The purpose of this study is to evaluate the efficacy and safety of ION582 in children and adults with Angelman syndrome caused by a deletion or mutation of the UBE3A gene.
The primary objective of this study is to evaluate the effect of GTX-102 in cognitive function in participants with deletion-type Angelman Syndrome (AS).
The primary objective of the study is to evaluate the long-term safety profile of GTX-102 in participants with Angelman Syndrome (AS)
The overall purpose of this project is to establish the capability of screening for Angelman syndrome (AS) and Prader-Willi syndrome (PWS) in public health newborn screening (NBS) programs, with an aim of developing and validating a screening test for AS and PWS.
This is a longitudinal, observational, nonrandomized, fully remote study enrolling approximately 55 participant-caregiver dyads. The study includes no treatments or interventions, and participants will not be asked to change their current treatments. The objective of this study is to gather sufficient source material videos to develop a scoring system for ASVA and to perform preliminary validation of that scoring system.
This is a two-part, Phase IIa, multicenter, 12-week, open-label study. Up to 56 participants with deletion AS aged 5-17 years (inclusive) will be enrolled in the study.
The purpose of this study is to evaluate the safety and tolerability of ascending doses of ION582 administered intrathecally in participants with Angelman syndrome.
The goal of this study is to conduct a prospective, longitudinal natural history study of children and adults with Angelman Syndrome using investigator-observed and parent-reported outcome measures to obtain data that will be useful for future clinical trials.
This is a phase I, multicenter, non-randomized, adaptive, open-label, multiple ascending, intra-participant, dose-escalation study with a long-term extension (LTE) part and an optional open-label extension (OOE) part. The objective of the study is to investigate the safety, tolerability, PK and PD of RO7248824 administered intrathecally (IT) in participants with AS. Two linked sets of dose escalation cohorts are planned based on two different age groups, namely participants with AS aged ≥ 5 to ≤ 12 years in cohorts A1 to A5 (with at least 2 participants ≤ 8 years old in each cohort) and AS participants aged ≥ 1 to ≤ 4 years in cohorts B1 to B5. The two sets of cohorts will be run in parallel, with each cohort A1 to A5 preceding and gating the linked cohort B1 to B5 (e.g., A1 precedes B1).
The primary objective of the study is to evaluate the safety and tolerability of multiple-ascending doses of GTX-102 administered by intrathecal (IT) injection to participants with Angelman Syndrome (AS).