Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS Study

Background: Cladribine, an oral prodrug, penetrates the blood–brain barrier, impacting biomarkers of disease progression within the central nervous system. Objectives: Describe disease activity in cladribine tablets (CladT)-treated people with highly active relapsing multiple sclerosis (pwRMS) using...

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Main Authors: Klaus Schmierer, Heinz Wiendl, Frederik Barkhof, Xavier Montalban, Anat Achiron, Tobias Derfuss, Andrew Chan, Suzanne Hodgkinson, Alexandre Prat, Letizia Leocani, Finn Sellebjerg, Patrick Vermersch, Hulin Jin, Laura Sponton, Anita Chudecka, Lidia Gardner, Nicola De Stefano
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Language:English
Published: SAGE Publishing 2025-07-01
Series:Therapeutic Advances in Neurological Disorders
Online Access:https://doi.org/10.1177/17562864251351760
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author Klaus Schmierer
Heinz Wiendl
Frederik Barkhof
Xavier Montalban
Anat Achiron
Tobias Derfuss
Andrew Chan
Suzanne Hodgkinson
Alexandre Prat
Letizia Leocani
Finn Sellebjerg
Patrick Vermersch
Hulin Jin
Laura Sponton
Anita Chudecka
Lidia Gardner
Nicola De Stefano
author_facet Klaus Schmierer
Heinz Wiendl
Frederik Barkhof
Xavier Montalban
Anat Achiron
Tobias Derfuss
Andrew Chan
Suzanne Hodgkinson
Alexandre Prat
Letizia Leocani
Finn Sellebjerg
Patrick Vermersch
Hulin Jin
Laura Sponton
Anita Chudecka
Lidia Gardner
Nicola De Stefano
author_sort Klaus Schmierer
collection DOAJ
description Background: Cladribine, an oral prodrug, penetrates the blood–brain barrier, impacting biomarkers of disease progression within the central nervous system. Objectives: Describe disease activity in cladribine tablets (CladT)-treated people with highly active relapsing multiple sclerosis (pwRMS) using clinical outcomes and biomarkers. Design: MAGNIFY-MS was an open-label, single-arm, phase IV trial with four sub-studies. Participants were grouped by previous treatment (Tx); Tx-naïve versus Tx-experienced; those with previous exposure to second-line therapies were excluded. This analysis describes cerebrospinal fluid (CSF) and optical coherence tomography (OCT) sub-studies. CSF sub-study participants were stratified by the number of oligoclonal bands (OCBs) at baseline (≥2/≥4). Methods: Logistic regression analysis is reported for no evidence of disease activity (NEDA)-3 and no evidence of progression or active disease (NEPAD) at Year (Y)1 and Y2, and annualized relapse rate (ARR) at Y2. Changes in intrathecal (OCBs, kappa free light chain [KFLC], immunoglobulin [Ig]G and IgM indices), OCT measures, and neuroaxonal degeneration (neurofilament light chain [NfL]) biomarkers are reported at baseline, month (M)12, and M24. Results: MAGNIFY-MS included 270 pwRMS; 28 and 36 were included in the CSF and OCT sub-studies, respectively. In Y2, estimated rates of NEDA-3 were 64.1% overall and 69.1% in the Tx-naïve group. The estimated rate of NEPAD overall was 60.2% in Y2. The estimated ARR was 0.09 from baseline to M24 (Tx-naïve participants, 0.04). In participants with ≥2 OCBs at baseline ( n  = 17), 76.5% had OCB reduction or disappearance at least once in the study. KFLC and IgG indices were reduced at M24 versus baseline. Sustained reductions were observed in median NfL, while IgG and IgM remained within normal ranges for most participants. Mean OCT measurements showed no retinal nerve fiber thinning. Conclusion: For CladT-treated pwRMS, disease activity and biomarkers of intrathecal inflammation and neuroaxonal damage were reduced versus baseline. Trial registration: ClinicalTrials.gov identifier, NCT03364036. Date registered: June 12, 2017. Date first patient enrolled: May 28, 2018. https://clinicaltrials.gov/study/NCT03364036 . Extension study ClinicalTrials.gov Identifier: NCT04783935. Date registered: March 05, 2021. Date first patient enrolled: March 10, 2021. https://clinicaltrials.gov/study/NCT04783935 .
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spelling doaj-art-6164f71b63bf47209d5a9e24e30d0de32025-08-20T03:16:01ZengSAGE PublishingTherapeutic Advances in Neurological Disorders1756-28642025-07-011810.1177/17562864251351760Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS StudyKlaus SchmiererHeinz WiendlFrederik BarkhofXavier MontalbanAnat AchironTobias DerfussAndrew ChanSuzanne HodgkinsonAlexandre PratLetizia LeocaniFinn SellebjergPatrick VermerschHulin JinLaura SpontonAnita ChudeckaLidia GardnerNicola De StefanoBackground: Cladribine, an oral prodrug, penetrates the blood–brain barrier, impacting biomarkers of disease progression within the central nervous system. Objectives: Describe disease activity in cladribine tablets (CladT)-treated people with highly active relapsing multiple sclerosis (pwRMS) using clinical outcomes and biomarkers. Design: MAGNIFY-MS was an open-label, single-arm, phase IV trial with four sub-studies. Participants were grouped by previous treatment (Tx); Tx-naïve versus Tx-experienced; those with previous exposure to second-line therapies were excluded. This analysis describes cerebrospinal fluid (CSF) and optical coherence tomography (OCT) sub-studies. CSF sub-study participants were stratified by the number of oligoclonal bands (OCBs) at baseline (≥2/≥4). Methods: Logistic regression analysis is reported for no evidence of disease activity (NEDA)-3 and no evidence of progression or active disease (NEPAD) at Year (Y)1 and Y2, and annualized relapse rate (ARR) at Y2. Changes in intrathecal (OCBs, kappa free light chain [KFLC], immunoglobulin [Ig]G and IgM indices), OCT measures, and neuroaxonal degeneration (neurofilament light chain [NfL]) biomarkers are reported at baseline, month (M)12, and M24. Results: MAGNIFY-MS included 270 pwRMS; 28 and 36 were included in the CSF and OCT sub-studies, respectively. In Y2, estimated rates of NEDA-3 were 64.1% overall and 69.1% in the Tx-naïve group. The estimated rate of NEPAD overall was 60.2% in Y2. The estimated ARR was 0.09 from baseline to M24 (Tx-naïve participants, 0.04). In participants with ≥2 OCBs at baseline ( n  = 17), 76.5% had OCB reduction or disappearance at least once in the study. KFLC and IgG indices were reduced at M24 versus baseline. Sustained reductions were observed in median NfL, while IgG and IgM remained within normal ranges for most participants. Mean OCT measurements showed no retinal nerve fiber thinning. Conclusion: For CladT-treated pwRMS, disease activity and biomarkers of intrathecal inflammation and neuroaxonal damage were reduced versus baseline. Trial registration: ClinicalTrials.gov identifier, NCT03364036. Date registered: June 12, 2017. Date first patient enrolled: May 28, 2018. https://clinicaltrials.gov/study/NCT03364036 . Extension study ClinicalTrials.gov Identifier: NCT04783935. Date registered: March 05, 2021. Date first patient enrolled: March 10, 2021. https://clinicaltrials.gov/study/NCT04783935 .https://doi.org/10.1177/17562864251351760
spellingShingle Klaus Schmierer
Heinz Wiendl
Frederik Barkhof
Xavier Montalban
Anat Achiron
Tobias Derfuss
Andrew Chan
Suzanne Hodgkinson
Alexandre Prat
Letizia Leocani
Finn Sellebjerg
Patrick Vermersch
Hulin Jin
Laura Sponton
Anita Chudecka
Lidia Gardner
Nicola De Stefano
Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS Study
Therapeutic Advances in Neurological Disorders
title Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS Study
title_full Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS Study
title_fullStr Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS Study
title_full_unstemmed Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS Study
title_short Clinical and mechanistic effects of cladribine in relapsing multiple sclerosis: 2-year results from the MAGNIFY-MS Study
title_sort clinical and mechanistic effects of cladribine in relapsing multiple sclerosis 2 year results from the magnify ms study
url https://doi.org/10.1177/17562864251351760
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