It's amazing how companies with unlimited cash to spend on R&D can expand these studies away from their original design. This gives a new meaning to open-label. It's 22 Arms and counting.
Here's the original title of this study
Open-Labeled Study of PSI-7977 and RBV With and Without PEG-IFN in Treatment-Naïve Patients With HCV GT2 or GT3
So now we have GS-5885 and GS-9669. GILD is also testing GT1 nulls, GT1 naives, GT1 Hemophiliacs, and GT-1 prior null responders with cirrhosis. Also GT2/GT3 experienced patients and arms without riba.
I'm interested in how that non-nuke would work combined with sofosbuvir in GT2/GT3. Maybe that will be Arm-23?