{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sampling",
    "query": {
      "intervention": "Blood sampling"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1546,
    "total_pages": 155,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sampling&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T21:38:36.475Z",
  "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": "NCT01263613",
      "title": "Feasibility Study of Biomarkers of Response to Neoadjuvant Paclitaxel in Locally Advanced Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "tumor biopsy and blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "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": 6,
      "start_date": "2010-12",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2019-11-19",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01263613"
    },
    {
      "nct_id": "NCT03300882",
      "title": "PREDICT Cytomegalovirus (CMV)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Transplant"
      ],
      "interventions": [
        {
          "name": "Procedure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 84,
      "start_date": "2017-10-31",
      "completion_date": "2019-11-25",
      "has_results": false,
      "last_update_posted_date": "2020-08-06",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 3,
      "location_summary": "Baltimore, Maryland • Durham, North Carolina • Cleveland, Ohio",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03300882"
    },
    {
      "nct_id": "NCT00217789",
      "title": "Pathogen Specific Immunity in Patients With Sarcoidosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sarcoidosis"
      ],
      "interventions": [
        {
          "name": "Bronchoalveolar Lavage and Venipuncture",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Medicine and Dentistry of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 5,
      "start_date": "2004-07",
      "completion_date": "2008-06",
      "has_results": false,
      "last_update_posted_date": "2013-12-24",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 1,
      "location_summary": "Newark, New Jersey",
      "locations": [
        {
          "city": "Newark",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00217789"
    },
    {
      "nct_id": "NCT05359991",
      "title": "Exercise in Child Health",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cystic Fibrosis",
        "Sickle Cell Disease",
        "SARS CoV 2 Infection"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Irvine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "10 Years to 17 Years"
      },
      "enrollment_count": 240,
      "start_date": "2020-11-12",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-24",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 1,
      "location_summary": "Irvine, California",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05359991"
    },
    {
      "nct_id": "NCT03874559",
      "title": "Exosomes in Rectal Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rectal Cancer"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Kansas 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": 30,
      "start_date": "2018-02-13",
      "completion_date": "2028-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03874559"
    },
    {
      "nct_id": "NCT02132858",
      "title": "Genetic Mutations in Blood and Tissue Samples in Predicting Response to Treatment in Patients With Locally Advanced Rectal Cancer Undergoing Chemoradiation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mucinous Adenocarcinoma of the Rectum",
        "Recurrent Rectal Cancer",
        "Signet Ring Adenocarcinoma of the Rectum",
        "Stage IIA Rectal Cancer",
        "Stage IIB Rectal Cancer",
        "Stage IIC Rectal Cancer",
        "Stage IIIA Rectal Cancer",
        "Stage IIIB Rectal Cancer",
        "Stage IIIC Rectal Cancer"
      ],
      "interventions": [
        {
          "name": "cytology specimen collection procedure",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Fox Chase 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": 43,
      "start_date": "2014-07",
      "completion_date": "2022-10",
      "has_results": false,
      "last_update_posted_date": "2024-05-02",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02132858"
    },
    {
      "nct_id": "NCT04048018",
      "title": "Performance Evaluation of the VIDAS TB-IGRA Assay.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Active Tuberculosis",
        "Latent Tuberculosis Infection",
        "Non-Tuberculous Mycobacterial (NTM) Pneumonia"
      ],
      "interventions": [
        {
          "name": "Blood draw and IGRA test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "BioMérieux",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 2401,
      "start_date": "2019-12-05",
      "completion_date": "2021-06-30",
      "has_results": false,
      "last_update_posted_date": "2021-07-16",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 7,
      "location_summary": "Palo Alto, California • San Diego, California • Denver, Colorado + 4 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04048018"
    },
    {
      "nct_id": "NCT05437679",
      "title": "Characterization of Circulating Tumor Cells (CTCs) in High Risk and Early Metastatic Prostate Cancer Patients Using Parsortix® System",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "High Risk Prostate Carcinoma",
        "Biochemically Recurrent Prostate Carcinoma",
        "Castration-resistant Prostate Cancer",
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Blood collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Angle plc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 9,
      "start_date": "2022-07-05",
      "completion_date": "2023-08-22",
      "has_results": false,
      "last_update_posted_date": "2023-09-05",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 2,
      "location_summary": "Bala-Cynwyd, Pennsylvania • Pottstown, Pennsylvania",
      "locations": [
        {
          "city": "Bala-Cynwyd",
          "state": "Pennsylvania"
        },
        {
          "city": "Pottstown",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05437679"
    },
    {
      "nct_id": "NCT03129061",
      "title": "Study to Evaluate Immunological Response to PD-1 Inhibition in Squamous Cell Carcinoma of the Head and Neck (SCCHN)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Squamous Cell Carcinoma of the Head and Neck"
      ],
      "interventions": [
        {
          "name": "[18F]F-AraG PET Scan, baseline + post anti-PD-1 therapy.",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "CellSight Technologies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2017-05-01",
      "completion_date": "2022-12-01",
      "has_results": false,
      "last_update_posted_date": "2022-12-05",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03129061"
    },
    {
      "nct_id": "NCT01744197",
      "title": "Synera Venipuncture Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pain",
        "Phlebotomy",
        "Palliative Care"
      ],
      "interventions": [
        {
          "name": "Synera (lidocaine 70mg/tetracaine 70mg)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "US Oncology Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2013-01",
      "completion_date": "2013-11",
      "has_results": true,
      "last_update_posted_date": "2018-10-25",
      "last_synced_at": "2026-09-02T21:38:36.475Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01744197"
    }
  ]
}