Overview Simvastatin for mTBI Status: Completed Trial end date: 2017-06-20 Target enrollment: Participant gender: Summary Study of simvastatin in Iraq/Afghanistan Veterans with multiple blast exposure and mTBI. The study will measure substances in cerebrospinal fluid (CSF) that are related to dementing disorders. Phase: Phase 4 Details Lead Sponsor: VA Office of Research and DevelopmentTreatments: PravastatinSimvastatin