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November 2021; 8 (6) ArticleOpen Access

Prognostic Accuracy of NEDA-3 in Long-term Outcomes of Multiple Sclerosis

View ORCID ProfileLuca Prosperini, View ORCID ProfileSerena Ruggieri, Shalom Haggiag, Carla Tortorella, Carlo Pozzilli, Claudio Gasperini
First published August 9, 2021, DOI: https://doi.org/10.1212/NXI.0000000000001059
Luca Prosperini
From the Department of Neurosciences (L.P., S.H., C.T., C.G.), S. Camillo-Forlanini Hospital; Department of Human Neurosciences (S.R., C.P.), Sapienza University; and Neuroimmunology Unit (S.R.), Santa Lucia Foundation, Rome, Italy.
MD, PhD
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  • ORCID record for Luca Prosperini
Serena Ruggieri
From the Department of Neurosciences (L.P., S.H., C.T., C.G.), S. Camillo-Forlanini Hospital; Department of Human Neurosciences (S.R., C.P.), Sapienza University; and Neuroimmunology Unit (S.R.), Santa Lucia Foundation, Rome, Italy.
MD, PhD
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  • For correspondence: serena.ruggieri@gmail.com
Shalom Haggiag
From the Department of Neurosciences (L.P., S.H., C.T., C.G.), S. Camillo-Forlanini Hospital; Department of Human Neurosciences (S.R., C.P.), Sapienza University; and Neuroimmunology Unit (S.R.), Santa Lucia Foundation, Rome, Italy.
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  • For correspondence: lvshalom@hotmail.com
Carla Tortorella
From the Department of Neurosciences (L.P., S.H., C.T., C.G.), S. Camillo-Forlanini Hospital; Department of Human Neurosciences (S.R., C.P.), Sapienza University; and Neuroimmunology Unit (S.R.), Santa Lucia Foundation, Rome, Italy.
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  • For correspondence: carla.tortorella@gmail.com
Carlo Pozzilli
From the Department of Neurosciences (L.P., S.H., C.T., C.G.), S. Camillo-Forlanini Hospital; Department of Human Neurosciences (S.R., C.P.), Sapienza University; and Neuroimmunology Unit (S.R.), Santa Lucia Foundation, Rome, Italy.
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  • For correspondence: carlo.pozzilli@uniroma1.it
Claudio Gasperini
From the Department of Neurosciences (L.P., S.H., C.T., C.G.), S. Camillo-Forlanini Hospital; Department of Human Neurosciences (S.R., C.P.), Sapienza University; and Neuroimmunology Unit (S.R.), Santa Lucia Foundation, Rome, Italy.
MD, PhD
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  • For correspondence: c.gasperini@libero.it
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Prognostic Accuracy of NEDA-3 in Long-term Outcomes of Multiple Sclerosis
Luca Prosperini, Serena Ruggieri, Shalom Haggiag, Carla Tortorella, Carlo Pozzilli, Claudio Gasperini
Neurol Neuroimmunol Neuroinflamm Nov 2021, 8 (6) e1059; DOI: 10.1212/NXI.0000000000001059

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Abstract

Background and Objectives To estimate the proportions of patients with relapsing-remitting multiple sclerosis who despite achieving the no evidence of disease activity-3 (NEDA-3) status in the first 2 treatment years experienced relapse-associated worsening (RAW) or progression independent from relapse activity (PIRA) in the following years.

Methods We selected patients with NEDA-3—defined as no relapse, no disability worsening, and no MRI activity—in the first 2 years of either glatiramer acetate or interferon beta as initial treatment. We estimated the long-term probability of subsequent RAW and PIRA (considered as 2 contrasting outcomes) by cumulative incidence functions. Competing risk regressions were used to identify the baseline (i.e., at treatment start) predictors of RAW and PIRA.

Results Of 687 patients, 224 (32.6%) had NEDA-3 in the first 2 treatment years. After a median follow-up time of 12 years from treatment start, 58 patients (26%) experienced disability accrual: 31 (14%) had RAW and 27 (12%) had PIRA. RAW was predicted by the presence of >9 T2 lesions (subdistribution hazard ratio [SHR] = 3.92, p = 0.012) and contrast-enhancing lesions (SHR = 2.38, p = 0.047) on baseline MRI scan and either temporary or permanent discontinuation of the initial treatment (SHR = 1.11, p = 0.015). PIRA was predicted by advancing age (SHR = 1.05, p = 0.036 for each year increase) and presence of ≥1 spinal cord lesion on baseline MRI scan (SHR = 4.08, p = 0.016).

Discussion The adoption of NEDA-3 criteria led to prognostic misclassification in 1 of 4 patients. Different risk factors were associated with RAW and PIRA, suggesting alternative mechanisms for disability accrual.

Classification of Evidence This study provides Class II evidence that in patients with RRMS who attained NEDA-3 status, subsequent RAW was associated with baseline MRI activity and discontinuation of treatment and PIRA was associated with age and the presence of baseline spinal cord lesions.

Glossary

CELs=
contrast-enhancing lesions;
CIF=
cumulative incidence function;
DMTs=
disease-modifying treatments;
EDSS=
Expanded Disability Status Scale;
GA=
glatiramer acetate;
IFNB=
Interferon beta;
NEDA-3=
no evidence of disease activity-3;
PIRA=
progression independent of relapse activity;
RAW=
relapse-associated worsening;
RRMS=
relapsing-remitting multiple sclerosis;
SHR=
subdistribution hazard ratio;
MS=
multiple sclerosis

Footnotes

  • Go to Neurology.org/NN for full disclosures. Funding information is provided at the end of the article.

  • The Article Processing Charge was funded by the authors.

  • Received May 24, 2021.
  • Accepted in final form July 6, 2021.
  • Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND), which permits downloading and sharing the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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Neurology - Neuroimmunology Neuroinflammation: 10 (6)

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