Trial of intrathecal rituximab in progressive multiple sclerosis patients with evidence of leptomeningeal contrast enhancement.

Abstract:

BACKGROUND:Leptomeningeal inflammation is associated with increased cortical damage and worse clinical outcomes in MS. It may be detected on contrast-enhanced T2-FLAIR imaging as focal leptomeningeal contrast-enhancement (LME). OBJECTIVE:To assess the safety of intrathecal (IT) rituximab in progressive MS (PMS) and to assess its effects on LME and CSF biomarkers. METHODS:PMS patients had a screening MRI to detect LME. Participants satisfying eligibility criteria underwent two IT administrations of 25 mg rituximab 2 weeks apart. Follow-up lumbar puncture and MRI were performed at 8 and 24 weeks after the first treatment. RESULTS:Of 36 patients screened 15 had LME, 11 consented, and 8 received study treatment. Mean age was 56.7 years and number of LME lesions ranged from 1 to 3. No serious adverse effects occurred. We noted profound reductions in peripheral B cells from baseline to week 2 and 8 with some return at week 24. We also observed transient reductions in CSF B cells and CXCL-13 levels with an increase in BAFF levels. However, the number of LME did not change following treatment. CONCLUSIONS:IT rituximab was well tolerated in PMS patients and had transient effects on CSF biomarkers but did not change LME.

authors

Bhargava P,Wicken C,Smith MD,Strowd RE,Cortese I,Reich DS,Calabresi PA,Mowry EM

doi

10.1016/j.msard.2019.02.013

subject

Has Abstract

pub_date

2019-05-01 00:00:00

pages

136-140

eissn

2211-0348

issn

2211-0356

pii

S2211-0348(19)30069-0

journal_volume

30

pub_type

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