "5 Years to 21 Years"
      },
      "enrollment_count": 195,
      "start_date": "2023-01-18",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05659147"
    },
    {
      "nct_id": "NCT03629717",
      "title": "RANKL Inhibition and Breast Tissue Biomarkers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Breast Cancer Prevention",
        "Mammographic Density"
      ],
      "interventions": [
        {
          "name": "Ultrasound-guided core needle biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Denosumab",
          "type": "DRUG"
        },
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Calcium",
          "type": "DRUG"
        },
        {
          "name": "Vitamin D",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "35 Years and older · Female only"
      },
      "enrollment_count": 10,
      "start_date": "2018-06-01",
      "completion_date": "2018-12-03",
      "has_results": false,
      "last_update_posted_date": "2024-10-16",
      "last_synced_at": "2026-09-17T22:57:23.073Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03629717"
    }
  ]
}