Multiple Sclerosis Journal | October 6, 2021
Uher T, Havrdova EK, Benkert P, Bergsland N, Krasensky J, Srpova B, Dwyer M, Tyblova M, Meier S, Vaneckova M, Horakova D, Zivadinov R, Leppert D, Kalincik T and Kuhle J
Multiple sclerosis (Houndmills, Basingstoke, England). 2021:13524585211047977
https://doi.org/10.1177/13524585211047977
This study was performed using Simoa Homebrew assay(s).
The added value of neurofilament light chain levels in serum (sNfL) to the concept of no evidence of disease activity-3 (NEDA-3) has not yet been investigated in detail.
To assess whether combination of sNfL with NEDA-3 status improves identification of patients at higher risk of disease activity during the following year.
We analyzed 369 blood samples from 155 early relapsing-remitting MS patients on interferon beta-1a. We compared disease activity, including the rate of brain volume loss in subgroups defined by NEDA-3 status and high or low sNfL (> 90th or < 90th percentile).
In patients with disease activity (EDA-3), those with higher sNFL had higher odds of EDA-3 in the following year than those with low sNFL (86.5% vs 57.9%; OR = 4.25, 95% CI: [2.02, 8.95]; p = 0.0001) and greater whole brain volume loss during the following year (β = −0.36%; 95% CI = [−0.60, −0.13]; p = 0.002). Accordingly, NEDA-3 patients with high sNfL showed numerically higher disease activity (EDA-3) in the following year compared with those with low sNfL (57.1% vs 31.1%).
sNfL improves the ability to identify patients at higher risk of future disease activity, beyond their NEDA-3 status. Measurement of sNfL may assist clinicians in decision-making by providing more sensitive prognostic information.
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