{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biospecimen+Collection&page=50",
    "query": {
      "intervention": "Biospecimen Collection",
      "page": 50
    },
    "page_size": 10
  },
  "pagination": {
    "page": 50,
    "page_size": 10,
    "total_count": 3512,
    "total_pages": 352,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biospecimen+Collection&page=51&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biospecimen+Collection&page=49&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-19T15:45:55.884Z",
  "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": "NCT02577731",
      "title": "Hematopoietic Stem Cell Dysfunction in the Elderly After Severe Injury",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Trauma Injury"
      ],
      "interventions": [
        {
          "name": "Bone marrow collection",
          "type": "OTHER"
        },
        {
          "name": "Blood collection",
          "type": "OTHER"
        },
        {
          "name": "Clinical data collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2014-01",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-15",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02577731"
    },
    {
      "nct_id": "NCT00769002",
      "title": "PET-CT Scans in Healthy Volunteers After Flu Vaccination",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Flu"
      ],
      "interventions": [
        {
          "name": "FluShield",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FluShield - same arm",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FluShield - opposite arm",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Blood Draws",
          "type": "PROCEDURE"
        },
        {
          "name": "FDG PET-CT Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Cytokine Profiling",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "GENETIC"
      ],
      "sponsor": "Hackensack Meridian Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "21 Years to 55 Years"
      },
      "enrollment_count": 18,
      "start_date": "2008-09",
      "completion_date": "2011-08",
      "has_results": true,
      "last_update_posted_date": "2020-10-19",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 1,
      "location_summary": "Hackensack, New Jersey",
      "locations": [
        {
          "city": "Hackensack",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00769002"
    },
    {
      "nct_id": "NCT04037527",
      "title": "Gemcitabine and Docetaxel With Radiation in Adults With Soft Tissue Sarcoma of the Extremities",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Soft Tissue Sarcoma"
      ],
      "interventions": [
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Radiation",
          "type": "RADIATION"
        },
        {
          "name": "Surgical Resection",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood draws",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2020-08-18",
      "completion_date": "2024-06-18",
      "has_results": false,
      "last_update_posted_date": "2026-07-06",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04037527"
    },
    {
      "nct_id": "NCT01112956",
      "title": "Serologic Assays for the Diagnosis of Herpes Simplex Virus Type 2",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Genital Herpes"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Centers for Disease Control and Prevention",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "16 Years to 55 Years"
      },
      "enrollment_count": 2500,
      "start_date": "2009-07",
      "completion_date": "2011-02",
      "has_results": false,
      "last_update_posted_date": "2011-03-23",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 3,
      "location_summary": "Baltimore, Maryland • Boston, Massachusetts • New York, New York",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01112956"
    },
    {
      "nct_id": "NCT03237780",
      "title": "Atezolizumab With or Without Eribulin Mesylate in Treating Patients With Recurrent Locally Advanced or Metastatic Urothelial Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Locally Advanced Bladder Urothelial Carcinoma",
        "Locally Advanced Renal Pelvis Urothelial Carcinoma",
        "Locally Advanced Ureter Urothelial Carcinoma",
        "Locally Advanced Urethral Urothelial Carcinoma",
        "Metastatic Bladder Urothelial Carcinoma",
        "Metastatic Renal Pelvis Urothelial Carcinoma",
        "Metastatic Ureter Urothelial Carcinoma",
        "Metastatic Urethral Urothelial Carcinoma",
        "Recurrent Bladder Urothelial Carcinoma",
        "Recurrent Renal Pelvis Urothelial Carcinoma",
        "Recurrent Ureter Urothelial Carcinoma",
        "Recurrent Urethral Urothelial Carcinoma",
        "Stage III Bladder Cancer AJCC v8",
        "Stage III Renal Pelvis Cancer AJCC v8",
        "Stage III Ureter Cancer AJCC v8",
        "Stage III Urethral Cancer AJCC v8",
        "Stage IV Bladder Cancer AJCC v8",
        "Stage IV Renal Pelvis Cancer AJCC v8",
        "Stage IV Ureter Cancer AJCC v8",
        "Stage IV Urethral Cancer AJCC v8",
        "Unresectable Bladder Urothelial Carcinoma",
        "Unresectable Renal Pelvis Urothelial Carcinoma",
        "Unresectable Ureter Urothelial Carcinoma",
        "Unresectable Urethral Urothelial Carcinoma"
      ],
      "interventions": [
        {
          "name": "Atezolizumab",
          "type": "DRUG"
        },
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography with Contrast",
          "type": "PROCEDURE"
        },
        {
          "name": "Eribulin Mesylate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 72,
      "start_date": "2018-07-20",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-31",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 21,
      "location_summary": "Birmingham, Alabama • Buena Park, California • Duarte, California + 15 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Buena Park",
          "state": "California"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03237780"
    },
    {
      "nct_id": "NCT04967196",
      "title": "Ipilimumab and Nivolumab for the Treatment of Stage III-IV Unresectable Metastatic Melanoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Clinical Stage III Cutaneous Melanoma AJCC v8",
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Metastatic Melanoma",
        "Unresectable Melanoma"
      ],
      "interventions": [
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Lymph Node Assessment",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "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": 6,
      "start_date": "2021-09-16",
      "completion_date": "2024-04-17",
      "has_results": false,
      "last_update_posted_date": "2024-12-10",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04967196"
    },
    {
      "nct_id": "NCT02367170",
      "title": "Project 4A: Inspiratory Muscle Training and Diaphragm Strength",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Sepsis"
      ],
      "interventions": [
        {
          "name": "Bilateral phrenic nerve stimulation and measurement of transdiaphragmatic pressure",
          "type": "PROCEDURE"
        },
        {
          "name": "Midazolam",
          "type": "DRUG"
        },
        {
          "name": "Volitional Measurement of Maximal Inspiratory Pressure (MIP)",
          "type": "PROCEDURE"
        },
        {
          "name": "Inspiratory Muscle Strength Training (IMST)",
          "type": "DEVICE"
        },
        {
          "name": "SHAM Inspiratory Muscle Strength Training (IMST)",
          "type": "DEVICE"
        },
        {
          "name": "Diaphragm thickness measurement",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood and Urine samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2015-03",
      "completion_date": "2015-07",
      "has_results": true,
      "last_update_posted_date": "2018-05-07",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02367170"
    },
    {
      "nct_id": "NCT04990726",
      "title": "Immune Related Toxicity and Symptom Burden in Chronic Cancer Survivors With Melanoma Receiving Adjuvant Immunotherapy With Immune Checkpoint Inhibitors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Clinical Stage III Cutaneous Melanoma AJCC v8",
        "Pathologic Stage III Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IIIA Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IIIB Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IIIC Cutaneous Melanoma AJCC v8",
        "Pathologic Stage IIID Cutaneous Melanoma AJCC v8",
        "Melanoma, Stage II",
        "Melanoma Stage IV"
      ],
      "interventions": [
        {
          "name": "Assessment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson 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": 126,
      "start_date": "2019-12-05",
      "completion_date": "2027-02-02",
      "has_results": false,
      "last_update_posted_date": "2026-09-18",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04990726"
    },
    {
      "nct_id": "NCT07046078",
      "title": "Combination Chemotherapy (FLAG-Ida) Followed Immediately by Reduced-Intensity Total Body Radiation Therapy and Donor Hematopoietic Cell Transplant for the Treatment of Adults Age 60 and Older With Newly Diagnosed Adverse-Risk Acute Myeloid Leukemia or Other High-Grade Myeloid Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Leukemia of Ambiguous Lineage",
        "Acute Myeloid Leukemia",
        "Chronic Myelomonocytic Leukemia",
        "Myelodysplastic Syndrome"
      ],
      "interventions": [
        {
          "name": "Allogeneic Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Idarubicin",
          "type": "DRUG"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Peripheral Blood Stem Cell",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Recombinant Granulocyte Colony-Stimulating Factor",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Total-Body Irradiation",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER",
        "RADIATION"
      ],
      "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": 20,
      "start_date": "2025-09-26",
      "completion_date": "2029-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-20",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07046078"
    },
    {
      "nct_id": "NCT05699213",
      "title": "MRI and Biomarkers for Lung Nodules Detected During Lung Cancer Screening",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Lung MRI",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood Draw",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Cedars-Sinai Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2023-06-27",
      "completion_date": "2026-08-27",
      "has_results": false,
      "last_update_posted_date": "2023-08-30",
      "last_synced_at": "2026-10-19T15:45:55.884Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05699213"
    }
  ]
}