Both doses of UMEC plus VI also improved trough FEV@ compared with VI monotherapy ( UMEC @ g plus VI @ g : @ L -LSB- @ to @ ; p = @ -RSB- ; UMEC @ g plus VI @ g : @ L -LSB- @ to @ ; p = @ -RSB- , but not compared with UMEC @ g monotherapy ( UMEC @ g plus VI @ g : @ L -LSB- -@ to @ ; p = @ -RSB- ; UMEC @ g plus VI @ g : @ L -LSB- -@ to @ ; p = @ -RSB- ) .