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Clinical Trial
. 1991 Oct;32(4):512-5.
doi: 10.1111/j.1365-2125.1991.tb03941.x.

Effect of RG 12525, an oral leukotriene D4 antagonist, on the airway response to inhaled leukotriene D4 in subjects with mild asthma

I Wahedna  1 , A S Wisniewski, A E Tattersfield
Affiliations
Clinical Trial

Effect of RG 12525, an oral leukotriene D4 antagonist, on the airway response to inhaled leukotriene D4 in subjects with mild asthma

I Wahedna et al. Br J Clin Pharmacol. 1991 Oct.

Abstract

We have studied the effect of RG 12525, an oral leukotriene D4 (LTD4) antagonist, on LTD4-induced bronchoconstriction in eight male subjects with mild asthma (baseline FEV1 greater than 80% predicted) in a double-blind, placebo-controlled fashion. RG 12525 800 mg displaced the dose-response curve for LTD4 to the right. The mean (95% confidence intervals) difference in log PC20FEV1 following RG 12525 and placebo was 2.88 (1.61, 4.17) doubling doses of LTD4 (P less than 0.01), a 7.5 fold difference. We conclude that RG 12525 when administered orally is an effective LTD4 antagonist in subjects with mild asthma.

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