{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tumor+markers&page=5",
    "query": {
      "intervention": "Tumor markers",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 361,
    "total_pages": 37,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tumor+markers&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Tumor+markers&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T12:05:26.639Z",
  "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": "NCT01344109",
      "title": "A Pilot Study of Tumor-Derived Exosomes as Diagnostic and Prognostic Markers in Breast Cancer Patients Receiving Neoadjuvant Chemotherapy",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Neoplasms"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Leo W. Jenkins Cancer Center",
      "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": 0,
      "start_date": "2011-02",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2017-07-21",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 1,
      "location_summary": "Greenville, North Carolina",
      "locations": [
        {
          "city": "Greenville",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01344109"
    },
    {
      "nct_id": "NCT07361107",
      "title": "Evaluation of Circulating Immune Response After Histosonics in Colorectal Cancer (ECHO-CRC)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Colorectal (Colon or Rectal) Cancer"
      ],
      "interventions": [
        {
          "name": "Histotripsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Northwell Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2025-09-26",
      "completion_date": "2027-09-27",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 1,
      "location_summary": "New Hyde Park, New York",
      "locations": [
        {
          "city": "New Hyde Park",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07361107"
    },
    {
      "nct_id": "NCT03078036",
      "title": "International Breast Cancer Biomarker,Standard of Care and Real World Outcomes Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Germline BRCA Test (blood)",
          "type": "GENETIC"
        },
        {
          "name": "FoundationOne Dx Genomic Profile (archival Tumour Specimen)",
          "type": "GENETIC"
        },
        {
          "name": "Follow-up",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "AstraZeneca",
      "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": 873,
      "start_date": "2017-03-13",
      "completion_date": "2019-05-20",
      "has_results": false,
      "last_update_posted_date": "2020-05-20",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 14,
      "location_summary": "Santa Barbara, California • Denver, Colorado • Hialeah, Florida + 10 more",
      "locations": [
        {
          "city": "Santa Barbara",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Denton",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03078036"
    },
    {
      "nct_id": "NCT00582062",
      "title": "Detection of Peritoneal Micrometastasis in Gastric and Pancreatic Cancer in Peritoneal Wash Samples",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gastric and Pancreatic Cancer"
      ],
      "interventions": [
        {
          "name": "washings for experimental marker testing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 144,
      "start_date": "2006-03",
      "completion_date": "2023-05-02",
      "has_results": false,
      "last_update_posted_date": "2023-05-06",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00582062"
    },
    {
      "nct_id": "NCT00603967",
      "title": "Effect of Aromatase Inhibitors on Bones and Genes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer",
        "Postmenopausal"
      ],
      "interventions": [
        {
          "name": "Dual x-ray absorptiometry (DXA)",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 151,
      "start_date": "2006-03",
      "completion_date": "2009-10",
      "has_results": false,
      "last_update_posted_date": "2013-05-24",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00603967"
    },
    {
      "nct_id": "NCT04214886",
      "title": "CD19 Chimeric Antigen Receptor (CAR) T Cells for Adults With Recurrent or Refractory B Cell Malignancies",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "B-Cell Acute Lymphoblastic Leukemia, Adult",
        "B-cell Lymphoma Refractory",
        "B-cell Lymphoma Recurrent"
      ],
      "interventions": [
        {
          "name": "Fludarabine",
          "type": "DRUG"
        },
        {
          "name": "Cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "CD19-CD34 CAR transduced T cells",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Loyola University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2019-12-31",
      "completion_date": "2034-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-08-15",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 1,
      "location_summary": "Maywood, Illinois",
      "locations": [
        {
          "city": "Maywood",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04214886"
    },
    {
      "nct_id": "NCT01177124",
      "title": "Mindfulness-Based Stress Reduction (MBSR) Symptom Cluster Trial for Breast Cancer Survivors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "MBSR 6 Weeks Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Cecile Lengacher",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "21 Years and older · Female only"
      },
      "enrollment_count": 300,
      "start_date": "2009-02",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2014-02-27",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 3,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01177124"
    },
    {
      "nct_id": "NCT00687622",
      "title": "Open-label Study to Investigate the Safety, PK, and Pharmacodynamics of GSK1120212 in Subjects With Solid Tumors or Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Solid Tumours"
      ],
      "interventions": [
        {
          "name": "GSK1120212",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 206,
      "start_date": "2008-07-28",
      "completion_date": "2011-11-08",
      "has_results": false,
      "last_update_posted_date": "2017-11-13",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 12,
      "location_summary": "Scottsdale, Arizona • Aurora, Colorado • Fort Myers, Florida + 9 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        },
        {
          "city": "Ocoee",
          "state": "Florida"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00687622"
    },
    {
      "nct_id": "NCT01012804",
      "title": "Study of Biomarkers in Tissue Samples From Patients With Metastatic Colon Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "western blotting",
          "type": "GENETIC"
        },
        {
          "name": "immunohistochemistry staining method",
          "type": "OTHER"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "Georgetown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2000-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2011-03-24",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "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/NCT01012804"
    },
    {
      "nct_id": "NCT00608920",
      "title": "Single Photon Emission Computed Tomography (SPECT) Lymph Node Mapping",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adenocarcinoma of the Prostate"
      ],
      "interventions": [
        {
          "name": "Single Photon Emission Computed Tomography (SPECT)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "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": 15,
      "start_date": "2007-03",
      "completion_date": "2009-04",
      "has_results": false,
      "last_update_posted_date": "2013-05-24",
      "last_synced_at": "2026-11-15T12:05:26.639Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00608920"
    }
  ]
}