{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sample+collection&page=4",
    "query": {
      "intervention": "sample collection",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 3663,
    "total_pages": 367,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sample+collection&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=sample+collection&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-21T21:04:41.509Z",
  "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": "NCT07407647",
      "title": "Vaginal DHEA to Improve Vaginal Health After Radiation for Women With Gynecologic, Anal or Rectal Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anal Carcinoma",
        "Cervical Carcinoma",
        "Malignant Female Reproductive System Neoplasm",
        "Rectal Carcinoma",
        "Vaginal Carcinoma",
        "Vulvar Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Prasterone",
          "type": "DRUG"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "50 Years and older · Female only"
      },
      "enrollment_count": 25,
      "start_date": "2026-03-12",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-21",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07407647"
    },
    {
      "nct_id": "NCT07166406",
      "title": "Testing Immunotherapy With or Without Stereotactic Body Radiation Therapy in Patients With Advanced Liver Cancer, HELIO-RT Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Advanced Hepatocellular Carcinoma",
        "Stage III Hepatocellular Carcinoma AJCC v8",
        "Stage IV Hepatocellular Carcinoma AJCC v8"
      ],
      "interventions": [
        {
          "name": "Atezolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Durvalumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Stereotactic Body Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Tremelimumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "PROCEDURE",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "NRG Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 226,
      "start_date": "2026-02-26",
      "completion_date": "2034-03-10",
      "has_results": false,
      "last_update_posted_date": "2026-08-17",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 138,
      "location_summary": "Berkeley, California • Cameron Park, California • Fremont, California + 108 more",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Cameron Park",
          "state": "California"
        },
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Mountain View",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07166406"
    },
    {
      "nct_id": "NCT04197934",
      "title": "WSD0922-FU for Treatment of Glioblastoma, Anaplastic Astrocytoma, or Non-small Cell Lung Cancer With Central Nervous System Metastases",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Anaplastic Astrocytoma, IDH-Wildtype",
        "Glioblastoma, IDH-Wildtype",
        "Metastatic Lung Non-Small Cell Carcinoma",
        "Metastatic Malignant Neoplasm in the Central Nervous System",
        "Stage IV Lung Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection - blood samples",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection - CSF samples",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "EGFR/EGFRvIII Inhibitor WSD0922-FU",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Therapeutic Conventional Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2019-12-20",
      "completion_date": "2031-02-06",
      "has_results": false,
      "last_update_posted_date": "2026-08-10",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 3,
      "location_summary": "Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04197934"
    },
    {
      "nct_id": "NCT04586452",
      "title": "NIH CCR2 AAA Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Abdominal Aortic Aneurysm (AAA)",
        "No Abdominal Aortic Aneurysm (Non-AAA)"
      ],
      "interventions": [
        {
          "name": "AAA Group (Aim 3A)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Non-AAA Group",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Ex Vivo Human AAA Specimens (Aim 2A)",
          "type": "OTHER"
        },
        {
          "name": "Relationship between radiotracer and CCR2 (Aim 2B)",
          "type": "OTHER"
        },
        {
          "name": "AAA Group (Aim 3B-Reproducibility)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2021-02-17",
      "completion_date": "2022-04-04",
      "has_results": false,
      "last_update_posted_date": "2025-07-15",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04586452"
    },
    {
      "nct_id": "NCT02530658",
      "title": "Next Generation Sequencing of Normal Tissues Prospectively in Pediatric Oncology Patients",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Solid, Liquid, Central Nervous System Tumors"
      ],
      "interventions": [
        {
          "name": "Study Introduction Visit",
          "type": "OTHER"
        },
        {
          "name": "Informed Consent Visit",
          "type": "OTHER"
        },
        {
          "name": "Informed Consent Follow-Up Visit",
          "type": "OTHER"
        },
        {
          "name": "Return of Results Conversation",
          "type": "OTHER"
        },
        {
          "name": "Return of Results Follow-Up Visits",
          "type": "OTHER"
        },
        {
          "name": "Blood Sample",
          "type": "PROCEDURE"
        },
        {
          "name": "Skin Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 2500,
      "start_date": "2015-08-28",
      "completion_date": "2053-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-22",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02530658"
    },
    {
      "nct_id": "NCT03817398",
      "title": "Stopping Tyrosine Kinase Inhibitors in Affecting Treatment-Free Remission in Patients With Chronic Phase Chronic Myeloid Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Phase Chronic Myeloid Leukemia, BCR-ABL1 Positive"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Drug Withdrawn",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Tyrosine Kinase Inhibitor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "Up to 25 Years"
      },
      "enrollment_count": 110,
      "start_date": "2019-11-08",
      "completion_date": "2026-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-16",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 157,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Mesa, Arizona + 123 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03817398"
    },
    {
      "nct_id": "NCT04340843",
      "title": "Testing the Combination of Belinostat and SGI-110 (Guadecitabine) or ASTX727 for the Treatment of Unresectable and Metastatic Conventional Chondrosarcoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Locally Advanced Unresectable Primary Central Chondrosarcoma",
        "Metastatic Primary Central Chondrosarcoma",
        "Unresectable Primary Central Chondrosarcoma"
      ],
      "interventions": [
        {
          "name": "Belinostat",
          "type": "DRUG"
        },
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Decitabine and Cedazuridine",
          "type": "DRUG"
        },
        {
          "name": "Guadecitabine",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "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": 19,
      "start_date": "2020-09-08",
      "completion_date": "2027-01-27",
      "has_results": true,
      "last_update_posted_date": "2026-09-08",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 39,
      "location_summary": "Phoenix, Arizona • Duarte, California • Los Angeles, California + 32 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04340843"
    },
    {
      "nct_id": "NCT06249191",
      "title": "Mosunetuzumab With Chemotherapy for the Treatment of Patients With Untreated C-Myc Rearrangement Positive High Grade B Cell Lymphoma or Diffuse Large B Cell Lymphoma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Diffuse Large B-Cell Lymphoma",
        "High Grade B-Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration and Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Echocardiography",
          "type": "PROCEDURE"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Mosunetuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Vincristine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "OHSU Knight Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-06-13",
      "completion_date": "2027-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-07",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06249191"
    },
    {
      "nct_id": "NCT04298697",
      "title": "Biomarkers for Event-driven PrEP Adherence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Human Immunodeficiency Virus"
      ],
      "interventions": [
        {
          "name": "Tenofovir disoproxil fumarate/emtricitabine (TDF/FTC)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "MALE",
        "summary": "18 Years to 59 Years · Male only"
      },
      "enrollment_count": 43,
      "start_date": "2020-02-28",
      "completion_date": "2022-08-09",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04298697"
    },
    {
      "nct_id": "NCT06595160",
      "title": "Determining the Link Between Dietary Patterns, Fecal Microbiome and Response to Neoadjuvant Chemotherapy",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Borderline Resectable Pancreatic Ductal Adenocarcinoma",
        "Resectable Pancreatic Ductal Adenocarcinoma",
        "Stage I Pancreatic Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "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": 87,
      "start_date": "2024-08-05",
      "completion_date": "2027-08-07",
      "has_results": false,
      "last_update_posted_date": "2025-08-01",
      "last_synced_at": "2026-10-21T21:04:41.509Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06595160"
    }
  ]
}