{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Observational+Study&page=5",
    "query": {
      "condition": "Observational Study",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 2011,
    "total_pages": 202,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Observational+Study&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Observational+Study&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-30T03:19:09.287Z",
  "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": "NCT04614038",
      "title": "DETEC® pH Point of Care Wound Diagnostic Test",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetic Foot Ulcer",
        "Venous Leg Ulcer",
        "Pressure Ulcer",
        "Wound, Non-Healed"
      ],
      "interventions": [
        {
          "name": "DETEC® pH",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Progenitec Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 450,
      "start_date": "2022-01-01",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-11-18",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 2,
      "location_summary": "Lake Success, New York • Arlington, Texas",
      "locations": [
        {
          "city": "Lake Success",
          "state": "New York"
        },
        {
          "city": "Arlington",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04614038"
    },
    {
      "nct_id": "NCT06238648",
      "title": "Epcoritamab Compared to Observation for Treating B-cell Lymphoma Patients Not in Complete Remission After CD19-directed CAR-T Therapy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diffuse Large B-Cell Lymphoma, Not Otherwise Specified",
        "Primary Mediastinal Large B-Cell Lymphoma",
        "Transformed Indolent B-Cell Non-Hodgkin Lymphoma to Diffuse Large B-Cell Lymphoma"
      ],
      "interventions": [
        {
          "name": "Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Epcoritamab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Patient Observation",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Academic and Community Cancer Research United",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2024-01-31",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-09-26",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 6,
      "location_summary": "Rochester, Minnesota • St Louis, Missouri • Hackensack, New Jersey + 3 more",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Hackensack",
          "state": "New Jersey"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06238648"
    },
    {
      "nct_id": "NCT03811015",
      "title": "Testing Immunotherapy Versus Observation in Patients With HPV Throat Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Clinical Stage II HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8",
        "Clinical Stage III HPV-Mediated (p16-Positive) Oropharyngeal Carcinoma AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "Fludeoxyglucose F-18",
          "type": "OTHER"
        },
        {
          "name": "Intensity-Modulated Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Nivolumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Patient Observation",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER",
        "RADIATION",
        "BIOLOGICAL"
      ],
      "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": 636,
      "start_date": "2019-08-16",
      "completion_date": "2030-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-10-26",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 727,
      "location_summary": "Fairhope, Alabama • Mobile, Alabama • Anchorage, Alaska + 462 more",
      "locations": [
        {
          "city": "Fairhope",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03811015"
    },
    {
      "nct_id": "NCT01807052",
      "title": "Biomarker Expression in Tissue Samples From Patients With Bone Sarcomas",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Localized Osteosarcoma",
        "Metastatic Osteosarcoma",
        "Recurrent Osteosarcoma"
      ],
      "interventions": [
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "Up to 39 Years"
      },
      "enrollment_count": 34,
      "start_date": "2009-11",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-05-19",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 1,
      "location_summary": "Monrovia, California",
      "locations": [
        {
          "city": "Monrovia",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01807052"
    },
    {
      "nct_id": "NCT02804763",
      "title": "A Phase 2 Efficacy and Safety Study of Dapirolizumab Pegol (DZP) in Systemic Lupus Erythematosus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Systemic Lupus Erythematosus (SLE)"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Dapirolizumab pegol (DZP)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "UCB Biopharma S.P.R.L.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 182,
      "start_date": "2016-06-02",
      "completion_date": "2018-11-19",
      "has_results": true,
      "last_update_posted_date": "2021-06-30",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 25,
      "location_summary": "Birmingham, Alabama • El Cajon, California • Huntington Beach, California + 21 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "El Cajon",
          "state": "California"
        },
        {
          "city": "El Cajon",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02804763"
    },
    {
      "nct_id": "NCT05667116",
      "title": "eVusheld Assessment reaL wORld Effectiveness at UPMC",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS-CoV-2, COVID-19"
      ],
      "interventions": [
        {
          "name": "EVUSHELD",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 4232,
      "start_date": "2023-01-09",
      "completion_date": "2023-07-24",
      "has_results": false,
      "last_update_posted_date": "2024-11-12",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05667116"
    },
    {
      "nct_id": "NCT02109848",
      "title": "Observational Study of Keratoconus and Post-keratoplasty Eyes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Keratoconus and Post-keratoplasty"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 7,
      "start_date": "2011-06",
      "completion_date": "2017-08-31",
      "has_results": false,
      "last_update_posted_date": "2018-04-06",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02109848"
    },
    {
      "nct_id": "NCT06074133",
      "title": "A Combined Biomarker Model for Risk Stratification of Indeterminate Pulmonary Nodules",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Nodule"
      ],
      "interventions": [
        {
          "name": "Blood collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Chest Computed Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Vanderbilt-Ingram Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 103,
      "start_date": "2024-03-07",
      "completion_date": "2029-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 4,
      "location_summary": "Aurora, Colorado • Nashville, Tennessee",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06074133"
    },
    {
      "nct_id": "NCT01362621",
      "title": "Observational and Epidemiologic Study of the Disease Course and Unmet Needs in Children With Symptomatic Moderate to Severe Allergic Asthma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Moderate to Severe Allergic Asthma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "6 Years to 11 Years"
      },
      "enrollment_count": 474,
      "start_date": "2008-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2011-06-16",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 50,
      "location_summary": "Birmingham, Alabama • Crescent City, California • Fresno, California + 47 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Crescent City",
          "state": "California"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01362621"
    },
    {
      "nct_id": "NCT03779906",
      "title": "Thyroid Function of Pediatric Subjects Following Isovue® Administration",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypothyroidism"
      ],
      "interventions": [
        {
          "name": "Isovue",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bracco Diagnostics, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "3 Years",
        "sex": "ALL",
        "summary": "Up to 3 Years"
      },
      "enrollment_count": 17,
      "start_date": "2019-03-26",
      "completion_date": "2022-03-25",
      "has_results": true,
      "last_update_posted_date": "2025-07-30",
      "last_synced_at": "2026-10-30T03:19:09.287Z",
      "location_count": 4,
      "location_summary": "Phoenix, Arizona • Omaha, Nebraska • Akron, Ohio + 1 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Akron",
          "state": "Ohio"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03779906"
    }
  ]
}