{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Bio-Specimen+Collection&page=21",
    "query": {
      "intervention": "Bio-Specimen Collection",
      "page": 21
    },
    "page_size": 10
  },
  "pagination": {
    "page": 21,
    "page_size": 10,
    "total_count": 2325,
    "total_pages": 233,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Bio-Specimen+Collection&page=22&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Bio-Specimen+Collection&page=20&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-07T20:34:03.634Z",
  "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": "NCT05079399",
      "title": "Biomarker of Diabetic Retinopathy",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetic Retinopathy"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 192,
      "start_date": "2022-01-01",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-23",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 3,
      "location_summary": "Carmel, Indiana • Indianapolis, Indiana",
      "locations": [
        {
          "city": "Carmel",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05079399"
    },
    {
      "nct_id": "NCT02370355",
      "title": "Molecular Characterization of CTCs and ctDNA in Blood and Plasma Samples From Patients With Metastatic and/or Hormone-Resistant Prostate Cancer",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hormone-Resistant Prostate Cancer",
        "Metastatic Prostate Carcinoma"
      ],
      "interventions": [
        {
          "name": "Cytology Specimen Collection Procedure",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "19 Years and older · Male only"
      },
      "enrollment_count": 24,
      "start_date": "2014-12-23",
      "completion_date": "2016-06-08",
      "has_results": false,
      "last_update_posted_date": "2017-04-17",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02370355"
    },
    {
      "nct_id": "NCT00418015",
      "title": "Mu-Opioid Receptor Genetic Polymorphism and Intrathecal Analgesia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Labor Pain",
        "Post-cesarean Delivery"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 293,
      "start_date": "2005-10",
      "completion_date": "2007-06",
      "has_results": true,
      "last_update_posted_date": "2014-04-14",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00418015"
    },
    {
      "nct_id": "NCT07227740",
      "title": "Testosterone Deficiency and Endothelial Dysfunction After Spinal Cord Injury",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Spinal Cord Injuries",
        "Endothelial Dysfunction",
        "Testosterone Deficiency"
      ],
      "interventions": [
        {
          "name": "Intra-arterial Infusion of Vasoactive Agents",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Intra-arterial Vitamin C Infusion",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood Sampling",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Craig Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "MALE",
        "summary": "18 Years to 89 Years · Male only"
      },
      "enrollment_count": 48,
      "start_date": "2025-07-15",
      "completion_date": "2028-07-14",
      "has_results": false,
      "last_update_posted_date": "2025-11-21",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 1,
      "location_summary": "Englewood, Colorado",
      "locations": [
        {
          "city": "Englewood",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07227740"
    },
    {
      "nct_id": "NCT07826949",
      "title": "A Study of SRN-101 Administered Prior to Surgical Resection in Adults With Recurrent High-Grade Glioma.",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recurrent High-Grade Gliomas",
        "Brain Neoplasm",
        "Glioma"
      ],
      "interventions": [
        {
          "name": "SRN-101",
          "type": "DRUG"
        },
        {
          "name": "Blood Specimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Surgical Resection",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging (MRI)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Nicholas Butowski",
      "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": "2026-11-15",
      "completion_date": "2032-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-27",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07826949"
    },
    {
      "nct_id": "NCT05564650",
      "title": "Navitoclax in Relapsed or Refractory High-Risk Myelodysplastic Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Myelodysplastic Syndrome",
        "Recurrent Myelodysplastic Syndrome",
        "Refractory Myelodysplastic Syndrome"
      ],
      "interventions": [
        {
          "name": "Navitoclax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        },
        {
          "name": "Decitabine",
          "type": "DRUG"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Thomas Jefferson University",
      "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": "2023-01-12",
      "completion_date": "2026-05-08",
      "has_results": false,
      "last_update_posted_date": "2026-05-19",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05564650"
    },
    {
      "nct_id": "NCT04684368",
      "title": "A Study of a New Way to Treat Children and Young Adults With a Brain Tumor Called NGGCT",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Central Nervous System Nongerminomatous Germ Cell Tumor",
        "Choriocarcinoma",
        "Embryonal Carcinoma",
        "Immature Teratoma",
        "Malignant Teratoma",
        "Mixed Germ Cell Tumor",
        "Pineal Region Germ Cell Tumor",
        "Pineal Region Immature Teratoma",
        "Pineal Region Yolk Sac Tumor",
        "Suprasellar Germ Cell Tumor"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ifosfamide",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Mesna",
          "type": "DRUG"
        },
        {
          "name": "Pegfilgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Peripheral Blood Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Second-Look Surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Thiotepa",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "3 Years to 29 Years"
      },
      "enrollment_count": 160,
      "start_date": "2021-07-13",
      "completion_date": "2029-12-21",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 152,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 120 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04684368"
    },
    {
      "nct_id": "NCT04306523",
      "title": "Early Genetic and Environmental Influences on Eating - The Baylor Infant Twins Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Body Composition",
        "Executive Functioning",
        "Temperament"
      ],
      "interventions": [
        {
          "name": "Observation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Months",
        "maximum_age": "24 Months",
        "sex": "ALL",
        "summary": "4 Months to 24 Months"
      },
      "enrollment_count": 125,
      "start_date": "2015-10",
      "completion_date": "2024-07",
      "has_results": false,
      "last_update_posted_date": "2024-07-29",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04306523"
    },
    {
      "nct_id": "NCT06492759",
      "title": "High Dose Radiation Therapy With Pembrolizumab and Chemotherapy for the Treatment of Patients With PD-L1 Positive Metastatic Triple Negative Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Metastatic Triple-Negative Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Nab-paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Medical Chart Review",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 29,
      "start_date": "2025-10-22",
      "completion_date": "2028-02-13",
      "has_results": false,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06492759"
    },
    {
      "nct_id": "NCT07532525",
      "title": "Pomalidomide After CAR T-cell Therapy for the Treatment of Relapsed or Refractory CD19+ B-cell Leukemia or Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Recurrent B Acute Lymphoblastic Leukemia",
        "Recurrent B-Cell Non-Hodgkin Lymphoma",
        "Refractory B Acute Lymphoblastic Leukemia",
        "Refractory B-Cell Non-Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Pomalidomide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "University of Michigan Rogel 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": 12,
      "start_date": "2026-08-26",
      "completion_date": "2028-08",
      "has_results": false,
      "last_update_posted_date": "2026-10-15",
      "last_synced_at": "2026-11-07T20:34:03.634Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07532525"
    }
  ]
}