Valacyclovir 500 mg, 2 caplets twice daily for eight weeks

Tolerability assessments will be performed very two weeks while on study medications. Complete blood cell count, creatinine clearance and liver function tests will be performed every four weeks while on medications. Adverse events will be graded using the Division of AIDS Adverse Event Grading Table, Version 1.0, clarification August 2009. Based on previous clinical experience with valacyclovir, we expect the drug will be well-tolerated in patients with hepatitis C.

Serum HCV RNA will be measured at baseline and every four weeks while on study medication. We expect to see a decrease in HCV RNA >0.5 log10IU/mL during the valacyclovir phase compared with the placebo phase. The cross-over design will allow each patient to serve as their own control, providing data on the effect of HSV-2 suppression on HCV RNA.