Dataset from A Randomised, Double-blind, Placebo-controlled, Four-way Crossover Study to Compare the Pharmacodynamics and Pharmacokinetics of GW685698X and GW642444M When Administered Separately and in Combination as a Single Dose From a Novel Dry Powder Device in Healthy Japanese Subjects

A combination of the corticosteroid GW685698X and the long-acting ß2-agonist GW642444M is being developed for once daily administration for the maintenance treatment of asthma and COPD. GW642444M and GW685698X will be simultaneously co-administered from a single device and compared with GW642444M and GW685698X administered separately in order to determine whether co-administration affects the safety, tolerability, pharmacodynamic and/or pharmacokinetics of either compound in healthy Japanese subjects.