{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sample+Collection+Blood&page=22",
    "query": {
      "intervention": "Sample Collection Blood",
      "page": 22
    },
    "page_size": 10
  },
  "pagination": {
    "page": 22,
    "page_size": 10,
    "total_count": 2812,
    "total_pages": 282,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sample+Collection+Blood&page=23&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sample+Collection+Blood&page=21&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T21:28:13.401Z",
  "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": "NCT04603326",
      "title": "FoxBioNet: ECV (Extracellular Vesicle) 004",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Parkinson Disease"
      ],
      "interventions": [
        {
          "name": "Lumbar Puncture",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Michael J. Fox Foundation for Parkinson's Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 140,
      "start_date": "2021-05-06",
      "completion_date": "2023-07-01",
      "has_results": false,
      "last_update_posted_date": "2023-10-16",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 4,
      "location_summary": "Chicago, Illinois • New York, New York • Portland, Oregon + 1 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04603326"
    },
    {
      "nct_id": "NCT04754425",
      "title": "Erdafitinib for the Treatment of Patients With Castration-Resistant Prostate Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Castration-Resistant Prostate Carcinoma",
        "Castration-Resistant Prostate Carcinoma Refractory to Second-Generation Androgen Receptor Axis-Targeted Agents",
        "Metastatic Malignant Neoplasm in the Bone",
        "Metastatic Prostate Adenocarcinoma",
        "Metastatic Prostate Small Cell Neuroendocrine Carcinoma",
        "Stage IV Prostate Cancer AJCC v8",
        "Stage IVA Prostate Cancer AJCC v8",
        "Stage IVB Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Erdafitinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "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": 11,
      "start_date": "2021-07-15",
      "completion_date": "2026-02-02",
      "has_results": false,
      "last_update_posted_date": "2026-02-06",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04754425"
    },
    {
      "nct_id": "NCT01792791",
      "title": "Post-traumatic Arthritis Associated With Joint Injury",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Arthritis"
      ],
      "interventions": [
        {
          "name": "Tissue sample collection at the time of surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2012-10",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2016-12-19",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01792791"
    },
    {
      "nct_id": "NCT04063397",
      "title": "Persistent Postpartum Cardiovascular Dysfunction in Patients With Preeclampsia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Preeclampsia Severe or Mild",
        "Cardiac Complication"
      ],
      "interventions": [
        {
          "name": "Echocardiogram",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood draw",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 27,
      "start_date": "2019-08-19",
      "completion_date": "2023-12-14",
      "has_results": false,
      "last_update_posted_date": "2024-01-10",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04063397"
    },
    {
      "nct_id": "NCT04099290",
      "title": "Circulating Tumor DNA (ctDNA) in Locally Advanced Head and Neck Squamous Cell Carcinoma",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head and Neck Neoplasm",
        "Carcinoma, Squamous Cell"
      ],
      "interventions": [
        {
          "name": "Blood and tumor samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "UNC Lineberger 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": 50,
      "start_date": "2020-01-14",
      "completion_date": "2027-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-06",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04099290"
    },
    {
      "nct_id": "NCT03226613",
      "title": "New Modalities for Detection of Oropharyngeal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papillomavirus Positive Oropharyngeal Squamous Cell Carcinoma",
        "Oropharynx Cancer",
        "Base of Tongue Carcinoma",
        "Tonsil Cancer"
      ],
      "interventions": [
        {
          "name": "Transcervical Oropharyngeal Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "Oral Rinse Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 51,
      "start_date": "2017-08-15",
      "completion_date": "2018-06-06",
      "has_results": false,
      "last_update_posted_date": "2019-03-13",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03226613"
    },
    {
      "nct_id": "NCT04872790",
      "title": "Venetoclax, Dasatinib, Prednisone, Rituximab and Blinatumomab for the Treatment of Newly Diagnosed or Relapsed Philadelphia Chromosome Positive Acute Lymphoblastic Leukemia or Mixed Phenotype Acute Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "B Acute Lymphoblastic Leukemia",
        "B Acute Lymphoblastic Leukemia With t(9;22)(q34.1;q11.2); BCR-ABL1",
        "Mixed Phenotype Acute Leukemia",
        "Recurrent B Acute Lymphoblastic Leukemia",
        "Recurrent Mixed Phenotype Acute Leukemia"
      ],
      "interventions": [
        {
          "name": "Dasatinib",
          "type": "DRUG"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        },
        {
          "name": "Blinatumomab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bone Marrow Aspiration and Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Lumbar Puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "OHSU Knight Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2022-09-02",
      "completion_date": "2027-12-02",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04872790"
    },
    {
      "nct_id": "NCT03418038",
      "title": "Ascorbic Acid and Chemotherapy for the Treatment of Relapsed or Refractory Lymphoma, CCUS, and Chronic Myelomonocytic Leukemia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Clonal Cytopenia of Undetermined Significance",
        "High Grade B-Cell Lymphoma With MYC and BCL2 or BCL6 Rearrangements",
        "Recurrent Diffuse Large B-Cell Lymphoma",
        "Recurrent Hodgkin Lymphoma",
        "Recurrent Lymphoma",
        "Refractory Diffuse Large B-Cell Lymphoma",
        "Refractory Lymphoma",
        "Chronic Myelomonocytic Leukemia"
      ],
      "interventions": [
        {
          "name": "Ascorbic Acid",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Oxaliplatin",
          "type": "DRUG"
        },
        {
          "name": "Placebo Administration",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Decitabine",
          "type": "DRUG"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Core Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Echocardiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Central Venous Cannula Insertion",
          "type": "PROCEDURE"
        },
        {
          "name": "Portacath Placement",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Decitabine and Cedazuridine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG",
        "OTHER",
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "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": 80,
      "start_date": "2018-03-23",
      "completion_date": "2033-11-02",
      "has_results": false,
      "last_update_posted_date": "2026-09-28",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 4,
      "location_summary": "Mankato, Minnesota • Rochester, Minnesota • Eau Claire, Wisconsin + 1 more",
      "locations": [
        {
          "city": "Mankato",
          "state": "Minnesota"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Eau Claire",
          "state": "Wisconsin"
        },
        {
          "city": "La Crosse",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03418038"
    },
    {
      "nct_id": "NCT02643043",
      "title": "UC-GENOME: Urothelial Cancer-GENOmic Analysis to iMprove Patient Outcomes and rEsearch",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Urothelial Carcinoma",
        "Bladder Cancer",
        "Urethral Cancer",
        "Cancer of the Ureter"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Matthew Milowsky, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 219,
      "start_date": "2017-07-26",
      "completion_date": "2023-09-13",
      "has_results": false,
      "last_update_posted_date": "2023-09-29",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 8,
      "location_summary": "Los Angeles, California • Chicago, Illinois • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02643043"
    },
    {
      "nct_id": "NCT07094750",
      "title": "Randomization for the Identification of Best Treatment Intensity for Less Fit Adults With Acute Myeloid Leukemia and Myeloid Neoplasms",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acute Leukemia of Ambiguous Lineage",
        "Acute Myeloid Leukemia",
        "Myeloid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Electronic Health Record Review",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "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": 50,
      "start_date": "2026-10-13",
      "completion_date": "2029-06-08",
      "has_results": false,
      "last_update_posted_date": "2026-10-19",
      "last_synced_at": "2026-10-20T21:28:13.401Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07094750"
    }
  ]
}