Overview Study Comparing the Safety of ASP2151 to Valacyclovir and Placebo in Healthy Volunteers Status: Terminated Trial end date: 2010-04-01 Target enrollment: Participant gender: Summary The objective of the study is to compare the safety of ASP2151 to valacyclovir and placebo in healthy male and female adult volunteers. Phase: Phase 1 Details Lead Sponsor: Astellas Pharma IncTreatments: AcyclovirValacyclovir