The most common grade 3-4 adverse events were febrile neutropenia ( 23 [ 15 % ] of 152 in the aprepitant group vs 21 [ 14 % ] of 150 in the control group ) , anaemia ( 14 [ 9 % ] vs 26 [ 17 % ] ) , and decreased neutrophil count ( 11 [ 7 % ] vs 17 [ 11 % ] ) .