Resistance mutations in human immunodeficiency virus type 1 integrase selected with elvitegravir confer reduced susceptibility to a wide range of integrase inhibitors.
Abstract: We find the primary resistance-conferring mutations to be Q148R, E92Q, and T66I and demonstrate that they confer a reduction in susceptibility not only to elvitegravir but also to raltegravir (MK-0518) and other integrase inhibitors.
Clade-specific HIV-1 integrase polymorphisms do not reduce raltegravir and elvitegravir phenotypic susceptibility.
Abstract: Control Q148R mutant virus showed fold change values of 17.85 +/- 2.77 and 88.94 +/- 9.02 for raltegravir and elvitegravir, respectively, whereas the average fold change for the clinical samples was 0.91 +/- 0.40, and 0.84 +/- 0.37.