{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Long-Acting+Beta+Agonist&page=2",
    "query": {
      "intervention": "Long-Acting Beta Agonist",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 56,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Long-Acting+Beta+Agonist&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Long-Acting+Beta+Agonist&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T22:51:45.263Z",
  "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": "NCT01899742",
      "title": "The Purpose of the This Study is to Evaluate the Spirometric Effect (Trough FEV1) of Umeclidinium/Vilanterol 62.5/25 mcg Once Daily Compared With Tiotropium 18mcg Once Daily Over a a 12-week Treatment Period in Subjects With COPD Who Continue to Have Symptoms on Tiotropium",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "Umeclidinium/Vilanterol 62.5/25 mcg",
          "type": "DRUG"
        },
        {
          "name": "Tiotropium 18 mcg",
          "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": 497,
      "start_date": "2014-09-15",
      "completion_date": "2015-07-22",
      "has_results": true,
      "last_update_posted_date": "2018-01-24",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 3,
      "location_summary": "Medford, Oregon • Greenville, South Carolina • Spartanburg, South Carolina",
      "locations": [
        {
          "city": "Medford",
          "state": "Oregon"
        },
        {
          "city": "Greenville",
          "state": "South Carolina"
        },
        {
          "city": "Spartanburg",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01899742"
    },
    {
      "nct_id": "NCT01316887",
      "title": "A 52-Week, Multicenter, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled Study to Evaluate the Safety and Tolerability of GSK573719/GW642444 and GSK573719 in Subjects With Chronic Obstructive Pulmonary Disease (COPD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "125/25 mcg once-daily GSK573719/GW642444",
          "type": "DRUG"
        },
        {
          "name": "125mcg once-daily GSK573719",
          "type": "DRUG"
        },
        {
          "name": "Placebo once-daily",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "40 Years to 120 Years"
      },
      "enrollment_count": 563,
      "start_date": "2011-01-01",
      "completion_date": "2012-07-21",
      "has_results": true,
      "last_update_posted_date": "2018-05-02",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 15,
      "location_summary": "Mobile, Alabama • Sunset, Louisiana • Plymouth, Minnesota + 12 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Sunset",
          "state": "Louisiana"
        },
        {
          "city": "Plymouth",
          "state": "Minnesota"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01316887"
    },
    {
      "nct_id": "NCT01437995",
      "title": "Long-acting Beta Agonist Step Down Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Fluticasone/Salmeterol Diskus",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone Diskus",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 459,
      "start_date": "2012-03",
      "completion_date": "2015-10",
      "has_results": true,
      "last_update_posted_date": "2017-04-25",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 19,
      "location_summary": "Tucson, Arizona • San Diego, California • Denver, Colorado + 15 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01437995"
    },
    {
      "nct_id": "NCT01054885",
      "title": "Efficacy and Safety Study of Fluticasone Furoate (FF)/GW642444 Inhalation Powder and the Individual Components in Subjects With Chronic Obstructive Pulmonary Disease (COPD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "FF Inhalation Powder",
          "type": "DRUG"
        },
        {
          "name": "FF/GW642444 Inhalation Powder",
          "type": "DRUG"
        },
        {
          "name": "GW642444 Inhalation Powder",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": 1226,
      "start_date": "2009-10-19",
      "completion_date": "2011-02-08",
      "has_results": true,
      "last_update_posted_date": "2018-01-24",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 49,
      "location_summary": "Birmingham, Alabama • Jasper, Alabama • Lakewood, California + 46 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Jasper",
          "state": "Alabama"
        },
        {
          "city": "Lakewood",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01054885"
    },
    {
      "nct_id": "NCT02251379",
      "title": "Environmental Control as Add-on Therapy in Childhood Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Flovent Diskus",
          "type": "DRUG"
        },
        {
          "name": "Home Environmental Intervention",
          "type": "OTHER"
        },
        {
          "name": "Advair Diskus",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "5 Years to 17 Years"
      },
      "enrollment_count": 155,
      "start_date": "2014-10-01",
      "completion_date": "2018-11",
      "has_results": true,
      "last_update_posted_date": "2019-11-20",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02251379"
    },
    {
      "nct_id": "NCT01336608",
      "title": "A 24-week Arterial Stiffness Study With Fluticasone Furoate/Vilanterol in COPD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "Fluticasone Furoate/Vilanterol",
          "type": "DRUG"
        },
        {
          "name": "Vilanterol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": 446,
      "start_date": "2011-03-04",
      "completion_date": "2014-11-04",
      "has_results": true,
      "last_update_posted_date": "2017-11-08",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 36,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Newport Beach, California + 33 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01336608"
    },
    {
      "nct_id": "NCT01772147",
      "title": "Efficacy and Safety of the Addition of Fluticasone Propionate/Salmeterol (250/50mcg) Twice-daily to 2 Doses of Umeclidinium Bromide Inhalation Powder (62.5 or 125mcg) Once-daily Over 12 Weeks.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "Umeclidinium bromide 62.5mcg",
          "type": "DRUG"
        },
        {
          "name": "Umeclidinium bromide 125mcg",
          "type": "DRUG"
        },
        {
          "name": "Fluticasone propionate 250mcg/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": 608,
      "start_date": "2013-01",
      "completion_date": "2013-08",
      "has_results": true,
      "last_update_posted_date": "2017-03-23",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 17,
      "location_summary": "Mobile, Alabama • Phoenix, Arizona • Huntington Beach, California + 13 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01772147"
    },
    {
      "nct_id": "NCT01712854",
      "title": "Effects of Symbicort on the Ventilatory Kinematics",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Chronic Obstructive Lung Disease"
      ],
      "interventions": [
        {
          "name": "Budesonide",
          "type": "DRUG"
        },
        {
          "name": "Symbicort",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 9,
      "start_date": "2012-03",
      "completion_date": "2012-09",
      "has_results": true,
      "last_update_posted_date": "2016-09-02",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01712854"
    },
    {
      "nct_id": "NCT00200967",
      "title": "Asthma Clinical Research Network (ACRN) Trial - Long-Acting Beta Agonist Response by Genotype (LARGE)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "salmeterol",
          "type": "DRUG"
        },
        {
          "name": "beclomethasone HFA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "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": 87,
      "start_date": "2004-12",
      "completion_date": "2008-02",
      "has_results": true,
      "last_update_posted_date": "2018-01-23",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 7,
      "location_summary": "San Diego, California • San Francisco, California • Denver, Colorado + 4 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00200967"
    },
    {
      "nct_id": "NCT01697696",
      "title": "Long Term Safety Study of NVA237 vs QAB149 in COPD Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease (COPD)"
      ],
      "interventions": [
        {
          "name": "NVA237",
          "type": "DRUG"
        },
        {
          "name": "Long-acting beta 2-agonist (LABA)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 511,
      "start_date": "2012-10",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2016-03-16",
      "last_synced_at": "2026-10-06T22:51:45.263Z",
      "location_count": 61,
      "location_summary": "Gulf Shores, Alabama • Mobile, Alabama • Tucson, Arizona + 52 more",
      "locations": [
        {
          "city": "Gulf Shores",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01697696"
    }
  ]
}