{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Collar+On",
    "query": {
      "intervention": "Collar On"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 19,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Collar+On&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T21:58:23.388Z",
  "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": "NCT00748059",
      "title": "The Pathophysiology of Orthostatic Hypotension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Autonomic Nervous System Diseases",
        "Orthostatic Hypotension",
        "Dopamine Beta-Hydroxylase Deficiency",
        "Orthostatic Intolerance"
      ],
      "interventions": [
        {
          "name": "Standing or upright tilt",
          "type": "PROCEDURE"
        },
        {
          "name": "Microneurography",
          "type": "PROCEDURE"
        },
        {
          "name": "QSweat",
          "type": "PROCEDURE"
        },
        {
          "name": "neck cuff stimulation",
          "type": "DEVICE"
        },
        {
          "name": "phenylephrine,isoproterenol,nitroprusside,propranolol,edrophonium,atropine,tyramine",
          "type": "DRUG"
        },
        {
          "name": "clonidine,yohimbine,metoclopramide,alpha-methyldopa",
          "type": "DRUG"
        },
        {
          "name": "BodPod",
          "type": "PROCEDURE"
        },
        {
          "name": "Eye exam",
          "type": "PROCEDURE"
        },
        {
          "name": "Sleep study",
          "type": "PROCEDURE"
        },
        {
          "name": "Pain response testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Metabolic chamber",
          "type": "PROCEDURE"
        },
        {
          "name": "Brain function studies",
          "type": "PROCEDURE"
        },
        {
          "name": "Bicycle Exercise Test",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "12 Years to 70 Years"
      },
      "enrollment_count": 10,
      "start_date": "1996-12",
      "completion_date": "2020-12",
      "has_results": false,
      "last_update_posted_date": "2021-05-12",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00748059"
    },
    {
      "nct_id": "NCT01720017",
      "title": "Impact of Manikin Training on Airtraq Avant Learning Curve in Predicted Difficult Airways",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Education",
        "Training",
        "Manikin"
      ],
      "interventions": [
        {
          "name": "Preclinical Manikin Training",
          "type": "OTHER"
        },
        {
          "name": "Inservice Training",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2012-10",
      "completion_date": "2014-05",
      "has_results": false,
      "last_update_posted_date": "2015-10-02",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01720017"
    },
    {
      "nct_id": "NCT05441540",
      "title": "Internal Jugular Vein Compression Collar for Novel Symptomatic Treatment of Venous Pulsatile Tinnitus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulsatile Tinnitus"
      ],
      "interventions": [
        {
          "name": "Internal Jugular Vein Compression Collar",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2022-10-27",
      "completion_date": "2023-07-30",
      "has_results": true,
      "last_update_posted_date": "2024-04-16",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05441540"
    },
    {
      "nct_id": "NCT03349125",
      "title": "Study: C-Collar and Dysphagia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dysphagia"
      ],
      "interventions": [
        {
          "name": "Collar On",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Collar Off",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 23,
      "start_date": "2013-09-17",
      "completion_date": "2018-04-05",
      "has_results": false,
      "last_update_posted_date": "2019-10-02",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03349125"
    },
    {
      "nct_id": "NCT07789288",
      "title": "Hard Cervical Collar Use Following Posterior Cervical Fusion",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Stenosis Cervical",
        "Radiculopathy, Cervical Region",
        "Posterior Cervical Fusion",
        "Spondylosis, Cervical"
      ],
      "interventions": [
        {
          "name": "Hard Cervical Collar",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Georgetown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2026-06-03",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 2,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07789288"
    },
    {
      "nct_id": "NCT02767843",
      "title": "Pilot Study of cNEP for the Treatment of Snoring",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Snoring"
      ],
      "interventions": [
        {
          "name": "continuous negative external pressure (cNEP)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Sommetrics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 4,
      "start_date": "2016-05",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2024-05-07",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "Alameda, California",
      "locations": [
        {
          "city": "Alameda",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02767843"
    },
    {
      "nct_id": "NCT06826781",
      "title": "Evaluating Q-Collar Effects on Brain Blood Flow Control During Exercise",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Q30 Q-Collar",
          "type": "DEVICE"
        },
        {
          "name": "Not wearing Q-Collar",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Spaulding Rehabilitation Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 20,
      "start_date": "2025-07-23",
      "completion_date": "2026-08-23",
      "has_results": false,
      "last_update_posted_date": "2025-10-27",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06826781"
    },
    {
      "nct_id": "NCT04760782",
      "title": "PTH Analog Type II Odontoid Fracture",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Odontoid Fracture"
      ],
      "interventions": [
        {
          "name": "Abaloparatide",
          "type": "DRUG"
        },
        {
          "name": "Hard collar immobilization",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "David Lunardini",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2022-05-18",
      "completion_date": "2023-08-14",
      "has_results": true,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "Burlington, Vermont",
      "locations": [
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04760782"
    },
    {
      "nct_id": "NCT05135117",
      "title": "Impact of Neck Cooling Collar on Exercise Performance in the Heat",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hyperthermia"
      ],
      "interventions": [
        {
          "name": "NeuroRescue Cooling Collar",
          "type": "OTHER"
        },
        {
          "name": "Ice Towel",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Connecticut",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "MALE",
        "summary": "18 Years to 35 Years · Male only"
      },
      "enrollment_count": 12,
      "start_date": "2021-08-31",
      "completion_date": "2021-11-23",
      "has_results": false,
      "last_update_posted_date": "2023-02-03",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "Storrs, Connecticut",
      "locations": [
        {
          "city": "Storrs",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05135117"
    },
    {
      "nct_id": "NCT05359575",
      "title": "Three Instructional Interventions for Prehospital Cervical Spinal Immobilization by Laypeople",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cervical Vertebra Injury",
        "Cervical Vertebra Fracture"
      ],
      "interventions": [
        {
          "name": "Audio kit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Instructional flashcard (version 1)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "In-person training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Instructional flashcard (version 2)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 265,
      "start_date": "2022-02-07",
      "completion_date": "2022-04-29",
      "has_results": false,
      "last_update_posted_date": "2022-07-27",
      "last_synced_at": "2026-09-06T21:58:23.388Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05359575"
    }
  ]
}