The IEDAT-05-2024 study aims to provide EryDex (dexamethasone sodium phosphate encapsulated into autologous erythrocytes) treatment to all participants in the IEDAT-04-2022 (NEAT) study, who complete the study assessments, do not -have safety contraindications to continuation of treatment, and who provide informed consent. The open-label extension (OLE) treatment period will be 12 months. Participants will be considered to have completed the study when Visit 14 (Safety Follow-up) has been performed.