Descartes-08: Sustained Efficacy in Myasthenia Gravis as Cartesian Prepares for Phase III Trial on April 09, 2025 Autoimmune Diseases Autologous Anti-BCMA-CAR-mRNA-transfected CD8+ T-lymphocytes CAR-T Cartesian Clinical Trials gMG mRNA-based Myasthenia Gravis Phase III AURORA trial +