[Translated article] Alemtuzumab in relapsing-remitting multiple sclerosis in clinical practice: Annual NEDA-3...

The effectiveness of alemtuzumab in patients with relapsing-remitting multiple sclerosis (RRMS) have been demonstrated in clinical trials. The primary endpoint was to describe the annual effectiveness of alemtuzumab over a 4-year period, according to the different parameters of the NEDA-3 concept (no evidence of disease activity) in clinical practice.

A retrospective, observational multicentric open study of patients with RRMS treated with alemtuzumab between 2015 and 2024. Effectiveness was assessed according to different parameters of the NEDA-3 concept (absence of relapses, stability in disability status according to the EDSS scale, and absence of new lesions and/or contrast enhancement in brain magnetic resonance imaging) with annual follow-up for up to four years.

A cohort of 32 patients (71.9% women, mean age 40.3 ± 11 years) were included. The proportion of patients achieving NEDA-3 was 51.7% (15/29) in the first year, 56.2% (12/26) in the second year, 47.4% (9/19) in the third year, and 47.1% (8/17) in the fourth year. At the end of the study, 82% of patients remained relapse-free, 59% had stable disability according to the EDSS scale, and over 47% were free of radiological activity.

Alemtuzumab has proven to be effective, over 4 years, in clinical practice in patients with RRMS according to the different parameters of the NEDA-3 concept.