{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention%2C+observational+study+only",
    "query": {
      "intervention": "No intervention, observational study only"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 132,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention%2C+observational+study+only&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-17T21:27:39.190Z",
  "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": "NCT06744790",
      "title": "Advanced Prediction of Respiratory Depression Episode Using the Linshom Continuous Predictive Respiratory Sensor",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Post Surgical Respiratory Failure",
        "Respiratory Complication"
      ],
      "interventions": [
        {
          "name": "Linshom Continuous Predictive Respiratory Monitoring",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Linshom Medical, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 320,
      "start_date": "2023-06-21",
      "completion_date": "2025-06-28",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06744790"
    },
    {
      "nct_id": "NCT05554510",
      "title": "Pulse Oximetry Errors in Hospitalized Patients Across Varying Skin Pigmentation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hypoxemia",
        "Pulse Oximetry",
        "Skin Pigment"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 757,
      "start_date": "2022-08-14",
      "completion_date": "2024-08-20",
      "has_results": false,
      "last_update_posted_date": "2025-02-17",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05554510"
    },
    {
      "nct_id": "NCT00576888",
      "title": "Registry for Vascular Anomalies Associated With Coagulopathy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multifocal Lymphangioendotheliomatosis With Thrombocytopenia",
        "Cutaneovisceral Angiomatosis With Thrombocytopenia",
        "Vascular Anomaly With Thrombocytopenia",
        "Hemangiomas"
      ],
      "interventions": [
        {
          "name": "no intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Medical College of Wisconsin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 30,
      "start_date": "2007-11",
      "completion_date": "2019-04-05",
      "has_results": false,
      "last_update_posted_date": "2019-09-16",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00576888"
    },
    {
      "nct_id": "NCT04001413",
      "title": "Therapy for High-Risk HPV 16-Positive Oropharynx Cancer Patients",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HPV Positive Oropharyngeal Squamous Cell Carcinoma",
        "Oropharynx Cancer",
        "HPV-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "MEDI0457",
          "type": "DRUG"
        },
        {
          "name": "Durvalumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-09-17",
      "completion_date": "2021-03-25",
      "has_results": false,
      "last_update_posted_date": "2022-07-29",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 4,
      "location_summary": "Baltimore, Maryland • New York, New York • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04001413"
    },
    {
      "nct_id": "NCT02909608",
      "title": "Actigraphy in Pediatric Pulmonary Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pediatric Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "No interventions / observations only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "14 Years",
        "sex": "ALL",
        "summary": "8 Years to 14 Years"
      },
      "enrollment_count": 116,
      "start_date": "2016-10-07",
      "completion_date": "2020-04-02",
      "has_results": false,
      "last_update_posted_date": "2021-06-07",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02909608"
    },
    {
      "nct_id": "NCT03378336",
      "title": "Psoriatic Arthritis Research Collaborative: Biologic Sub-Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Psoriatic Arthritis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 171,
      "start_date": "2017-12-31",
      "completion_date": "2023-08-16",
      "has_results": true,
      "last_update_posted_date": "2025-05-09",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 4,
      "location_summary": "New York, New York • Cleveland, Ohio • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03378336"
    },
    {
      "nct_id": "NCT02392195",
      "title": "Brain Characteristics Noted Prior to and Following Treatment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Nonsynostotic Plagiocephaly"
      ],
      "interventions": [
        {
          "name": "Non-interventional",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "8 Months",
        "sex": "ALL",
        "summary": "Up to 8 Months"
      },
      "enrollment_count": 10,
      "start_date": "2013-02",
      "completion_date": "2020-09",
      "has_results": true,
      "last_update_posted_date": "2020-12-10",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02392195"
    },
    {
      "nct_id": "NCT04077164",
      "title": "Chronic Pain, Couples, & Physical Activity",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pain",
        "Fibromyalgia",
        "Osteoarthritis, Knee",
        "Osteoarthritis, Hip",
        "Osteoarthritis",
        "Ankylosing Spondylitis",
        "Rheumatoid Arthritis",
        "Chronic Low-back Pain",
        "Chronic Shoulder Pain"
      ],
      "interventions": [
        {
          "name": "No intervention, observational only.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Illinois Institute of Technology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 400,
      "start_date": "2019-04-09",
      "completion_date": "2020-12-30",
      "has_results": false,
      "last_update_posted_date": "2023-10-10",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04077164"
    },
    {
      "nct_id": "NCT01241357",
      "title": "High-Tc Susceptometer to Monitor Transfusional Iron Overload",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Transfusional Iron Overload",
        "Thalassemia Major",
        "Sickle Cell Disease",
        "Myelodysplastic Syndromes",
        "Aplastic Anemia"
      ],
      "interventions": [
        {
          "name": "Hepatic biomagnetic susceptibility measurement",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "5 Years to 80 Years"
      },
      "enrollment_count": 99,
      "start_date": "2011-03",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-09-21",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01241357"
    },
    {
      "nct_id": "NCT07223684",
      "title": "TDAP in Burn Patients (Group 2)",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sepsis",
        "Burn Injury",
        "Wound Healing",
        "Critical Illness",
        "Multiple Organ Dysfunction Syndrome"
      ],
      "interventions": [
        {
          "name": "Observational Cohort (No Intervention)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 80,
      "start_date": "2026-05-15",
      "completion_date": "2027-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-02-04",
      "last_synced_at": "2026-09-17T21:27:39.190Z",
      "location_count": 3,
      "location_summary": "Tampa, Florida • Atlanta, Georgia • Houston, Texas",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07223684"
    }
  ]
}