Theravance Biopharma to Present New Ampreloxetine Analyses in Neurogenic Orthostatic Hypotension (nOH) at the 77th Annual Meeting of the American Academy of Neurology

Core Insights - Theravance Biopharma is presenting new analyses of the Phase 3 program for ampreloxetine at the upcoming AAN Meeting, highlighting its selective pharmacodynamic profile [1][2] - The ongoing CYPRESS Study 197 aims to confirm the efficacy of ampreloxetine in treating neurogenic orthostatic hypotension (nOH) in patients with multiple system atrophy (MSA) [1][4] Company Overview - Theravance Biopharma focuses on developing innovative therapies, including ampreloxetine, a once-daily norepinephrine reuptake inhibitor for symptomatic nOH in MSA patients [3][9] - The company has received Orphan Drug Designation for ampreloxetine in the U.S. and plans to file a New Drug Application (NDA) if ongoing studies yield positive results [3] Clinical Study Details - The CYPRESS Study 197 is a multi-center, randomized withdrawal study evaluating the efficacy of ampreloxetine after 20 weeks of treatment, with a primary endpoint of change in the Orthostatic Hypotension Symptom Assessment (OHSA) composite score [4] - Previous studies (Study 169 and Study 170) indicated that while Study 169 did not meet its primary endpoint, a subgroup analysis suggested significant benefits for MSA patients, showing a 72% reduction in treatment failure odds with ampreloxetine [5][6] Disease Context - Multiple system atrophy (MSA) is a progressive disorder affecting movement and autonomic functions, with approximately 50,000 patients in the U.S., and 70-90% experiencing nOH symptoms [7][8] - Neurogenic orthostatic hypotension (nOH) is characterized by significant drops in blood pressure upon standing, leading to debilitating symptoms such as dizziness and fainting [8]