Overview Simvastatin as an Add-on Treatment to Interferon-beta-1a for the Treatment of Relapsing-Remitting Multiple Sclerosis Status: Completed Trial end date: 2010-04-01 Target enrollment: Participant gender: Summary This study is to find out if there is any benefit to adding Simvastatin to Interferon-beta-1a in patients with Multiple Sclerosis. Phase: Phase 4 Details Lead Sponsor: BiogenTreatments: Interferon beta-1aInterferon-betaInterferonsSimvastatin