{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clinical+observation%2C+diagnostic+testing&page=2",
    "query": {
      "intervention": "Clinical observation, diagnostic testing",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Clinical+observation%2C+diagnostic+testing&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T01:15:40.103Z",
  "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": "NCT02631720",
      "title": "CLAD Phenotype Specific Risk Factors and Mechanisms",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Transplant",
        "Post Lung Transplantation"
      ],
      "interventions": [
        {
          "name": "Blood Draw",
          "type": "PROCEDURE"
        },
        {
          "name": "Bronchoscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 884,
      "start_date": "2015-12-22",
      "completion_date": "2019-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • Baltimore, Maryland • Durham, North Carolina + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02631720"
    },
    {
      "nct_id": "NCT04396808",
      "title": "Genomics in Michigan to AdJust Outcomes in Prostate canceR (G-MAJOR) for Men With Newly Diagnosed Favorable Risk Prostate Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Decipher",
          "type": "DEVICE"
        },
        {
          "name": "Prolaris",
          "type": "DEVICE"
        },
        {
          "name": "Oncotype Dx Genomic Prostate Score (GPS)",
          "type": "DEVICE"
        },
        {
          "name": "Standard of care (askMUSIC score)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "University of Michigan Rogel Cancer Center",
      "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": 805,
      "start_date": "2020-11-05",
      "completion_date": "2031-03",
      "has_results": false,
      "last_update_posted_date": "2026-09-09",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 8,
      "location_summary": "Ann Arbor, Michigan • Detroit, Michigan • Grand Rapids, Michigan + 4 more",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Grand Rapids",
          "state": "Michigan"
        },
        {
          "city": "Holland",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04396808"
    },
    {
      "nct_id": "NCT06191575",
      "title": "7 Tesla MRI Neuroimaging in Testicular Cancer Patients With Hypogonadism and on Androgen Replacement Therapy",
      "overall_status": "SUSPENDED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypogonadism",
        "Malignant Testicular Germ Cell Tumor"
      ],
      "interventions": [
        {
          "name": "7 Tesla Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Cognitive Assessment",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Southern California",
      "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": 10,
      "start_date": "2022-11-29",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06191575"
    },
    {
      "nct_id": "NCT04082468",
      "title": "VALIDATE: Factor VIII Trending for MS Relapse",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Blood sample collection for coagulation profile",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "St. Joseph's Hospital and Medical Center, Phoenix",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": "2019-08-13",
      "completion_date": "2022-03-01",
      "has_results": false,
      "last_update_posted_date": "2021-09-21",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04082468"
    },
    {
      "nct_id": "NCT05424783",
      "title": "MRI And GPS Informing Choices for Prostate Cancer Treatment (MAGIC)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Genomic Prostate Score assay and Multi-parametric magnetic resonance imaging study of the prostate",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "76 Years",
        "sex": "MALE",
        "summary": "40 Years to 76 Years · Male only"
      },
      "enrollment_count": 222,
      "start_date": "2022-10-15",
      "completion_date": "2027-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05424783"
    },
    {
      "nct_id": "NCT03794128",
      "title": "A Study of Personalized Neoantigen Cancer Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non Small Cell Lung Cancer",
        "Colorectal Cancer",
        "Gastroesophageal Adenocarcinoma",
        "Urothelial Carcinoma",
        "Pancreatic Ductal Adenocarcinoma"
      ],
      "interventions": [
        {
          "name": "Blood collection for research (next-generation sequencing [NGS])",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood collection for research (HLA typing)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Gritstone bio, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 93,
      "start_date": "2018-07-25",
      "completion_date": "2020-05-26",
      "has_results": false,
      "last_update_posted_date": "2020-09-11",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 5,
      "location_summary": "Chicago, Illinois • New York, New York • Columbus, Ohio + 2 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Fairfax",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03794128"
    },
    {
      "nct_id": "NCT04264767",
      "title": "Characterization of Methylation Patterns in Cancer and Non-Cancer cfDNA",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer",
        "Solid Tumor",
        "Hematologic Neoplasms"
      ],
      "interventions": [
        {
          "name": "Blood collection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Nucleix Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "22 Years to 80 Years"
      },
      "enrollment_count": 800,
      "start_date": "2019-04-17",
      "completion_date": "2021-01-30",
      "has_results": false,
      "last_update_posted_date": "2022-06-08",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 2,
      "location_summary": "Glendale, California • Los Angeles, California",
      "locations": [
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04264767"
    },
    {
      "nct_id": "NCT03712605",
      "title": "Testing Pembrolizumab Versus Observation in Patients With Merkel Cell Carcinoma After Surgery, STAMP Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pathologic Stage I Cutaneous Merkel Cell Carcinoma AJCC v8",
        "Pathologic Stage II Cutaneous Merkel Cell Carcinoma AJCC v8",
        "Pathologic Stage III Cutaneous Merkel Cell Carcinoma AJCC v8"
      ],
      "interventions": [
        {
          "name": "Best Practice",
          "type": "OTHER"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Pembrolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Radiation Therapy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "BIOLOGICAL",
        "RADIATION"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 280,
      "start_date": "2018-11-15",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 552,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 357 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03712605"
    },
    {
      "nct_id": "NCT04468841",
      "title": "Measuring Cell-Free DNA (cfDNA) Levels in People With Follicular Lymphoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Follicular Lymphoma"
      ],
      "interventions": [
        {
          "name": "cfDNA testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "sample of saliva or fingernail clipping",
          "type": "OTHER"
        },
        {
          "name": "pre-treatment test specimen",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "PET/CT, CT, or MRI testing",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "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": 77,
      "start_date": "2020-07-08",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 7,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04468841"
    },
    {
      "nct_id": "NCT03533582",
      "title": "Cisplatin and Combination Chemotherapy in Treating Children and Young Adults With Hepatoblastoma or Liver Cancer After Surgery",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Childhood Hepatocellular Carcinoma",
        "Childhood Malignant Liver Neoplasm",
        "Fibrolamellar Carcinoma",
        "Hepatoblastoma",
        "Hepatocellular Malignant Neoplasm, Not Otherwise Specified"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Doxorubicin",
          "type": "DRUG"
        },
        {
          "name": "Etoposide",
          "type": "DRUG"
        },
        {
          "name": "Fluorouracil",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Irinotecan",
          "type": "DRUG"
        },
        {
          "name": "Oxaliplatin",
          "type": "DRUG"
        },
        {
          "name": "Patient Observation",
          "type": "OTHER"
        },
        {
          "name": "Resection",
          "type": "PROCEDURE"
        },
        {
          "name": "Sorafenib",
          "type": "DRUG"
        },
        {
          "name": "Vincristine Sulfate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "Up to 30 Years"
      },
      "enrollment_count": 537,
      "start_date": "2018-05-24",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-14",
      "last_synced_at": "2026-09-29T01:15:40.103Z",
      "location_count": 180,
      "location_summary": "Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 134 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03533582"
    }
  ]
}