{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+Sample+Collection&page=15",
    "query": {
      "intervention": "Blood Sample Collection",
      "page": 15
    },
    "page_size": 10
  },
  "pagination": {
    "page": 15,
    "page_size": 10,
    "total_count": 3592,
    "total_pages": 360,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+Sample+Collection&page=16&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+Sample+Collection&page=14&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-18T15:48:18.673Z",
  "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": "NCT03689907",
      "title": "Early Chimerism Following Allogeneic Stem-Cell Transplant",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Allogeneic Stem-Cell Transplant"
      ],
      "interventions": [
        {
          "name": "Chimerism Evaluation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 40,
      "start_date": "2019-12-19",
      "completion_date": "2024-12-30",
      "has_results": false,
      "last_update_posted_date": "2025-04-04",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03689907"
    },
    {
      "nct_id": "NCT05186311",
      "title": "BD MiniDraw™ Capillary System Clinical Equivalence Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [],
      "conditions": [
        "Healthy",
        "Disease, Chronic",
        "Acute Disease",
        "Sample Collection"
      ],
      "interventions": [
        {
          "name": "Capillary Blood Collection System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Becton, Dickinson and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 262,
      "start_date": "2022-04-22",
      "completion_date": "2022-10-24",
      "has_results": true,
      "last_update_posted_date": "2023-11-03",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05186311"
    },
    {
      "nct_id": "NCT01435304",
      "title": "The Effect of the Hemobag® Ultrafiltration System on Blood Conservation and Coagulation After Cardiopulmonary Bypass",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Blood Coagulation Disorders"
      ],
      "interventions": [
        {
          "name": "method of returning residual CPB blood ( Hemobag®)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "MaineHealth",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2011-09",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2018-06-06",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 1,
      "location_summary": "Portland, Maine",
      "locations": [
        {
          "city": "Portland",
          "state": "Maine"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01435304"
    },
    {
      "nct_id": "NCT03116633",
      "title": "Concordance of Inivata Liquid Biopsy With Standard Tissue Biopsy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-Small Cell Lung Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Inivata",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2017-06-30",
      "completion_date": "2018-12-31",
      "has_results": false,
      "last_update_posted_date": "2019-05-16",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 6,
      "location_summary": "Fort Smith, Arkansas • Joplin, Missouri • Springfield, Missouri + 3 more",
      "locations": [
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        },
        {
          "city": "Joplin",
          "state": "Missouri"
        },
        {
          "city": "Springfield",
          "state": "Missouri"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        },
        {
          "city": "Allentown",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03116633"
    },
    {
      "nct_id": "NCT03331367",
      "title": "Investigating and Characterizing the Immune Response to Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Urine sample",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2017-09-14",
      "completion_date": "2020-02-25",
      "has_results": false,
      "last_update_posted_date": "2020-08-07",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 1,
      "location_summary": "Mineola, New York",
      "locations": [
        {
          "city": "Mineola",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03331367"
    },
    {
      "nct_id": "NCT05844033",
      "title": "Biomarker for Infection Risk in CLL and MM",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Myeloma",
        "Chronic Lymphocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "Screening",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2023-08-01",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-19",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05844033"
    },
    {
      "nct_id": "NCT02941029",
      "title": "RADTOX: Measuring Radiation Toxicity Using Circulating DNA",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Plasma Blood collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 68,
      "start_date": "2016-10",
      "completion_date": "2017-07",
      "has_results": false,
      "last_update_posted_date": "2019-08-29",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 2,
      "location_summary": "Gainesville, Florida • Jacksonville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02941029"
    },
    {
      "nct_id": "NCT06630429",
      "title": "A Pilot Study of Blood-based Biomarkers for Response to Immune Checkpoint Inhibitors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-Small Cell Lung Cancer",
        "Renal Cell Carcinoma (RCC)"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2020-09-02",
      "completion_date": "2027-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-30",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06630429"
    },
    {
      "nct_id": "NCT02981329",
      "title": "Fetal Hemoglobin Induction Treatment Metformin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Sickle Cell Anemia",
        "Sickle Cell Disease",
        "Hemoglobin Disorder"
      ],
      "interventions": [
        {
          "name": "Metformin",
          "type": "DRUG"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "10 Years to 60 Years"
      },
      "enrollment_count": 37,
      "start_date": "2017-03-02",
      "completion_date": "2020-07-20",
      "has_results": false,
      "last_update_posted_date": "2023-10-12",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 2,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02981329"
    },
    {
      "nct_id": "NCT03737006",
      "title": "Coxsackie Virus in Pregnancy and Congenital Heart Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Heart Disease in Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 122,
      "start_date": "2016-03-01",
      "completion_date": "2018-12-01",
      "has_results": false,
      "last_update_posted_date": "2022-08-04",
      "last_synced_at": "2026-10-18T15:48:18.673Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03737006"
    }
  ]
}