Multiple sclerosis (MS) is a chronic CNS disease with varied symptoms, caused by immune system attacks on myelin. Biotech companies like Biogen, Immunic Therapeutics, Kyverna Therapeutics, Progentos Therapeutics, TG Therapeutics, and Zenas BioPharma are developing new treatments, including BTK inhibitors, CAR-T therapies, and bispecific antibodies. The global MS drug market is expected to grow significantly, offering hope for more effective treatments for different forms of MS.