New Novartis data further support benefits of Kesimpta® in relapsing MS following switch from oral disease modifying therapies

Core Insights - Novartis announced new data on Kesimpta (ofatumumab) for relapsing multiple sclerosis (RMS) at the ECTRIMS 2025 Annual Meeting, highlighting its efficacy and safety in patients who switched from other therapies [1][2][3] Study Findings - The ARTIOS Phase IIIb study demonstrated a low annualized relapse rate (ARR) of 0.06 over 96 weeks for patients switching to Kesimpta after breakthrough disease on fingolimod or fumarate-based therapies, with over 90% achieving no evidence of disease activity (NEDA-3) [2][6] - The ALITHIOS extension study showed that more than 90% of recently diagnosed treatment-naïve patients on first-line Kesimpta maintained NEDA-3 status at seven years, indicating long-term efficacy [3][6] Safety Profile - No new safety concerns were reported in both studies following the switch to Kesimpta, reinforcing its favorable safety profile [2][3][4] Product Information - Kesimpta is a targeted B-cell therapy administered via subcutaneous injection, approved in over 92 countries, with more than 150,000 patients treated as of August 2025 [5][6] Company Background - Novartis has over 80 years of experience in tackling neurological conditions and continues to develop transformative treatments in multiple sclerosis and other neurological diseases [7]