Stable transplant recipients currently receiving cyclosporine ( CsA ) were assigned randomly ( 1:1:1 ) to continue CsA ( target trough level of 50-250 ng/mL ) ; or convert to `` reduced '' TAC ( target trough level 3.0-5 .9 ng/mL ) or `` standard '' TAC ( target trough level 6.0-8 .9 ng/mL ) .
