Topadur Pharma AG Secures FDA Orphan Drug Designation for TOP-N53 Targeting Digital Ulcers in Systemic Sclerosis
News 09.09.2025 Topadur Pharma AG today announced that the U.S. Food and Drug Administration (FDA) has granted Orphan Drug Designation to its investigational therapy TOP-N53 for the treatment of digital ulcersin patients with systemic sclerosis. Systemic sclerosis is a rare, life-threatening autoimmune disease characterized by fibrosis, vascular damage, and chronic digital ulcers that...