Overview Mexiletine for the Treatment of Muscle Cramps in ALS Status: Completed Trial end date: 2016-05-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine if mexiletine is effective for the treatment of muscle cramps in Amyotrophic Lateral Sclerosis (ALS). Phase: Phase 4 Details Lead Sponsor: Bjorn Oskarsson, MDCollaborators: ALS AssociationUniversity of California, DavisTreatments: Mexiletine