Risk of stroke under disease modifying therapies for multiple sclerosis: a systematic review

Background: Epidemiological research indicates a heightened incidence of cerebrovascular disorders among patients with multiple sclerosis (MS). Objectives: The aim of the present systematic review was to investigate the potential association between disease modifying therapies (DMTs) and the risk of...

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Main Authors: Maria-Ioanna Stefanou, Aikaterini Theodorou, Annerose Mengel, Konstantinos Melanis, Christos Bakirtzis, Vasileios Giannopapas, Dimitrios K. Kitsos, Markus Kowarik, Katharina Feil, Dimitrios Tzanetakos, Vasiliki Zouvelou, Elizabeth Andreadou, John S. Tzartos, Sotirios Giannopoulos, Georgios Tsivgoulis
Format: Article
Language:English
Published: SAGE Publishing 2025-05-01
Series:Therapeutic Advances in Neurological Disorders
Online Access:https://doi.org/10.1177/17562864251321669
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author Maria-Ioanna Stefanou
Aikaterini Theodorou
Annerose Mengel
Konstantinos Melanis
Christos Bakirtzis
Vasileios Giannopapas
Dimitrios K. Kitsos
Markus Kowarik
Katharina Feil
Dimitrios Tzanetakos
Vasiliki Zouvelou
Elizabeth Andreadou
John S. Tzartos
Sotirios Giannopoulos
Georgios Tsivgoulis
author_facet Maria-Ioanna Stefanou
Aikaterini Theodorou
Annerose Mengel
Konstantinos Melanis
Christos Bakirtzis
Vasileios Giannopapas
Dimitrios K. Kitsos
Markus Kowarik
Katharina Feil
Dimitrios Tzanetakos
Vasiliki Zouvelou
Elizabeth Andreadou
John S. Tzartos
Sotirios Giannopoulos
Georgios Tsivgoulis
author_sort Maria-Ioanna Stefanou
collection DOAJ
description Background: Epidemiological research indicates a heightened incidence of cerebrovascular disorders among patients with multiple sclerosis (MS). Objectives: The aim of the present systematic review was to investigate the potential association between disease modifying therapies (DMTs) and the risk of stroke in MS patient populations. Data sources and methods: A systematic literature search was performed in MEDLINE and SCOPUS databases up to April 6, 2024, to identify randomized-controlled clinical trials (RCT), registry-based and cohort-studies, case-series, and case-reports reporting on acute ischemic stroke (AIS) or intracerebral hemorrhage (ICH) in MS patients under different DMTs. Results: Twenty-one studies were included: 1 RCT, 6 registry-based or cohort studies, 2 case-series and 11 case-reports. Overall, DMTs appear to reduce the risk of stroke in MS patients, with DMT exposure linked to a 50% reduction of the risk of stroke compared to no DMT exposure. Although glatiramer acetate and dimethyl fumarate appear to lower the risk of stroke, concerns about fingolimod exists due to an observed elevated risk for ischemic heart disease and hypertension. Despite the absence of detected safety concerns with alemtuzumab at the MS population level, alemtuzumab-related complications, although rare, signal the need for heightened clinical vigilance. Similarly, β-interferons have been linked to life-threatening adverse events, comprising thrombotic thrombocytopenic purpura-hemolytic uremic syndrome (TTP-HUS). No associations between the risk of stroke and other DMTs, comprising natalizumab and teriflunomide, were detected; yet, newly approved DMTs were underrepresented. Conclusion: These findings highlight the importance of personalizing DMT selection and monitoring cardiovascular risk factors to reduce stroke risk in patients with MS. Trial registration: PROSPERO CRD42024534470.
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spelling doaj-art-65cfd73d7ceb4d5fbe614921a62e89b92025-08-20T03:13:07ZengSAGE PublishingTherapeutic Advances in Neurological Disorders1756-28642025-05-011810.1177/17562864251321669Risk of stroke under disease modifying therapies for multiple sclerosis: a systematic reviewMaria-Ioanna StefanouAikaterini TheodorouAnnerose MengelKonstantinos MelanisChristos BakirtzisVasileios GiannopapasDimitrios K. KitsosMarkus KowarikKatharina FeilDimitrios TzanetakosVasiliki ZouvelouElizabeth AndreadouJohn S. TzartosSotirios GiannopoulosGeorgios TsivgoulisBackground: Epidemiological research indicates a heightened incidence of cerebrovascular disorders among patients with multiple sclerosis (MS). Objectives: The aim of the present systematic review was to investigate the potential association between disease modifying therapies (DMTs) and the risk of stroke in MS patient populations. Data sources and methods: A systematic literature search was performed in MEDLINE and SCOPUS databases up to April 6, 2024, to identify randomized-controlled clinical trials (RCT), registry-based and cohort-studies, case-series, and case-reports reporting on acute ischemic stroke (AIS) or intracerebral hemorrhage (ICH) in MS patients under different DMTs. Results: Twenty-one studies were included: 1 RCT, 6 registry-based or cohort studies, 2 case-series and 11 case-reports. Overall, DMTs appear to reduce the risk of stroke in MS patients, with DMT exposure linked to a 50% reduction of the risk of stroke compared to no DMT exposure. Although glatiramer acetate and dimethyl fumarate appear to lower the risk of stroke, concerns about fingolimod exists due to an observed elevated risk for ischemic heart disease and hypertension. Despite the absence of detected safety concerns with alemtuzumab at the MS population level, alemtuzumab-related complications, although rare, signal the need for heightened clinical vigilance. Similarly, β-interferons have been linked to life-threatening adverse events, comprising thrombotic thrombocytopenic purpura-hemolytic uremic syndrome (TTP-HUS). No associations between the risk of stroke and other DMTs, comprising natalizumab and teriflunomide, were detected; yet, newly approved DMTs were underrepresented. Conclusion: These findings highlight the importance of personalizing DMT selection and monitoring cardiovascular risk factors to reduce stroke risk in patients with MS. Trial registration: PROSPERO CRD42024534470.https://doi.org/10.1177/17562864251321669
spellingShingle Maria-Ioanna Stefanou
Aikaterini Theodorou
Annerose Mengel
Konstantinos Melanis
Christos Bakirtzis
Vasileios Giannopapas
Dimitrios K. Kitsos
Markus Kowarik
Katharina Feil
Dimitrios Tzanetakos
Vasiliki Zouvelou
Elizabeth Andreadou
John S. Tzartos
Sotirios Giannopoulos
Georgios Tsivgoulis
Risk of stroke under disease modifying therapies for multiple sclerosis: a systematic review
Therapeutic Advances in Neurological Disorders
title Risk of stroke under disease modifying therapies for multiple sclerosis: a systematic review
title_full Risk of stroke under disease modifying therapies for multiple sclerosis: a systematic review
title_fullStr Risk of stroke under disease modifying therapies for multiple sclerosis: a systematic review
title_full_unstemmed Risk of stroke under disease modifying therapies for multiple sclerosis: a systematic review
title_short Risk of stroke under disease modifying therapies for multiple sclerosis: a systematic review
title_sort risk of stroke under disease modifying therapies for multiple sclerosis a systematic review
url https://doi.org/10.1177/17562864251321669
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