{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample+collection+only&page=2",
    "query": {
      "intervention": "Blood sample collection only",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample+collection+only&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T21:46:15.484Z",
  "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": "NCT02416154",
      "title": "Expression of IFN-epsilon in the Female Reproductive Tract",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Interferon Expression in the Female Reproductive Tract"
      ],
      "interventions": [
        {
          "name": "Reproductive tract and blood sampling",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 35 Years · Female only"
      },
      "enrollment_count": 32,
      "start_date": "2015-07",
      "completion_date": "2020-05",
      "has_results": false,
      "last_update_posted_date": "2021-12-27",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 2,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02416154"
    },
    {
      "nct_id": "NCT05477082",
      "title": "Blood Biomarkers in Pediatric Kidney Transplant Recipients",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rejection of Kidney Allograft"
      ],
      "interventions": [
        {
          "name": "Observational group",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 27,
      "start_date": "2023-08-21",
      "completion_date": "2026-11-01",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05477082"
    },
    {
      "nct_id": "NCT05272423",
      "title": "Studying Pathways of Resistance in KRAS-driven Cancers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "KRAS P.G12C"
      ],
      "interventions": [
        {
          "name": "FoundationOne® Liquid CDx",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Addario Lung Cancer Medical Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 58,
      "start_date": "2022-09-08",
      "completion_date": "2026-04-06",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05272423"
    },
    {
      "nct_id": "NCT01462448",
      "title": "Study to Identify the Genetic Variations Associated With Phantom Limb Pain",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Phantom Limb"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 726,
      "start_date": "2012-03",
      "completion_date": "2023-08-06",
      "has_results": false,
      "last_update_posted_date": "2025-08-12",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01462448"
    },
    {
      "nct_id": "NCT02652455",
      "title": "Combining PD-1 Blockade, CD137 Agonism and Adoptive Cell Therapy for Metastatic Melanoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Melanoma (Skin)",
        "Skin Cancer"
      ],
      "interventions": [
        {
          "name": "Nivolumab",
          "type": "DRUG"
        },
        {
          "name": "Surgery to Remove Tumor for Growth of TIL",
          "type": "PROCEDURE"
        },
        {
          "name": "CD137",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "TIL Infusion",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Interleukin-2",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "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": "2016-03-08",
      "completion_date": "2020-08-30",
      "has_results": false,
      "last_update_posted_date": "2025-08-19",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02652455"
    },
    {
      "nct_id": "NCT06470243",
      "title": "Testing Whether the Addition of Carboplatin Chemotherapy to Cabazitaxel Chemotherapy Will Improve Outcomes Compared to Cabazitaxel Alone in People With Castrate-Resistant Prostate Cancer That Has Spread Beyond the Prostate to Other Parts of the Body",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Castration-Resistant Prostate Carcinoma",
        "Stage IVB Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Cabazitaxel",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Chest Radiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 528,
      "start_date": "2024-11-27",
      "completion_date": "2034-04",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 174,
      "location_summary": "Fayetteville, Arkansas • Rogers, Arkansas • Springdale, Arkansas + 129 more",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Springdale",
          "state": "Arkansas"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Lewes",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06470243"
    },
    {
      "nct_id": "NCT02137876",
      "title": "Effects of Thymoglobulin on Human B Cells",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acute Humoral Rejections",
        "Chronic Humoral Rejections",
        "Transplant"
      ],
      "interventions": [
        {
          "name": "Blood Draws",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2014-04",
      "completion_date": "2018-03",
      "has_results": false,
      "last_update_posted_date": "2018-03-29",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02137876"
    },
    {
      "nct_id": "NCT01820117",
      "title": "Brain Integrity in Survivors of Hodgkin Lymphoma Treated With Thoracic Radiation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "Neurocognitive Evaluation",
          "type": "OTHER"
        },
        {
          "name": "Quantitative Brain Imaging",
          "type": "OTHER"
        },
        {
          "name": "Neurologic Evaluation",
          "type": "OTHER"
        },
        {
          "name": "Health Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Vascular Testing",
          "type": "OTHER"
        },
        {
          "name": "Cardiopulmonary Exercise Testing",
          "type": "OTHER"
        },
        {
          "name": "Echocardiography",
          "type": "OTHER"
        },
        {
          "name": "Pulmonary Function Testing",
          "type": "OTHER"
        },
        {
          "name": "Serum Biomarkers",
          "type": "PROCEDURE"
        },
        {
          "name": "Ophthalmology Examination",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 416,
      "start_date": "2013-04-26",
      "completion_date": "2018-02-20",
      "has_results": false,
      "last_update_posted_date": "2018-03-01",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01820117"
    },
    {
      "nct_id": "NCT04273893",
      "title": "Lymphocyte Depletion and Change in Lymphocyte Functionality",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lymphocyte Depletion"
      ],
      "interventions": [
        {
          "name": "SBRT with additional treatment planning dose optimization",
          "type": "RADIATION"
        },
        {
          "name": "SBRT with standard of care planning only",
          "type": "RADIATION"
        },
        {
          "name": "Blood Draws",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 55,
      "start_date": "2020-02-12",
      "completion_date": "2025-06-01",
      "has_results": true,
      "last_update_posted_date": "2024-12-10",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04273893"
    },
    {
      "nct_id": "NCT02981797",
      "title": "Assess Gamma H2AX Positivity in Circulating Prostate Cancer Cells Before and After Radium 223",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer",
        "Prostate Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Blood Collection During Standard of Care Treatment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "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": 10,
      "start_date": "2015-07-22",
      "completion_date": "2020-11-05",
      "has_results": false,
      "last_update_posted_date": "2021-06-11",
      "last_synced_at": "2026-09-24T21:46:15.484Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02981797"
    }
  ]
}