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The Singulair® add-on Study Effectiveness of Adding Montelukast to Inhaled Corticosteroids in Adult Subjects With Uncontrolled Asthma (0476-384) (SAS)

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: September 19, 2008
Last Update Posted: March 13, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp.
The purpose of this study is to evaluate the effectiveness of adding Montelukast Sodium (singulair®) 10 mg per day to inhaled corticosteroids in adult subjects with uncontrolled asthma.

Condition Intervention Phase
Asthma Drug: montelukast sodium Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An 8 Week Multicenter, Open-label, Observational Study to Evaluate the Effectiveness of Adding Montelukast Sodium 10 mg Per Day to Inhaled Corticosteroids in Adult Subjects With Uncontrolled Asthma

Resource links provided by NLM:

Further study details as provided by Merck Sharp & Dohme Corp.:

Primary Outcome Measures:
  • To describe the percentage of patients with asthma who will be controlled after 8 weeks of treatment with montelukast used in combination with inhaled corticosteroids [ Time Frame: 8 weeks ]

Secondary Outcome Measures:
  • To evaluate the safety and tolerability of montelukast [ Time Frame: 8 weeks ]

Enrollment: 800
Study Start Date: June 2006
Study Completion Date: September 2007
Primary Completion Date: September 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
Drug: montelukast sodium
Montelukast Tablet, 10 mg, 8 weeks, daily
Other Name: Singulair


Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients Is 18 Years Old

Note 1: Regulatory Requirements Necessitate The Following Criterion. It May Not Be Appropriate For Your Patients. Female Patients Of Childbearing Potential Should Be Informed Not To Become Pregnant During The Study By Using The Appropriate Contraceptive Methods (Oral Or Long-Acting Contraceptive Injections (Depo Provera), Intrauterine Device (Iud), Or Barrier Methods (E.G. Condom Or Diaphragm Plus Spermicide) Or To Be Abstinent (No Sexual Intercourse)) Beginning At Least 7 Days Before Visit 1 And Continuing At Least 14 Days After Visit 4 Or A Discontinuation Visit

Note 2: For Alberta: Investigators Who Will Recruit In Private Office, No Patients Can Be Recruited In The Study Until Approval From The College Of Physicians And Surgeons Of Alberta Ethics Committee Is Obtained

Exclusion Criteria:

  • Patient Is Well Controlled, Adherent And Satisfied With Current Controller Therapy
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00755794

Sponsors and Collaborators
Merck Sharp & Dohme Corp.
Study Director: Medical Monitor Merck Sharp & Dohme Corp.
  More Information

Additional Information:
Study Data/Documents: CSR Synopsis  This link exits the ClinicalTrials.gov site

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier: NCT00755794     History of Changes
Other Study ID Numbers: 0476-384
First Submitted: September 18, 2008
First Posted: September 19, 2008
Last Update Posted: March 13, 2017
Last Verified: March 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description:



Additional relevant MeSH terms:
Bronchial Diseases
Respiratory Tract Diseases
Lung Diseases, Obstructive
Lung Diseases
Respiratory Hypersensitivity
Hypersensitivity, Immediate
Immune System Diseases
Anti-Asthmatic Agents
Respiratory System Agents
Leukotriene Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Cytochrome P-450 CYP1A2 Inducers
Cytochrome P-450 Enzyme Inducers
Molecular Mechanisms of Pharmacological Action