CAMBRIDGE, Mass.--(BUSINESS WIRE)--Vertex Pharmaceuticals Incorporated (Nasdaq: VRTX) today announced the initiation of a Phase 3b study called OPTIMIZE that will evaluate twice-daily (BID) dosing of a telaprevir-based combination regimen in people chronically infected with genotype 1 hepatitis C virus (HCV) who have not been treated previously. This is the first Phase 3 study to evaluate twice-daily dosing of a protease inhibitor for the treatment of hepatitis C. OPTIMIZE will not include a control arm of pegylated-interferon and ribavirin alone.