4 Week Switch Study in Hemodialysis-dependent Subjects With Anemia Associated With Chronic Kidney Disease

This is a four-week, Phase IIa, randomized, active-controlled, parallel-group, multi-center study to evaluate the safety, efficacy and pharmacokinetics of switching subjects from stable rhEPO to GSK1278863 in approximately 68 hemodialysis-dependent subjects with anemia associated with chronic kidney disease. The study consists of a screening phase of 2 weeks, a 4-week treatment phase and a 2-week follow-up phase. The range of Hgb values for study eligibility is 9.5-12.0 g/dL and the subjects must have received the same rhEPO product with total weekly doses that varied by no more than 50% during the 4 weeks prior to the Screening visit (Week -1. This study aims to estimate the relationship between dose of GSK1278863 and Hgb response in hemodialysis-dependent (HDD) subjects with anemia associated with chronic kidney disease after switching from a stable maintenance dose of recombinant human erythropoetin (rhEPO).