Alterity Therapeutics Presents Promising Impact of ATH434 on Orthostatic Hypotension and Disease Progression in MSA at the 36th International Symposium on the Autonomic Nervous System

Core Insights - Alterity Therapeutics announced promising results from the ATH434-201 Phase 2 clinical trial for Multiple System Atrophy (MSA), highlighting the drug's potential to impact treatment and disease progression significantly [1][2] Group 1: Clinical Trial Results - The ATH434-201 trial was a randomized, double-blind, placebo-controlled study involving 77 adults, assessing the efficacy, safety, and pharmacokinetics of ATH434 over 12 months [8] - Severe orthostatic hypotension (OH) was observed in 29.2% of participants in the 75 mg dose group, compared to 4% in the 50 mg group and 4.5% in the placebo group, indicating a significant baseline difference [4] - The efficacy signal in the 75 mg dose group improved from -2.4 to -2.8 points when controlling for OH, enhancing the relative treatment effect from 30% to 35% [4] Group 2: Efficacy and Safety - ATH434 demonstrated stability in OH symptoms across both dose groups, while placebo patients worsened by approximately 6 points over 52 weeks [5] - The drug showed clinically and statistically significant improvements on the modified Unified Multiple System Atrophy Rating Scale (UMSARS) Part I, indicating its potential effectiveness in managing MSA symptoms [8] - ATH434 was well tolerated, with adverse event rates similar to placebo and no serious adverse events attributed to the drug [8] Group 3: Future Development - The company is actively planning Phase 3 trials and preparing for interactions with the FDA, aiming to bring a meaningful treatment option to MSA patients [2][7] - ATH434 has received Fast Track Designation and Orphan Drug Designation from the FDA and the European Commission, underscoring its potential as a treatment for MSA [7] Group 4: Background on MSA - Multiple System Atrophy (MSA) is a rare neurodegenerative disease affecting up to 50,000 individuals in the U.S., characterized by autonomic dysfunction and rapid disease progression [9] - Currently, there are no approved drugs that can slow the progression of MSA, highlighting the need for effective treatments like ATH434 [9] Group 5: Company Overview - Alterity Therapeutics is focused on developing disease-modifying therapies for neurodegenerative diseases, with ATH434 as its lead candidate showing promising clinical efficacy [10] - The company is based in Melbourne, Australia, and San Francisco, California, and is dedicated to creating innovative treatments for patients with neurodegenerative conditions [10]