{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Obstructive&page=50",
    "query": {
      "condition": "Obstructive",
      "page": 50
    },
    "page_size": 10
  },
  "pagination": {
    "page": 50,
    "page_size": 10,
    "total_count": 4090,
    "total_pages": 409,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Obstructive&page=51&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Obstructive&page=49&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T07:32:00.667Z",
  "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": "NCT04129931",
      "title": "PrecISE (Precision Interventions for Severe and/or Exacerbation-Prone Asthma) Network Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "MCT",
          "type": "DRUG"
        },
        {
          "name": "Clazakizumab",
          "type": "DRUG"
        },
        {
          "name": "Broncho-Vaxom",
          "type": "DRUG"
        },
        {
          "name": "Imatinib Mesylate",
          "type": "DRUG"
        },
        {
          "name": "Cavosonstat",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 950,
      "start_date": "2019-12-19",
      "completion_date": "2025-03-19",
      "has_results": true,
      "last_update_posted_date": "2026-04-01",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 29,
      "location_summary": "Scottsdale, Arizona • Tucson, Arizona • Sacramento, California + 17 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04129931"
    },
    {
      "nct_id": "NCT06151405",
      "title": "Nutrition for Asthmatics",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "DGA Diet",
          "type": "OTHER"
        },
        {
          "name": "MCT Diet",
          "type": "OTHER"
        },
        {
          "name": "KETO Diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Pennington Biomedical Research Center",
      "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": 15,
      "start_date": "2024-07-17",
      "completion_date": "2027-03-01",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 1,
      "location_summary": "Baton Rouge, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06151405"
    },
    {
      "nct_id": "NCT01715844",
      "title": "L-Citrulline Supplementation Pilot Study for Overweight Late Onset Asthmatics",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "L-citrulline",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 10,
      "start_date": "2013-09-07",
      "completion_date": "2017-06-01",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01715844"
    },
    {
      "nct_id": "NCT00846014",
      "title": "Asthma Exacerbation and Helium-3 MRI",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma Exacerbation"
      ],
      "interventions": [
        {
          "name": "Helium-3",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "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": "2009-01",
      "completion_date": "2011-08",
      "has_results": false,
      "last_update_posted_date": "2012-09-20",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00846014"
    },
    {
      "nct_id": "NCT06531811",
      "title": "A Study to Investigate the Relative Bioavailability of AZD8630 Following a Device and Formulation Transition in Healthy Participants.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "AZD8630 (test formulation) via test inhaler",
          "type": "DRUG"
        },
        {
          "name": "AZD8630 (reference formulation) via Monodose inhaler",
          "type": "DRUG"
        },
        {
          "name": "Test inhaler",
          "type": "DEVICE"
        },
        {
          "name": "Monodose inhaler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 32,
      "start_date": "2024-08-06",
      "completion_date": "2024-10-03",
      "has_results": false,
      "last_update_posted_date": "2024-10-17",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06531811"
    },
    {
      "nct_id": "NCT00749411",
      "title": "Safety and Tolerability of Repeat Dosing of GSK233705/GW642444 in COPD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "GSK233705/GW642444",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 61,
      "start_date": "2008-11-13",
      "completion_date": "2009-02-12",
      "has_results": true,
      "last_update_posted_date": "2020-09-01",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 12,
      "location_summary": "Mobile, Alabama • Wheat Ridge, Colorado • Biddeford, Maine + 9 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Wheat Ridge",
          "state": "Colorado"
        },
        {
          "city": "Biddeford",
          "state": "Maine"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Summit",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00749411"
    },
    {
      "nct_id": "NCT00920621",
      "title": "Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Vitamin D 3 cholecalciferol",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Vitamin D3",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 39 Years · Female only"
      },
      "enrollment_count": 876,
      "start_date": "2009-09",
      "completion_date": "2023-08",
      "has_results": true,
      "last_update_posted_date": "2026-05-12",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 3,
      "location_summary": "San Diego, California • Boston, Massachusetts • St Louis, Missouri",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00920621"
    },
    {
      "nct_id": "NCT02148445",
      "title": "Smoking Cessation Versus Long-term Nicotine Replacement Among High-risk Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking",
        "Pulmonary Disease, Chronic Obstructive",
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "Standard Smoking Cessation",
          "type": "OTHER"
        },
        {
          "name": "Extended Nicotine Replacement Therapy",
          "type": "OTHER"
        },
        {
          "name": "Nicotine replacement therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 398,
      "start_date": "2014-05",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2017-10-06",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02148445"
    },
    {
      "nct_id": "NCT01397721",
      "title": "Pulmonary Vascular Changes in Early Chronic Obstructive Pulmonary",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "50 Years to 79 Years"
      },
      "enrollment_count": 359,
      "start_date": "2009-05",
      "completion_date": "2018-04-30",
      "has_results": false,
      "last_update_posted_date": "2024-07-24",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 4,
      "location_summary": "Alhambra, California • Chicago, Illinois • Baltimore, Maryland + 1 more",
      "locations": [
        {
          "city": "Alhambra",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01397721"
    },
    {
      "nct_id": "NCT00118716",
      "title": "A Study Measuring Asthma Control In Pediatric And Adolescent Subjects Whose Asthma Is Worsened By Activity Or Exercise",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Bronchospasm",
        "Activity/Exercise Induced Bronchospasm"
      ],
      "interventions": [
        {
          "name": "Fluticasone propionate/salmeterol",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone Propionate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "4 Years to 17 Years"
      },
      "enrollment_count": 248,
      "start_date": "2003-12-23",
      "completion_date": "2006-04-23",
      "has_results": true,
      "last_update_posted_date": "2019-02-05",
      "last_synced_at": "2026-10-17T07:32:00.667Z",
      "location_count": 50,
      "location_summary": "Little Rock, Arkansas • Huntington Beach, California • Orange, California + 45 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Palmdale",
          "state": "California"
        },
        {
          "city": "Paramount",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00118716"
    }
  ]
}