{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=montelukast",
    "query": {
      "intervention": "montelukast"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 106,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=montelukast&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T10:49:53.038Z",
  "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": "NCT00115297",
      "title": "Montelukast for Early Life Wheezing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Lung Diseases",
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Montelukast",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": "3 Years",
        "sex": "ALL",
        "summary": "3 Months to 3 Years"
      },
      "enrollment_count": 62,
      "start_date": "2004-09",
      "completion_date": "2016-10",
      "has_results": true,
      "last_update_posted_date": "2017-03-14",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00115297"
    },
    {
      "nct_id": "NCT00513760",
      "title": "Transporter Mediated Uptake of Montelukast",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Grapefruit juice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Orange Juice",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Gatorade",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Nemours Children's Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "15 Years to 18 Years"
      },
      "enrollment_count": 27,
      "start_date": "2007-06",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2025-02-10",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00513760"
    },
    {
      "nct_id": "NCT01437735",
      "title": "Dose Finding Study for QAW039 in Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "QAW039",
          "type": "DRUG"
        },
        {
          "name": "Montelukast",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "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": 1043,
      "start_date": "2011-08",
      "completion_date": "2013-11",
      "has_results": false,
      "last_update_posted_date": "2020-12-19",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 38,
      "location_summary": "Scottsdale, Arizona • Encinitas, California • Huntington Beach, California + 33 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Encinitas",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01437735"
    },
    {
      "nct_id": "NCT05362474",
      "title": "Targeting Leukotrienes in Kidney Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diabetic Kidney Disease"
      ],
      "interventions": [
        {
          "name": "Montelukast",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "30 Years to 70 Years"
      },
      "enrollment_count": 6,
      "start_date": "2022-07-01",
      "completion_date": "2023-06-20",
      "has_results": true,
      "last_update_posted_date": "2025-05-30",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05362474"
    },
    {
      "nct_id": "NCT00296530",
      "title": "Study Of Patients With Allergic Rhinitis And Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "fluticasone propionate/salmeterol",
          "type": "DRUG"
        },
        {
          "name": "fluticasone propionate",
          "type": "DRUG"
        },
        {
          "name": "montelukast",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "15 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2005-09",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2016-10-28",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 80,
      "location_summary": "Ozark, Alabama • Tempe, Arizona • Little Rock, Arkansas + 67 more",
      "locations": [
        {
          "city": "Ozark",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Huntington Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00296530"
    },
    {
      "nct_id": "NCT00273689",
      "title": "Exercise Induced Bronchospasm in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Exercise Induced Bronchospasm"
      ],
      "interventions": [
        {
          "name": "montelukast vs pretreatment with albuterol",
          "type": "DRUG"
        },
        {
          "name": "montelukast",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "7 Years to 17 Years"
      },
      "enrollment_count": 13,
      "start_date": "2005-12",
      "completion_date": "2007-09",
      "has_results": false,
      "last_update_posted_date": "2008-05-07",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00273689"
    },
    {
      "nct_id": "NCT01536041",
      "title": "A Placebo and Active Controlled Study of ONO-6950 in Asthmatic Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "ONO-6950",
          "type": "DRUG"
        },
        {
          "name": "Montelukast",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ono Pharma USA Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 59,
      "start_date": "2012-03",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2014-02-14",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 9,
      "location_summary": "Los Angeles, California • San Diego, California • Denver, Colorado + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "North Dartmouth",
          "state": "Massachusetts"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01536041"
    },
    {
      "nct_id": "NCT05819541",
      "title": "Treating Exacerbations of Asthma With Oral Montelukast in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Status Asthmaticus"
      ],
      "interventions": [
        {
          "name": "Montelukast Oral Granules",
          "type": "DRUG"
        },
        {
          "name": "Albuterol",
          "type": "DRUG"
        },
        {
          "name": "Corticosteroid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "4 Years to 12 Years"
      },
      "enrollment_count": 90,
      "start_date": "2023-10-20",
      "completion_date": "2026-03-26",
      "has_results": false,
      "last_update_posted_date": "2026-07-02",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05819541"
    },
    {
      "nct_id": "NCT01307462",
      "title": "Targeted Therapy of Bronchiolitis Obliterans Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Bronchiolitis Obliterans"
      ],
      "interventions": [
        {
          "name": "fluticasone propionate",
          "type": "DRUG"
        },
        {
          "name": "montelukast sodium",
          "type": "DRUG"
        },
        {
          "name": "azithromycin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stephanie Lee",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "6 Years to 99 Years"
      },
      "enrollment_count": 36,
      "start_date": "2011-06",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2017-10-04",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 11,
      "location_summary": "Scottsdale, Arizona • Stanford, California • Tampa, Florida + 8 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01307462"
    },
    {
      "nct_id": "NCT01103349",
      "title": "BI 671800 in Asthmatic Patients on Inhaled Corticosteroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "BI 671800",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Montelukast",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boehringer Ingelheim",
      "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": 243,
      "start_date": "2010-04-20",
      "completion_date": "2011-08-09",
      "has_results": true,
      "last_update_posted_date": "2022-05-31",
      "last_synced_at": "2026-09-02T10:49:53.038Z",
      "location_count": 6,
      "location_summary": "Denver, Colorado • North Dartmouth, Massachusetts • Plymouth, Minnesota + 3 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "North Dartmouth",
          "state": "Massachusetts"
        },
        {
          "city": "Plymouth",
          "state": "Minnesota"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01103349"
    }
  ]
}