{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample+collection+for+biomarkers",
    "query": {
      "intervention": "Blood sample collection for biomarkers"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 437,
    "total_pages": 44,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample+collection+for+biomarkers&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T04:55:35.042Z",
  "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": "NCT02392429",
      "title": "FLT PET/CT in Measuring Response in Patients With Previously Untreated Acute Myeloid Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Myeloid Leukemia"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Fluorothymidine F-18",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "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": 87,
      "start_date": "2016-04-20",
      "completion_date": "2027-02-13",
      "has_results": true,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 11,
      "location_summary": "Rochester, Minnesota • St Louis, Missouri • New York, New York + 7 more",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02392429"
    },
    {
      "nct_id": "NCT01988285",
      "title": "Risk Factors and Biomarkers for Diagnosis and Treatment of EoE",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Eosinophilic Esophagitis"
      ],
      "interventions": [
        {
          "name": "Specimen Collection",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 800,
      "start_date": "2011-07-28",
      "completion_date": "2024-07-17",
      "has_results": false,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01988285"
    },
    {
      "nct_id": "NCT02759887",
      "title": "Relationship Between Down Syndrome (DS) and Alzheimer's Disease (AD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Down Syndrome",
        "Alzheimer's Dementia"
      ],
      "interventions": [
        {
          "name": "biospecimen collection",
          "type": "PROCEDURE"
        },
        {
          "name": "cognitive assessments",
          "type": "OTHER"
        },
        {
          "name": "caregiver questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Florbetapir F18 imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "MRI",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludeoxyglucose F18 (FDG)",
          "type": "PROCEDURE"
        },
        {
          "name": "Tau Pet",
          "type": "PROCEDURE"
        },
        {
          "name": "Actigraphy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "St. Joseph's Hospital and Medical Center, Phoenix",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 19,
      "start_date": "2016-11",
      "completion_date": "2018-12",
      "has_results": false,
      "last_update_posted_date": "2019-10-29",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02759887"
    },
    {
      "nct_id": "NCT02457663",
      "title": "Identification and Validation of Biomarkers for Infections in Burns",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Burns Involving 20% or More of Body Surface"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "The University of Texas Medical Branch, Galveston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 19,
      "start_date": "2015-04",
      "completion_date": "2019-07-11",
      "has_results": false,
      "last_update_posted_date": "2019-09-24",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 3,
      "location_summary": "Dallas, Texas • Fort Sam Houston, Texas • Houston, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Fort Sam Houston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02457663"
    },
    {
      "nct_id": "NCT02094872",
      "title": "Molecularly Targeted Therapy in Treating Patients With BRAF Wild-type Melanoma That is Metastatic",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Melanoma",
        "Stage IIIA Melanoma",
        "Stage IIIB Melanoma",
        "Stage IIIC Melanoma",
        "Stage IV Melanoma"
      ],
      "interventions": [
        {
          "name": "cytology specimen collection procedure",
          "type": "OTHER"
        },
        {
          "name": "MEK 162 therapy or molecularly targeted therapy",
          "type": "DRUG"
        },
        {
          "name": "therapeutic procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "quality-of-life assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 49,
      "start_date": "2014-05",
      "completion_date": "2018-12",
      "has_results": true,
      "last_update_posted_date": "2020-01-02",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 8,
      "location_summary": "Scottsdale, Arizona • New Haven, Connecticut • Jacksonville, Florida + 5 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02094872"
    },
    {
      "nct_id": "NCT02382601",
      "title": "Longitudinal Study of Intra-Uterine Growth Restriction",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "IUGR",
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Ultrasound",
          "type": "RADIATION"
        },
        {
          "name": "MRI",
          "type": "RADIATION"
        },
        {
          "name": "Blood collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Neurological Function Assessment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Placental Analysis",
          "type": "PROCEDURE"
        },
        {
          "name": "Measurement of body fat",
          "type": "PROCEDURE"
        },
        {
          "name": "Pediatric heart ultrasound",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 200,
      "start_date": "2015-04",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-11",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02382601"
    },
    {
      "nct_id": "NCT01032278",
      "title": "Effectiveness of Using Biomarkers to Detect and Identify Cardiotoxicity and Describe Treatment (PREDICT)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiac Toxicity",
        "Unspecified Adult Solid Tumor, Protocol Specific"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson 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": 597,
      "start_date": "2011-01-25",
      "completion_date": "2021-01",
      "has_results": false,
      "last_update_posted_date": "2019-05-21",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 2,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01032278"
    },
    {
      "nct_id": "NCT02132858",
      "title": "Genetic Mutations in Blood and Tissue Samples in Predicting Response to Treatment in Patients With Locally Advanced Rectal Cancer Undergoing Chemoradiation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mucinous Adenocarcinoma of the Rectum",
        "Recurrent Rectal Cancer",
        "Signet Ring Adenocarcinoma of the Rectum",
        "Stage IIA Rectal Cancer",
        "Stage IIB Rectal Cancer",
        "Stage IIC Rectal Cancer",
        "Stage IIIA Rectal Cancer",
        "Stage IIIB Rectal Cancer",
        "Stage IIIC Rectal Cancer"
      ],
      "interventions": [
        {
          "name": "cytology specimen collection procedure",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Fox Chase 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": 43,
      "start_date": "2014-07",
      "completion_date": "2022-10",
      "has_results": false,
      "last_update_posted_date": "2024-05-02",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02132858"
    },
    {
      "nct_id": "NCT01050504",
      "title": "Collecting and Studying Blood and Tissue Samples From Patients With Locally Recurrent or Metastatic Prostate or Bladder/Urothelial Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Localized Renal Pelvis and Ureter Urothelial Carcinoma",
        "Malignant Solid Neoplasm",
        "Metastatic Malignant Neoplasm in the Bone",
        "Metastatic Malignant Neoplasm in the Soft Tissues",
        "Metastatic Renal Pelvis and Ureter Urothelial Carcinoma",
        "Recurrent Bladder Carcinoma",
        "Recurrent Prostate Carcinoma",
        "Recurrent Renal Pelvis and Ureter Urothelial Carcinoma",
        "Stage IV Bladder Cancer AJCC v7",
        "Stage IV Bladder Urothelial Carcinoma AJCC v7",
        "Stage IV Prostate Cancer AJCC v7"
      ],
      "interventions": [
        {
          "name": "Cytology Specimen Collection Procedure",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 1500,
      "start_date": "2009-08",
      "completion_date": "2029-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-06",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01050504"
    },
    {
      "nct_id": "NCT07186309",
      "title": "A Study of a Test for Postpartum Depression at Home",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Postpartum Depression (PPD)",
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Diagnostic Test: Enlighten",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Virginia",
      "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": 1000,
      "start_date": "2025-11-20",
      "completion_date": "2030-08",
      "has_results": false,
      "last_update_posted_date": "2025-11-28",
      "last_synced_at": "2026-09-29T04:55:35.042Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07186309"
    }
  ]
}