A Safety Study in Healthy Volunteers of the Single-Use Autoinjector Containing Placebo of BG9418 Interferon Beta-1a With a 25-Gauge × 1-Inch Needle

This is a single-arm, single-center study in healthy volunteers. This study is designed to evaluate the safety of IM injections using single-use autoinjectors with a 25G × 1" needle. The purpose of this study is not to evaluate study treatment; therefore, all injections will be performed with Avonex placebo only; no active IFNβ-1a will be administered.