GSK1325756 is a potent, competitive, selective and reversible CXCR2 receptor antagonist that is being developed as a once-daily oral anti-inflammatory medication for the treatment of chronic obstructive pulmonary disease (COPD). Selective antagonism of the interaction between CXCR2 and its various chemokine ligands is a potential strategy for reducing the underlying inflammation in COPD via the inhibition of neutrophil recruitment and activation. The current study explores the effects of age, gender and food (high fat meal) on the pharmacokinetics of GSK1325756.