Autoimmune Encephalitis (AE)

The POLARIS study is designed to evaluate how well efgartigimod PH20 SC may work (called "efficacy") and how safe it is for people diagnosed with Autoimmune Encephalitis (AIE). The study consists of 4 parts: in part A participants will receive efgartigimod SC; in part B, participants will be randomized to receive either efgartigimod SC or placebo; in part C, participants who completed part B will receive efgartigimod SC; in part D, participants who completed part C will be observed after their last dose of efgartigimod SC. If AIE symptoms return, efgartigimod SC treatment may be restarted during this time. The maximum overall study duration for participants is up to 3 years. More information can be found in clinicaltrials.argenx.com/polaris

This study is an open-label, exploratory, prospective clinical trial with dose escalation(according to "3+3" design), to evaluate the safety and tolerability of QH103(Universal CD19 CAR-γδT Cell Injection)in the treatment of recurrent/refractory antibody-mediated neurological autoimmune diseases.

This single-arm, open-label investigator-initiated trial (IIT) evaluates the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of RD06-05 in patients with autoimmune neurological diseases, including Multiple Sclerosis (MS), Myasthenia Gravis (MG), Chronic Inflammatory Demyelinating Polyneuropathy (CIDP), Autoimmune Encephalitis (AE), and other B-cell-mediated neuroautoimmune disorders. In this study, the dose of CAR-T cells administered is 10×10⁶ CAR⁺T cells per kilogram of body weight. Investigators may decide whether to add other dose groups based on the subjects' safety data, pharmacokinetic (PK) data, pharmacodynamic (PD) data, and preliminary efficacy data. For each indication, 6 to 9 subjects will be enrolled, with a total of 24 to 36 subjects planned for enrollment in the entire study.

This study aims to evaluate the effectiveness of \[18F\]-DPA-714 PET imaging in detecting neuroimmune activity in patients with autoimmune encephalitis (AE). The primary objective is to compare \[18F\]-DPA-714 binding in AE patients to healthy controls.