{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+Testing&page=25",
    "query": {
      "intervention": "Biomarker Testing",
      "page": 25
    },
    "page_size": 10
  },
  "pagination": {
    "page": 25,
    "page_size": 10,
    "total_count": 808,
    "total_pages": 81,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+Testing&page=26&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+Testing&page=24&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-23T09:53:29.336Z",
  "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": "NCT01517971",
      "title": "Studying Tumor Tissue Samples From Patients With Early-Stage Non-Small Cell Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1060,
      "start_date": "2012-01",
      "completion_date": "2019-02-27",
      "has_results": false,
      "last_update_posted_date": "2021-08-17",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01517971"
    },
    {
      "nct_id": "NCT02140021",
      "title": "Biospecimen Collection and Testing for the Prevalence of Anal Dysplasia and Anal Cancer in Patients With Cervical, Vaginal and Vulvar Dysplasia and Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cervical Adenocarcinoma",
        "Cervical Adenocarcinoma In Situ",
        "Cervical Intraepithelial Neoplasia",
        "Cervical Squamous Cell Carcinoma, Not Otherwise Specified",
        "Cervical Squamous Intraepithelial Neoplasia",
        "Early Invasive Cervical Adenocarcinoma",
        "Early Invasive Cervical Squamous Cell Carcinoma",
        "High Grade Cervical Squamous Intraepithelial Neoplasia",
        "High Grade Vaginal Intraepithelial Neoplasia",
        "Low Grade Vaginal Intraepithelial Neoplasia",
        "Stage I Cervical Cancer AJCC v8",
        "Stage I Vaginal Cancer AJCC v8",
        "Stage I Vulvar Cancer AJCC v8",
        "Stage IA Cervical Cancer AJCC v8",
        "Stage IA Vaginal Cancer AJCC v8",
        "Stage IA Vulvar Cancer AJCC v8",
        "Stage IA1 Cervical Cancer AJCC v8",
        "Stage IA2 Cervical Cancer AJCC v8",
        "Stage IB Cervical Cancer AJCC v8",
        "Stage IB Vaginal Cancer AJCC v8",
        "Stage IB Vulvar Cancer AJCC v8",
        "Stage IB1 Cervical Cancer AJCC v8",
        "Stage IB2 Cervical Cancer AJCC v8",
        "Stage II Cervical Cancer AJCC v8",
        "Stage II Vaginal Cancer AJCC v8",
        "Stage II Vulvar Cancer AJCC v8",
        "Stage IIA Cervical Cancer AJCC v8",
        "Stage IIA Vaginal Cancer AJCC v8",
        "Stage IIA1 Cervical Cancer AJCC v8",
        "Stage IIA2 Cervical Cancer AJCC v8",
        "Stage IIB Cervical Cancer AJCC v8",
        "Stage IIB Vaginal Cancer AJCC v8",
        "Stage III Cervical Cancer AJCC v8",
        "Stage III Vaginal Cancer AJCC v8",
        "Stage III Vulvar Cancer AJCC v8",
        "Stage IIIA Cervical Cancer AJCC v8",
        "Stage IIIA Vulvar Cancer AJCC v8",
        "Stage IIIB Cervical Cancer AJCC v8",
        "Stage IIIB Vulvar Cancer AJCC v8",
        "Stage IIIC Vulvar Cancer AJCC v8",
        "Stage IV Cervical Cancer AJCC v8",
        "Stage IV Vaginal Cancer AJCC v8",
        "Stage IV Vulvar Cancer AJCC v8",
        "Stage IVA Cervical Cancer AJCC v8",
        "Stage IVA Vaginal Cancer AJCC v8",
        "Stage IVA Vulvar Cancer AJCC v8",
        "Stage IVB Cervical Cancer AJCC v8",
        "Stage IVB Vaginal Cancer AJCC v8",
        "Stage IVB Vulvar Cancer AJCC v8",
        "Vaginal Adenocarcinoma",
        "Vulvar Adenocarcinoma",
        "Vulvar High Grade Squamous Intraepithelial Lesion",
        "Vulvar Intraepithelial Neoplasia",
        "Vulvar Squamous Cell Carcinoma",
        "Vulvar Squamous Intraepithelial Lesion"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 409,
      "start_date": "2014-10-27",
      "completion_date": "2025-07-08",
      "has_results": false,
      "last_update_posted_date": "2025-07-14",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 2,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02140021"
    },
    {
      "nct_id": "NCT04566562",
      "title": "Blood Brain Barrier Dysfunction and Postoperative Neurocognitive Disorders",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Neurocognitive Disorders",
        "Postoperative Cognitive Dysfunction"
      ],
      "interventions": [
        {
          "name": "Brain Imaging",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Cognitive Testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood Biomarkers",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "65 Years to 75 Years"
      },
      "enrollment_count": 32,
      "start_date": "2020-08-03",
      "completion_date": "2024-02-29",
      "has_results": false,
      "last_update_posted_date": "2024-12-10",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04566562"
    },
    {
      "nct_id": "NCT02897427",
      "title": "Throat and Other HPV-Related Cancers in Men: Identifying Them Early",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Human Papillomavirus Infection"
      ],
      "interventions": [
        {
          "name": "Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Ultrasonography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "64 Years",
        "sex": "MALE",
        "summary": "50 Years to 64 Years · Male only"
      },
      "enrollment_count": 1500,
      "start_date": "2017-03-28",
      "completion_date": "2027-03-28",
      "has_results": false,
      "last_update_posted_date": "2026-01-26",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02897427"
    },
    {
      "nct_id": "NCT02494635",
      "title": "Ultrasound and Biomarker Tests in Predicting Cancer Aggressiveness in Tissue Samples of Patients With Bladder Cancer",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bladder Papillary Urothelial Carcinoma",
        "Stage 0a Bladder Urothelial Carcinoma",
        "Stage 0is Bladder Urothelial Carcinoma",
        "Stage I Bladder Cancer With Carcinoma In Situ",
        "Stage I Bladder Urothelial Carcinoma",
        "Stage II Bladder Urothelial Carcinoma",
        "Stage III Bladder Urothelial Carcinoma",
        "Stage IV Bladder Urothelial Carcinoma"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "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": 4,
      "start_date": "2015-09-16",
      "completion_date": "2019-02-22",
      "has_results": false,
      "last_update_posted_date": "2019-07-08",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02494635"
    },
    {
      "nct_id": "NCT03410810",
      "title": "Childhood Outcomes of Preterm Brain Abnormalities",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Premature Birth",
        "Neurodevelopmental Disorders",
        "Brain Development Abnormality",
        "Brain Lesion"
      ],
      "interventions": [
        {
          "name": "MRI",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Neurodevelopmental/Neuropsychological Assessment",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Children's Hospital Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "Up to 8 Years"
      },
      "enrollment_count": 80,
      "start_date": "2018-03-01",
      "completion_date": "2025-08-01",
      "has_results": false,
      "last_update_posted_date": "2024-04-10",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03410810"
    },
    {
      "nct_id": "NCT03121287",
      "title": "Early Imaging Biomarkers in NSCLC",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thoracic Cancer"
      ],
      "interventions": [
        {
          "name": "Imaging Biomarkers",
          "type": "OTHER"
        },
        {
          "name": "Pulmonary",
          "type": "OTHER"
        },
        {
          "name": "Imaging",
          "type": "OTHER"
        },
        {
          "name": "Specimen Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 23,
      "start_date": "2015-09-23",
      "completion_date": "2019-01",
      "has_results": false,
      "last_update_posted_date": "2019-08-26",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03121287"
    },
    {
      "nct_id": "NCT07266363",
      "title": "Integrated Cf-miRNA and Exosomal miRNA Signature for Early Detection of Esophageal Squamous Cell Carcinoma",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "ESCC"
      ],
      "interventions": [
        {
          "name": "Small RNA sequencing of exo- and cf-miRNAs",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "RT-qPCR quantification of cf- and exo-miRNAs (SYNERGY assay)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "PCR-based validation (SYNERGY assay)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2025-01-15",
      "completion_date": "2028-06-18",
      "has_results": false,
      "last_update_posted_date": "2026-07-07",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 1,
      "location_summary": "Monrovia, California",
      "locations": [
        {
          "city": "Monrovia",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07266363"
    },
    {
      "nct_id": "NCT03871816",
      "title": "A Study to Determine Frequency of DNA-repair Defects in Men With Metastatic Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Metastatic Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Saliva, Blood, or and/or Archival Tumor Tissue Collection and Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 14532,
      "start_date": "2019-04-22",
      "completion_date": "2022-11-22",
      "has_results": false,
      "last_update_posted_date": "2023-12-11",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 93,
      "location_summary": "Homewood, Alabama • Mobile, Alabama • Phoenix, Arizona + 82 more",
      "locations": [
        {
          "city": "Homewood",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03871816"
    },
    {
      "nct_id": "NCT01196936",
      "title": "Low-Dose Tamoxifen Citrate in Reducing Breast Cancer Risk in Radiation-Induced Cancer Survivors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Tamoxifen Citrate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Digital mammography",
          "type": "PROCEDURE"
        },
        {
          "name": "immunohistochemistry staining method",
          "type": "OTHER"
        },
        {
          "name": "pharmacological study",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "protein expression analysis",
          "type": "GENETIC"
        },
        {
          "name": "pharmacogenomic studies",
          "type": "OTHER"
        },
        {
          "name": "questionnaire administration",
          "type": "OTHER"
        },
        {
          "name": "Fine needle aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality of Life Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "OTHER",
        "GENETIC"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "25 Years and older · Female only"
      },
      "enrollment_count": 84,
      "start_date": "2010-09",
      "completion_date": "2028-12-11",
      "has_results": true,
      "last_update_posted_date": "2026-01-05",
      "last_synced_at": "2026-10-23T09:53:29.336Z",
      "location_count": 12,
      "location_summary": "Birmingham, Alabama • Duarte, California • Aurora, Colorado + 9 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01196936"
    }
  ]
}