
Etravirine is an HIV-1 specific, non-nucleoside reverse transcriptase inhibitor (NNRTI) that was FDA approved for treatment-experienced adult patients with HIV-1 strains resistant to an NNRTI and other antiretroviral agents. In phase 3 trials of etravirine versus placebo, both in combination with darunavir/ritonavir, a background of nucleoside/nucleotide reverse transcriptase inhibitors with or without enfuvirtide demonstrated potent antiviral activity that was sustained through 48 weeks.