{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Salmeterol+50+%CE%BCg",
    "query": {
      "intervention": "Salmeterol 50 μg"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T12:42:46.960Z",
  "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": "NCT02433834",
      "title": "Chronic Dosing Cross-Over Study to Assess the Efficacy and Safety of Glycopyrronium (PT001) in Adult Subjects With Intermittent Asthma or Mild to Moderate Persistent Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Glycopyrronium MDI",
          "type": "DRUG"
        },
        {
          "name": "Serevent Diskus 50 μg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pearl Therapeutics, 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": 248,
      "start_date": "2015-05-27",
      "completion_date": "2016-03-26",
      "has_results": true,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 43,
      "location_summary": "Birmingham, Alabama • Anaheim, California • Bakersfield, California + 36 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02433834"
    },
    {
      "nct_id": "NCT00669617",
      "title": "Study to Determine the Onset of Action of Indacaterol in Patients With Moderate to Severe Chronic Obstructive Pulmonary Disease (COPD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Indacaterol",
          "type": "DRUG"
        },
        {
          "name": "Salmeterol/fluticasone (50/500 μg)",
          "type": "DRUG"
        },
        {
          "name": "Salbutamol (200 µg)",
          "type": "DRUG"
        },
        {
          "name": "Placebo to Indacaterol",
          "type": "DRUG"
        },
        {
          "name": "Placebo to Salmeterol/fluticasone",
          "type": "DRUG"
        },
        {
          "name": "Placebo to salbutamol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 89,
      "start_date": "2008-04",
      "completion_date": "2008-08",
      "has_results": true,
      "last_update_posted_date": "2011-09-12",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 5,
      "location_summary": "Tamarac, Florida • Lafayette, Louisiana • Saint Charles, Missouri + 2 more",
      "locations": [
        {
          "city": "Tamarac",
          "state": "Florida"
        },
        {
          "city": "Lafayette",
          "state": "Louisiana"
        },
        {
          "city": "Saint Charles",
          "state": "Missouri"
        },
        {
          "city": "Shelby",
          "state": "North Carolina"
        },
        {
          "city": "Beaver",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00669617"
    },
    {
      "nct_id": "NCT00821093",
      "title": "Safety and Efficacy of Indacaterol Once Daily Versus Salmeterol Twice Daily in Chronic Obstructive Pulmonary Disease (COPD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease (COPD)"
      ],
      "interventions": [
        {
          "name": "Indacaterol 150 µg",
          "type": "DRUG"
        },
        {
          "name": "Salmeterol 50 µg",
          "type": "DRUG"
        },
        {
          "name": "Placebo to indacaterol",
          "type": "DRUG"
        },
        {
          "name": "Placebo to salmeterol",
          "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": 1123,
      "start_date": "2009-01",
      "completion_date": "2009-10",
      "has_results": true,
      "last_update_posted_date": "2011-08-18",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 74,
      "location_summary": "Anniston, Alabama • Fairhope, Alabama • Jasper, Alabama + 69 more",
      "locations": [
        {
          "city": "Anniston",
          "state": "Alabama"
        },
        {
          "city": "Fairhope",
          "state": "Alabama"
        },
        {
          "city": "Jasper",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00821093"
    },
    {
      "nct_id": "NCT01089127",
      "title": "Efficacy and Safety of Different Doses of Indacaterol in Chronic Obstructive Pulmonary Disease (COPD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Indacaterol",
          "type": "DRUG"
        },
        {
          "name": "Salmeterol 50 μg",
          "type": "DRUG"
        },
        {
          "name": "Placebo to indacaterol",
          "type": "DRUG"
        },
        {
          "name": "Placebo to salmeterol",
          "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": 552,
      "start_date": "2010-03",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2011-08-19",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 69,
      "location_summary": "Florence, Alabama • Jasper, Alabama • Phoenix, Arizona + 63 more",
      "locations": [
        {
          "city": "Florence",
          "state": "Alabama"
        },
        {
          "city": "Jasper",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Searcy",
          "state": "Arkansas"
        },
        {
          "city": "Fullerton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01089127"
    },
    {
      "nct_id": "NCT03535870",
      "title": "Clinical Endpoint Bioequivalence Study of Fluticasone Propionate & Salmeterol Xinafoate (100μg/50μg)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Fluticasone propionate/salmeterol",
          "type": "DRUG"
        },
        {
          "name": "Advair Diskus, 100 Mcg-50 Mcg Inhalation Powder",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "West-Ward Pharmaceutical",
      "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": 1556,
      "start_date": "2018-04-26",
      "completion_date": "2019-09-10",
      "has_results": false,
      "last_update_posted_date": "2019-11-29",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 1,
      "location_summary": "Las Vegas, Nevada",
      "locations": [
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03535870"
    },
    {
      "nct_id": "NCT02554786",
      "title": "A Multicenter Randomized 52 Week Treatment Double-blind, Triple Dummy Parallel Group Study to Assess the Efficacy and Safety of QMF149 Compared to Mometasone Furoate in Participants With Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Indacaterol acetate/Mometasone furoate",
          "type": "DRUG"
        },
        {
          "name": "Mometasone furoate",
          "type": "DRUG"
        },
        {
          "name": "Salmeterol xinafoate/fluticasone propionate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "12 Years to 75 Years"
      },
      "enrollment_count": 2216,
      "start_date": "2015-12-29",
      "completion_date": "2019-06-28",
      "has_results": true,
      "last_update_posted_date": "2020-03-05",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 29,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Orange, California + 26 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02554786"
    },
    {
      "nct_id": "NCT00529529",
      "title": "Safety of Indacaterol in Patients (≥ 12 Years) With Moderate to Severe Persistent Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Indacaterol 300 μg",
          "type": "DRUG"
        },
        {
          "name": "Salmeterol 50 μg",
          "type": "DRUG"
        },
        {
          "name": "Placebo to indacaterol",
          "type": "DRUG"
        },
        {
          "name": "Placebo to salmeterol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 805,
      "start_date": "2007-09",
      "completion_date": "2008-08",
      "has_results": true,
      "last_update_posted_date": "2011-08-29",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 56,
      "location_summary": "Glendale, Arizona • Phoenix, Arizona • Encinitas, California + 44 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00529529"
    },
    {
      "nct_id": "NCT00622635",
      "title": "A Crossover Study to Determine the 24 Hour Lung Function Profile of Indacaterol in Patients With Moderate-to-severe Chronic Obstructive Pulmonary Disease (COPD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Indacaterol 300 μg",
          "type": "DRUG"
        },
        {
          "name": "Placebo to indacaterol",
          "type": "DRUG"
        },
        {
          "name": "Salmeterol 50 μg",
          "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": 68,
      "start_date": "2008-01",
      "completion_date": "2008-07",
      "has_results": true,
      "last_update_posted_date": "2011-08-18",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 7,
      "location_summary": "Normal, Illinois • Shawnee Mission, Kansas • Lafayette, Louisiana + 4 more",
      "locations": [
        {
          "city": "Normal",
          "state": "Illinois"
        },
        {
          "city": "Shawnee Mission",
          "state": "Kansas"
        },
        {
          "city": "Lafayette",
          "state": "Louisiana"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00622635"
    },
    {
      "nct_id": "NCT00605891",
      "title": "Dose Finding Study of CHF 4226 for Treating Patients With COPD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "carmoterol (CHF 4226)",
          "type": "DRUG"
        },
        {
          "name": "salmeterol",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Chiesi Farmaceutici S.p.A.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 278,
      "start_date": "2006-10",
      "completion_date": "2007-06",
      "has_results": false,
      "last_update_posted_date": "2017-04-11",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 24,
      "location_summary": "Jonesboro, Arkansas • Fresno, California • San Diego, California + 19 more",
      "locations": [
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00605891"
    },
    {
      "nct_id": "NCT00640484",
      "title": "Confirmatory Dose Finding Study of 2 Dosages of CHF 4226 pMDI (Carmoterol) in Patients With COPD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "carmoterol (CHF 4226)",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "salmeterol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Chiesi Farmaceutici S.p.A.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 57,
      "start_date": "2008-04",
      "completion_date": "2008-10",
      "has_results": false,
      "last_update_posted_date": "2010-08-27",
      "last_synced_at": "2026-09-25T12:42:46.960Z",
      "location_count": 15,
      "location_summary": "Gilbert, Arizona • Phoenix, Arizona • Los Angeles, California + 12 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Austell",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00640484"
    }
  ]
}