Overview A Follow-up Study to Assess Resistance to ABT-072 in HCV-infected Subjects Administered ABT-072 in Prior ABT-072 Studies Status: Completed Trial end date: 2010-04-01 Target enrollment: Participant gender: Summary This is a follow-up study with no treatment and only samples being collected. Phase: Phase 2 Details Lead Sponsor: AbbVie (prior sponsor, Abbott)