{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention%2C+this+is+an+observational+study",
    "query": {
      "intervention": "No intervention, this is an observational study"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 189,
    "total_pages": 19,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention%2C+this+is+an+observational+study&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-05T05:03:33.651Z",
  "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": "NCT04899037",
      "title": "Pilot Study to Evaluate the Long-term Chronic Care of Patients Who Could or do Utilize an Osseointegrated Device (OID)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hearing Loss, Conductive",
        "Hearing Loss, Mixed",
        "Deafness, Unilateral"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of South Florida",
      "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": 50,
      "start_date": "2021-01-29",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-09",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04899037"
    },
    {
      "nct_id": "NCT05586243",
      "title": "MAGNETIC RESONANCE SPECTROSCOPY BIOMARKERS IN TYPE 3 GAUCHER DISEASE (GD3)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Gaucher Disease, Type 3"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 5,
      "start_date": "2023-01-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05586243"
    },
    {
      "nct_id": "NCT07250815",
      "title": "A Study on Infections in Adults With Ulcerative Colitis/Crohn's Disease",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ulcerative Colitis",
        "Crohn's Disease"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Takeda",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 23900,
      "start_date": "2026-09-21",
      "completion_date": "2026-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07250815"
    },
    {
      "nct_id": "NCT04300998",
      "title": "Study of CAR-T Therapy in Older Patients",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lymphoma",
        "Refractory B-Cell Lymphoma",
        "Lymphoma, B-Cell",
        "DLBCL NOS",
        "High-grade B-cell Lymphoma",
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Activities of Daily Living/ADLs",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Instrumental Activity of Daily Living",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Timed Up and Go",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognition",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Geriatric Depression Scale",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Social Support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Brief Test of Attention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Trail Making Test",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Controlled Oral Word Association Test",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Hopkins Verbal Learning Test-Revised",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Blood draw",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 154,
      "start_date": "2020-03-04",
      "completion_date": "2027-03-04",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04300998"
    },
    {
      "nct_id": "NCT05295277",
      "title": "Validation of Optical Genome Mapping for the Identification of Constitutional Genomic Variants in a Postnatal Cohort",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Developmental Disability",
        "Intellectual Disability",
        "Autism Spectrum Disorder",
        "Congenital Anomaly",
        "Fragile X Syndrome",
        "Facioscapulohumeral Muscular Dystrophy 1"
      ],
      "interventions": [
        {
          "name": "Standard of care genetic testing group",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Bionano Genomics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1000,
      "start_date": "2020-11-30",
      "completion_date": "2024-06-30",
      "has_results": false,
      "last_update_posted_date": "2023-08-07",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 8,
      "location_summary": "Atlanta, Georgia • Augusta, Georgia • Iowa City, Iowa + 5 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "West Henrietta",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05295277"
    },
    {
      "nct_id": "NCT06833268",
      "title": "Real-world Outcomes of Patients With HER2+ Metastatic Breast Cancer After Treatment With Trastuzumab Deruxtecan",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HER2-positive Breast Cancer"
      ],
      "interventions": [
        {
          "name": "No drug",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Daiichi Sankyo",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 228,
      "start_date": "2025-01-20",
      "completion_date": "2025-06-16",
      "has_results": false,
      "last_update_posted_date": "2025-07-08",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06833268"
    },
    {
      "nct_id": "NCT04323839",
      "title": "COVID-19 PRIORITY (Pregnancy CoRonavIrus Outcomes RegIsTrY)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy",
        "Coronavirus",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Pregnant women under investigation for Coronavirus or diagnosed with COVID-19",
          "type": "OTHER"
        },
        {
          "name": "Postpartum women under investigation for Coronavirus or diagnosed with COVID-19",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "13 Years and older · Female only"
      },
      "enrollment_count": 1333,
      "start_date": "2020-03-20",
      "completion_date": "2022-04-26",
      "has_results": false,
      "last_update_posted_date": "2024-05-08",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04323839"
    },
    {
      "nct_id": "NCT04054232",
      "title": "Evaluation of an Electronic Health Record-based Screening Tool for Peripheral Artery Disease",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Peripheral Artery Disease",
        "Peripheral Vascular Disease"
      ],
      "interventions": [
        {
          "name": "High PAD risk Alert",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 50,
      "start_date": "2023-12",
      "completion_date": "2024-06",
      "has_results": false,
      "last_update_posted_date": "2022-07-12",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04054232"
    },
    {
      "nct_id": "NCT01097837",
      "title": "Epilepsy Birth Control Registry",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Epilepsy"
      ],
      "interventions": [
        {
          "name": "Non-interventional",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Neuroendocrine Associates P.C.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "47 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 47 Years · Female only"
      },
      "enrollment_count": 1000,
      "start_date": "2010-03",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2015-10-16",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 2,
      "location_summary": "Wellesley, Massachusetts • New York, New York",
      "locations": [
        {
          "city": "Wellesley",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01097837"
    },
    {
      "nct_id": "NCT06576856",
      "title": "Salivary Markers in Periodontal Disorders",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Periodontal Disease, Staging, Salivary Markers, Diagnosis"
      ],
      "interventions": [
        {
          "name": "This is an observational study, no intervention is anticipated.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Midwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "30 Years to 99 Years"
      },
      "enrollment_count": 106,
      "start_date": "2021-11-06",
      "completion_date": "2024-10-10",
      "has_results": false,
      "last_update_posted_date": "2025-10-16",
      "last_synced_at": "2026-10-05T05:03:33.651Z",
      "location_count": 1,
      "location_summary": "Downers Grove, Illinois",
      "locations": [
        {
          "city": "Downers Grove",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06576856"
    }
  ]
}