{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+for+plasma+biomarkers",
    "query": {
      "intervention": "Blood for plasma biomarkers"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 73,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+for+plasma+biomarkers&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T08:03:34.550Z",
  "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": "NCT02109575",
      "title": "Quantitative Detection of Circulating Donor-Specific DNA in Organ Transplant Recipients (DTRT-Multi-Center Study)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cardiovascular Disease",
        "Acute Rejection of Cardiac Transplant",
        "Cardiac Transplant Rejection",
        "Heart Transplant Failure and Rejection"
      ],
      "interventions": [
        {
          "name": "Blood Draw of up to 10 ml",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 540,
      "start_date": "2014-03-01",
      "completion_date": "2020-03-30",
      "has_results": false,
      "last_update_posted_date": "2021-03-26",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 8,
      "location_summary": "Little Rock, Arkansas • Atlanta, Georgia • Chicago, Illinois + 4 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02109575"
    },
    {
      "nct_id": "NCT03108885",
      "title": "Measuring Cell Free DNA During the Course of Treatment for Esophageal Cancer as a Marker of Response and Recurrence",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Esophageal Neoplasm",
        "Esophageal Neoplasms Malignancy Unspecified",
        "Esophageal Neoplasms Malignant",
        "Cancer of Esophagus",
        "Cancer of the Esophagus",
        "Esophageal Cancer",
        "Esophagus Cancer",
        "Neoplasm, Esophageal"
      ],
      "interventions": [
        {
          "name": "Blood and Tissue Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2017-10-01",
      "completion_date": "2020-05-25",
      "has_results": false,
      "last_update_posted_date": "2024-03-22",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03108885"
    },
    {
      "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": "2026-10-02T08:03:34.550Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02382601"
    },
    {
      "nct_id": "NCT01978314",
      "title": "FAST GFR: Pilot Study to Evaluate the Safety of the FAST GFR Test in Patients.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Kidney Disease",
        "Acute Kidney Injury"
      ],
      "interventions": [
        {
          "name": "75 mg / 6 mL VFI™",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "FAST BioMedical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "19 Years to 75 Years"
      },
      "enrollment_count": 33,
      "start_date": "2013-08",
      "completion_date": "2014-08",
      "has_results": true,
      "last_update_posted_date": "2017-12-12",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01978314"
    },
    {
      "nct_id": "NCT00788307",
      "title": "Gene Therapy and Radioactive Iodine in Treating Patients With Locally Recurrent Prostate Cancer That Did Not Respond to Radiation Therapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Ad5-CMV-NIS",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Liothyronine Sodium",
          "type": "DRUG"
        },
        {
          "name": "Reverse Transcriptase Polymerase Chain Reaction",
          "type": "GENETIC"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        },
        {
          "name": "Iodine I 131",
          "type": "RADIATION"
        },
        {
          "name": "Iodine I 123",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "GENETIC",
        "OTHER",
        "RADIATION"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "MALE",
        "summary": "18 Years to 120 Years · Male only"
      },
      "enrollment_count": 8,
      "start_date": "2008-11-03",
      "completion_date": "2018-02-07",
      "has_results": false,
      "last_update_posted_date": "2026-07-22",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00788307"
    },
    {
      "nct_id": "NCT03107819",
      "title": "Metabolomics for Biomarker Discovery in Children With EoE",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Eosinophilic Esophagitis"
      ],
      "interventions": [
        {
          "name": "Plasma and urine metabolomics",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "2 Years to 18 Years"
      },
      "enrollment_count": 24,
      "start_date": "2017-03-29",
      "completion_date": "2018-03-31",
      "has_results": false,
      "last_update_posted_date": "2018-05-01",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03107819"
    },
    {
      "nct_id": "NCT04300998",
      "title": "Study of CAR-T Therapy in Older Patients",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lymphoma",
        "Refractory B-Cell Lymphoma",
        "Lymphoma, B-Cell",
        "DLBCL NOS",
        "High-grade B-cell Lymphoma",
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Activities of Daily Living/ADLs",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Instrumental Activity of Daily Living",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Timed Up and Go",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognition",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Geriatric Depression Scale",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Social Support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Brief Test of Attention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Trail Making Test",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Controlled Oral Word Association Test",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Hopkins Verbal Learning Test-Revised",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood draw",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 154,
      "start_date": "2020-03-04",
      "completion_date": "2027-03-04",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04300998"
    },
    {
      "nct_id": "NCT06059963",
      "title": "A Prospective, Multi-center, Observational Study for Signal-C Test Evaluation",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Colorectal Cancer",
        "Advanced Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Signal-C™",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Universal Diagnostics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "84 Years",
        "sex": "ALL",
        "summary": "45 Years to 84 Years"
      },
      "enrollment_count": 12000,
      "start_date": "2024-01-18",
      "completion_date": "2026-12-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-10",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 1,
      "location_summary": "Raonoke, Virginia",
      "locations": [
        {
          "city": "Raonoke",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06059963"
    },
    {
      "nct_id": "NCT00503581",
      "title": "Megestrol in Treating Patients With Endometrial Neoplasia or Endometrial Hyperplasia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "High Grade Squamous Intraepithelial Neoplasia",
        "Stage 0 Uterine Corpus Cancer"
      ],
      "interventions": [
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Megestrol Acetate",
          "type": "DRUG"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Therapeutic Conventional Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Gynecologic Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 9,
      "start_date": "2007-07",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2020-11-03",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 50,
      "location_summary": "Los Angeles, California • Sylmar, California • Hartford, Connecticut + 34 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sylmar",
          "state": "California"
        },
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "New Britain",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00503581"
    },
    {
      "nct_id": "NCT01295489",
      "title": "Biomarkers in Patients With Previously Untreated Invasive Ovarian Epithelial, Fallopian Tube, or Primary Peritoneal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Fallopian Tube Carcinoma",
        "Ovarian Carcinoma",
        "Primary Peritoneal Carcinoma"
      ],
      "interventions": [
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Gynecologic Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 39,
      "start_date": "2011-03",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2018-05-22",
      "last_synced_at": "2026-10-02T08:03:34.550Z",
      "location_count": 9,
      "location_summary": "Hinsdale, Illinois • Springfield, Illinois • Ames, Iowa + 6 more",
      "locations": [
        {
          "city": "Hinsdale",
          "state": "Illinois"
        },
        {
          "city": "Springfield",
          "state": "Illinois"
        },
        {
          "city": "Ames",
          "state": "Iowa"
        },
        {
          "city": "Billings",
          "state": "Montana"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01295489"
    }
  ]
}