Overall at week 24, treatment with a tenofovir-containing regimen resulted in 77% (46/ 60) of patients with HBV DNA < 400 copies/ ml (< 69 IU/ ml) and 62% (37/ 60) of patients with undetectable HBV DNA (below 169 copies/ ml [< 29 IU/ ml]; the limit of quantification of the Roche Cobas TaqMan HBV assay).