MRK plans to start a 140-patient phase-2 trial of Sovaldi added to MRK’s existing 2-DAA regimen of MK-5172 (PI) + MK-8742 (NS5A) in GT1 and GT3 patients. This is slide #64 from today’s Investor Day webcast:
As is the case with the Sovaldi + Olysio combination, the main question pertaining to a two-vendor regimen such as the above is affordability.