{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+Sampling&page=4",
    "query": {
      "intervention": "Blood Sampling",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 1554,
    "total_pages": 156,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+Sampling&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+Sampling&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-18T03:03:08.921Z",
  "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": "NCT02457663",
      "title": "Identification and Validation of Biomarkers for Infections in Burns",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Burns Involving 20% or More of Body Surface"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "The University of Texas Medical Branch, Galveston",
      "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": 19,
      "start_date": "2015-04",
      "completion_date": "2019-07-11",
      "has_results": false,
      "last_update_posted_date": "2019-09-24",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 3,
      "location_summary": "Dallas, Texas • Fort Sam Houston, Texas • Houston, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Fort Sam Houston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02457663"
    },
    {
      "nct_id": "NCT06371521",
      "title": "Ergogenic Effects of Sportlegs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Performance Enhancing Product Use"
      ],
      "interventions": [
        {
          "name": "Sportlegs",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Christopher Bell",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 19,
      "start_date": "2024-01-24",
      "completion_date": "2024-06-01",
      "has_results": false,
      "last_update_posted_date": "2024-07-12",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 1,
      "location_summary": "Fort Collins, Colorado",
      "locations": [
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06371521"
    },
    {
      "nct_id": "NCT04107285",
      "title": "Looking at Cognitive and Brain Changes in People With Lymphoma Receiving CAR-T Therapy",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lymphoma Receiving CAR-T Therapy"
      ],
      "interventions": [
        {
          "name": "neurocognitive evaluations",
          "type": "BEHAVIORAL"
        },
        {
          "name": "brain MRIs",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "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": 120,
      "start_date": "2019-09-25",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2025-10-24",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04107285"
    },
    {
      "nct_id": "NCT00963235",
      "title": "Safety & Immunogenicity of 13vPnC in HIV-Infected Subjects Aged 18 or Older Who Were Previously Immunized With 23vPS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV Infections",
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "13-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 331,
      "start_date": "2009-11",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2013-06-10",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 15,
      "location_summary": "San Francisco, California • Aurora, Colorado • Washington D.C., District of Columbia + 8 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Springfield",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00963235"
    },
    {
      "nct_id": "NCT03490968",
      "title": "The Impact of Branched-Chain Amino Acid Metabolism on Limb Dysfunction in PAD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Peripheral Arterial Disease"
      ],
      "interventions": [
        {
          "name": "Supervised Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Vascular Assessment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2018-05-22",
      "completion_date": "2023-08-22",
      "has_results": false,
      "last_update_posted_date": "2024-02-29",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03490968"
    },
    {
      "nct_id": "NCT02815917",
      "title": "Evaluation of D3 Receptor Occupancy Using FLUORTRIOPRIDE ([18F]FTP) PET/CT",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "D3 Dopamine Receptor",
        "Cocaine-dependent",
        "Healthy Volunteer"
      ],
      "interventions": [
        {
          "name": "[18F]FTP PET/CT",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 30,
      "start_date": "2016-06",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-08-10",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02815917"
    },
    {
      "nct_id": "NCT06315309",
      "title": "Trial of 2 Step ATG for Acute GVHD Prevention Post Myeloablative Allogeneic Stem Cell Transplant",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "GVHD,Acute",
        "Acute Leukemia",
        "Myelodysplastic Syndromes",
        "Myeloproliferative Disorders"
      ],
      "interventions": [
        {
          "name": "ATG Combined with Tacrolimus and Mini Methotrexate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 29,
      "start_date": "2025-04-15",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2026-10-09",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06315309"
    },
    {
      "nct_id": "NCT01712776",
      "title": "Vapocoolant (Pain Ease) Use for Venipuncture",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "Vapocoolant (Pain Ease)",
          "type": "DEVICE"
        },
        {
          "name": "Nature's Tears Sterile Water",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "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": 100,
      "start_date": "2011-04",
      "completion_date": "2012-02",
      "has_results": true,
      "last_update_posted_date": "2025-08-29",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01712776"
    },
    {
      "nct_id": "NCT03011931",
      "title": "Simvastatin Metabolism as a Test for CD Activity (IRB 15-007568]",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Celiac Disease"
      ],
      "interventions": [
        {
          "name": "Simvastatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Entero Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2016-03",
      "completion_date": "2019-02",
      "has_results": false,
      "last_update_posted_date": "2024-08-05",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03011931"
    },
    {
      "nct_id": "NCT04366544",
      "title": "Effects of an 8-day Advanced Meditation, Samyama on Physical, Psychological and Spiritual Wellbeing ,and Associated Neural Mechanisms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mental Health Wellness 1",
        "Happiness",
        "Depression",
        "Consciousness, Level Altered",
        "Ecstasy",
        "Dietary Habits",
        "Stress",
        "Inflammatory Bowel Diseases"
      ],
      "interventions": [
        {
          "name": "Part A1: Survey",
          "type": "OTHER"
        },
        {
          "name": "Part A2: Sample collection",
          "type": "OTHER"
        },
        {
          "name": "Part B:",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 759,
      "start_date": "2018-01-19",
      "completion_date": "2018-07-31",
      "has_results": false,
      "last_update_posted_date": "2024-10-03",
      "last_synced_at": "2026-10-18T03:03:08.921Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04366544"
    }
  ]
}