Etravirine (TMC125) Etravirine (TMC125, R-165335) is a non-nucleoside reverse transcriptase inhibitor ( NNRTI ) used for the treatment of HIV. In vitro
Etravirine (TMC125), is highly active against wild-type HIV-1 with EC50 of 1.4 nM to 4.8 nM and shows some activity against HIV-2 with EC50 of 3.5 μM. TMC125 also inhibits a series of HIV-1 group M subtypes and circulating recombinant forms and a group O virus.
In vivo
Etravirine has a high genetic barrier to the development of resistance. In phase IIb trials in treatment-experienced patients, including those infected with virus resistant to NNRTIs and protease inhibitors (PIs), TMC125 is active against HIV resistant to currently available NNRTIs, with a similar tolerability profile to that of the control group. Cell Data