Safety, Tolerability, Pharmacokinetic and Pharmacodynamic Effects of GSK573719 (LAMA) and GW642444 (LABA)Administered Individually and Concurrently in Healthy Japanese Subjects

GSK573719 is a long-acting, inhaled, muscarinic receptor antagonist or anticholinergic bronchodilator. GW642444 is a potent and selective long-acting beta-2 agonist. Both are in development for once daily monotherapies for the treatment of COPD. In this study, their effects are investigated following individual and concurrent administration.