{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observation+Only&page=8",
    "query": {
      "intervention": "Observation Only",
      "page": 8
    },
    "page_size": 10
  },
  "pagination": {
    "page": 8,
    "page_size": 10,
    "total_count": 874,
    "total_pages": 88,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observation+Only&page=9&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observation+Only&page=7&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T03:04:52.551Z",
  "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": "NCT01987921",
      "title": "Observational Study of Pediatric Acute Kidney Injury, Risk Factors and Outcomes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acute Kidney Injury"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "3 Months to 25 Years"
      },
      "enrollment_count": 5237,
      "start_date": "2014-01",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-24",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Palo Alto, California • Aurora, Colorado + 14 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01987921"
    },
    {
      "nct_id": "NCT04382716",
      "title": "Pediatric Acute-Onset Neuropsychiatric Syndrome (PANS): Clinical Characterization and Prospective Course",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "PANS",
        "PANDAS"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "4 Years to 16 Years"
      },
      "enrollment_count": 22,
      "start_date": "2018-05-02",
      "completion_date": "2019-08-15",
      "has_results": false,
      "last_update_posted_date": "2020-05-11",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04382716"
    },
    {
      "nct_id": "NCT03250832",
      "title": "Study of TSR-033 With an Anti-programmed Cell Death-1 Receptor (PD-1) in Participants With Advanced Solid Tumors",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Neoplasms"
      ],
      "interventions": [
        {
          "name": "TSR-033",
          "type": "DRUG"
        },
        {
          "name": "Dostarlimab",
          "type": "DRUG"
        },
        {
          "name": "mFOLFOX6",
          "type": "DRUG"
        },
        {
          "name": "FOLFIRI",
          "type": "DRUG"
        },
        {
          "name": "Bevacizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Tesaro, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 111,
      "start_date": "2017-08-08",
      "completion_date": "2023-02-13",
      "has_results": true,
      "last_update_posted_date": "2024-04-11",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 11,
      "location_summary": "Los Angeles, California • Whittier, California • Sarasota, Florida + 8 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Whittier",
          "state": "California"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03250832"
    },
    {
      "nct_id": "NCT04004806",
      "title": "Tracking Device Guided Feedback to Enhance Patient Physician Interaction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Physician Patient Relation",
        "Burnout, Professional"
      ],
      "interventions": [
        {
          "name": "Hill Rom tracking device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 239,
      "start_date": "2019-09-02",
      "completion_date": "2020-11-30",
      "has_results": false,
      "last_update_posted_date": "2021-01-06",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04004806"
    },
    {
      "nct_id": "NCT05572099",
      "title": "ExoDx Prostate Evaluation in Active Surveillance Patient Population",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "ExoDx Prostate",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Exosome Diagnostics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "45 Years and older · Male only"
      },
      "enrollment_count": 750,
      "start_date": "2022-10-01",
      "completion_date": "2023-10",
      "has_results": false,
      "last_update_posted_date": "2022-10-07",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 1,
      "location_summary": "Towson, Maryland",
      "locations": [
        {
          "city": "Towson",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05572099"
    },
    {
      "nct_id": "NCT01249027",
      "title": "XIENCE V Everolimus Eluting Coronary Stent System (EECSS) China: Post-Approval, Single-Arm Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Angioplasty",
        "Chronic Coronary Occlusion",
        "Stent Thrombosis",
        "Vascular Disease",
        "Myocardial Ischemia",
        "Coronary Artery Stenosis",
        "Coronary Disease",
        "Coronary Artery Disease",
        "Coronary Restenosis"
      ],
      "interventions": [
        {
          "name": "XIENCE V® Everolimus Eluting Coronary Stent System (EECSS)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Devices",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 2605,
      "start_date": "2010-11",
      "completion_date": "2017-01",
      "has_results": true,
      "last_update_posted_date": "2019-03-01",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 1,
      "location_summary": "Santa Clara, California",
      "locations": [
        {
          "city": "Santa Clara",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01249027"
    },
    {
      "nct_id": "NCT04510506",
      "title": "Artificial Pancreas - Adolescent Physiology & Psychology Longitudinal Evaluation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 1 Diabetes"
      ],
      "interventions": [
        {
          "name": "Artificial Pancreas (AP)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "11 Years to 12 Years"
      },
      "enrollment_count": 42,
      "start_date": "2020-11-19",
      "completion_date": "2025-10-24",
      "has_results": false,
      "last_update_posted_date": "2025-12-10",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04510506"
    },
    {
      "nct_id": "NCT05163899",
      "title": "Investigation of Surgical Sectioning of the Filum Terminale in Treating Occult Tethered Cord Syndrome Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tethered Cord",
        "Tethered Cord Syndrome",
        "Occult Spina Bifida",
        "Spina Bifida Occulta"
      ],
      "interventions": [
        {
          "name": "Release of filum terminale",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "2 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2022-05-19",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05163899"
    },
    {
      "nct_id": "NCT01153906",
      "title": "Post-marketing Safety Study of Autoimmune Diseases Following Cervarix® Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infections, Papillomavirus"
      ],
      "interventions": [
        {
          "name": "Data collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "25 Years",
        "sex": "FEMALE",
        "summary": "9 Years to 25 Years · Female only"
      },
      "enrollment_count": 1516,
      "start_date": "2010-10",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2014-12-02",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 1,
      "location_summary": "Wilmington, Delaware",
      "locations": [
        {
          "city": "Wilmington",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01153906"
    },
    {
      "nct_id": "NCT00891592",
      "title": "Umbilical Cord Blood Transplant for Hematological Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "CML",
        "AML",
        "MDS",
        "ALL",
        "NHL",
        "Multiple Myeloma",
        "Hodgkin's Disease"
      ],
      "interventions": [
        {
          "name": "Ex Vivo CD3/CD28 costimulated Umbilical Cord Blood T cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Observation Arm",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 5,
      "start_date": "2009-01",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-08-19",
      "last_synced_at": "2026-10-20T03:04:52.551Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00891592"
    }
  ]
}