{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=34",
    "query": {
      "intervention": "No intervention (observational study)",
      "page": 34
    },
    "page_size": 10
  },
  "pagination": {
    "page": 34,
    "page_size": 10,
    "total_count": 919,
    "total_pages": 92,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=35&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=33&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-23T08:47:51.910Z",
  "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": "NCT05277363",
      "title": "A Study of the Natural Course of SURF1 Deficiency",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Leigh Syndrome"
      ],
      "interventions": [
        {
          "name": "None (Observational study)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Taysha Gene Therapies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "Up to 18 Years"
      },
      "enrollment_count": 0,
      "start_date": "2022-05-04",
      "completion_date": "2022-05-04",
      "has_results": false,
      "last_update_posted_date": "2022-05-20",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05277363"
    },
    {
      "nct_id": "NCT05346406",
      "title": "Comparing Peripherally Inserted Central Catheters to Long Peripheral Catheters in Pediatrics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vascular Access Device Complications"
      ],
      "interventions": [
        {
          "name": "Midline Catheter",
          "type": "DEVICE"
        },
        {
          "name": "Peripherally Inserted Central Catheter",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "2 Years to 17 Years"
      },
      "enrollment_count": 35,
      "start_date": "2022-08-10",
      "completion_date": "2023-08-10",
      "has_results": true,
      "last_update_posted_date": "2025-06-17",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05346406"
    },
    {
      "nct_id": "NCT06625684",
      "title": "Key Longitudinal Associations With Risk and Glioblastoma Outcomes",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glioblastoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": 200,
      "start_date": "2024-12-10",
      "completion_date": "2029-12-10",
      "has_results": false,
      "last_update_posted_date": "2026-01-20",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06625684"
    },
    {
      "nct_id": "NCT06989008",
      "title": "Enhancing Diabetes Care: Exposome &Amp; Sensors",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "Observational Study: Relationships Among Glucose, Physical Activity and Environmental Influences",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 20,
      "start_date": "2025-03-25",
      "completion_date": "2026-01-31",
      "has_results": false,
      "last_update_posted_date": "2025-05-25",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06989008"
    },
    {
      "nct_id": "NCT05629533",
      "title": "The Nanowear Wearable System SimpleSense Validation Trial for Cardiac Output",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Right Heart Catheterization"
      ],
      "interventions": [
        {
          "name": "SimpleSense",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Nanowear Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2023-03-08",
      "completion_date": "2025-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-09",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 1,
      "location_summary": "Valhalla, New York",
      "locations": [
        {
          "city": "Valhalla",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05629533"
    },
    {
      "nct_id": "NCT01383642",
      "title": "Physiology of Vestibular Dysfunction and Clinical Implications",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dysfunction of Vestibular System",
        "Accidental Falls",
        "Frailty"
      ],
      "interventions": [
        {
          "name": "No intervention, observational study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "70 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "70 Years to 95 Years"
      },
      "enrollment_count": 50,
      "start_date": "2010-07",
      "completion_date": "2018-06",
      "has_results": false,
      "last_update_posted_date": "2018-08-24",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01383642"
    },
    {
      "nct_id": "NCT01986686",
      "title": "Recurrence Following Nonoperative Management of 1st Episode of Hinchey II Diverticulitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diverticulitis"
      ],
      "interventions": [
        {
          "name": "Colon resection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stony Brook University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 107,
      "start_date": "2011-10",
      "completion_date": "2016-07-16",
      "has_results": true,
      "last_update_posted_date": "2017-10-18",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 1,
      "location_summary": "Stony Brook, New York",
      "locations": [
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01986686"
    },
    {
      "nct_id": "NCT04239573",
      "title": "Comparing the Clinical Impact of Pancreatic Cyst Surveillance Programs and Associated Biomarkers",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pancreatic Neoplasm"
      ],
      "interventions": [
        {
          "name": "Biopsy Procedure",
          "type": "PROCEDURE"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Endoscopic Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "Endoscopic Ultrasound-Guided Fine-Needle Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Surgical Procedure",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "ECOG-ACRIN Cancer Research Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "50 Years to 75 Years"
      },
      "enrollment_count": 770,
      "start_date": "2020-06-16",
      "completion_date": "2034-11-11",
      "has_results": false,
      "last_update_posted_date": "2026-09-04",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 413,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 294 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04239573"
    },
    {
      "nct_id": "NCT00216151",
      "title": "Zoledronic Acid in the Management of Patients With Asymptomatic/Early Stage Multiple Myeloma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Zoledronic Acid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoosier Cancer Research Network",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3,
      "start_date": "2005-06",
      "completion_date": "2007-03",
      "has_results": false,
      "last_update_posted_date": "2011-05-02",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 8,
      "location_summary": "Elkhart, Indiana • Evansville, Indiana • Indianapolis, Indiana + 3 more",
      "locations": [
        {
          "city": "Elkhart",
          "state": "Indiana"
        },
        {
          "city": "Evansville",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00216151"
    },
    {
      "nct_id": "NCT06293352",
      "title": "Real-component vs All-cement Articulating Spacers for Periprosthetic Knee Infection",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prosthetic-joint Infection",
        "Knee Infection",
        "Arthroplasty Complications",
        "Joint Infection",
        "Arthroplasty, Replacement, Knee"
      ],
      "interventions": [
        {
          "name": "All-cement articulating spacer",
          "type": "DEVICE"
        },
        {
          "name": "Durable, real-component articulating spacer",
          "type": "DEVICE"
        },
        {
          "name": "Rigid Spacer",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 153,
      "start_date": "2024-08-08",
      "completion_date": "2028-08",
      "has_results": false,
      "last_update_posted_date": "2026-08-24",
      "last_synced_at": "2026-10-23T08:47:51.910Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06293352"
    }
  ]
}