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Alifirova VM, Titova MA, Kamenskikh EM, Shaglaeva IS, Pashkovskaya DV, Musina NF, Nikolaeva TN. [Clinical factors and response to therapy with disease-modifying drugs for multiple sclerosis: the experience of the Tomsk region]. Zh Nevrol Psikhiatr Im S S Korsakova 2023; 123:53-59. [PMID: 37560834 DOI: 10.17116/jnevro202312307253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
OBJECTIVE To investigate a disease-modifying drugs (DMD) response in multiple sclerosis (MS) in the Tomsk region population and detect clinical factors associated with the treatment response. MATERIAL AND METHODS A 5-year prospective clinical study included 363 MS patients of the Tomsk region taking DMDs of the «first-line» and «second-line treatments». The response to DMDs therapy and the impact of MS clinical characteristics on response to treatment were assessed. RESULTS Clinical factors associated with resistance to DMD are male gender, partial reduce of the MS onset symptoms, short period of the first remission, severe neurological impairment, high relapse rate and disease progression rate. CONCLUSION Clinical features of MS are crucial factors associated with DMD response and should be used to prescribe DMD. This factor assessment can improve efficacy of the personalized MS treatment.
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Affiliation(s)
| | - M A Titova
- Siberian State Medical University, Tomsk, Russia
| | | | | | | | - N F Musina
- Siberian State Medical University, Tomsk, Russia
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Maltby VE, Lea RA, Monif M, Fabis-Pedrini MJ, Buzzard K, Kalincik T, Kermode AG, Taylor B, Hodgkinson S, McCombe P, Butzkueven H, Barnett M, Lechner-Scott J. Efficacy of Cladribine Tablets as a Treatment for People With Multiple Sclerosis: Protocol for the CLOBAS Study (Cladribine, a Multicenter, Long-term Efficacy and Biomarker Australian Study). JMIR Res Protoc 2021; 10:e24969. [PMID: 34665152 PMCID: PMC8564661 DOI: 10.2196/24969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 05/04/2021] [Accepted: 05/28/2021] [Indexed: 01/26/2023] Open
Abstract
Background Cladribine tablets (marketed as Mavenclad) are a new oral therapy, which has recently been listed on the pharmaceutical benefits scheme in Australia for the treatment of relapsing multiple sclerosis (MS). The current dosing schedule is for 2 courses given a year apart, which has been shown to be effective for treatment of MS for up to 4 years in 75% of patients (based on annualized relapse rate). However, the reinitiation of therapy after year 4 has not been studied. Objective This study aims to evaluate the safety and efficacy of cladribine tablets over a 6-year period, according to no evidence of disease activity 3. Methods This will be a multicenter, 6-year, phase IV, low interventional, observational study that incorporates clinical, hematological, biochemical, epigenetic, radiological and cognitive biomarkers of disease. Participants considered for treatment with cladribine as part of their routine clinical care will be consented to take part in the study. They will be monitored at regular intervals during the initial course of medication administration in years 1 and 2. After year 3, patients will have the option of redosing, if clinically indicated, or to switch to another disease-modifying therapy. Throughout the duration of the study, we will assess blood-based biomarkers including lymphocyte subsets, serum neurofilament light chain, DNA methylation, and RNA analysis as well as magnetic resonance imaging findings (brain volume and/or lesion load) and cognitive performance. Results This study has been approved by the Hunter New England Local Health District Human Research Ethics Committee. Recruitment began in March of 2019 and was completed by June 2021. Conclusions This will be the first long-term efficacy trial of cladribine, which offers reinitiation of therapy in the 3rd year, based on disease activity, after the initial 2 courses. We expect that this study will indicate whether any of the assessed biomarkers can be used to predict treatment efficacy or the need for future reinitiation of cladribine in people with MS. Trial Registration This study is registered with the Australian and New Zealand Clinical Trials Registry (ACTRN12619000257167) with Universal Trial Number (U1111-1228-2165). International Registered Report Identifier (IRRID) DERR1-10.2196/24969
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Affiliation(s)
- Vicki E Maltby
- Department of Neurology, John Hunter Hospital, New Lambton Heights, Australia.,School for Medicine and Public Health, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Rodney A Lea
- School for Medicine and Public Health, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia.,Institute of Health and Biomedical Innovations, Genomics Research Centre, Queensland University of Technology, Kelvin Grove, Australia
| | - Mastura Monif
- Department of Neurosciences, Eastern Health Clinical School, Monash University, Box Hill Hospital, Melbourne, Australia.,Department of Neurology, Alfred Health, Melbourne, Australia.,Department of Neurology, Melbourne Multiple Sclerosis Centre, Melbourne Health, Melbourne, Australia
| | - Marzena J Fabis-Pedrini
- Centre for Neuromuscular and Neurological Disorders, Perron Institute for Neurological and Translational Science, University of Western Australia, Perth, Australia
| | - Katherine Buzzard
- Department of Neurosciences, Eastern Health Clinical School, Monash University, Box Hill Hospital, Melbourne, Australia.,Department of Neurology, Melbourne Multiple Sclerosis Centre, Melbourne Health, Melbourne, Australia
| | - Tomas Kalincik
- Department of Neurology, Melbourne Multiple Sclerosis Centre, Melbourne Health, Melbourne, Australia.,Clinical Outcomes Research (CORe) Unit, Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Allan G Kermode
- Centre for Neuromuscular and Neurological Disorders, Perron Institute for Neurological and Translational Science, University of Western Australia, Perth, Australia.,Institute for Immunology and Infectious Disease, Murdoch University, Perth, Australia
| | - Bruce Taylor
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Suzanne Hodgkinson
- Department of Medicine, University of New South Wales, Sydney, Australia.,Department of Neurology, Liverpool Hospital, Sydney, Australia.,Immune Tolerance Laboratory, Ingham Institute, Sydney, Australia
| | - Pamela McCombe
- Centre for Clinical Research, University of Queensland, Brisbane, Australia
| | - Helmut Butzkueven
- Department of Neurology, Alfred Health, Melbourne, Australia.,Clinical Outcomes Research (CORe) Unit, Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Michael Barnett
- Brain and Mind Centre, University of Sydney, Sydney, Australia.,Sydney Neuroimaging Analysis Centre, Sydney, Australia
| | - Jeannette Lechner-Scott
- Department of Neurology, John Hunter Hospital, New Lambton Heights, Australia.,School for Medicine and Public Health, University of Newcastle, Callaghan, Australia.,Hunter Medical Research Institute, New Lambton Heights, Australia
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Balasa R, Barcutean L, Mosora O, Manu D. Reviewing the Significance of Blood-Brain Barrier Disruption in Multiple Sclerosis Pathology and Treatment. Int J Mol Sci 2021; 22:ijms22168370. [PMID: 34445097 PMCID: PMC8395058 DOI: 10.3390/ijms22168370] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/19/2021] [Accepted: 07/31/2021] [Indexed: 12/27/2022] Open
Abstract
The disruption of blood–brain barrier (BBB) for multiple sclerosis (MS) pathogenesis has a double effect: early on during the onset of the immune attack and later for the CNS self-sustained ‘inside-out’ demyelination and neurodegeneration processes. This review presents the characteristics of BBB malfunction in MS but mostly highlights current developments regarding the impairment of the neurovascular unit (NVU) and the metabolic and mitochondrial dysfunctions of the BBB’s endothelial cells. The hypoxic hypothesis is largely studied and agreed upon recently in the pathologic processes in MS. Hypoxia in MS might be produced per se by the NVU malfunction or secondary to mitochondria dysfunction. We present three different but related terms that denominate the ongoing neurodegenerative process in progressive forms of MS that are indirectly related to BBB disruption: progression independent of relapses, no evidence of disease activity and smoldering demyelination or silent progression. Dimethyl fumarate (DMF), modulators of S1P receptor, cladribine and laquinimode are DMTs that are able to cross the BBB and exhibit beneficial direct effects in the CNS with very different mechanisms of action, providing hope that a combined therapy might be effective in treating MS. Detailed mechanisms of action of these DMTs are described and also illustrated in dedicated images. With increasing knowledge about the involvement of BBB in MS pathology, BBB might become a therapeutic target in MS not only to make it impenetrable against activated immune cells but also to allow molecules that have a neuroprotective effect in reaching the cell target inside the CNS.
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Affiliation(s)
- Rodica Balasa
- Department of Neurology, University of Medicine, Pharmacy, Sciences and Technology “George Emil Palade”, 540136 Targu Mures, Romania;
- Neurology 1 Clinic, Emergency Clinical County Hospital Mures, 540136 Targu Mures, Romania;
| | - Laura Barcutean
- Department of Neurology, University of Medicine, Pharmacy, Sciences and Technology “George Emil Palade”, 540136 Targu Mures, Romania;
- Neurology 1 Clinic, Emergency Clinical County Hospital Mures, 540136 Targu Mures, Romania;
- Correspondence: ; Tel.: +40-745-373947
| | - Oana Mosora
- Neurology 1 Clinic, Emergency Clinical County Hospital Mures, 540136 Targu Mures, Romania;
| | - Doina Manu
- Advanced Research Center Medical and Pharmaceutical, University of Medicine, Pharmacy, Sciences and Technology “George Emil Palade”, 540142 Targu Mures, Romania;
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