{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=phlebotomy&page=5",
    "query": {
      "intervention": "phlebotomy",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 1536,
    "total_pages": 154,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=phlebotomy&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=phlebotomy&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-21T22:06:05.572Z",
  "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": "NCT00588510",
      "title": "Detection of Circulating Osteosarcoma Tumor Cells in the Blood of Patients Using the Polymerase Chain Reaction",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Osteosarcoma"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Years and older"
      },
      "enrollment_count": 59,
      "start_date": "2000-01",
      "completion_date": "2011-09",
      "has_results": false,
      "last_update_posted_date": "2011-09-02",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00588510"
    },
    {
      "nct_id": "NCT00590941",
      "title": "Genetic Determinations for Side Effects and Response Rate for Patients Receiving Chemotherapy With Diffuse Large Cell Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lymphoma",
        "Diffuse Large Cell"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 52,
      "start_date": "2005-02",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2013-05-16",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00590941"
    },
    {
      "nct_id": "NCT05986916",
      "title": "Accurate Point of Care Liver Disease Diagnostics",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "NAFLD",
        "Nonalcoholic Fatty Liver"
      ],
      "interventions": [
        {
          "name": "Liverscope® exam",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MR exam",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "FibroScan® exam (optional)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood draw",
          "type": "OTHER"
        },
        {
          "name": "Body measurements",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2023-08-03",
      "completion_date": "2025-11",
      "has_results": false,
      "last_update_posted_date": "2025-10-23",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05986916"
    },
    {
      "nct_id": "NCT06721455",
      "title": "Modeling Blood Management and Hemolytic Risk in Pediatric Heart Surgery",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Surgery",
        "Blood Transfusion",
        "Hemolysis"
      ],
      "interventions": [
        {
          "name": "blood sampling",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "0 Years to 17 Years"
      },
      "enrollment_count": 50,
      "start_date": "2025-08-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06721455"
    },
    {
      "nct_id": "NCT04553471",
      "title": "Palliative Lattice Stereotactic Body Radiotherapy (SBRT) for Patients With Sarcoma, Thoracic, Abdominal, and Pelvic Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sarcoma",
        "Thoracic Cancer",
        "Abdominal Cancer",
        "Pelvic Cancer"
      ],
      "interventions": [
        {
          "name": "Stereotactic body radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "Research blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2020-09-22",
      "completion_date": "2023-05-04",
      "has_results": true,
      "last_update_posted_date": "2024-08-29",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04553471"
    },
    {
      "nct_id": "NCT01750463",
      "title": "Comparing Validity of Non-Invasive Hemoglobin Monitoring to Laboratory Results in Critically Ill Children",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hemoglobin Results"
      ],
      "interventions": [
        {
          "name": "Masimo Pronto Rad 7 Non-Invasive hemoglobin monitor",
          "type": "OTHER"
        },
        {
          "name": "Standard Laboratory Blood Draw and Hemoglobin Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Days",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "30 Days to 18 Years"
      },
      "enrollment_count": 65,
      "start_date": "2013-01",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2014-12-03",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01750463"
    },
    {
      "nct_id": "NCT05964504",
      "title": "Improving Survival for Metastatic Lobular Breast Cancer (PLUMB Registry)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Metastatic Breast Cancer",
        "Lobular Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Blood Specimen",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, San Francisco",
      "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": "2023-12-20",
      "completion_date": "2036-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 4,
      "location_summary": "San Diego, California • San Francisco, California • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05964504"
    },
    {
      "nct_id": "NCT04378777",
      "title": "Immunophenotyping Assessment in a COVID-19 Cohort",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coronavirus Disease 2019 (COVID-19)",
        "SARS-CoV-2"
      ],
      "interventions": [
        {
          "name": "Biological sample collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Data Collection: Clinical Care Assessments",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1227,
      "start_date": "2020-05-01",
      "completion_date": "2022-04-21",
      "has_results": false,
      "last_update_posted_date": "2022-05-19",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 17,
      "location_summary": "Tucson, Arizona • Los Angeles, California • San Francisco, California + 14 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04378777"
    },
    {
      "nct_id": "NCT00032357",
      "title": "Does the Reduction of Total Body Iron Storage (TBIS) Alter Mortality in a Population of Patients With Advanced PVD?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Atherosclerosis",
        "Intermittent Claudication",
        "Peripheral Vascular Diseases"
      ],
      "interventions": [
        {
          "name": "Ferritin reduction to 25 ng/ml by phlebotomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 1277,
      "start_date": "1999-05",
      "completion_date": "2005-09",
      "has_results": false,
      "last_update_posted_date": "2013-01-21",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 23,
      "location_summary": "Birmingham, Alabama • No. Little Rock, Arkansas • Long Beach, California + 20 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "No. Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "West Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00032357"
    },
    {
      "nct_id": "NCT02863172",
      "title": "Molecular Basis for Variations in Hereditary Colorectal Cancer Syndromes",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hereditary Colorectal Cancer Syndrome"
      ],
      "interventions": [
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood Draw/Saliva Sample",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "PROCEDURE"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2000,
      "start_date": "2012-05-22",
      "completion_date": "2027-05-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-07",
      "last_synced_at": "2026-10-21T22:06:05.572Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02863172"
    }
  ]
}