{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=9",
    "query": {
      "intervention": "No intervention (observational study)",
      "page": 9
    },
    "page_size": 10
  },
  "pagination": {
    "page": 9,
    "page_size": 10,
    "total_count": 917,
    "total_pages": 92,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=10&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=No+intervention+%28observational+study%29&page=8&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-18T12:50:55.499Z",
  "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": "NCT06129864",
      "title": "A Global Study of Volrustomig (MEDI5752) for Participants With Unresected Locally Advanced Head and Neck Squamous Cell Carcinoma Following Definitive Concurrent Chemoradiotherapy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Locally Advanced Head and Neck Squamous Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "volrustomig",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "130 Years",
        "sex": "ALL",
        "summary": "18 Years to 130 Years"
      },
      "enrollment_count": 1145,
      "start_date": "2023-12-14",
      "completion_date": "2031-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-09-30",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 69,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Prescott Valley, Arizona + 61 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Prescott Valley",
          "state": "Arizona"
        },
        {
          "city": "Springdale",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06129864"
    },
    {
      "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": "2026-10-18T12:50:55.499Z",
      "location_count": 1,
      "location_summary": "Valhalla, New York",
      "locations": [
        {
          "city": "Valhalla",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05629533"
    },
    {
      "nct_id": "NCT02891538",
      "title": "Chemopreventive Effects of Epigallocatechin Gallate (EGCG) in Colorectal Cancer (CRC) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Colon Cancer"
      ],
      "interventions": [
        {
          "name": "Epigallocatechin gallate (EGCG)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center at San Antonio",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 51,
      "start_date": "2017-01-31",
      "completion_date": "2025-09-09",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02891538"
    },
    {
      "nct_id": "NCT04239391",
      "title": "Hemoglobin Maintenance in Pediatric ESRD (End-stage Renal Disease) Patients by Ferric Pyrophosphate Citrate (FPC)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "End Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "Triferic",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rockwell Medical Technologies, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Months to 17 Years"
      },
      "enrollment_count": 150,
      "start_date": "2020-09-01",
      "completion_date": "2023-11-01",
      "has_results": false,
      "last_update_posted_date": "2021-04-21",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 8,
      "location_summary": "Loma Linda, California • Washington D.C., District of Columbia • Indianapolis, Indiana + 5 more",
      "locations": [
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04239391"
    },
    {
      "nct_id": "NCT00550108",
      "title": "Management of Incidentally Discovered Pancreatic Cysts",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pancreatic Cyst"
      ],
      "interventions": [
        {
          "name": "Ethanol lavage",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "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": 0,
      "start_date": "2007-10",
      "completion_date": "2012-10",
      "has_results": false,
      "last_update_posted_date": "2008-06-26",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00550108"
    },
    {
      "nct_id": "NCT02057510",
      "title": "Observational Study of Dental Outcomes in Head and Neck Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Head and Neck Cancer",
        "Dental Disease",
        "Xerostomia",
        "Osteoradionecrosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 613,
      "start_date": "2014-02",
      "completion_date": "2020-01-28",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 6,
      "location_summary": "Farmington, Connecticut • Boston, Massachusetts • New York, New York + 3 more",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02057510"
    },
    {
      "nct_id": "NCT00723658",
      "title": "S0629, Observation or Combination Chemotherapy, Bortezomib, Thalidomide, and Rituximab Followed By Two Autologous Peripheral Blood Stem Cell Transplants in Treating Patients With Waldenstrom Macroglobulinemia",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma"
      ],
      "interventions": [
        {
          "name": "rituximab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "bortezomib",
          "type": "DRUG"
        },
        {
          "name": "carmustine",
          "type": "DRUG"
        },
        {
          "name": "cisplatin",
          "type": "DRUG"
        },
        {
          "name": "cyclophosphamide",
          "type": "DRUG"
        },
        {
          "name": "cytarabine",
          "type": "DRUG"
        },
        {
          "name": "dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "doxorubicin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "etoposide",
          "type": "DRUG"
        },
        {
          "name": "melphalan",
          "type": "DRUG"
        },
        {
          "name": "thalidomide",
          "type": "DRUG"
        },
        {
          "name": "autologous-autologous tandem hematopoietic stem cell transplantation",
          "type": "PROCEDURE"
        },
        {
          "name": "peripheral blood stem cell transplantation",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "SWOG Cancer Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2008-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-03-06",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 29,
      "location_summary": "Hartford, Connecticut • Beech Grove, Indiana • Richmond, Indiana + 21 more",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "Beech Grove",
          "state": "Indiana"
        },
        {
          "city": "Richmond",
          "state": "Indiana"
        },
        {
          "city": "Lawrence",
          "state": "Kansas"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00723658"
    },
    {
      "nct_id": "NCT00957840",
      "title": "Intraventricular Hemorrhage and Post Hemorrhagic Ventricular Dilation: Natural Course, Treatment, and Outcome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Intraventricular Hemorrhage",
        "Premature Infants"
      ],
      "interventions": [
        {
          "name": "NIRS, aEEG, and CSF concentration of biomarkers",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "1 Year",
        "sex": "ALL",
        "summary": "Up to 1 Year"
      },
      "enrollment_count": 63,
      "start_date": "2009-07",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2015-05-06",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00957840"
    },
    {
      "nct_id": "NCT02028559",
      "title": "Safety and Effectiveness of the Ultrasonic Propulsion of Kidney Stones",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Stones",
        "Nephrolithiasis",
        "Urolithiasis"
      ],
      "interventions": [
        {
          "name": "Propulse 1 with C5-2 probe",
          "type": "DEVICE"
        },
        {
          "name": "Propulse 1 with SC-X probe",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 172,
      "start_date": "2013-12-17",
      "completion_date": "2026-05-31",
      "has_results": true,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 2,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02028559"
    },
    {
      "nct_id": "NCT06284213",
      "title": "Biomarkers for Vascular Contributions to Cognitive Impairment and Dementia Consortium",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cognitive Impairment",
        "Dementia"
      ],
      "interventions": [
        {
          "name": "No interventions",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "60 Years to 90 Years"
      },
      "enrollment_count": 1892,
      "start_date": "2021-09-29",
      "completion_date": "2027-07",
      "has_results": false,
      "last_update_posted_date": "2025-01-29",
      "last_synced_at": "2026-10-18T12:50:55.499Z",
      "location_count": 17,
      "location_summary": "Los Angeles, California • Sacramento, California • San Francisco, California + 12 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Sylmar",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06284213"
    }
  ]
}