{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biospecimen+Collection&page=21",
    "query": {
      "intervention": "Biospecimen Collection",
      "page": 21
    },
    "page_size": 10
  },
  "pagination": {
    "page": 21,
    "page_size": 10,
    "total_count": 3512,
    "total_pages": 352,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biospecimen+Collection&page=22&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biospecimen+Collection&page=20&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T13:27:50.108Z",
  "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": "NCT07468929",
      "title": "Serum Inflammatory Protein Concentration During Dental Treatment",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Periodontal Disease",
        "Periodontal Surgery"
      ],
      "interventions": [
        {
          "name": "Blood samples for inflammatory markers",
          "type": "OTHER"
        },
        {
          "name": "periodontal surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Periodontal maintenance",
          "type": "PROCEDURE"
        },
        {
          "name": "Non-surgical deep cleaning",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 30,
      "start_date": "2026-07-13",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-09-11",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07468929"
    },
    {
      "nct_id": "NCT04234295",
      "title": "Investigating the Effect of Obesity on Eosinophil Recruitment in Human Adipose Tissue",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obese",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Fat Tissue Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "30 Years to 50 Years"
      },
      "enrollment_count": 24,
      "start_date": "2020-01-29",
      "completion_date": "2022-01-17",
      "has_results": false,
      "last_update_posted_date": "2022-01-19",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04234295"
    },
    {
      "nct_id": "NCT07040280",
      "title": "Sulforaphane for the Prevention of Melanoma in Patients With Multiple Atypical Nevi and a Prior History of Melanoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Clinical Stage 0 Cutaneous Melanoma AJCC v8",
        "Clinical Stage I Cutaneous Melanoma AJCC v8",
        "Clinical Stage II Cutaneous Melanoma AJCC v8",
        "Clinical Stage III Cutaneous Melanoma AJCC v8",
        "Cutaneous Dysplastic Nevus"
      ],
      "interventions": [
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Placebo Administration",
          "type": "DRUG"
        },
        {
          "name": "Sulforaphane",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "ECOG-ACRIN Cancer Research Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2026-02-20",
      "completion_date": "2033-03-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-15",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07040280"
    },
    {
      "nct_id": "NCT02717039",
      "title": "Pharmacogenomics of Heparin-Induced Thrombocytopenia",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heparin-induced Thrombocytopenia"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 125,
      "start_date": "2016-03",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2024-06-27",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02717039"
    },
    {
      "nct_id": "NCT04496739",
      "title": "Making Informed Choices on Incorporating Chemoprevention Into Care (MiCHOICE)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atypical Hyperplasia of the Breast",
        "Lobular Breast Carcinoma In Situ",
        "Pleomorphic Lobular Breast Carcinoma In Situ"
      ],
      "interventions": [
        {
          "name": "Cancer Educational Materials",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Decision Aid",
          "type": "OTHER"
        },
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 412,
      "start_date": "2020-10-23",
      "completion_date": "2028-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 96,
      "location_summary": "Antioch, California • Costa Mesa, California • Duarte, California + 67 more",
      "locations": [
        {
          "city": "Antioch",
          "state": "California"
        },
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04496739"
    },
    {
      "nct_id": "NCT06179303",
      "title": "Functional Imaging in Prediction of Response to Abemaciclib for Advanced Hormone Receptor-Positive, HER2-Negative Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anatomic Stage III Breast Cancer AJCC v8",
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Locally Advanced Unresectable HER2-Negative Breast Carcinoma",
        "Locally Advanced Unresectable Hormone Receptor-Positive Breast Carcinoma",
        "Metastatic HER2-Negative Breast Carcinoma",
        "Metastatic Hormone Receptor-Positive Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Abemaciclib",
          "type": "DRUG"
        },
        {
          "name": "Anastrozole",
          "type": "DRUG"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Diagnostic Imaging Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Exemestane",
          "type": "DRUG"
        },
        {
          "name": "Fludeoxyglucose F-18",
          "type": "OTHER"
        },
        {
          "name": "Fluorine F 18 Fluoro Furanyl Norprogesterone",
          "type": "DRUG"
        },
        {
          "name": "Fulvestrant",
          "type": "DRUG"
        },
        {
          "name": "Gonadotropin-releasing Hormone Analog",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Letrozole",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Tamoxifen",
          "type": "DRUG"
        },
        {
          "name": "Therapeutic Estradiol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2024-07-22",
      "completion_date": "2028-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-24",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 3,
      "location_summary": "St Louis, Missouri • Chapel Hill, North Carolina • Seattle, Washington",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06179303"
    },
    {
      "nct_id": "NCT00995527",
      "title": "Characterization of the Innate Immune Response in Healthy NIH Employees at Baseline and After Immunization With the H1N1 Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2009-09-30",
      "completion_date": "2014-06-25",
      "has_results": false,
      "last_update_posted_date": "2017-10-06",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00995527"
    },
    {
      "nct_id": "NCT06338657",
      "title": "FID-007 Followed by Standard of Care Surgery in Head and Neck Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Head and Neck Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "PEOX-based Polymer Encapsulated Paclitaxel FID-007",
          "type": "DRUG"
        },
        {
          "name": "Tumor Resection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "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": "2024-04-01",
      "completion_date": "2025-09-09",
      "has_results": false,
      "last_update_posted_date": "2025-09-16",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06338657"
    },
    {
      "nct_id": "NCT05063201",
      "title": "Cariprazine for Comorbid Cocaine and Opioid Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid-use Disorder",
        "Cocaine Use Disorder"
      ],
      "interventions": [
        {
          "name": "Cariprazine 1.5 MG",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kyle Kampman",
      "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": 26,
      "start_date": "2022-08-05",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05063201"
    },
    {
      "nct_id": "NCT02651883",
      "title": "Effect of Human Papillomavirus Self-Collection on Cervical Cancer Screening in High Risk Women: My Body, My Test 3",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cervical Cancer",
        "Uterine Cervical Neoplasms",
        "Human Papillomavirus"
      ],
      "interventions": [
        {
          "name": "Screening invitation (with education)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Self-collection for HPV testing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "UNC Lineberger Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "64 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 64 Years · Female only"
      },
      "enrollment_count": 665,
      "start_date": "2016-04",
      "completion_date": "2020-04-10",
      "has_results": false,
      "last_update_posted_date": "2022-12-02",
      "last_synced_at": "2026-10-17T13:27:50.108Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02651883"
    }
  ]
}