Researchers at Mitsubishi Tanabe Pharmaceutical America (MTPA) are seeking individuals living with amyotrophic lateral sclerosis (ALS) to participate in a six-month observational study. This study is designed to identify biomarkers to serve as quantifiable, biological, non-clinical measures of Radicava (edaravone) effects on ALS. Observational measures might include assessment of vitals; blood and urine collection; safety assessments; use . . .