{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+draw+%28before+surgery%29&page=4",
    "query": {
      "intervention": "Blood draw (before surgery)",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 1141,
    "total_pages": 115,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+draw+%28before+surgery%29&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+draw+%28before+surgery%29&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T11:20:16.972Z",
  "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": "NCT01474785",
      "title": "RYGB and the Gastric Adipose Axis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "human ghrelin",
          "type": "DRUG"
        },
        {
          "name": "very low calorie diet",
          "type": "OTHER"
        },
        {
          "name": "Hyperinsulinemic/Euglycemic Clamp",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 49,
      "start_date": "2012-01",
      "completion_date": "2015-07",
      "has_results": false,
      "last_update_posted_date": "2018-05-21",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01474785"
    },
    {
      "nct_id": "NCT02250352",
      "title": "Core Biopsies for Establishing a Breast Tumor Tissue Repository",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "cytology specimen collection procedure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2013-11-14",
      "completion_date": "2027-11-14",
      "has_results": false,
      "last_update_posted_date": "2026-05-13",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02250352"
    },
    {
      "nct_id": "NCT03769311",
      "title": "Cetuximab in Head and Neck Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Head and Neck Cancer",
        "Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Cetuximab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 15,
      "start_date": "2019-04-17",
      "completion_date": "2022-03-15",
      "has_results": true,
      "last_update_posted_date": "2023-05-24",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03769311"
    },
    {
      "nct_id": "NCT00847171",
      "title": "Trastuzumab, Cyclophosphamide, and Vaccine Therapy in Treating Patients With High-Risk or Metastatic Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "allogeneic GM-CSF-secreting breast cancer vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "trastuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "flow cytometry",
          "type": "OTHER"
        },
        {
          "name": "immunoenzyme technique",
          "type": "OTHER"
        },
        {
          "name": "immunohistochemistry staining method",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        },
        {
          "name": "biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 20,
      "start_date": "2008-12",
      "completion_date": "2013-06",
      "has_results": true,
      "last_update_posted_date": "2018-09-26",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00847171"
    },
    {
      "nct_id": "NCT00176904",
      "title": "Stem Cell Transplant for Inborn Errors of Metabolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Adrenoleukodystrophy",
        "Metachromatic Leukodystrophy",
        "Globoid Cell Leukodystrophy",
        "Gaucher's Disease",
        "Fucosidosis",
        "Wolman Disease",
        "Niemann-Pick Disease",
        "Batten Disease",
        "GM1 Gangliosidosis",
        "Tay Sachs Disease",
        "Sandhoff Disease"
      ],
      "interventions": [
        {
          "name": "Stem Cell Transplant",
          "type": "PROCEDURE"
        },
        {
          "name": "Busulfan, Cyclophosphamide, Antithymocyte Globulin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 135,
      "start_date": "1995-01",
      "completion_date": "2010-06",
      "has_results": true,
      "last_update_posted_date": "2017-12-28",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00176904"
    },
    {
      "nct_id": "NCT00582257",
      "title": "Early Onset and Familial Gastric Cancer Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gastric Cancer"
      ],
      "interventions": [
        {
          "name": "questionnaires",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 971,
      "start_date": "2005-12-13",
      "completion_date": "2024-09-30",
      "has_results": false,
      "last_update_posted_date": "2024-10-03",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 9,
      "location_summary": "Los Angeles, California • Basking Ridge, New Jersey • Middletown, New Jersey + 5 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "East White Plains",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00582257"
    },
    {
      "nct_id": "NCT02483000",
      "title": "Anti-CD20 Radioimmunotherapy Before Chemotherapy and Stem Cell Transplant in Treating Patients With High-Risk B-Cell Malignancies",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Burkitt Lymphoma",
        "CD20-Positive Neoplastic Cells Present",
        "Diffuse Large B-Cell Lymphoma",
        "Indolent Non-Hodgkin Lymphoma",
        "Mantle Cell Lymphoma",
        "Recurrent B-Cell Non-Hodgkin Lymphoma",
        "Refractory Mature B-Cell Non-Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "Anti-CD20 B9E9 scFv-Streptavidin Fusion Protein",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Autologous Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Carmustine",
          "type": "DRUG"
        },
        {
          "name": "Clearing Agent",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Indium In 111-DOTA-Biotin",
          "type": "RADIATION"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Melphalan",
          "type": "DRUG"
        },
        {
          "name": "Peripheral Blood Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Yttrium Y 90-DOTA-Biotin",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "DRUG",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson 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": 3,
      "start_date": "2017-02-01",
      "completion_date": "2020-09-02",
      "has_results": true,
      "last_update_posted_date": "2020-11-23",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02483000"
    },
    {
      "nct_id": "NCT00734136",
      "title": "Role Of Angiogenic Factors In The Development Of Hepatorenal Syndrome",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hepatorenal Syndrome",
        "Renal Failure",
        "Liver Diseases"
      ],
      "interventions": [
        {
          "name": "Blood Draws and a hepatectomy specimen",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood draw - pre operative standard of care",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Lahey Clinic",
      "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": "2005-05",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2009-02-18",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 1,
      "location_summary": "Burlington, Massachusetts",
      "locations": [
        {
          "city": "Burlington",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00734136"
    },
    {
      "nct_id": "NCT00167206",
      "title": "Stem Cell Transplantation for Fanconi Anemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Fanconi Anemia"
      ],
      "interventions": [
        {
          "name": "Hematopoietic Stem Cell Transplant",
          "type": "PROCEDURE"
        },
        {
          "name": "Thymic Shielding During Radiation",
          "type": "PROCEDURE"
        },
        {
          "name": "Total Body Irradiation",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide, Fludarabine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "1 Day to 18 Years"
      },
      "enrollment_count": 16,
      "start_date": "2004-03",
      "completion_date": "2008-12",
      "has_results": true,
      "last_update_posted_date": "2019-08-26",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00167206"
    },
    {
      "nct_id": "NCT01913405",
      "title": "Phase 3 Efficacy and Safety Study of BAX 855 in Severe Hemophilia A Patients Undergoing Surgical Procedures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hemophilia A"
      ],
      "interventions": [
        {
          "name": "PEGylated Recombinant factor VIII (rFVIII)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Baxalta now part of Shire",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "12 Years to 65 Years · Male only"
      },
      "enrollment_count": 30,
      "start_date": "2013-12-20",
      "completion_date": "2016-09-23",
      "has_results": true,
      "last_update_posted_date": "2021-05-24",
      "last_synced_at": "2026-10-07T11:20:16.972Z",
      "location_count": 8,
      "location_summary": "Gainesville, Florida • Peoria, Illinois • Louisville, Kentucky + 5 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01913405"
    }
  ]
}