Montelukast Compared With Placebo and Salmeterol in Exercise-Induced Bronchoconstriction (0476-316)

A Double-Blind, Randomized Multicenter, 3-Period, Crossover Study to Evaluate the Effects of a Single Dose of Montelukast Compared With Placebo and Salmeterol on Exercise-Induced Bronchoconstriction

To determine the effect of an approved medication being studied in support of a new approach in the prevention of exercise-induced asthma (a worsening of asthma caused by exercise, also known as exercise-induced bronchospasm), in patients who have a history of worsening asthma after exercise.

Inclusion Criteria:

• Physician-diagnosed exercise-induced bronchospasm

Exclusion Criteria:

• Patient is, other than asthma, not in good, stable health. The Primary Investigator will evaluate whether there are other reasons why the patient may not participate.