{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=OPTIONAL%3A+blood+draw&page=2",
    "query": {
      "intervention": "OPTIONAL: blood draw",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 338,
    "total_pages": 34,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=OPTIONAL%3A+blood+draw&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=OPTIONAL%3A+blood+draw&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T05:57:19.832Z",
  "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": "NCT02296684",
      "title": "Immunotherapy With MK-3475 in Surgically Resectable Head and Neck Squamous Cell Carcinoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cancer of Head and Neck",
        "Head and Neck Cancer",
        "Neoplasms, Head and Neck",
        "Carcinoma, Squamous Cell of Head and Neck",
        "Squamous Cell Carcinoma of the Head and Neck",
        "Squamous Cell Carcinoma, Head and Neck"
      ],
      "interventions": [
        {
          "name": "MK-3475 (neoadjuvant)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Intensity modulated radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "Image-guided radiation therapy",
          "type": "RADIATION"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "MK-3475 (adjuvant)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Peripheral blood",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "RADIATION",
        "DRUG"
      ],
      "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": 67,
      "start_date": "2015-03-25",
      "completion_date": "2025-07-21",
      "has_results": true,
      "last_update_posted_date": "2026-08-05",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 3,
      "location_summary": "Boston, Massachusetts • St Louis, Missouri • New York, New York",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02296684"
    },
    {
      "nct_id": "NCT03589716",
      "title": "Evaluating the Accuracy of an Integrated Vital Sign Measurement Platform",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Multimorbidity"
      ],
      "interventions": [
        {
          "name": "Vital Moto Mod",
          "type": "OTHER"
        },
        {
          "name": "Welch Allyn Connex Spot Vital Signs Monitor",
          "type": "OTHER"
        },
        {
          "name": "Capnostream 20 Portable Bedside Capnograph",
          "type": "OTHER"
        },
        {
          "name": "Welch Allyn 767 Mobile Aneroid Sphygmomanometerand 3M Littmann Master Classic II Teaching Stethoscope",
          "type": "OTHER"
        },
        {
          "name": "Scifit 1000R cycle ergometer",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 265,
      "start_date": "2018-07-23",
      "completion_date": "2019-12-30",
      "has_results": false,
      "last_update_posted_date": "2020-09-01",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03589716"
    },
    {
      "nct_id": "NCT00416715",
      "title": "Vitamin D Deficiency, Muscle Pain, Joint Pain, and Joint Stiffness in Postmenopausal Women Receiving Letrozole For Stage I-III Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Arthralgia",
        "Musculoskeletal Complications",
        "Pain",
        "Recurrent Breast Cancer",
        "Stage I Breast Cancer",
        "Stage II Breast Cancer",
        "Stage IIIA Breast Cancer",
        "Stage IIIB Breast Cancer",
        "Stage IIIC Breast Cancer"
      ],
      "interventions": [
        {
          "name": "letrozole",
          "type": "DRUG"
        },
        {
          "name": "calcium carbonate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "calcium citrate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "calcium glucarate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "calcium gluconate",
          "type": "DRUG"
        },
        {
          "name": "cholecalciferol",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "assessment of therapy complications",
          "type": "PROCEDURE"
        },
        {
          "name": "musculoskeletal complications management/prevention",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "University of Washington",
      "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": 100,
      "start_date": "2006-10",
      "completion_date": "2010-05",
      "has_results": true,
      "last_update_posted_date": "2017-07-11",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00416715"
    },
    {
      "nct_id": "NCT04259125",
      "title": "Evaluating the Role of Inflammation in Neonatal Epileptogenesis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Neonatal Seizure",
        "Epilepsy",
        "Seizures",
        "Inflammatory Response"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "4 Days",
        "sex": "ALL",
        "summary": "1 Day to 4 Days"
      },
      "enrollment_count": 72,
      "start_date": "2018-12-15",
      "completion_date": "2025-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-26",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 4,
      "location_summary": "Oakland, California • San Francisco, California • Boston, Massachusetts + 1 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04259125"
    },
    {
      "nct_id": "NCT05890352",
      "title": "Study Adding Drugs to Usual Treatment for Large B-Cell Lymphoma That Returned or Did Not Respond to Treatment",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Grade 3b Follicular Lymphoma",
        "High Grade B-Cell Lymphoma",
        "High Grade B-Cell Lymphoma With MYC and BCL2 and/or BCL6 Rearrangements",
        "Recurrent Diffuse Large B-Cell Lymphoma",
        "Refractory Diffuse Large B-Cell Lymphoma",
        "Transformed Non-Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Lenalidomide",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Tafasitamab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tazemetostat",
          "type": "DRUG"
        },
        {
          "name": "Zanubrutinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 227,
      "start_date": "2023-09-26",
      "completion_date": "2029-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-20",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 104,
      "location_summary": "Tucson, Arizona • Beverly Hills, California • Duarte, California + 81 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05890352"
    },
    {
      "nct_id": "NCT07221825",
      "title": "Low-Count Quantitative SPECT for Men Treated With Radium-223",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer",
        "Cancer of the Prostate"
      ],
      "interventions": [
        {
          "name": "Low-count quantitative single-photon emission computed tomography imaging",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 38,
      "start_date": "2026-09-01",
      "completion_date": "2028-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-21",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07221825"
    },
    {
      "nct_id": "NCT06368817",
      "title": "A Study of Lower Radiotherapy Dose to Treat Children With CNS Germinoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Basal Ganglia Germinoma",
        "Diabetes Insipidus",
        "Germinoma",
        "Pineal Region Germinoma",
        "Suprasellar Germinoma",
        "Thalamic Germinoma"
      ],
      "interventions": [
        {
          "name": "3-Dimensional Conformal Proton Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "3-Dimensional Conformal Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Intensity-Modulated Proton Therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Intensity-Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Lumbar Puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Surgical Procedure",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "3 Years to 29 Years"
      },
      "enrollment_count": 240,
      "start_date": "2024-10-22",
      "completion_date": "2033-11-04",
      "has_results": false,
      "last_update_posted_date": "2026-08-25",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 97,
      "location_summary": "Mobile, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 76 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06368817"
    },
    {
      "nct_id": "NCT07293715",
      "title": "Permissive Versus Strict Intrapartum Glucose Management in Type 1 Diabetes (PRISM-T1D)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pregnancy, High Risk",
        "Type 1 Diabetes"
      ],
      "interventions": [
        {
          "name": "Insulin",
          "type": "DRUG"
        },
        {
          "name": "DEXCOM Continuous Glucose Monitor",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Ohio State University",
      "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": 44,
      "start_date": "2026-02-25",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07293715"
    },
    {
      "nct_id": "NCT02066909",
      "title": "A Study To Observe Safety And Blood Concentrations Of PF-06649751 During And Following The Oral Administration Of Multiple Doses Of PF-06649751 In Healthy Adult Western and Japanese Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "0.15 mg PF-06649751",
          "type": "DRUG"
        },
        {
          "name": "0.5 mg PF-06649751",
          "type": "DRUG"
        },
        {
          "name": "1.5 mg PF-06649751",
          "type": "DRUG"
        },
        {
          "name": "1.5 mg PF-06649751 21 Days",
          "type": "DRUG"
        },
        {
          "name": "3.0 mg PF-06649751",
          "type": "DRUG"
        },
        {
          "name": "5.0 mg PF-06649751",
          "type": "DRUG"
        },
        {
          "name": "8.0 mg PF-06649751",
          "type": "DRUG"
        },
        {
          "name": "1.5 mg PF-06649751 in healthy Japanese subjects",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 77,
      "start_date": "2014-02",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2015-06-24",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02066909"
    },
    {
      "nct_id": "NCT00458484",
      "title": "Radiosurgery in Treating Patients With Kidney Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Cancer"
      ],
      "interventions": [
        {
          "name": "stereotactic radiosurgery",
          "type": "RADIATION"
        },
        {
          "name": "Renal Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Serum Blood Markers",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE"
      ],
      "sponsor": "Case Comprehensive 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": 31,
      "start_date": "2007-02-20",
      "completion_date": "2019-09-12",
      "has_results": true,
      "last_update_posted_date": "2020-07-22",
      "last_synced_at": "2026-10-02T05:57:19.832Z",
      "location_count": 3,
      "location_summary": "Cleveland, Ohio • Orange, Ohio • Westlake, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Orange",
          "state": "Ohio"
        },
        {
          "city": "Westlake",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00458484"
    }
  ]
}