ArticleJournal of central nervous system disease2022
The sequential natalizumab - alemtuzumab therapy in patients with relapsing forms of multiple sclerosis (SUPPRESS) trial - Part I: Rationale and objectives.
Article in Journal of central nervous system disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03135249 (Sequential Natalizumab - Alemtuzumab Therapy in Patients With Relapsing Forms of Multiple Sclerosis), which is not on this map. Not yet cited in PubMed.
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Sequential Natalizumab - Alemtuzumab Therapy in Patients With Relapsing Forms of Multiple Sclerosis (SUPPRESS)
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9 authors.
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Abstract
Background: Natalizumab is a recombinant humanized monoclonal antibody (mAb) against α4-integrin that is approved for relapsing forms of multiple sclerosis (MS). Natalizumab is associated with an increased risk of developing progressive multifocal leukoencephalopathy (PML), and with disease reactivation after cessation of treatment that is likely mediated by an accumulation of pro-inflammatory lymphocytes in the blood during therapy. Alemtuzumab is a mAb against CD52 that reduces the number of peripheral lymphocytes. Rationale: To determine if treatment with alemtuzumab after natalizumab reduces disease activity in patients with relapsing forms of MS. This review article will outline the rationale and objectives of the sequential natalizumab - alemtuzumab therapy in patients with relapsing forms of multiple sclerosis (SUPPRESS; ClinicalTrials.gov ID: NCT03135249) trial in greater detail than would be feasible in a manuscript that summarizes the study results. Methods: The SUPPRESS trial is single arm, open-label, multicenter, efficacy pilot study that aims to establish a disease-free state over a 24-months period in patients who received the natalizumab- alemtuzumab sequential therapy. Participants will be recruited from four different sites. The primary endpoint is the annualized relapse rate (ARR) from the time of cessation of natalizumab treatment. Key secondary endpoint is freedom of relapse at 12-months, the number of new/enlarging T2 lesions on magnetic resonance imaging (MRI), and the number of gadolinium (Gd)-enhancing lesions on MRI. An exploratory endpoint is the Expanded Disability Status Scale (EDSS), retinal nerve fiber layer (RNFL) thickness assessment by optic coherence tomography (OCT) and assessment of quality of life (QoL) measures by a pre-defined, self-administered testing battery. To evaluate immunological effects, blood leukocytes will be collected and immunophenotyped by multi-parameter flow cytometry. Conclusion: The SUPPRESS trial will provide clinical, imaging, and biological data to determine whether sequential natalizumab to alemtuzumab combination therapy establish a disease-free state in patients with relapsing forms of MS.
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