Inhaled nedocromil sodium as additional treatment to high dose inhaled corticosteroids in the management of bronchial asthma

Thirty five asthmatic patients were included in a randomized, double-blind, placebo-controlled, parallel group study of inhaled nedocromil sodium (4 x 4 mg daily) as an additional treatment to high dose (greater than or equal to 1,000 micrograms) inhaled corticosteroids in the management of bronchial asthma. Following a four week baseline, patients received nedocromil sodium (17) or placebo treatment (18) for eight weeks. Five patients (four in the group subsequently randomized to nedocromil sodium) used short course oral corticosteroid therapy during the baseline and four placebo treated patients used oral steroid therapy during treatment. Fifteen patients (11 nedocromil sodium) reported unusual symptoms. Two nedocromil sodium treated patients were withdrawn owing to treatment taste and vomiting. Statistically significant treatment differences in favour of nedocromil sodium were seen for daytime symptoms (p = 0.03) and morning peak expiratory flow (PEF) (p = 0.012) during weeks 5-8, and for clinician opinion (p = 0.02). Patient opinion (p = 0.053) and evening PEF (p = 0.08) failed to reach statistical significance. Eight out of fifteen and three out of seventeen patients considered nedocromil sodium and placebo, respectively, to be very or moderately effective. The results indicate that the addition of nedocromil sodium (4 mg four times daily) to moderate to severe asthmatics not fully controlled on a regimen of greater than or equal to 1,000 micrograms inhaled corticosteroids and inhaled bronchodilators can produce improvements in symptoms and pulmonary function.

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