MK-6186

MK-6186 is a novel non-nucleoside reverse transcriptase inhibitor with sub-nanomolar activity against wild-type viruses and the two most common NNRTI-resistant RT mutants (K103N and Y181C) . MK-6186 exhibits excellent antiviral activity against K103N and Y181C mutant viruses. When MK-6186 targets 12 common NNRTI-associated mutant viruses, only two relatively rare mutants (Y188L and V106I/Y188L) show high resistance, with FC values exceeding 100, while the FC values of the remaining viruses are all below 10. In addition, when MK-6186 faces 96 clinical virus isolates carrying NNRTI-resistant mutations, most (70%) viruses show more than 10-fold resistance to efavirenz (EFV), while only 29% of mutant viruses show more than 10-fold resistance to MK-6186[1].