{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biological+Samples&page=21",
    "query": {
      "intervention": "Biological Samples",
      "page": 21
    },
    "page_size": 10
  },
  "pagination": {
    "page": 21,
    "page_size": 10,
    "total_count": 541,
    "total_pages": 55,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biological+Samples&page=22&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biological+Samples&page=20&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-04T17:41:43.535Z",
  "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": "NCT03513952",
      "title": "Atezolizumab and CYT107 in Treating Participants With Locally Advanced, Inoperable, or Metastatic Urothelial Carcinoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Bladder Urothelial Carcinoma",
        "Advanced Ureter Urothelial Carcinoma",
        "Metastatic Bladder Urothelial Carcinoma",
        "Metastatic Renal Pelvis Urothelial Carcinoma",
        "Metastatic Ureter Urothelial Carcinoma",
        "Metastatic Urethral Urothelial Carcinoma",
        "Metastatic 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",
        "Stage IVA Bladder Cancer AJCC v8",
        "Stage IVB Bladder Cancer AJCC v8",
        "Unresectable Bladder Urothelial Carcinoma",
        "Unresectable Renal Pelvis Urothelial Carcinoma",
        "Unresectable Ureter Urothelial Carcinoma"
      ],
      "interventions": [
        {
          "name": "Atezolizumab",
          "type": "DRUG"
        },
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Glycosylated Recombinant Human Interleukin-7",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography and Computed Tomography Scan",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "BIOLOGICAL",
        "OTHER"
      ],
      "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": 47,
      "start_date": "2019-06-05",
      "completion_date": "2024-04-01",
      "has_results": true,
      "last_update_posted_date": "2024-07-26",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 9,
      "location_summary": "Riverside, California • Tampa, Florida • Honolulu, Hawaii + 5 more",
      "locations": [
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03513952"
    },
    {
      "nct_id": "NCT06252675",
      "title": "Glofitamab With Pirtobrutinib for Relapsed or Refractory Mantle Cell Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Mantle Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Obinutuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Glofitamab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pirtobrutinib",
          "type": "DRUG"
        },
        {
          "name": "Tumor Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "ClonoSeq Assay",
          "type": "DEVICE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2024-06-11",
      "completion_date": "2028-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-01",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 4,
      "location_summary": "Davis, California • Los Angeles, California • San Diego, California + 1 more",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06252675"
    },
    {
      "nct_id": "NCT05112601",
      "title": "Testing Nivolumab With or Without Ipilimumab in Deficient Mismatch Repair System (dMMR) Recurrent Endometrial Carcinoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Endometrial Adenocarcinoma",
        "Endometrial Clear Cell Adenocarcinoma",
        "Endometrial Dedifferentiated Carcinoma",
        "Endometrial Endometrioid Adenocarcinoma",
        "Endometrial Mixed Cell Adenocarcinoma",
        "Endometrial Mucinous Adenocarcinoma",
        "Endometrial Undifferentiated Carcinoma",
        "Endometrioid Adenocarcinoma",
        "Recurrent Endometrial Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 81,
      "start_date": "2022-06-02",
      "completion_date": "2032-07-30",
      "has_results": false,
      "last_update_posted_date": "2026-11-04",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 138,
      "location_summary": "Birmingham, Alabama • Athens, Georgia • Augusta, Georgia + 107 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Athens",
          "state": "Georgia"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05112601"
    },
    {
      "nct_id": "NCT07884474",
      "title": "Feasibility and Acceptability of Remote Saliva Collection",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Survivors of Childhood Cancer",
        "Acute Lymphoblastic Leukemia, Childhood"
      ],
      "interventions": [
        {
          "name": "Salivary Cortisol Collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood Biomarker Collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Hair Cortisol Collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Nail Cortisol Collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "WatchPAT Sleep Assessment",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Morning and Evening Diaries",
          "type": "BEHAVIORAL"
        },
        {
          "name": "MEMS Cap Adherence Monitoring",
          "type": "OTHER"
        },
        {
          "name": "OnTimePoint Application",
          "type": "OTHER"
        },
        {
          "name": "Survey and Questionnaire Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "8 Years to 18 Years"
      },
      "enrollment_count": 100,
      "start_date": "2026-12",
      "completion_date": "2029-10",
      "has_results": false,
      "last_update_posted_date": "2026-11-03",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07884474"
    },
    {
      "nct_id": "NCT03014518",
      "title": "Biomarkers as Predictors of Suicidal Risk in Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Suicide, Attempted",
        "Suicidal Ideation",
        "Suicidal Intention",
        "Suicide"
      ],
      "interventions": [
        {
          "name": "Clinical assessments and blood samples; follow-up for 12 mos",
          "type": "OTHER"
        },
        {
          "name": "Clinical assessments and blood samples; no 12mo follow-up",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "12 Years to 18 Years"
      },
      "enrollment_count": 80,
      "start_date": "2016-12",
      "completion_date": "2021-06-28",
      "has_results": false,
      "last_update_posted_date": "2021-07-16",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03014518"
    },
    {
      "nct_id": "NCT02224781",
      "title": "Dabrafenib and Trametinib Followed by Ipilimumab and Nivolumab or Ipilimumab and Nivolumab Followed by Dabrafenib and Trametinib in Treating Patients With Stage III-IV BRAFV600 Melanoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Clinical Stage III Cutaneous Melanoma AJCC v8",
        "Clinical Stage IV Cutaneous Melanoma AJCC v8",
        "Metastatic Melanoma",
        "Recurrent Melanoma",
        "Unresectable Melanoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Dabrafenib Mesylate",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Trametinib Dimethyl Sulfoxide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "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": 267,
      "start_date": "2015-09-08",
      "completion_date": "2026-12-19",
      "has_results": true,
      "last_update_posted_date": "2026-10-26",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 838,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 528 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02224781"
    },
    {
      "nct_id": "NCT03036930",
      "title": "Preventive Human Papillomavirus (HPV) Vaccine Trial in Kidney Transplant Recipients",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Human Papillomavirus Infection",
        "Human Papillomavirus-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "HPV Self-Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Recombinant Human Papillomavirus Nonavalent Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 51,
      "start_date": "2017-06-23",
      "completion_date": "2027-03-10",
      "has_results": true,
      "last_update_posted_date": "2026-09-14",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • San Francisco, California + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03036930"
    },
    {
      "nct_id": "NCT00977457",
      "title": "Genetic Testing in Predicting Biomarkers of Recurrence in Patients With Prostate Cancer Undergoing Surgery",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "DNA analysis",
          "type": "GENETIC"
        },
        {
          "name": "DNA methylation analysis",
          "type": "GENETIC"
        },
        {
          "name": "RNA analysis",
          "type": "GENETIC"
        },
        {
          "name": "gene expression analysis",
          "type": "GENETIC"
        },
        {
          "name": "polymerase chain reaction",
          "type": "GENETIC"
        },
        {
          "name": "diagnostic laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "therapeutic conventional surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "City of Hope Medical Center",
      "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": 1045,
      "start_date": "2007-11-26",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 1,
      "location_summary": "Duarte, California",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00977457"
    },
    {
      "nct_id": "NCT02970045",
      "title": "Norris ORIEN Total Cancer Care",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer Risk",
        "Malignant Neoplasm"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Evaluation of Cancer Risk Factors",
          "type": "PROCEDURE"
        },
        {
          "name": "Medical Chart Review",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "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": 10000,
      "start_date": "2016-05-02",
      "completion_date": "2037-05-02",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02970045"
    },
    {
      "nct_id": "NCT02997228",
      "title": "Testing the Addition of Atezolizumab to Combination Chemotherapy or Atezolizumab Alone for Metastatic Colon or Rectal Cancer, the COMMIT Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Metastatic Colorectal Adenocarcinoma",
        "Stage IV Colorectal Cancer AJCC v7"
      ],
      "interventions": [
        {
          "name": "Atezolizumab",
          "type": "DRUG"
        },
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "Leucovorin",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Oxaliplatin",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "PROCEDURE",
        "OTHER"
      ],
      "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": 120,
      "start_date": "2018-01-19",
      "completion_date": "2027-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-10-26",
      "last_synced_at": "2026-11-04T17:41:43.535Z",
      "location_count": 445,
      "location_summary": "Kingman, Arizona • Jonesboro, Arkansas • Anaheim, California + 346 more",
      "locations": [
        {
          "city": "Kingman",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Baldwin Park",
          "state": "California"
        },
        {
          "city": "Bellflower",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02997228"
    }
  ]
}