{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=biospecimen+Collection&page=17",
    "query": {
      "intervention": "biospecimen Collection",
      "page": 17
    },
    "page_size": 10
  },
  "pagination": {
    "page": 17,
    "page_size": 10,
    "total_count": 3528,
    "total_pages": 353,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=biospecimen+Collection&page=18&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=biospecimen+Collection&page=16&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-11T09:07:30.350Z",
  "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": "NCT02246738",
      "title": "Initial Evaluation of a Telomerase-based Circulating Tumor Cell Assay in Bladder Cancer Cohorts",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Urothelial Carcinoma of the Bladder"
      ],
      "interventions": [
        {
          "name": "Blood Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 87,
      "start_date": "2014-08",
      "completion_date": "2020-10",
      "has_results": false,
      "last_update_posted_date": "2020-12-10",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02246738"
    },
    {
      "nct_id": "NCT06556238",
      "title": "Metabolism-Informed Care to Aid Alaska Native People to Quit Smoking (QUIT)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Nicotine Metabolite Ratio",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Southcentral Foundation",
      "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": "2025-11-17",
      "completion_date": "2026-06",
      "has_results": false,
      "last_update_posted_date": "2026-04-24",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 1,
      "location_summary": "Anchorage, Alaska",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06556238"
    },
    {
      "nct_id": "NCT04408105",
      "title": "Survey Study on Barrett's Esophagus Screening",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gastroesophageal Reflux Disease",
        "Barrett's Esophagus",
        "Esophagus Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Primary Care Provider Survey",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Gastroenterologist Survey",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Survey",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 725,
      "start_date": "2020-02-19",
      "completion_date": "2025-10-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-22",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 7,
      "location_summary": "Aurora, Colorado • Philadelphia, Pennsylvania • Dallas, Texas",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04408105"
    },
    {
      "nct_id": "NCT04468841",
      "title": "Measuring Cell-Free DNA (cfDNA) Levels in People With Follicular Lymphoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Follicular Lymphoma"
      ],
      "interventions": [
        {
          "name": "cfDNA testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "sample of saliva or fingernail clipping",
          "type": "OTHER"
        },
        {
          "name": "pre-treatment test specimen",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "PET/CT, CT, or MRI testing",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 77,
      "start_date": "2020-07-08",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "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/NCT04468841"
    },
    {
      "nct_id": "NCT00842452",
      "title": "Topotecan in Treating Patients With Gynecologic Cancer That Cannot Be Removed by Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cervical Cancer",
        "Endometrial Cancer",
        "Fallopian Tube Cancer",
        "Ovarian Cancer",
        "Sarcoma",
        "Vaginal Cancer",
        "Vulvar Cancer"
      ],
      "interventions": [
        {
          "name": "topotecan hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Steven Waggoner, MD",
      "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": 26,
      "start_date": "2009-02",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2013-04-05",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00842452"
    },
    {
      "nct_id": "NCT04841447",
      "title": "Membrane Target Detection for Leukemia Treatment",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hematological Malignancy"
      ],
      "interventions": [
        {
          "name": "Study sample collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Missouri-Columbia",
      "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": "2020-03-20",
      "completion_date": "2027-03-20",
      "has_results": false,
      "last_update_posted_date": "2025-12-10",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 1,
      "location_summary": "Columbia, Missouri",
      "locations": [
        {
          "city": "Columbia",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04841447"
    },
    {
      "nct_id": "NCT06151847",
      "title": "Lifileucel With Reduced Dose Fludarabine/Cyclophosphamide Lymphodepletion and Interleukin-2 for the Treatment of Patients With Unresectable or Metastatic Melanoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Metastatic Melanoma",
        "Pathologic Stage IIIC Cutaneous Melanoma AJCC v8",
        "Unresectable Melanoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Interleukin-2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Lifileucel",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Tumor Resection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 11,
      "start_date": "2023-12-21",
      "completion_date": "2025-07-10",
      "has_results": false,
      "last_update_posted_date": "2026-04-30",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06151847"
    },
    {
      "nct_id": "NCT07025538",
      "title": "Biomarker-Guided Ruxolitinib for the Prevention of Chronic Graft Versus Host Disease After Allogeneic Hematopoietic Cell Transplantation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hematopoietic and Lymphatic System Neoplasm"
      ],
      "interventions": [
        {
          "name": "Best Practice",
          "type": "OTHER"
        },
        {
          "name": "Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Ruxolitinib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2026-04-29",
      "completion_date": "2028-06-22",
      "has_results": false,
      "last_update_posted_date": "2026-09-22",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07025538"
    },
    {
      "nct_id": "NCT04293458",
      "title": "Efficacy of EsoGuard on Samples Collected Using EsoCheck Versus EGD for the Diagnosis of BE",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Barrett Esophagus",
        "Esophageal Adenocarcinoma",
        "Barretts Esophagus With Dysplasia",
        "Barrett's Esophagus Without Dysplasia"
      ],
      "interventions": [
        {
          "name": "EsoGuard",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Lucid Diagnostics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "50 Years and older · Male only"
      },
      "enrollment_count": 145,
      "start_date": "2020-02-28",
      "completion_date": "2022-08-22",
      "has_results": false,
      "last_update_posted_date": "2023-01-25",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 24,
      "location_summary": "Orange, California • Englewood, Colorado • Naples, Florida + 20 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "Naples",
          "state": "Florida"
        },
        {
          "city": "Palm Harbor",
          "state": "Florida"
        },
        {
          "city": "Macon",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04293458"
    },
    {
      "nct_id": "NCT05214105",
      "title": "The Predictive Capacity of Machine Learning Models for Progressive Kidney Disease in Individuals With Sickle Cell Anemia",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sickle Cell Disease",
        "Kidney Diseases, Chronic"
      ],
      "interventions": [
        {
          "name": "Biospecimen/DNA collection and analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Tennessee",
      "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": 400,
      "start_date": "2022-07-05",
      "completion_date": "2026-01-31",
      "has_results": false,
      "last_update_posted_date": "2023-12-14",
      "last_synced_at": "2026-11-11T09:07:30.350Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois • Winston-Salem, North Carolina • Memphis, Tennessee",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05214105"
    }
  ]
}