There are four news arms, all for genotype-1 patients. Two new arms in the first-line setting test PSI-7977 + BMS-790052 for 12 weeks with or without ribavirin.
Two new arms in the second-line setting following failure on Incivek or Victrelis test test PSI-7977 + BMS-790052 for 12 weeks with or without ribavirin.
PSI-7977 is a nuke from VRUS and BMS-790052 is an NS5A inhibitor from BMY.