Overview Virology Follow up Study in Subjects Previously Treated With Telaprevir Status: Completed Trial end date: 2013-12-01 Target enrollment: Participant gender: Summary Observational follow-up study to assess long-term response to telaprevir and to evaluate changes in Hepatitis C virus over time. Details Lead Sponsor: Vertex Pharmaceuticals IncorporatedCollaborator: Tibotec Pharmaceutical Limited