Ionis Pharmaceuticals Announces Phase 1/2 Results for Angelman Syndrome Treatment
Ionis Pharmaceuticals, Inc. (NASDAQ:IONS) today announced positive results from the completed multiple ascending dose (MAD) portion of the Phase 1/2 open-label study of ION582 in people with Angelman syndrome (AS) demonstrating consistent and encouraging clinical improvement on measures assessing all functional domains including communication, cognition and motor function. Overall, 97% of people in the medium and high dose groups saw an improvement in overall AS symptoms as measured by the Symptoms of Angelman Syndrome–Clinician Global Impression-Change (SAS-CGI-C). ION582 showed favorable safety and tolerability at all dose levels in the study. Detailed results will be presented in a company webcast today and at the 2024 Angelman Syndrome Foundation (ASF) Family Conference in Sandusky, Ohio on July 24, 2024.