Hyperkinesis

The goal of this clinical trial is to evaluate the efficacy and safety of the investigational drug ASO-GNAO1 (Tianasen) in pediatric patients with c.607G\>A mutation in the GNAO1 gene associated with epilepsy and neurodevelopmental disorder. The main questions it aims to answer are: 1. Does intrathecal administration of ASO-GNAO1 slow or halt the progression of motor and cognitive symptoms? 2. Is ASO-GNAO1 safe and well-tolerated in this patient population? 3. What is the appropriate therapeutic dose? This is an open-label study without a placebo control group due to the rare and severe nature of the disease. All participants will receive the active drug. Participants will: Receive escalating doses of ASO-GNAO1 via intrathecal injection over a 12-month period. Undergo frequent neurological assessments, biomarker testing, and safety monitoring.

Expression of hypokinetic and hyperkinetic motor symptoms in Parkinson's disease (PD) is associated with pathological synchronous oscillations of neuronal activity (local field potential/LFP) in the cortico-subcortical network with a wide frequency range. In the present project, we propose to study cortico-subcortical oscillations and their synchronization in patients operated for PD (subthalamic deep brain stimulation (STN-DBS)) during distinct pharmacological and stimulation conditions (hypokinetic and hyperkinetic), using a simple motor task.