Weight change from baseline for each were as follows : albiglutide -1.21 kg ( 95 % CI -1.68 to -0.74 ) , placebo -1.00 kg ( 95 % CI -1.81 to -0.20 ) , sitagliptin -0.86 kg ( 95 % CI -1.32 to -0.39 ) , glimepiride 1.17 kg ( 95 % CI 0.70-1 .63 ) .