{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Constriction&page=25",
    "query": {
      "condition": "Constriction",
      "page": 25
    },
    "page_size": 10
  },
  "pagination": {
    "page": 25,
    "page_size": 10,
    "total_count": 1008,
    "total_pages": 101,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Constriction&page=26&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Constriction&page=24&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T12:51:03.663Z",
  "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": "NCT06651138",
      "title": "Radiation Exposure Reduction Protocol for Minimally Invasive Lumbar Decompression (mild) Techniques",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lumbar Spinal Stenosis",
        "Radiation Exposure"
      ],
      "interventions": [
        {
          "name": "Fluoroscopy",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "RADIATION"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2020-06-09",
      "completion_date": "2022-06-14",
      "has_results": false,
      "last_update_posted_date": "2024-10-21",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06651138"
    },
    {
      "nct_id": "NCT00576693",
      "title": "Stenting vs. Aggressive Medical Management for Preventing Recurrent Stroke in Intracranial Stenosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Ischemic Stroke"
      ],
      "interventions": [
        {
          "name": "intracranial angioplasty and stenting",
          "type": "DEVICE"
        },
        {
          "name": "intensive medical management",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "30 Years to 80 Years"
      },
      "enrollment_count": 451,
      "start_date": "2008-10",
      "completion_date": "2013-04",
      "has_results": true,
      "last_update_posted_date": "2018-05-30",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 50,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Glendale, California + 38 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00576693"
    },
    {
      "nct_id": "NCT05481814",
      "title": "CPX in Paradoxical Low Flow Aortic Stenosis",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Aortic Valve Stenosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 0,
      "start_date": "2017-09-30",
      "completion_date": "2022-07-01",
      "has_results": false,
      "last_update_posted_date": "2022-08-01",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05481814"
    },
    {
      "nct_id": "NCT03048955",
      "title": "Assessing Superion Clinical Endpoints vs. Decompression",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Stenosis, Lumbar Region With Neurogenic Claudication"
      ],
      "interventions": [
        {
          "name": "Superion® IDS",
          "type": "DEVICE"
        },
        {
          "name": "Direct decompression Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "VertiFlex, Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2017-02-08",
      "completion_date": "2025-07-31",
      "has_results": false,
      "last_update_posted_date": "2019-06-12",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 5,
      "location_summary": "Birmingham, Alabama • Carlsbad, California • Celebration, Florida + 2 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Carlsbad",
          "state": "California"
        },
        {
          "city": "Celebration",
          "state": "Florida"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        },
        {
          "city": "Willow Grove",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03048955"
    },
    {
      "nct_id": "NCT02063035",
      "title": "Effectiveness Study of the Drug Tranexamic Acid to Reduce Post-surgery Blood Loss in Spinal Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Lumbar Spinal Stenosis",
        "Thoracic Spinal Stenosis"
      ],
      "interventions": [
        {
          "name": "Tranexamic Acid",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 29,
      "start_date": "2012-08",
      "completion_date": "2015-04-22",
      "has_results": true,
      "last_update_posted_date": "2017-06-08",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02063035"
    },
    {
      "nct_id": "NCT00268008",
      "title": "Children and Adolescents Receiving Mechanical and Prosthetic Valves",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Congenital Disorders"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Children's Healthcare of Atlanta",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 300,
      "start_date": "1976-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2007-05-07",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00268008"
    },
    {
      "nct_id": "NCT04131127",
      "title": "Sentinel Low Risk Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Aortic Valve Stenosis"
      ],
      "interventions": [
        {
          "name": "Sentinel Device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CVPath Institute Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 50,
      "start_date": "2020-01-07",
      "completion_date": "2020-08-19",
      "has_results": false,
      "last_update_posted_date": "2020-10-19",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 4,
      "location_summary": "New York, New York • Charlotte, North Carolina • Cleveland, Ohio + 1 more",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Wormleysburg",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04131127"
    },
    {
      "nct_id": "NCT00287573",
      "title": "Randomized Trial Evaluating Slow-Release Formulation TAXUS Paclitaxel-Eluting Coronary Stent in the Treatment of In-Stent Restenosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Coronary Restenosis"
      ],
      "interventions": [
        {
          "name": "TAXUS Express2",
          "type": "DEVICE"
        },
        {
          "name": "Brachytherapy (beta source)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Boston Scientific Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 488,
      "start_date": "2003-06",
      "completion_date": "2010-01",
      "has_results": false,
      "last_update_posted_date": "2010-08-06",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 40,
      "location_summary": "Birmingham, Alabama • La Jolla, California • Sacramento, California + 35 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00287573"
    },
    {
      "nct_id": "NCT02692846",
      "title": "WS-SAVE Study (Williams Syndrome Skin and Vessel Elasticity Study)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Williams Syndrome",
        "Cardiovascular Disease",
        "Multisystem Developmental Disorder",
        "Elastin Gene Deletion",
        "Hypertension"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "1 Year to 70 Years"
      },
      "enrollment_count": 43,
      "start_date": "2017-03-03",
      "completion_date": "2017-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-10-13",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02692846"
    },
    {
      "nct_id": "NCT00589810",
      "title": "Whole Genome Association Study to Identify and Validate Genes for Restenosis: CardioGene Validation Proposal",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coronary Restenosis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 761,
      "start_date": "2007-08",
      "completion_date": "2011-11",
      "has_results": false,
      "last_update_posted_date": "2017-03-24",
      "last_synced_at": "2026-10-24T12:51:03.663Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00589810"
    }
  ]
}