{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Obstructive&page=21",
    "query": {
      "condition": "Obstructive",
      "page": 21
    },
    "page_size": 10
  },
  "pagination": {
    "page": 21,
    "page_size": 10,
    "total_count": 4088,
    "total_pages": 409,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Obstructive&page=22&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Obstructive&page=20&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-16T09:55:27.649Z",
  "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": "NCT03444298",
      "title": "A Study of Gamma Tocopherol-enriched Supplement on Lower Airway Responses to Inhaled Wood Smoke in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Airway Inflammation",
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Gamma Tocopherol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 16,
      "start_date": "2018-06-08",
      "completion_date": "2023-03-06",
      "has_results": true,
      "last_update_posted_date": "2024-02-05",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03444298"
    },
    {
      "nct_id": "NCT01366521",
      "title": "Dose Ranging Pharmacokinetics and Pharmacodynamics Study With Mepolizumab in Asthma Patients With Elevated Eosinophils",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Mepolizumab",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 70,
      "start_date": "2011-02",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2017-01-11",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 2,
      "location_summary": "Winston-Salem, North Carolina • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01366521"
    },
    {
      "nct_id": "NCT01760304",
      "title": "Changes in Cardiac Function in COPD Patients After Administration of Budesonide/Formoterol (Symbicort®) Versus Placebo",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease (COPD)"
      ],
      "interventions": [
        {
          "name": "Budesonide / Formoterol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 5,
      "start_date": "2012-01",
      "completion_date": "2012-10",
      "has_results": true,
      "last_update_posted_date": "2017-06-14",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01760304"
    },
    {
      "nct_id": "NCT00358358",
      "title": "Chronic Obstructive Pulmonary Disease Endpoints Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "Fluticasone Propionate/Salmeterol 500/50mcg combination",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone Propionate 500mcg",
          "type": "DRUG"
        },
        {
          "name": "Salmeterol 50mcg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 163,
      "start_date": "2006-03",
      "completion_date": "2007-02",
      "has_results": false,
      "last_update_posted_date": "2017-01-20",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 4,
      "location_summary": "Absecon, New Jersey • Charleston, South Carolina • Greenville, South Carolina + 1 more",
      "locations": [
        {
          "city": "Absecon",
          "state": "New Jersey"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        },
        {
          "city": "Greenville",
          "state": "South Carolina"
        },
        {
          "city": "Spartanburg",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00358358"
    },
    {
      "nct_id": "NCT05341726",
      "title": "BREATHE: An Efficacy-implementation Trial Among Black Adults With Uncontrolled Asthma",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "BREATHE Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "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": "2023-01-19",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2026-01-30",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 2,
      "location_summary": "Beacon, New York • Brooklyn, New York",
      "locations": [
        {
          "city": "Beacon",
          "state": "New York"
        },
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05341726"
    },
    {
      "nct_id": "NCT02687815",
      "title": "Vitamin D to Prevent Severe Asthma Exacerbations (Vit-D-Kids Asthma)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "vitamin D3 4000 IU",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Juan Celedon, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "6 Years to 16 Years"
      },
      "enrollment_count": 192,
      "start_date": "2016-02-22",
      "completion_date": "2019-09-17",
      "has_results": true,
      "last_update_posted_date": "2021-08-12",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 7,
      "location_summary": "San Francisco, California • Denver, Colorado • Boston, Massachusetts + 4 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02687815"
    },
    {
      "nct_id": "NCT02725008",
      "title": "Trial of One Versus Two Doses of Dexamethasone for Pediatric Asthma Exacerbation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Geoffrey W Jara-Almonte",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Months",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "18 Months to 20 Years"
      },
      "enrollment_count": 99,
      "start_date": "2015-11",
      "completion_date": "2017-11",
      "has_results": true,
      "last_update_posted_date": "2019-02-27",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 1,
      "location_summary": "Brooklyn, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02725008"
    },
    {
      "nct_id": "NCT01396278",
      "title": "Study on BI 54903 (Inhaled Corticosteroid) Administered Twice Daily Via Respimat Inhaler in Patients With Asthma Inadequately Controlled on Medium Dose Inhaled Corticosteroid (ICS).",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone propionate",
          "type": "DRUG"
        },
        {
          "name": "BI 54903",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boehringer Ingelheim",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "12 Years to 65 Years"
      },
      "enrollment_count": 9,
      "start_date": "2011-07-01",
      "completion_date": "2011-12-14",
      "has_results": true,
      "last_update_posted_date": "2025-02-07",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 37,
      "location_summary": "Fountain Valley, California • Fullerton, California • Long Beach, California + 33 more",
      "locations": [
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "Palmdale",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01396278"
    },
    {
      "nct_id": "NCT04545385",
      "title": "A Study to Test if TEV-48574 is Effective in Relieving Asthma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "TEV-48574",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Teva Branded Pharmaceutical Products R&D, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65,
      "start_date": "2020-10-07",
      "completion_date": "2022-01-17",
      "has_results": true,
      "last_update_posted_date": "2023-03-13",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 55,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Bakersfield, California + 47 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04545385"
    },
    {
      "nct_id": "NCT01016847",
      "title": "Moderate to Persistent Asthma in the Obese Subject",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Montelukast",
          "type": "DRUG"
        },
        {
          "name": "Sugar pill",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 38,
      "start_date": "2010-01",
      "completion_date": "2013-11",
      "has_results": true,
      "last_update_posted_date": "2014-11-17",
      "last_synced_at": "2026-10-16T09:55:27.649Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01016847"
    }
  ]
}