{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=40",
    "query": {
      "intervention": "Blood samples collected",
      "page": 40
    },
    "page_size": 10
  },
  "pagination": {
    "page": 40,
    "page_size": 10,
    "total_count": 4260,
    "total_pages": 426,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=41&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=39&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-15T10:50:56.675Z",
  "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": "NCT01200823",
      "title": "Collection of Blood, Bone Marrow, Leukapheresis, and Tissue Biopsy Samples From Patients and Their Family Members for Center for Human Immunology, Autoimmunity, and Inflammatory Diseases Laboratory Research Studies",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Idopathic Inflammatory/Autoimmune Syndromes"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 96,
      "start_date": "2010-07-01",
      "completion_date": "2018-09-18",
      "has_results": false,
      "last_update_posted_date": "2018-09-20",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01200823"
    },
    {
      "nct_id": "NCT04288427",
      "title": "5-Alpha Reductase 2 as a Marker of Resistance to 5ARI Therapy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Benign Prostatic Hyperplasia",
        "Prostate Hyperplasia",
        "Prostate Disease",
        "Prostate Hypertrophy",
        "Prostate Pain",
        "Lower Urinary Tract Symptoms",
        "Urinary Obstruction",
        "Urinary Tract Disease"
      ],
      "interventions": [
        {
          "name": "Finasteride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "50 Years and older · Male only"
      },
      "enrollment_count": 120,
      "start_date": "2020-09-25",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2025-10-28",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04288427"
    },
    {
      "nct_id": "NCT00579527",
      "title": "Phase I/II Thymus Transplantation With Immunosuppression #950",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "DiGeorge Anomaly",
        "Complete DiGeorge Anomaly",
        "Complete Atypical DiGeorge Anomaly",
        "Complete DiGeorge Syndrome",
        "Complete Atypical DiGeorge Syndrome"
      ],
      "interventions": [
        {
          "name": "Cultured Thymus Tissue for Implantation (CTTI)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Cultured Thymus Tissue Implantation and Parental Parathyroid Transplantation",
          "type": "OTHER"
        },
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Rabbit anti-thymocyte globulin",
          "type": "DRUG"
        },
        {
          "name": "Cyclosporine",
          "type": "DRUG"
        },
        {
          "name": "Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Methylprednisolone or Prednisolone",
          "type": "DRUG"
        },
        {
          "name": "Daclizumab",
          "type": "DRUG"
        },
        {
          "name": "Mycophenolate mofetil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER",
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Sumitomo Pharma Switzerland GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 14,
      "start_date": "2005-12-19",
      "completion_date": "2017-12-31",
      "has_results": true,
      "last_update_posted_date": "2022-03-25",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00579527"
    },
    {
      "nct_id": "NCT07294703",
      "title": "Factors Associated With Breast Cancer Risks and Outcomes",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "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": 750,
      "start_date": "2025-12-08",
      "completion_date": "2031-12-08",
      "has_results": false,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 7,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07294703"
    },
    {
      "nct_id": "NCT07087860",
      "title": "Therapeutic Plasma Exchange With Enfortumab Vedotin and Pembrolizumab for Treatment of Bladder Cancers",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Metastatic Bladder Urothelial Carcinoma",
        "Metastatic Renal Pelvis and Ureter Urothelial Carcinoma",
        "Refractory Bladder Urothelial Carcinoma",
        "Refractory Renal Pelvis and Ureter Urothelial Carcinoma",
        "Stage IV Bladder Cancer AJCC v7",
        "Stage IV Renal Pelvis and Ureter Cancer AJCC v7"
      ],
      "interventions": [
        {
          "name": "Best Practice",
          "type": "OTHER"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Central Venous Cannula Insertion",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Enfortumab Vedotin",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Plasmapheresis",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Antibody-Drug Conjugate Therapy",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Mayo Clinic",
      "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": "2025-08-01",
      "completion_date": "2028-08-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-08",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07087860"
    },
    {
      "nct_id": "NCT04151953",
      "title": "Myocardial Injury in Patients With Cardiac Implantable Electronic Devices Following Magnetic Resonance Imaging",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Magnetic Resonance Imaging (MRI)"
      ],
      "interventions": [
        {
          "name": "Blood sample collection",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 105,
      "start_date": "2019-10-08",
      "completion_date": "2021-12-01",
      "has_results": false,
      "last_update_posted_date": "2022-01-05",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04151953"
    },
    {
      "nct_id": "NCT05595577",
      "title": "Improving Exercise Capacity With a Tailored Physical Activity Intervention",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Non Hodgkin Lymphoma",
        "Heart; Functional Disturbance",
        "Hodgkin Lymphoma",
        "Quality of Life",
        "Stage I Breast Cancer",
        "Stage II Breast Cancer",
        "Stage III Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Exercise with Trainerize application",
          "type": "OTHER"
        },
        {
          "name": "Cardiopulmonary exercise testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "MRI scan",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Quality of Life Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive and Brain Function Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood draws",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIAGNOSTIC_TEST",
        "BEHAVIORAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 105,
      "start_date": "2023-03-01",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-09",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 2,
      "location_summary": "Winston-Salem, North Carolina • Richmond, Virginia",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05595577"
    },
    {
      "nct_id": "NCT04454528",
      "title": "BreastVAX: Radiation Boost to Enhance Immune Checkpoint Blockade Therapy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Hypofractionated radiotherapy",
          "type": "RADIATION"
        },
        {
          "name": "Pembrolizumab infusion",
          "type": "DRUG"
        },
        {
          "name": "Blood and tissue sampling",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2020-12-07",
      "completion_date": "2027-08",
      "has_results": false,
      "last_update_posted_date": "2026-03-10",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04454528"
    },
    {
      "nct_id": "NCT05235165",
      "title": "Thoracotomy Versus Thoracoscopic Management of Pulmonary Metastases in Patients With Osteosarcoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Metastatic Malignant Neoplasm in the Lung",
        "Metastatic Osteosarcoma",
        "Osteosarcoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Thoracoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Thoracotomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "Up to 50 Years"
      },
      "enrollment_count": 62,
      "start_date": "2022-04-01",
      "completion_date": "2031-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 220,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Kingman, Arizona + 142 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Kingman",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05235165"
    },
    {
      "nct_id": "NCT01230502",
      "title": "Mycophenolic Acid (MPA) Monotherapy in Liver Transplantation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Liver Transplant"
      ],
      "interventions": [
        {
          "name": "Group 1 Donor Specific Regulation (DSR) +, Mycophenolic acid (MPA) monotherapy",
          "type": "DRUG"
        },
        {
          "name": "data and sample collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "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": 11,
      "start_date": "2011-11",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2014-05-07",
      "last_synced_at": "2026-10-15T10:50:56.675Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01230502"
    }
  ]
}