Result: Clonal sequence analysis revealed the presence of the
V82A major
PI resistance mutation in 1 of the 10 viral variants isolated from the time of treatment failure, as well as a number of
protease polymorphisms at both screening and failure (Table S1, available as Supplementary data at JAC Online).
Result: Of note, the F5 variant containing the major
PI resistance mutation
V82A displayed significantly reduced susceptibility to lopinavir (17-fold).
Discussion: This degree of reduction in
PI susceptibility was the same as observed for variant 1403 F6, which contained the
V82A major
PI resistance mutation, implying clinical relevance in the FCs observed for
gag-associ