{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observation+only&page=22",
    "query": {
      "intervention": "Observation only",
      "page": 22
    },
    "page_size": 10
  },
  "pagination": {
    "page": 22,
    "page_size": 10,
    "total_count": 878,
    "total_pages": 88,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observation+only&page=23&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observation+only&page=21&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-31T07:38:23.790Z",
  "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": "NCT02451228",
      "title": "Indomethacin PK and PD Therapy in Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Premature Labor",
        "Pregnancy",
        "Premature Birth"
      ],
      "interventions": [
        {
          "name": "Serial blood collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Texas Medical Branch, Galveston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 62,
      "start_date": "2015-05",
      "completion_date": "2018-12-31",
      "has_results": false,
      "last_update_posted_date": "2019-06-11",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • Jackson, Mississippi • New York, New York + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Galveston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02451228"
    },
    {
      "nct_id": "NCT05616793",
      "title": "Safety and Tolerability Subretinal OPGx-001 for LCA5-Associated Inherited Retinal Degeneration (LCA5-IRD) and Non-interventional Arm With Untreated Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "LCA5"
      ],
      "interventions": [
        {
          "name": "AAV8.hLCA5",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Opus Genetics, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "4 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2023-06-15",
      "completion_date": "2028-06-15",
      "has_results": false,
      "last_update_posted_date": "2026-02-19",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Dallas, Texas",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05616793"
    },
    {
      "nct_id": "NCT06181994",
      "title": "Middle Meningeal Artery Embolization (MMAE) Outcomes for Chronic Subdural Hematoma (cSDH)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Subdural Hematoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Montefiore 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": 5000,
      "start_date": "2023-12-05",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-21",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 18,
      "location_summary": "Coral Gables, Florida • Jacksonville, Florida • Miami, Florida + 13 more",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06181994"
    },
    {
      "nct_id": "NCT05180357",
      "title": "RANS. Study in Patients With Severe Eosinophilic Asthma and Nasal Polyps.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Severe Eosinophilic Asthma",
        "Nasal Polyps"
      ],
      "interventions": [
        {
          "name": "FASENRA(benralizumab)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 273,
      "start_date": "2021-11-23",
      "completion_date": "2022-10-28",
      "has_results": false,
      "last_update_posted_date": "2023-04-19",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 8,
      "location_summary": "Centennial, Colorado • Denver, Colorado • Glendale, New York + 5 more",
      "locations": [
        {
          "city": "Centennial",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Glendale",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05180357"
    },
    {
      "nct_id": "NCT07374692",
      "title": "Observational Study of Responses to Treatments in Advanced Central Nervous System (CNS) Tumors",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Recurrent CNS Tumors",
        "Brain Cancer",
        "Gliomas",
        "IDH-wildtype Gliomas",
        "IDH-mutant Gliomas",
        "Rare CNS Tumor"
      ],
      "interventions": [
        {
          "name": "SmartMatch testing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "15 Years to 120 Years"
      },
      "enrollment_count": 4,
      "start_date": "2026-02-04",
      "completion_date": "2026-09-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-29",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07374692"
    },
    {
      "nct_id": "NCT01070719",
      "title": "Pharmacokinetic, Immunological and Biochemical Sample Collection and Analysis of a Tysabri Patient Cohort",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Relapse"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "John F. Foley, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 270,
      "start_date": "2010-02",
      "completion_date": "2010-05",
      "has_results": false,
      "last_update_posted_date": "2012-03-01",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01070719"
    },
    {
      "nct_id": "NCT04219007",
      "title": "Vosoritide for Selected Genetic Causes of Short Stature",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Short Stature"
      ],
      "interventions": [
        {
          "name": "Vosoritide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Andrew Dauber",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "3 Years to 10 Years"
      },
      "enrollment_count": 56,
      "start_date": "2020-08-04",
      "completion_date": "2035-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-18",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "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/NCT04219007"
    },
    {
      "nct_id": "NCT03238157",
      "title": "Steroids for Early Treatment of Radiation Retinopathy",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Radiation Retinopathy"
      ],
      "interventions": [
        {
          "name": "Fluocinolone Acetonide (FA) implant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 0,
      "start_date": "2022-02-01",
      "completion_date": "2022-09-01",
      "has_results": false,
      "last_update_posted_date": "2021-08-04",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03238157"
    },
    {
      "nct_id": "NCT02854657",
      "title": "Teaching Skin Self -Examination to Melanoma Patients and Their Skin Check Partners",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Melanoma"
      ],
      "interventions": [
        {
          "name": "Skin Self- examination structured training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 682,
      "start_date": "2016-05",
      "completion_date": "2021-03-09",
      "has_results": false,
      "last_update_posted_date": "2021-03-11",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02854657"
    },
    {
      "nct_id": "NCT00672841",
      "title": "β-D-Glucan (BDG) Surveillance With Preemptive Anidulafungin vs. Standard Care for Invasive Candidiasis in Surgical Intensive Care Unit (SICU) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Invasive Candidiasis"
      ],
      "interventions": [
        {
          "name": "Preemptive Therapy with Anidulafungin",
          "type": "DRUG"
        },
        {
          "name": "Empiric antifungal therapy based on physician discretion.",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2008-06",
      "completion_date": "2011-01",
      "has_results": true,
      "last_update_posted_date": "2015-02-06",
      "last_synced_at": "2026-10-31T07:38:23.790Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00672841"
    }
  ]
}