{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=biospecimen+Collection&page=20",
    "query": {
      "intervention": "biospecimen Collection",
      "page": 20
    },
    "page_size": 10
  },
  "pagination": {
    "page": 20,
    "page_size": 10,
    "total_count": 3528,
    "total_pages": 353,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=biospecimen+Collection&page=21&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=biospecimen+Collection&page=19&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-10T15:48:00.803Z",
  "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": "NCT01822977",
      "title": "The Impact of Proton Pump Inhibitors on the Fecal Microbiome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Clostridium Difficile Infection"
      ],
      "interventions": [
        {
          "name": "omeprazole",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2013-03",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2014-08-20",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01822977"
    },
    {
      "nct_id": "NCT06071377",
      "title": "Achieving Understanding of the Natural History of Sickle Cell Trait (AUNT)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sickle Cell Trait"
      ],
      "interventions": [
        {
          "name": "Biologic Specimen Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "National Alliance for Sickle Cell Centers",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2023-04-01",
      "completion_date": "2027-02",
      "has_results": false,
      "last_update_posted_date": "2026-10-07",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 8,
      "location_summary": "Birmingham, Alabama • Wilmington, Delaware • Indianapolis, Indiana + 5 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06071377"
    },
    {
      "nct_id": "NCT02118675",
      "title": "Tanita BIA System Validation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Body Composition",
        "Circumference Measurements",
        "Tissue Thickness Measurements"
      ],
      "interventions": [
        {
          "name": "Body Measurements",
          "type": "OTHER"
        },
        {
          "name": "Body Composition and Circumference measurements",
          "type": "OTHER"
        },
        {
          "name": "Whole Body DXA scan",
          "type": "OTHER"
        },
        {
          "name": "Bioelectrical Impedance Analysis (BIA)",
          "type": "OTHER"
        },
        {
          "name": "BodPod",
          "type": "OTHER"
        },
        {
          "name": "Circumferences",
          "type": "OTHER"
        },
        {
          "name": "Ultrasound",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Pennington Biomedical Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "5 Years to 80 Years"
      },
      "enrollment_count": 150,
      "start_date": "2014-01",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2017-05-05",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 1,
      "location_summary": "Baton Rouge, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02118675"
    },
    {
      "nct_id": "NCT07156227",
      "title": "Testing the Addition of an Anti-Cancer Drug, Camonsertib, to Radiation Therapy for Recurrent Head and Neck Squamous Cell Carcinoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Clinical Stage III HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8",
        "Recurrent Head and Neck Squamous Cell Carcinoma",
        "Recurrent Hypopharyngeal Squamous Cell Carcinoma",
        "Recurrent Laryngeal Squamous Cell Carcinoma",
        "Recurrent Oral Cavity Squamous Cell Carcinoma",
        "Recurrent Oropharyngeal Squamous Cell Carcinoma",
        "Recurrent Paranasal Sinus Squamous Cell Carcinoma",
        "Stage III Head and Neck Cutaneous Squamous Cell Carcinoma AJCC v8",
        "Stage III Hypopharyngeal Carcinoma AJCC v8",
        "Stage III Laryngeal Cancer AJCC v8",
        "Stage III Lip and Oral Cavity Cancer AJCC v8",
        "Stage III Oropharyngeal (p16-Negative) Carcinoma AJCC v8",
        "Stage III Sinonasal Cancer AJCC v8",
        "Stage IV Head and Neck Cutaneous Squamous Cell Carcinoma AJCC v8",
        "Stage IVA Hypopharyngeal Carcinoma AJCC v8",
        "Stage IVA Laryngeal Cancer AJCC v8",
        "Stage IVA Lip and Oral Cavity Cancer AJCC v8",
        "Stage IVA Oropharyngeal (p16-Negative) Carcinoma AJCC v8",
        "Stage IVA Sinonasal Cancer AJCC v8",
        "Stage IVB Hypopharyngeal Carcinoma AJCC v8",
        "Stage IVB Laryngeal Cancer AJCC v8",
        "Stage IVB Lip and Oral Cavity Cancer AJCC v8",
        "Stage IVB Oropharyngeal (p16-Negative) Carcinoma AJCC v8",
        "Stage IVB Sinonasal Cancer AJCC v8",
        "Unresectable Head and Neck Squamous Cell Carcinoma",
        "Unresectable Hypopharyngeal Squamous Cell Carcinoma",
        "Unresectable Laryngeal Squamous Cell Carcinoma",
        "Unresectable Oral Cavity Squamous Cell Carcinoma",
        "Unresectable Oropharyngeal Squamous Cell Carcinoma",
        "Unresectable Paranasal Sinus Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Camonsertib",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Stereotactic Body Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "RADIATION"
      ],
      "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": 39,
      "start_date": "2027-02-13",
      "completion_date": "2029-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-29",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 4,
      "location_summary": "Duarte, California • Irvine, California • Lexington, Kentucky + 1 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07156227"
    },
    {
      "nct_id": "NCT02421341",
      "title": "Mechanisms of Altered Ventilatory Control in Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Fentanyl",
          "type": "DRUG"
        },
        {
          "name": "Catheters",
          "type": "PROCEDURE"
        },
        {
          "name": "Exercise",
          "type": "OTHER"
        },
        {
          "name": "DEXA",
          "type": "RADIATION"
        },
        {
          "name": "Pulmonary Function Tests",
          "type": "OTHER"
        },
        {
          "name": "Blood Draw",
          "type": "OTHER"
        },
        {
          "name": "Chemosensitivity Test",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 28,
      "start_date": "2012-07",
      "completion_date": "2019-06-21",
      "has_results": false,
      "last_update_posted_date": "2021-12-16",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02421341"
    },
    {
      "nct_id": "NCT01750203",
      "title": "Swab Sample Collection for the Detection of Bacterial Proteases in Wounds Assay",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Wounds With Different Etiologies"
      ],
      "interventions": [
        {
          "name": "Swabs",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Systagenix Wound Management",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 135,
      "start_date": "2012-12",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2012-12-20",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 1,
      "location_summary": "Tulsa, Oklahoma",
      "locations": [
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01750203"
    },
    {
      "nct_id": "NCT02879695",
      "title": "Blinatumomab and Nivolumab With or Without Ipilimumab in Treating Patients With Poor-Risk Relapsed or Refractory CD19+ Precursor B-Lymphoblastic Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recurrent B Acute Lymphoblastic Leukemia",
        "Recurrent Mixed Phenotype Acute Leukemia",
        "Refractory B Acute Lymphoblastic Leukemia",
        "Refractory Mixed Phenotype Acute Leukemia"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Blinatumomab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bone Marrow Aspiration and Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 28,
      "start_date": "2017-10-25",
      "completion_date": "2027-07-18",
      "has_results": true,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 7,
      "location_summary": "New Haven, Connecticut • Lexington, Kentucky • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02879695"
    },
    {
      "nct_id": "NCT00001595",
      "title": "An Investigation of Pituitary Tumors and Related Hypothalmic Disorders",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Panhypopituitarism",
        "Gigantism/Acromegaly",
        "Prolactinoma",
        "Cushing Disease"
      ],
      "interventions": [
        {
          "name": "Tissue specimen collection",
          "type": "PROCEDURE"
        },
        {
          "name": "MRI",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "2 Years to 70 Years"
      },
      "enrollment_count": 2000,
      "start_date": "1997-04-21",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-10-19",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001595"
    },
    {
      "nct_id": "NCT06673095",
      "title": "Narrow Excision Versus Wide Excision for the Treatment of Adults With Invasive Cutaneous Melanoma, ICEMAN Trial",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Clinical Stage IA Cutaneous Melanoma AJCC v8",
        "Clinical Stage IB Cutaneous Melanoma AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Excision",
          "type": "PROCEDURE"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "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": 1000,
      "start_date": "2024-12-11",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-20",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 5,
      "location_summary": "Davis, California • Lexington, Kentucky • Ann Arbor, Michigan + 2 more",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06673095"
    },
    {
      "nct_id": "NCT01995175",
      "title": "A Prospective, Epidemiological Study to Assess the Disease Burden of Respiratory Syncytial Virus Associated, Suspected Lower Respiratory Tract Infections in Newborns, From 0 to 2 Years of Age and Risk of Development of Wheeze and Asthma From 0 to 6 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiratory Syncytial Virus"
      ],
      "interventions": [
        {
          "name": "Nasal swab sampling",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood sampling",
          "type": "PROCEDURE"
        },
        {
          "name": "Diary cards",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "Up to 6 Years"
      },
      "enrollment_count": 2409,
      "start_date": "2013-12-12",
      "completion_date": "2021-11-03",
      "has_results": true,
      "last_update_posted_date": "2022-11-29",
      "last_synced_at": "2026-11-10T15:48:00.803Z",
      "location_count": 9,
      "location_summary": "Oakland, California • Sacramento, California • Santa Clara, California + 5 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Santa Clara",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01995175"
    }
  ]
}