{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biological+Sample+Collection&page=23",
    "query": {
      "intervention": "Biological Sample Collection",
      "page": 23
    },
    "page_size": 10
  },
  "pagination": {
    "page": 23,
    "page_size": 10,
    "total_count": 2432,
    "total_pages": 244,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biological+Sample+Collection&page=24&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biological+Sample+Collection&page=22&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-18T20:05:53.919Z",
  "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": "NCT04293562",
      "title": "A Study to Compare Standard Chemotherapy to Therapy With CPX-351 and/or Gilteritinib for Patients With Newly Diagnosed AML With or Without FLT3 Mutations",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acute Myeloid Leukemia"
      ],
      "interventions": [
        {
          "name": "Allogeneic Hematopoietic Stem Cell Transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "Asparaginase Erwinia chrysanthemi",
          "type": "DRUG"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Daunorubicin Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Dexrazoxane Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Fludeoxyglucose F-18",
          "type": "OTHER"
        },
        {
          "name": "Gemtuzumab Ozogamicin",
          "type": "DRUG"
        },
        {
          "name": "Gilteritinib Fumarate",
          "type": "DRUG"
        },
        {
          "name": "Liposome-encapsulated Daunorubicin-Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "Mitoxantrone Hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Therapeutic Hydrocortisone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "6 Months to 21 Years"
      },
      "enrollment_count": 1400,
      "start_date": "2020-07-21",
      "completion_date": "2029-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-17",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 186,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Mesa, Arizona + 143 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04293562"
    },
    {
      "nct_id": "NCT01470105",
      "title": "Improving a Bayesian Model's Survival Estimates in Patients Needing Surgery for Bone Metastases",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bone Metastases"
      ],
      "interventions": [
        {
          "name": "blood sampling, the SF-36 questionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "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": 230,
      "start_date": "2011-11",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 2,
      "location_summary": "New York, New York • The Bronx, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01470105"
    },
    {
      "nct_id": "NCT07524530",
      "title": "Stem Cell Transplantation for Participants With Germline RUNX1 Associated Blood Cancers",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Core Binding Factor Alpha Subunits",
        "Hematologic Neoplasms",
        "Leukemia",
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Busulfan",
          "type": "DRUG"
        },
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Total Body Irradiation",
          "type": "RADIATION"
        },
        {
          "name": "Hematopoietic stem cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tacrolimus",
          "type": "DRUG"
        },
        {
          "name": "Mycophenolate Mofetil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "4 Years to 70 Years"
      },
      "enrollment_count": 102,
      "start_date": "2026-10-21",
      "completion_date": "2036-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-16",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07524530"
    },
    {
      "nct_id": "NCT06151730",
      "title": "Evaluation of Hypertension Management and Cardiovascular Adverse Event Prevention in Patients With B-cell Malignancies Undergoing Treatment With Bruton Tyrosine Kinase Inhibitors, the HALT Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Lymphocytic Leukemia",
        "Hematopoietic and Lymphoid System Neoplasm",
        "Mantle Cell Lymphoma",
        "Marginal Zone Lymphoma",
        "Waldenstrom Macroglobulinemia"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 100,
      "start_date": "2024-01-05",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06151730"
    },
    {
      "nct_id": "NCT02530177",
      "title": "Study of Chemotherapy-Induced Hair Changes and Alopecia, Skin Aging and Nail Changes in Women With Non-Metastatic Breast Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-Metastatic Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Clinical Assessments",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Saliva sample",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 546,
      "start_date": "2015-08-19",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2025-12-04",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02530177"
    },
    {
      "nct_id": "NCT06068894",
      "title": "Safety, Tolerability, and Biosignature of Humanized Prebiotics in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Intestinal Health"
      ],
      "interventions": [
        {
          "name": "\"Humanized\" galacto-oligosaccharides (hGOS)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Galacto-oligosaccharides (GOS)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Matching Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 60,
      "start_date": "2024-06-13",
      "completion_date": "2025-03-26",
      "has_results": true,
      "last_update_posted_date": "2026-02-05",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06068894"
    },
    {
      "nct_id": "NCT07278856",
      "title": "Ruxolitinib in Combination With CHOP Chemotherapy for the Treatment of Untreated Nodal T-Follicular Helper Cell Lymphomas",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Follicular Helper T-Cell Lymphoma",
        "Follicular Helper T-Cell Lymphoma, Angioimmunoblastic-Type",
        "Follicular Helper T-Cell Lymphoma, Follicular-Type",
        "Follicular Helper T-Cell Lymphoma, Not Otherwise Specified",
        "Mature T-Cell and NK-Cell Non-Hodgkin Lymphoma",
        "Peripheral T-Cell Lymphoma, Not Otherwise Specified"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "FDG-Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Filgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fludeoxyglucose F-18",
          "type": "OTHER"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Pegfilgrastim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Ruxolitinib Phosphate",
          "type": "DRUG"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "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": 20,
      "start_date": "2025-12-16",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07278856"
    },
    {
      "nct_id": "NCT05733351",
      "title": "Vudalimab (XmAb20717) in Combination With Standard of Care Treatment in Patients With Metastatic Castration Sensitive Prostate Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Castration-Sensitive Prostate Carcinoma",
        "Metastatic Prostate Adenocarcinoma",
        "Stage IVB Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Abiraterone",
          "type": "DRUG"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Docetaxel",
          "type": "DRUG"
        },
        {
          "name": "Enzalutamide",
          "type": "DRUG"
        },
        {
          "name": "FDG-Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "PSMA PET Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Vudalimab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 4,
      "start_date": "2023-08-03",
      "completion_date": "2025-06-12",
      "has_results": false,
      "last_update_posted_date": "2025-09-15",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05733351"
    },
    {
      "nct_id": "NCT03868202",
      "title": "Follicle Stimulating Hormone (FSH) Glycosylation in Women: Effect of Estradiol",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Follicle Stimulating Hormone Glycosylation",
        "Urinary FSH21/FSH24 Ratio",
        "Estradiol Effect"
      ],
      "interventions": [
        {
          "name": "Estradiol Transdermal Product",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eastern Virginia Medical School",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "20 Years to 55 Years · Female only"
      },
      "enrollment_count": 10,
      "start_date": "2019-07-03",
      "completion_date": "2020-01",
      "has_results": false,
      "last_update_posted_date": "2019-07-12",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03868202"
    },
    {
      "nct_id": "NCT06900595",
      "title": "Testing the Addition of an Anti-Cancer Drug, Cabozantinib to the Immunotherapy Drug Cemiplimab (REGN2810), in Adolescents and Adults With Advanced Adrenocortical Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Locally Advanced Adrenal Cortical Carcinoma",
        "Metastatic Adrenal Cortical Carcinoma",
        "Recurrent Adrenal Cortical Carcinoma",
        "Stage III Adrenal Cortical Carcinoma AJCC v8",
        "Stage IV Adrenal Cortical Carcinoma AJCC v8",
        "Unresectable Adrenal Cortical Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Cabozantinib",
          "type": "DRUG"
        },
        {
          "name": "Cemiplimab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 48,
      "start_date": "2026-02-22",
      "completion_date": "2029-06-02",
      "has_results": false,
      "last_update_posted_date": "2026-09-18",
      "last_synced_at": "2026-10-18T20:05:53.919Z",
      "location_count": 81,
      "location_summary": "Phoenix, Arizona • La Jolla, California • Madera, California + 60 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Madera",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06900595"
    }
  ]
}