{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+Testing&page=31",
    "query": {
      "intervention": "Biomarker Testing",
      "page": 31
    },
    "page_size": 10
  },
  "pagination": {
    "page": 31,
    "page_size": 10,
    "total_count": 808,
    "total_pages": 81,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+Testing&page=32&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Biomarker+Testing&page=30&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T00:00:42.186Z",
  "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": "NCT02742337",
      "title": "Identification of Epigenetic Biomarkers for Early Detection of Rheumatic Disease",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Arthritis, Rheumatoid"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Arthritis Northwest PLLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2015-10",
      "completion_date": "2016-09",
      "has_results": false,
      "last_update_posted_date": "2016-04-19",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "Spokane, Washington",
      "locations": [
        {
          "city": "Spokane",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02742337"
    },
    {
      "nct_id": "NCT03451994",
      "title": "Exploratory Study of Volatile Organic Compounds in Alveolar Breath",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Nutritional and Metabolic Diseases"
      ],
      "interventions": [
        {
          "name": "Breath test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mebo Research, Inc.",
      "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": "2011-10-01",
      "completion_date": "2020-10-11",
      "has_results": false,
      "last_update_posted_date": "2020-10-14",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03451994"
    },
    {
      "nct_id": "NCT07695753",
      "title": "A Study to Evaluate the Ability of Sunscreen Products to Modulate the Effects of Deep UVA +/- HEV Blue Light Induced Pigmentation and Biomarkers of Cutaneous Oxidative Stress",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pigmentation",
        "Oxidative Stress"
      ],
      "interventions": [
        {
          "name": "Sunscreen application #1",
          "type": "OTHER"
        },
        {
          "name": "Sunscreen application #2",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Kenvue Brands LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 22,
      "start_date": "2025-10-27",
      "completion_date": "2025-12-06",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "Union, New Jersey",
      "locations": [
        {
          "city": "Union",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07695753"
    },
    {
      "nct_id": "NCT01539395",
      "title": "A Cross-Sectional Study of MSDx Complex 1 as a Marker for Active Disease in Multiple Sclerosis",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "MSDx Complex-1 Biomarker Test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "MSDx, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2012-01",
      "completion_date": "2012-07",
      "has_results": false,
      "last_update_posted_date": "2020-09-02",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01539395"
    },
    {
      "nct_id": "NCT04947917",
      "title": "Axillary Lymph Node Tattoo Marking Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer",
        "Lymph Node Metastases"
      ],
      "interventions": [
        {
          "name": "SpotTM Tattoo Ink",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2021-12-29",
      "completion_date": "2023-04-13",
      "has_results": false,
      "last_update_posted_date": "2024-01-23",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04947917"
    },
    {
      "nct_id": "NCT06294886",
      "title": "Vaginal Fluid Collection for Detection of Endometrial Cancer",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Endometrial Cancer"
      ],
      "interventions": [
        {
          "name": "Screening test to detect endometrial cancer and precancer",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Innovis LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2024-02-19",
      "completion_date": "2024-06-01",
      "has_results": false,
      "last_update_posted_date": "2024-03-07",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "Shreveport, Louisiana",
      "locations": [
        {
          "city": "Shreveport",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06294886"
    },
    {
      "nct_id": "NCT00588003",
      "title": "Gene Expression Following Short Term Exposure to Neoadjuvant Endocrine Therapy in Invasive Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "anastrozole",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "45 Years and older · Female only"
      },
      "enrollment_count": 45,
      "start_date": "2004-03",
      "completion_date": "2009-11",
      "has_results": false,
      "last_update_posted_date": "2015-12-24",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00588003"
    },
    {
      "nct_id": "NCT02152462",
      "title": "Exergaming Intervention and Breast Cancer Biomarkers in Black Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Exergaming",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Georgetown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "59 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 59 Years · Female only"
      },
      "enrollment_count": 150,
      "start_date": "2012-12",
      "completion_date": "2019-12",
      "has_results": false,
      "last_update_posted_date": "2020-02-10",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02152462"
    },
    {
      "nct_id": "NCT06803927",
      "title": "Non-Endoscopic Detection of Barrett's Esophagus Using Methylation Biomarkers on EndoSign® Cell Collection Device Samples",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Barrett Esophagus"
      ],
      "interventions": [
        {
          "name": "Barrett's Esophagus Test (LDT)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Cyted Health Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 700,
      "start_date": "2025-02-05",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-29",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "Cordova, Tennessee",
      "locations": [
        {
          "city": "Cordova",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06803927"
    },
    {
      "nct_id": "NCT04496830",
      "title": "SPINCOMS Biomarker Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 161,
      "start_date": "2020-06-15",
      "completion_date": "2023-11-24",
      "has_results": false,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-10-24T00:00:42.186Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04496830"
    }
  ]
}