{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study&page=7",
    "query": {
      "intervention": "Observational study",
      "page": 7
    },
    "page_size": 10
  },
  "pagination": {
    "page": 7,
    "page_size": 10,
    "total_count": 4385,
    "total_pages": 439,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study&page=8&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Observational+study&page=6&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T11:57:53.086Z",
  "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": "NCT07306338",
      "title": "Patient Interest in an Integrative Oncology Program at USC Norris Cancer Center: A Single-Institution Needs Assessment",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hematopoietic and Lymphatic System Neoplasm",
        "Malignant Solid Neoplasm"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2025-12-15",
      "completion_date": "2028-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-27",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07306338"
    },
    {
      "nct_id": "NCT07250958",
      "title": "Dome-Only Aneurysm Coiling in Severe Aneurysmal Subarachnoid Hemorrhage",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Aneurysmal Subarachnoid Hemorrhage"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Louisville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2026-03-12",
      "completion_date": "2027-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-11",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07250958"
    },
    {
      "nct_id": "NCT01287247",
      "title": "Trial Evaluating Xeomin® (incobotulinumtoxinA) for Cervical Dystonia or Blepharospasm in the United States",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cervical Dystonia",
        "Blepharospasm"
      ],
      "interventions": [
        {
          "name": "Xeomin®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merz North America, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 688,
      "start_date": "2011-02",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2015-04-10",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 70,
      "location_summary": "Cullman, Alabama • Scottsdale, Arizona • Tucson, Arizona + 60 more",
      "locations": [
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01287247"
    },
    {
      "nct_id": "NCT06552338",
      "title": "Wellness of Osteopathic Medical Students Throughout Their Training (Well-COM)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Students, Medical"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Sam Houston State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 650,
      "start_date": "2025-12-07",
      "completion_date": "2044-12",
      "has_results": false,
      "last_update_posted_date": "2025-05-18",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 1,
      "location_summary": "Conroe, Texas",
      "locations": [
        {
          "city": "Conroe",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06552338"
    },
    {
      "nct_id": "NCT05050669",
      "title": "Natural History Study of ENPP1 Deficiency and the Early-onset Form of ABCC6 Deficiency",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ectonucleotide Pyrophosphatase/phosphodiesterase1 Deficiency",
        "Generalized Arterial Calcification of Infancy",
        "Autosomal Recessive Hypophosphatemic Rickets",
        "Adenosine Triphosphate Binding Cassette Transporter Protein Subfamily C Member 6"
      ],
      "interventions": [
        {
          "name": "No Intervention for this observational study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Inozyme Pharma",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "2 Years to 18 Years"
      },
      "enrollment_count": 12,
      "start_date": "2022-06-28",
      "completion_date": "2024-06-26",
      "has_results": false,
      "last_update_posted_date": "2026-07-06",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 3,
      "location_summary": "Boston, Massachusetts • Philadelphia, Pennsylvania • Fort Worth, Texas",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05050669"
    },
    {
      "nct_id": "NCT05625529",
      "title": "ExoLuminate Study for Early Detection of Pancreatic Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pancreas Cancer",
        "Exosomes",
        "Extracellular Vesicles",
        "Pancreatic Neoplasms"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Biological Dynamics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2022-12-19",
      "completion_date": "2028-01-01",
      "has_results": false,
      "last_update_posted_date": "2025-07-28",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05625529"
    },
    {
      "nct_id": "NCT07191327",
      "title": "Testing Personalized High-Definition Transcranial Direct Current Stimulation (HD-tDCS) as a Treatment of Posterior Cortical Atrophy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Posterior Cortical Atrophy"
      ],
      "interventions": [
        {
          "name": "HD-tDCS sessions",
          "type": "DEVICE"
        },
        {
          "name": "Sham HD-tDCS sessions",
          "type": "DEVICE"
        },
        {
          "name": "HD-tDCS sessions - Open-label (after randomized treatment)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2026-01-28",
      "completion_date": "2029-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07191327"
    },
    {
      "nct_id": "NCT06434727",
      "title": "Evaluating Intuitive 3D Models in Preoperative Surgical Planning for Thoracic and Colorectal Procedures.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Thoracic",
        "Colorectal Disorders"
      ],
      "interventions": [
        {
          "name": "observational study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Intuitive Surgical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80,
      "start_date": "2024-09-30",
      "completion_date": "2025-11-09",
      "has_results": false,
      "last_update_posted_date": "2026-03-03",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 4,
      "location_summary": "Baton Rouge, Louisiana • Manhasset, New York • Columbus, Ohio + 1 more",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        },
        {
          "city": "Manhasset",
          "state": "New York"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06434727"
    },
    {
      "nct_id": "NCT04818866",
      "title": "International Study of Inflammation in COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid19",
        "Outcome, Fatal",
        "Respiratory Failure",
        "Acute Kidney Injury",
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "SuPAR, C-reactive protein, Ferritin, D-Dimer, Procalcitonin, Interleukin-6, Lactate Dehydrogenase",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4463,
      "start_date": "2020-02-01",
      "completion_date": "2022-12-01",
      "has_results": false,
      "last_update_posted_date": "2023-10-31",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04818866"
    },
    {
      "nct_id": "NCT05258942",
      "title": "MyLeukoMAP™ Genomic Survival Prediction Assay Pivotal Clinical Study",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "LeukoLifeDx Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2022-07-01",
      "completion_date": "2023-08",
      "has_results": false,
      "last_update_posted_date": "2022-10-27",
      "last_synced_at": "2026-10-17T11:57:53.086Z",
      "location_count": 3,
      "location_summary": "New Haven, Connecticut • Orlando, Florida • Kansas City, Missouri",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05258942"
    }
  ]
}