{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Whole+blood+for+ctDNA&page=2",
    "query": {
      "intervention": "Whole blood for ctDNA",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 102,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Whole+blood+for+ctDNA&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Whole+blood+for+ctDNA&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T20:53:00.262Z",
  "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": "NCT03803553",
      "title": "Identification and Treatment Of Micrometastatic Disease in Stage III Colon Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Metastatic Colon Cancer",
        "Stage III Colon Cancer"
      ],
      "interventions": [
        {
          "name": "FOLFIRI Protocol",
          "type": "DRUG"
        },
        {
          "name": "ACTIVE SURVEILLANCE",
          "type": "OTHER"
        },
        {
          "name": "Nivolumab Protocol",
          "type": "DRUG"
        },
        {
          "name": "Encorafenib/Binimetinib/Cetuximab Protocol",
          "type": "DRUG"
        },
        {
          "name": "Trastuzumab + Pertuzumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2020-04-16",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-09",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 3,
      "location_summary": "Boston, Massachusetts • New York, New York",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03803553"
    },
    {
      "nct_id": "NCT05482516",
      "title": "Evaluating Novel Therapies in ctDNA Positive GI Cancers",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Colon Adenocarcinoma",
        "Rectal Adenocarcinoma",
        "Gastric Adenocarcinoma",
        "Pancreatic Adenocarcinoma",
        "Hepatocellular Carcinoma",
        "Adenocarcinoma of Biliary Tract",
        "Gallbladder Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Atezolizumab",
          "type": "DRUG"
        },
        {
          "name": "Bevacizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 11,
      "start_date": "2023-03-29",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-10-06",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "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/NCT05482516"
    },
    {
      "nct_id": "NCT06958107",
      "title": "LCI-SAR-BSTS-CTDNA-001: Circulating Tumor DNA Liquid Biopsy in Sarcoma Patients",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sarcoma"
      ],
      "interventions": [
        {
          "name": "Non-Metastatic and Resectable",
          "type": "OTHER"
        },
        {
          "name": "Metastatic and Un-resectable",
          "type": "OTHER"
        },
        {
          "name": "No evidence of disease, under surveillance",
          "type": "OTHER"
        },
        {
          "name": "ALT or WDLS",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 300,
      "start_date": "2025-08-21",
      "completion_date": "2030-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-23",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 2,
      "location_summary": "Charlotte, North Carolina • Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06958107"
    },
    {
      "nct_id": "NCT04354064",
      "title": "Circulating Tumor DNA (ctDNA) for Early Treatment Response Assessment of Solid Tumors",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy Volunteer",
        "Prostate Cancer",
        "Head and Neck Cancer",
        "Esophageal Cancer",
        "Genitourinary Cancer",
        "Sarcoma",
        "Breast Cancer",
        "Colon Cancer",
        "Gastrointestinal Cancer",
        "Solid Tumor Cancer",
        "Lung Cancer",
        "Skin Cancer",
        "Melanoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2019-05-29",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04354064"
    },
    {
      "nct_id": "NCT03749083",
      "title": "A Study of the Role of Circulating Tumor DNA in Predicting the Likelihood of Organ Preservation After Clinical Complete Response to Neoadjuvant Therapy for Rectal Cancer",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gastrointestinal Malignancies"
      ],
      "interventions": [
        {
          "name": "The Functional Assessment of Cancer Therapy- Colorectal",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-12-31",
      "completion_date": "2024-10-31",
      "has_results": false,
      "last_update_posted_date": "2019-07-08",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 4,
      "location_summary": "Boston, Massachusetts • Newton, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Newton",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03749083"
    },
    {
      "nct_id": "NCT07288034",
      "title": "Immunotherapy Biomarkers to Predict First-line PD(L)1-based Immunotherapy Response and Selection of Second-line Treatment in Stage IIIB-IV Non-small Cell Lung Cancer, IMMUNO-BIOMAP Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lung Non-Small Cell Carcinoma",
        "Stage IIIB Lung Cancer AJCC v8",
        "Stage IV Lung Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Adagrasib",
          "type": "DRUG"
        },
        {
          "name": "Anti-PD-L1 Monoclonal Antibody",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Anti-PD1 Monoclonal Antibody",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bevacizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Durvalumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Monitoring",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Surveillance",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Tremelimumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "PROCEDURE",
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "City of Hope Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 535,
      "start_date": "2026-04-08",
      "completion_date": "2028-10-08",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 13,
      "location_summary": "Goodyear, Arizona • Corona, California • Duarte, California + 10 more",
      "locations": [
        {
          "city": "Goodyear",
          "state": "Arizona"
        },
        {
          "city": "Corona",
          "state": "California"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07288034"
    },
    {
      "nct_id": "NCT04489719",
      "title": "Impact of DNA Repair Pathway Alterations on Sensitivity to Radium-223 in Bone Metastatic Castration-resistant Prostate Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Castration-Resistant Prostate Carcinoma",
        "Metastatic Malignant Neoplasm in the Bone",
        "Metastatic Prostate Carcinoma",
        "Stage IVB Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Radium Ra 223 Dichloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "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": 48,
      "start_date": "2021-04-16",
      "completion_date": "2030-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 4,
      "location_summary": "Baltimore, Maryland • Bozeman, Montana • Seattle, Washington + 1 more",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Bozeman",
          "state": "Montana"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04489719"
    },
    {
      "nct_id": "NCT05429320",
      "title": "A Study of Local Ablative Therapy (LAT) in People With Non-Small Cell Lung Cancer (NSCLC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Non-small Cell Lung Cancer",
        "Metastatic Non Small Cell Lung Cancer",
        "Nsclc",
        "NSCLC Stage IV",
        "Minimal Residual Disease",
        "Non Small Cell Lung Cancer Metastatic"
      ],
      "interventions": [
        {
          "name": "Local ablative therapy",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood collection to assess for ctDNA",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 37,
      "start_date": "2022-06-15",
      "completion_date": "2026-01-28",
      "has_results": false,
      "last_update_posted_date": "2026-02-02",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 9,
      "location_summary": "Hartford, Connecticut • Miami, Florida • Basking Ridge, New Jersey + 6 more",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05429320"
    },
    {
      "nct_id": "NCT02370355",
      "title": "Molecular Characterization of CTCs and ctDNA in Blood and Plasma Samples From Patients With Metastatic and/or Hormone-Resistant Prostate Cancer",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hormone-Resistant Prostate Cancer",
        "Metastatic Prostate Carcinoma"
      ],
      "interventions": [
        {
          "name": "Cytology Specimen Collection Procedure",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "19 Years and older · Male only"
      },
      "enrollment_count": 24,
      "start_date": "2014-12-23",
      "completion_date": "2016-06-08",
      "has_results": false,
      "last_update_posted_date": "2017-04-17",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02370355"
    },
    {
      "nct_id": "NCT06401421",
      "title": "EXActDNA-003 / NSABP B-64: Study of Molecular Residual Disease Detection in Breast Cancer (MRD)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "ctDNA MRD test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Exact Sciences Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1800,
      "start_date": "2024-06-07",
      "completion_date": "2030-04",
      "has_results": false,
      "last_update_posted_date": "2026-01-20",
      "last_synced_at": "2026-10-07T20:53:00.262Z",
      "location_count": 53,
      "location_summary": "Anchorage, Alaska • Palo Alto, California • Torrance, California + 45 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Vallejo",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06401421"
    }
  ]
}