Ultragenyx Announces First Patient Dosed in Aurora Study Evaluating GTX-102 in Additional Angelman Syndrome Genotypes and Age Groups

NOVATO, Calif., Oct. 30, 2025 (GLOBE NEWSWIRE) -- Ultragenyx Pharmaceutical Inc. (NASDAQ: RARE) today announced that the first patient has been dosed in the Aurora study (NCT07157254) evaluating the efficacy and safety of GTX-102 (apazunersen), an investigational antisense oligonucleotide (ASO) for Angelman syndrome (AS). Data from the Aurora study will expand the population of Angelman patients treated to include both younger and older patients and those with other non-deletion AS genotypes not included in ...