Inasmuch as the HCV polymerase is also known as NS5B, combining an NS5A inhibitor such as BMS-790052 with a polymerase inhibitor is tantamount to taking one item from column A and one item from column B—just like in a Chinese restaurant :- )
This drug candidate, previously unnamed, is now called PPI-461. Presidio acquired the compound from XTL Biopharmaceuticals’ back burner in Mar 2008 (#msg-27791536).
I suspect that Presidio is bringing PPI-461 out of the woodwork now to capitalize on the recent buzz about BMS-790052 (#msg-47876219).