Etravirine

A second-generation non-nucleoside reverse transcriptase inhibitor (NNRTI) for treatment of HIV-1 infection.HIV Infection Approved(In Vitro):TMC125 is highly active against wild-type HIV-1 (50% effective concentration [EC50]=1.4 to 4.8 nM) and shows some activity against HIV-2 (EC50=3.5 μM). TMC125 also inhibits a series of HIV-1 group M subtypes and circulating recombinant forms and a group O virus. TMC125 has activity for 19 viruses with EC50 of < 5 nM.(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.