| CNS | Central Nervous System |
| DMT | Disease-Modifying Treatment |
| EDSS | Expanded Disability Status Scale |
| IFN | Interferon |
| IL | Interleukin |
| IQR | Interquartile Range |
| MRI | Magnetic Resonance Imaging |
| MS | Multiple Sclerosis |
| RRMS | Relapsing–Remitting Multiple Sclerosis |
| SD | Standard Deviation |
| sGFAP | Serum Glial Fibrillary Acidic Protein |
| SIMOA | Single-Molecule Array |
| SmPC | Summary of Product Characteristics |
| sNfL | Serum Neurofilament Light Chain |
| STROBE | Strengthening the Reporting of Observational Studies in Epidemiology |
| S1P | Sphingosine 1-Phosphate |
| Th | T Helper |
| TPR | Therapeutic Positioning Report |