• Regulatory authorities in Spain and Poland have approved the inclusion of Multiple System Atrophy (MSA) patients in BioArctic's ongoing EXIST Phase 2a trial of exidavnemab, an alpha-synuclein antibody.
• The expanded trial will recruit 12 MSA patients in addition to the 24 participants with Parkinson's disease, evaluating safety, tolerability, and biomarkers in plasma, cerebrospinal fluid, and through digital measurements.
• MSA is a rapidly progressive, fatal rare disease with no current treatments to slow progression, affecting fewer than 42,000 people in the U.S. with patients typically surviving only 6-10 years after symptom onset.