Pharmasset, Inc. (Nasdaq: VRUS) announced that the enrollment of Cohort 2, led by its partner Roche (SWX: ROG.VX; RO.S, OTCQX: RHHBY), will continue for the remaining 300 genotype 1 and 4 patients in the ongoing phase 2b trial of RG7128, a first-in-class nucleoside analog polymerase inhibitor for the treatment of chronic hepatitis C virus (HCV) [...]

Pharmasset, Inc. (Nasdaq: VRUS) announced the nomination of PSI-352938 (”PSI-938″) as a lead development candidate from two series of purine analogs for the treatment of chronic hepatitis C virus (HCV) infection. PSI-938 is a proprietary nucleotide analog polymerase inhibitor of HCV that is being advanced into studies required for submission of an Investigational New Drug [...]