{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+-+observational+study&page=5",
    "query": {
      "intervention": "No intervention - observational study",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 647,
    "total_pages": 65,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+-+observational+study&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+-+observational+study&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T03:09:35.254Z",
  "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": "NCT05442567",
      "title": "A Study of Vedolizumab in Children With Ulcerative Colitis (UC) or Crohn's Disease (CD)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Ulcerative Colitis",
        "Crohn's Disease"
      ],
      "interventions": [
        {
          "name": "Vedolizumab IV",
          "type": "DRUG"
        },
        {
          "name": "No Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 240,
      "start_date": "2023-05-16",
      "completion_date": "2033-02-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-07",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 22,
      "location_summary": "Mobile, Alabama • Phoenix, Arizona • Los Angeles, California + 19 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05442567"
    },
    {
      "nct_id": "NCT06208943",
      "title": "Neural and Cognitive Consequences of COVID-19 Survival",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID Long-Haul",
        "COVID-19",
        "COVID-19 Pandemic",
        "Brain Fog",
        "Memory Deficits",
        "Concentration Ability Impaired",
        "Fatigue"
      ],
      "interventions": [
        {
          "name": "cross-sectional MRI and EEG assessments (NO INTERVENTION)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "San Francisco Veterans Affairs Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 150,
      "start_date": "2021-10-01",
      "completion_date": "2025-09-30",
      "has_results": false,
      "last_update_posted_date": "2024-04-12",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06208943"
    },
    {
      "nct_id": "NCT05803200",
      "title": "A Study to Describe Mothers' and Babies' Outcomes After Exposure to HyQvia During Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Exposure During Pregnancy"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "44 Years",
        "sex": "FEMALE",
        "summary": "16 Years to 44 Years · Female only"
      },
      "enrollment_count": 7,
      "start_date": "2023-03-15",
      "completion_date": "2023-04-14",
      "has_results": false,
      "last_update_posted_date": "2023-09-25",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05803200"
    },
    {
      "nct_id": "NCT02832505",
      "title": "Applications of MRI in Kidney Disease",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Kidney Disease",
        "End-stage Kidney Disease"
      ],
      "interventions": [
        {
          "name": "No intervention but only observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2025-10-30",
      "completion_date": "2028-08-30",
      "has_results": false,
      "last_update_posted_date": "2025-03-25",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02832505"
    },
    {
      "nct_id": "NCT00074373",
      "title": "The Research Registry for Neonatal Lupus",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Neonatal Lupus",
        "Systemic Lupus Erythematosus",
        "Sjogren's Syndrome",
        "Congenital Heart Block"
      ],
      "interventions": [
        {
          "name": "No intervention; observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 100,
      "start_date": "2010-05-27",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2023-08-03",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00074373"
    },
    {
      "nct_id": "NCT00281242",
      "title": "Changes in Cytokine Levels During an Acute Exacerbation of Chronic Obstructive Pulmonary Disease",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive",
        "Lung Diseases, Obstructive"
      ],
      "interventions": [
        {
          "name": "blood draw",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 37,
      "start_date": "2005-09",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2016-01-29",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00281242"
    },
    {
      "nct_id": "NCT06491927",
      "title": "Long Term Follow-up for RGX-202",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Duchenne Muscular Dystrophy"
      ],
      "interventions": [
        {
          "name": "No Intervention",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "GENETIC"
      ],
      "sponsor": "REGENXBIO Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "MALE",
        "summary": "Male only"
      },
      "enrollment_count": 66,
      "start_date": "2024-05-08",
      "completion_date": "2029-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-24",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 5,
      "location_summary": "Little Rock, Arkansas • Palo Alto, California • Chicago, Illinois + 2 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06491927"
    },
    {
      "nct_id": "NCT01653392",
      "title": "BioThrax® (Anthrax) Vaccine in Pregnancy Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy Complications",
        "Pregnancy Outcome",
        "Congenital Abnormalities"
      ],
      "interventions": [
        {
          "name": "Observational Intervention",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Emergent BioSolutions",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 98,
      "start_date": "2012-07",
      "completion_date": "2020-02",
      "has_results": false,
      "last_update_posted_date": "2024-03-15",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01653392"
    },
    {
      "nct_id": "NCT04155892",
      "title": "Evaluation of Extubation Criteria in Children With Upper Respiratory Infection (URI)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Upper Respiratory Tract Infections"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "7 Years",
        "sex": "ALL",
        "summary": "Up to 7 Years"
      },
      "enrollment_count": 760,
      "start_date": "2019-12-04",
      "completion_date": "2025-07-03",
      "has_results": false,
      "last_update_posted_date": "2026-01-16",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04155892"
    },
    {
      "nct_id": "NCT00615862",
      "title": "Relationship Between Alcohol Use Disorders and Cortisol Levels in Patients With Sepsis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sepsis",
        "Alcoholism"
      ],
      "interventions": [
        {
          "name": "Observational study; no interventions",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2008-03",
      "completion_date": "2009-05",
      "has_results": false,
      "last_update_posted_date": "2012-02-22",
      "last_synced_at": "2026-10-10T03:09:35.254Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00615862"
    }
  ]
}