Oligoclonal IgM bands in the cerebrospinal fluid of patients with relapsing MS to inform long-term MS disability
Rocco Capuano, Irati Zubizarreta, Salut Albà-Arbalat, María Sepúlveda, Núria Solà‐Valls, Irene Pulido‐Valdeolivas, Magí Andorrà, Eloy Martínez‐Heras, Elisabeth Solana, Elisabet López-Soley, Carmen Montejo, Yolanda Blanco, José Ignacio Fernández-Velasco, Antonio Gallo, Alvino Bisecco, Pablo Villoslada, Albert Saiz, Sara Llufriú, Luisa María Villar, Elena H. Martínez‐Lapiscina
Abstract
BACKGROUND: Prognostic markers are needed to guide multiple sclerosis (MS) management in the context of large availability of disease-modifying drugs (DMDs). OBJECTIVE: To investigate the role of cerebrospinal fluid (CSF) markers to inform long-term MS outcomes. METHODS: Demographic features, IgM index, oligoclonal IgM bands (OCMB), lipid-specific OCMB, CSF neurofilament light chain protein levels, expanded disability status scale (EDSS), relapses and DMD use over the study period and peripapillary retinal nerve fiber layer (pRNFL) and ganglion cell plus inner plexiform layer (GCIPL) thicknesses in non-optic neuritis eyes (end of follow-up) were collected from relapsing MS (RMS) patients with CSF obtained ⩽2 years after MS onset prospectively followed at the Hospital Clinic of Barcelona. We assessed associations between CSF markers and MS outcomes using multivariable models. RESULTS: = 0.06), higher odds for high-efficacy DMDs use (OR = 4.8; 95% CI = (1.5, 16.1)), thinner pRNFL (β = -4.4; 95% CI = (-8.6, -0.2)) and GCIPL (β = -2.9; 95% CI = (-5.9, +0.05)), and higher rates to EDSS ⩾ 3.0 (HR = 4.4; 95% CI = (1.6, 11.8)) and EDSS ⩾ 4.0 (HR = 5.4; 95% CI = (1.1, 27.1)). No overall associations were found for other CSF markers. CONCLUSION: The presence of OCMB was associated with unfavorable long-term outcomes. OCMB should be determined in RMS to inform long-term prognosis.