The Effect of Montelukast on Difficulty in Breathing After Exercise in Pediatric Patients (MK0476-377)(COMPLETED)

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier:
NCT00534976
First received: September 21, 2007
Last updated: August 15, 2013
Last verified: August 2013

September 21, 2007
August 15, 2013
February 2008
March 2010   (final data collection date for primary outcome measure)
Maximum Percent Fall in Forced Expiratory Volume in 1 Second (FEV1) After Exercise Challenge at 2 Hours Postdose [ Time Frame: Pre-exercise baseline and 0-60 minutes after the exercise challenge performed 2 hours post-dose ] [ Designated as safety issue: No ]
Maximum Percent Fall in FEV1 was defined as the % change from pre-exercise baseline FEV1 to the lowest FEV1 within 60 mins (minutes) after exercise. Spirometry measurements were taken 5 mins prior to each exercise challenge and immediately, 5, 10, 15, 30, 45, & 60 mins after each exercise challenge. The 2-hour exercise challenges occurred 2 hours after the witnessed dose of study medication. The calculation used to produce the results was [100*(1-(X/Y))] where X= the lowest FEV1 within 60 mins after exercise & Y= pre-exercise baseline FEV1. Smaller values mean greater response to therapy.
The change from pre-exercise baseline spirometry reading to the maximum fall in the spirometry reading (FEV1) during one exercise challenge with montelukast compared to another challenge with placebo
Complete list of historical versions of study NCT00534976 on ClinicalTrials.gov Archive Site
  • Maximum Percent Fall in FEV1 After Exercise Challenge at 24 Hours Post-dose [ Time Frame: Pre-exercise baseline and 0-60 minutes after the exercise challenge performed 24 hours post-dose ] [ Designated as safety issue: No ]
    Maximum Percent Fall in FEV1 was defined as the % change from pre-exercise baseline FEV1 to the lowest FEV1 within 60 mins after exercise. Spirometry measurements were taken 5 mins prior to each exercise challenge and immediately, 5, 10, 15, 30, 45, & 60 mins after each exercise challenge. The 24-hour exercise challenges occurred 20-24 hours after the witnessed dose of study medication. The calculation used to produce the resulted results was [100*(1-(X/Y))] where X= the lowest FEV1 within 60 mins after exercise & Y= pre-exercise baseline FEV1. Smaller values mean greater response to therapy.
  • Area Under the Curve for FEV1 Percent Fall From Pre-exercise Baseline to 60 Minutes Following Exercise Challenge (AUC0-60 Min) at 2 Hours Post-dose [ Time Frame: Pre-exercise baseline to 60 minutes after the exercise challenge performed 2 hours post-dose ] [ Designated as safety issue: No ]
    AUC0-60min was defined as the Area Under the Curve for FEV1 percent change from pre-exercise baseline to the 60 mins following exercise challenge. The area was computed by applying the trapezoidal rule, and including only the area below the pre-exercise baseline. If a participant received β-agonist during the 60 mins after the exercise challenge, the FEV1 measurements obtained after β-agonist administration were excluded and the last pre-rescue FEV1 measurement was carried forward to the 60 mins time point in the calculation of the AUC0-60 min. Smaller values mean greater response to therapy.
  • Area Under the Curve for FEV1 Percent Fall From Pre-exercise Baseline to 60 Minutes Following Exercise Challenge (AUC0-60 Min) at 24 Hours Post-dose [ Time Frame: Pre-exercise baseline to 60 minutes after the exercise challenge performed 24 hours post-dose ] [ Designated as safety issue: No ]
    AUC0-60min was defined as the Area Under the Curve for FEV1 percent change from pre-exercise baseline to the 60 mins following exercise challenge. The area was computed by applying the trapezoidal rule, and including only the area below the pre-exercise baseline. If a participant received β-agonist during the 60 mins after the exercise challenge, the FEV1 measurements obtained after β-agonist administration were excluded and the last pre-rescue FEV1 measurement was carried forward to the 60 mins time point in the calculation of the AUC0-60 min. Smaller values mean greater response to therapy.
  • Time to Recovery From Maximum Percent Fall in FEV1 at 2 Hours Post-dose [ Time Frame: 0-60 minutes and 0-90 minutes after the exercise challenge at 2 hours postdose ] [ Designated as safety issue: No ]

    This endpoint was defined as the duration between the time at which the maximum percent fall in FEV1 occurred & the time when the percent fall in FEV1 returned to within 5% of the pre-exercise baseline for the first time.

    Spirometry measurements were taken 5 mins prior to each exercise challenge & immediately, 5, 10, 15, 30, 45, & 60 mins after each exercise challenge. If participant had not returned to within 5% of the pre-exercise FEV1 value by 60 mins, then measurements were obtained at 75 & 90 mins.

    The 2-hour exercise challenges occurred 2 hours after the witnessed dose of medication.

  • Time to Recovery From Maximum Percent Fall in FEV1 at 24 Hours Post-dose [ Time Frame: 0-60 minutes and 0-90 minutes after the exercise challenge at 24 hours postdose ] [ Designated as safety issue: No ]
    This endpoint was defined as the duration between the time at which the maximum percent fall in FEV1 occurred & the time when the percent fall in FEV1 returned to within 5% of the pre-exercise baseline for the first time. Spirometry measurements were taken 5 mins prior to each exercise challenge & immediately, 5, 10, 15, 30, 45 & 60 mins after each exercise challenge. If participant had not returned to within 5% of the pre-exercise FEV1 value by 60 mins, then measurements were obtained at 75 & 90 mins. The 24-hour exercise challenges occurred 20-24 hours after the witnessed dose of medication.
  • Number of Participants Requiring Rescue Medication at 2 Hours Postdose [ Time Frame: 0-90 minutes after the exercise challenge at 2 hours postdose ] [ Designated as safety issue: No ]
    This endpoint was defined as the number of participants requiring rescue medication with β-agonist within the 90 mins following exercise challenge. The 2-hour exercise challenges occurred 2 hours after the witnessed dose of study medication.
  • Number of Participants Requiring Rescue Medication at 24 Hours Postdose [ Time Frame: 0-90 minutes after the exercise challenge at 24 hours postdose ] [ Designated as safety issue: No ]
    This endpoint was defined as the number of participants requiring rescue medication with β-agonist within the 90 mins following exercise challenge. The 24-hour exercise challenges occurred 20-24 hours after the witnessed dose of study medication.
The time the maximum fall in the spirometry reading (FEV1) takes to return to the baseline measurement
Not Provided
Not Provided
 
The Effect of Montelukast on Difficulty in Breathing After Exercise in Pediatric Patients (MK0476-377)(COMPLETED)
A Double-Blind, Placebo-Controlled, Multicenter, Crossover Study to Evaluate the Effects of a Single Oral Dose of Montelukast, Compared With Placebo, on Exercise-Induced Bronchoconstriction (EIB) in Pediatric Patients Aged 4 to 14 Years

This study will see if there is a change in breathing after exercising when the child receives study drug ( montelukast or placebo). Breathing will be measured by a spirometer before exercising and measured again several times after exercising.

Not Provided
Interventional
Phase 3
Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Crossover Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Exercise-induced Bronchoconstriction (EIB)
  • Drug: Comparator: montelukast sodium

    Patients 4-5 years: 4 mg Montelukast chewable tablet daily

    Patients 6-14 years: 5 mg chewable tablet daily

  • Drug: Comparator: Comparator: placebo (unspecified)

    Patients 4-5 years: 4 mg Pbo chewable tablet daily

    Patients 6-14 years: 5 mg Pbo chewable tablet daily

  • Experimental: Montelukast Sodium

    Participants 4-5 years: A single dose of 4 mg Montelukast chewable tablet daily, crossing over to matching placebo (Pbo) after a 3- to 7-day washout period (no participants 4-5 years were enrolled)

    Participants 6-14 years: A single dose of 5 mg Montelukast chewable tablet daily, crossing over to matching Pbo after a 3- to 7-day washout period

    Intervention: Drug: Comparator: montelukast sodium
  • Experimental: Placebo

    Participants 4-5 years: A single dose of 4 mg Pbo chewable tablet daily, crossing over to Montelukast 4 mg chewable tablet after a 3- to 7-day washout period (no participants 4-5 years of age were enrolled)

    Participants 6-14 years: A single dose of 5 mg Pbo chewable tablet daily, crossing over to Montelukast 5 mg chewable tablet after a 3- to 7-day washout period

    Intervention: Drug: Comparator: Comparator: placebo (unspecified)
Wasfi YS, Kemp JP, Villarán C, Massaad R, Xin W, Smugar SS, Knorr BA, Philip G. Onset and duration of attenuation of exercise-induced bronchoconstriction in children by single-dose of montelukast. Allergy Asthma Proc. 2011 Nov-Dec;32(6):453-9. doi: 10.2500/aap.2011.32.3482.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
364
March 2010
March 2010   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • The child is 4 years to 14 years of age
  • The child is a non smoker
  • The child has exercise-induced bronchoconstriction (EIB)

Exclusion Criteria:

  • The child has active or chronic breathing disease, other than asthma
  • The child has required insertion of a breathing tube for asthma
  • The child had major surgery within the last 4 weeks
  • The child is currently in the hospital
  • The child has or had an upper respiratory tract infection within the last 2 weeks
  • The child has been hospitalized or visited the emergency room or had a change in their medication for asthma within the last 4 weeks
  • The child has been in a research study in the last 4 weeks
  • The child has stomach, brain, heart, kidney or liver disease
  • The child drinks more that 4 caffeinated drinks a day
Both
4 Years to 14 Years
No
Contact information is only displayed when the study is recruiting subjects
Not Provided
 
NCT00534976
0476-377, 2007_586
Not Provided
Merck Sharp & Dohme Corp.
Merck Sharp & Dohme Corp.
Not Provided
Study Director: Medical Monitor Merck Sharp & Dohme Corp.
Merck Sharp & Dohme Corp.
August 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP