A Study to Assess the Effects of Fluticasone Furoate and GW642444M Combination in Healthy Subjects and in Subjects With Mild, Moderate or Severe Hepatic Impairment.

All subjects are scheduled to receive FF 200mcg/GW642444M 25mcg once daily for 7 days. The dose for subjects with severe hepatic impairment may be adjusted to FF 100mcg/GW642444M 12.5mcg after review of the PK and safety data from the moderate and healthy matched control subjects.