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Dahham J, Hiligsmann M, Kremer I, Khoury SJ, Darwish H, Hosseini H, Hallit S, Evers S, Rizk R. Health-related quality of life and utilities among Lebanese patients with Multiple Sclerosis: A cross-sectional study. Mult Scler Relat Disord 2024; 86:105635. [PMID: 38640585 DOI: 10.1016/j.msard.2024.105635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/29/2024] [Accepted: 04/15/2024] [Indexed: 04/21/2024]
Abstract
OBJECTIVE This study assessed the Health-Related Quality of Life (HRQoL) and utilities of Multiple Sclerosis (MS) patients in Lebanon using generic and MS-specific QoL instruments, categorized by disease severity, and explored factors associated with HRQoL. METHODS This was a cross-sectional, retrospective HRQoL study collecting data through face-to-face interviews using the EQ-5D-5 L and the Multiple Sclerosis International Quality of Life (MusiQoL) questionnaires. We enrolled Lebanese patients aged ≥18 years, diagnosed with MS for >6 months. Patients were categorized by disease severity using the expanded disability status scale (EDSS) scores: 0-3 (mild MS), 4-6.5 (moderate MS), and 7-9 (severe MS). Bivariate and linear regression analyses were performed to study factors associated with HRQoL. RESULTS A total of 210 patients (mean age: 43.3 years; 65.7 % females) were included. The mean EQ-5D-5 L utility score was 0.74. This score decreased significantly with disease severity (p < 0.001 for the trend): 0.93, 0.60, and 0.32 for mild, moderate, and severe MS, respectively. The mean MusiQoL global index score was 71.33 and was significantly lower for severe MS (58.68), than for moderate (65.23) and mild (77.80), (p < 0.001 for the trend). Higher educational level, lower EDSS scores, and longer disease duration were associated significantly with a higher EQ-5D-5 L utility (R2 = 0.67), while employment, lower EDSS scores, and decrease in cognitive difficulties were associated with better MusiQoL utility (R2 = 0.46). CONCLUSIONS This study reveals a significant and gradual deterioration in HRQoL as MS progresses, resulting in low utility scores for patients with severe MS.
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Affiliation(s)
- Jalal Dahham
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands; INSPECT-LB (Institut National de Santé Publique, d'Épidémiologie Clinique et de Toxicologie-Liban), Beirut, Lebanon.
| | - Mickaël Hiligsmann
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands
| | - Ingrid Kremer
- Project Manager Value-Based Health Care at Maastro, Maastricht, the Netherlands
| | - Samia J Khoury
- Nehme and Therese Tohme Multiple Sclerosis Center, American University of Beirut Medical Center, Beirut, Lebanon; Abu-Haidar Neuroscience Institute, American University of Beirut Medical Center, Beirut, Lebanon
| | - Hala Darwish
- Nehme and Therese Tohme Multiple Sclerosis Center, American University of Beirut Medical Center, Beirut, Lebanon; Hariri School of Nursing, American University of Beirut, Beirut, Lebanon; University of Michigan, Ann Arbor, Michigan, United States
| | - Hassan Hosseini
- Service de Neurologie, Hôpital Henri Mondor, Créteil, France
| | - Souheil Hallit
- School of Medicine and Medical Sciences, Holy Spirit University of Kaslik, P.O box 446, Jounieh, Lebanon; Applied Science Research Center, Applied Science Private University, Amman, Jordan
| | - Silvia Evers
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands; Centre for Economic Evaluations and Machine Learning, Trimbos Institute, Utrecht, the Netherlands
| | - Rana Rizk
- INSPECT-LB (Institut National de Santé Publique, d'Épidémiologie Clinique et de Toxicologie-Liban), Beirut, Lebanon; Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Byblos, Lebanon
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Stettner M, Wattjes MP, Krüger K, Pul R, Fleischer M, Achnitz U, Agne H, Bach K, Berkenfeld R, Bongartz U, Brüggemann A, Burgsmüller L, Cohnen J, Deuschl C, Friedrich A, Graziano P, Hackert J, Hapig B, Henkel A, Henrich H, Hükelheim-Görden M, Kratsch L, Kytzia D, Lanzman R, Heusch P, Laufenburg C, Merguet S, Metz U, Montag M, Obeid M, Ornek A, Peters S, Plajer T, Plassmann J, Pump H, Rauchfuss-Hartych B, Reinboldt MP, Seng K, Stauder M, Wettig AK, Wolters A, Yilmam S, Kleinschnitz C. [Consensus recommendations on regional interdisciplinary standardization of MRI diagnostics for multiple sclerosis in the metropolitan area of Essen]. DER NERVENARZT 2023; 94:1123-1128. [PMID: 37594495 PMCID: PMC10684622 DOI: 10.1007/s00115-023-01531-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/03/2023] [Indexed: 08/19/2023]
Abstract
Magnetic resonance imaging (MRI) is of exceptional importance in the diagnostics and monitoring of multiple sclerosis (MS); however, a close interdisciplinary cooperation between neurologists in private practice, (neuro)radiological practices, hospitals or specialized MS centers is only rarely established. In particular, there is a lack of standardized MRI protocols for image acquisition as well as established quality parameters, which guarantee the comparability of MRI records; however, this is a fundamental prerequisite for an effective application of MRI in the treatment of MS patients, e.g., for making the diagnosis or treatment monitoring. To address these challenges a group of neurologists and (neuro)radiologists developed a consensus proposal for standardization of image acquisition, interpretation and transmission of results and for improvement in interdisciplinary cooperation. This pilot project in the metropolitan area of Essen used a modified Delphi process and was based on the most up to date scientific knowledge. The recommendation takes the medical, economic, temporal and practical aspects of MRI in MS into consideration. The model of interdisciplinary cooperation between radiologists and neurologists with the aim of a regional standardization of MRI could serve as an example for other regions of Germany in order to optimize MRI for MS.
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Affiliation(s)
- Mark Stettner
- Klinik für Neurologie, Universitätsmedizin Essen, Universität Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Deutschland.
- Center for Translational Neuro- and Behavioral Sciences (C-TNBS), Universitätsklinikum Essen, Hufelandstraße 55, 45147, Essen, Deutschland.
| | - Mike P Wattjes
- Institut für Diagnostische und Interventionelle Neuroradiologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | | | - Refik Pul
- Klinik für Neurologie, Universitätsmedizin Essen, Universität Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Deutschland
- Center for Translational Neuro- and Behavioral Sciences (C-TNBS), Universitätsklinikum Essen, Hufelandstraße 55, 45147, Essen, Deutschland
| | - Michael Fleischer
- Klinik für Neurologie, Universitätsmedizin Essen, Universität Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Deutschland
- Center for Translational Neuro- and Behavioral Sciences (C-TNBS), Universitätsklinikum Essen, Hufelandstraße 55, 45147, Essen, Deutschland
| | - Ute Achnitz
- Diavero Diagnosezentrum, Heidbergweg 22-24, Essen, Deutschland
| | - Heike Agne
- Praxis für Neurologie, Psychiatrie und Psychotherapie, Bochum, Deutschland
| | - Kathlen Bach
- Nervenstark Praxis für Neurologie und Psychiatrie, Essen, Deutschland
| | | | | | | | - Lars Burgsmüller
- Evangelische Kliniken Essen-Mitte gGmbH, Henricistraße 92, Essen, Deutschland
| | - Joseph Cohnen
- Radiologie der Ruhrradiologie Essen, Rüttenscheider Straße 191, Essen, Deutschland
| | - Cornelius Deuschl
- Institut für Diagnostische und Interventionelle Radiologie und Neuroradiologie, Universitätsmedizin Essen, Essen, Deutschland
| | | | | | - Jana Hackert
- Klinik für Neurologie, Universitätsmedizin Essen, Universität Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Deutschland
- Center for Translational Neuro- and Behavioral Sciences (C-TNBS), Universitätsklinikum Essen, Hufelandstraße 55, 45147, Essen, Deutschland
| | - Beate Hapig
- Radiologie und Nuklearmedizin Am Kennedyplatz, Essen, Deutschland
| | - Andrea Henkel
- Diavero Diagnosezentrum, Heidbergweg 22-24, Essen, Deutschland
| | - Heike Henrich
- Dr. med. Theo Plajer & Dr. med. Heike Henrich, Fachärzte für Radiologie in Essen-Borbeck, Essen, Deutschland
| | | | - Luder Kratsch
- Neuropraxis am EKO, Virchowstraße 39, Oberhausen, Deutschland
| | - Danuta Kytzia
- Praxis Dr. Kytzia, Altenessener Straße 208, Essen, Deutschland
| | - Rotem Lanzman
- Radiologie MH, Schulstraße 13, Mülheim an der Ruhr, Deutschland
| | - Philipp Heusch
- Radiologie MH, Schulstraße 13, Mülheim an der Ruhr, Deutschland
| | | | - Susanne Merguet
- Praxis Dr. Merguet, Gerichtsstraße 32, Essen-Borbeck-Mitte, Deutschland
| | - Uwe Metz
- Ruhrradiologie Essen Henricistraße, Henricistraße 40, Essen, Deutschland
| | - Michael Montag
- Klinik für Radiologie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Münster, Deutschland
| | - Michel Obeid
- Praxis Dr. Obeid - Praktischer Arzt, Kriemhildstraße 8, Gelsenkirchen, Deutschland
| | - Ahmet Ornek
- Radiologie der Ruhrradiologie Essen, Rüttenscheider Straße 191, Essen, Deutschland
| | - Sören Peters
- Ruhrradiologie Gelsenkirchen, Zum Ehrenmal 21, Gelsenkirchen, Deutschland
| | - Theo Plajer
- Dr. med. Theo Plajer & Dr. med. Heike Henrich, Fachärzte für Radiologie in Essen-Borbeck, Essen, Deutschland
| | - Jürgen Plassmann
- Radiologische Gemeinschaftspraxis Mülheim, Schulstraße 13, Mülheim an der Ruhr, Deutschland
| | - Heiko Pump
- Radiologie MH, Schulstraße 13, Mülheim an der Ruhr, Deutschland
| | | | | | - Katja Seng
- Radiologie Bredeneyer Tor, Am Alfredusbad 8, Essen, Deutschland
| | - Michael Stauder
- Neuroradiologie, Alfried Krupp Krankenhaus, Rüttenscheid, Alfried-Krupp-Straße 21, Essen, Deutschland
| | | | - Anna Wolters
- Klinik für Neurologie, Universitätsmedizin Essen, Universität Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Deutschland
- Center for Translational Neuro- and Behavioral Sciences (C-TNBS), Universitätsklinikum Essen, Hufelandstraße 55, 45147, Essen, Deutschland
| | - Sedat Yilmam
- Ruhrradiologie Essen Henricistraße, Henricistraße 40, Essen, Deutschland
| | - Christoph Kleinschnitz
- Klinik für Neurologie, Universitätsmedizin Essen, Universität Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Deutschland
- Center for Translational Neuro- and Behavioral Sciences (C-TNBS), Universitätsklinikum Essen, Hufelandstraße 55, 45147, Essen, Deutschland
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Dahham J, Hiligsmann M, Kremer I, Khoury SJ, Darwish H, Hosseini H, Evers S, Rizk R. The societal costs of multiple sclerosis in Lebanon: a cross-sectional study. Expert Rev Pharmacoecon Outcomes Res 2023; 23:419-430. [PMID: 36820619 DOI: 10.1080/14737167.2023.2184802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
INTRODUCTION This study assessed the societal costs of multiple sclerosis (MS) in Lebanon, categorized by disease severity. METHODS This was a cross-sectional, prevalence-based, bottom-up study using a face-to-face questionnaire. Patients were stratified by disease severity using the expanded disability status scale (EDSS); EDSS scores of 0-3, 4-6.5, and 7-9 indicating respectively mild, moderate, and severe MS. All direct medical, nonmedical, and indirect costs related to reduced productivity were accounted for regardless of who bore them. Costs, collected from various sources, were presented in international US dollars (US$) using the purchasing power parity (PPP) conversion rate. RESULTS We included 210 Lebanese patients (mean age: 43.3 years; 65.7% females). The total annual costs per patient were PPP US$ 33,117 for 2021, 12.4 times higher than the nominal GDP per capita. Direct costs represented 52% (US$ 17,185), direct nonmedical costs 8% (US$ 2,722), and indirect costs 40% (US$ 13, 211) of the mean annual costs. The total annual costs per patient increased with disease severity and were PPP US$ 29,979, PPP US$ 36,125, PPP US$ 39,136 for mild, moderate, and severe MS, respectively. CONCLUSION This study reveals the huge economic burden of MS on the Lebanese healthcare system and society.
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Affiliation(s)
- Jalal Dahham
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Mickaël Hiligsmann
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Ingrid Kremer
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Samia J Khoury
- Nehme and Therese Tohme Multiple Sclerosis Center, American University of Beirut Medical Center, Beirut, Lebanon.,Abu-Haidar Neuroscience Institute, American University of Beirut Medical Center, Beirut, Lebanon
| | - Hala Darwish
- Nehme and Therese Tohme Multiple Sclerosis Center, American University of Beirut Medical Center, Beirut, Lebanon.,Hariri School of Nursing, American University of Beirut, Beirut, Lebanon.,University of Michigan, Ann Arbor, Michigan, United States of America
| | - Hassan Hosseini
- Service de Neurologie, Hôpital Henri Mondor, Créteil, France
| | - Silvia Evers
- Department of Health Services Research, Care and Public Health Research Institute (CAPHRI), Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.,Centre for Economic Evaluations and Machine Learning, Trimbos Institute, Utrecht, The Netherlands
| | - Rana Rizk
- Department of Natural Sciences, Lebanese American University, School of Arts and Sciences, Byblos, Lebanon.,Institut National de Santé Publique, d'Épidémiologie Clinique et de Toxicologie (INSPECT-Lb), Beirut, Lebanon
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Le Berre C, Danese S, Peyrin-Biroulet L. Can we change the natural course of inflammatory bowel disease? Therap Adv Gastroenterol 2023; 16:17562848231163118. [PMID: 37153497 PMCID: PMC10159495 DOI: 10.1177/17562848231163118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 02/01/2023] [Indexed: 05/09/2023] Open
Abstract
Inflammatory bowel diseases (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), are lifelong diseases characterized by chronic inflammation of the gastrointestinal tract leading to its progressive and irreversible destruction. Whether early initiation of IBD-specific therapy impacts the long-term course of the disease remains unclear and has to be further explored in prospective disease-modification trials. Historically, surgery and hospitalization rates have been the surrogate markers to measure disease progression in IBD, providing an overview of the effectiveness of medical therapies. However, neither surgery nor hospitalization necessarily reflects a fail in therapeutic medical management, and many confounding factors make them biased outcomes. The Selecting Endpoints for Disease-Modification Trials consensus has defined the disease-modification endpoints required for these trials, including the impact of the disease on patient's life (health-related quality of life, disability, and fecal incontinence), the mid-term disease complications (bowel damage in CD, IBD-related surgery and hospitalizations, disease extension in UC, extra-intestinal manifestations, permanent stoma, short bowel syndrome), and the development of dysplasia/cancer and mortality in the long term. Most available data in the literature regarding the impact of current therapies on disease progression focused on anti-tumor necrosis factor agents and are based on retrospective or post-hoc studies. Thus, prospective disease-modification trials are pressingly required to explore the effectiveness of early intensified treatment in patients with severe disease or at risk for disease progression.
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Affiliation(s)
| | - Silvio Danese
- Department of Gastroenterology and Digestive
Endoscopy, IRCCS San Raffaele Hospital and Vita-Salute San Raffaele
University, Milan, Italy
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology and Inserm NGERE
U1256, University Hospital of Nancy, University of Lorraine,
Vandoeuvre-lès-Nancy, France
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Treatment and Relapse Prevention of Typical and Atypical Optic Neuritis. Int J Mol Sci 2022; 23:ijms23179769. [PMID: 36077167 PMCID: PMC9456305 DOI: 10.3390/ijms23179769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 12/02/2022] Open
Abstract
Optic neuritis (ON) is an inflammatory condition involving the optic nerve. Several important typical and atypical ON variants are now recognized. Typical ON has a more favorable prognosis; it can be idiopathic or represent an early manifestation of demyelinating diseases, mostly multiple sclerosis (MS). The atypical spectrum includes entities such as antibody-driven ON associated with neuromyelitis optica spectrum disorder (NMOSD) and myelin oligodendrocyte glycoprotein antibody disease (MOGAD), chronic/relapsing inflammatory optic neuropathy (CRION), and sarcoidosis-associated ON. Appropriate and timely diagnosis is essential to rapidly decide on the appropriate treatment, maximize visual recovery, and minimize recurrences. This review paper aims at presenting the currently available state-of-the-art treatment strategies for typical and atypical ON, both in the acute phase and in the long-term. Moreover, emerging therapeutic approaches and novel steps in the direction of achieving remyelination are discussed.
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Le Berre C, Ricciuto A, Peyrin-Biroulet L, Turner D. Evolving Short- and Long-Term Goals of Management of Inflammatory Bowel Diseases: Getting It Right, Making It Last. Gastroenterology 2022; 162:1424-1438. [PMID: 34995529 DOI: 10.1053/j.gastro.2021.09.076] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 08/28/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022]
Abstract
Short- and long-term treatment targets in inflammatory bowel diseases (IBDs) evolved during the last decade, shifting from symptom control to endoscopic healing and patient-centered parameters. The STRIDE-II consensus placed these targets on a timeline from initiating treatment and introduced additional targets, normalization of serum and fecal biomarkers, restoration of quality of life, prevention of disability, and, in children, restoration of growth. Transmural healing in Crohn's disease and histologic healing in ulcerative colitis currently serve as adjunct measures to gauge remission depth. However, whether early treatment according to a treat-to-target paradigm affects the natural course of IBD remains unclear, leading to the need for prospective disease-modification trials. The SPIRIT consensus defined the targets for these trials to assess the long-term impact of early treatment on quality of life, disability, disease complications, risk of neoplastic lesions, and mortality. As further data emerge about the risk-benefit balance of aiming toward deeper healing, the targets in treating IBDs may continue to shift.
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Affiliation(s)
- Catherine Le Berre
- Department of Gastroenterology and Inserm TENS U1235, Institut des Maladies de l'Appareil Digestif, Nantes University Hospital, Nantes, France
| | - Amanda Ricciuto
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Laurent Peyrin-Biroulet
- University of Lorraine, CHRU-Nancy, Department of Gastroenterology, F-54000 Nancy, France, and University of Lorraine, Inserm, NGERE, F-54000 Nancy, France
| | - Dan Turner
- Juliet Keidan Institute of Pediatric Gastroenterology, Shaare Zedek Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.
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Salvetti M, Wray S, Nelles G, Altincatal A, Kumar A, Koster T, Naylor ML. Safety and clinical effectiveness of peginterferon beta-1a for relapsing multiple sclerosis in the real-world setting: Interim results from the Plegridy Observational Program. Mult Scler Relat Disord 2022; 57:103350. [PMID: 35158459 DOI: 10.1016/j.msard.2021.103350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/15/2021] [Accepted: 10/24/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND The Plegridy Observational Program (POP) is an ongoing, 5-year, phase 4 real-world study of the safety and effectiveness of subcutaneous peginterferon beta-1a in patients with relapsing multiple sclerosis (RMS). METHODS This interim analysis from POP assessed the safety and effectiveness of peginterferon beta-1a, including subgroup analyses of patients aged < 50 and ≥ 50 years, newly diagnosed and non-newly diagnosed patients, and new and experienced peginterferon beta-1a users. RESULTS A total of 1208 patients enrolled in POP. Mean (standard deviation) peginterferon treatment duration in the overall population was 757.0 (529.5) days. The overall incidence of treatment-emergent adverse events (AEs) was 65.5%, and the incidence was higher in new than experienced peginterferon beta-1a users (78.1 vs 52.4%). The overall incidence of treatment-emergent serious AEs was 7.6%, and the incidence was lower in younger than older patients (5.8 vs 11.1%). No new or unexpected safety signals were reported. Overall treatment discontinuation due to AEs occurred in 20.7% of patients, with a higher proportion of new than experienced peginterferon beta-1a users (27.0 vs 14.2%) discontinuing treatment due to AEs. Flu-like symptoms and injection site reactions were significant predictors of time to treatment discontinuation. The adjusted annualized relapse rate (ARR) was 0.12 (95% confidence interval 0.11-0.13) in the overall population and was similar across all subgroups. In the overall population at 4 years, 79.1% of patients were relapse free, the estimated cumulative proportion of patients with confirmed disability worsening was 1.8%, and > 67% of patients achieved clinical no evidence of disease activity (NEDA). CONCLUSIONS Safety data of patients enrolled in POP are consistent with the established clinical safety profile of peginterferon beta-1a. In addition, the low ARR and high proportion of patients achieving clinical NEDA at 4 years across all subgroups indicates the effectiveness of peginterferon beta-1a in treating RMS in real-world clinical settings.
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Affiliation(s)
- Marco Salvetti
- Sapienza University, S. Andrea Hospital, Rome, Italy; IRCCS Neuromed, Pozzilli, Italy
| | - Sibyl Wray
- Hope Neurology MS Center, Knoxville, TN, United States
| | | | - Arman Altincatal
- Biogen, Cambridge, MA, United States, at the time of this analysis
| | - Achint Kumar
- Biogen, 225 Binney Street, Cambridge, MA 02142, United States
| | - Thijs Koster
- Biogen, 225 Binney Street, Cambridge, MA 02142, United States.
| | - Maria L Naylor
- Biogen, Cambridge, MA, United States, at the time of this analysis
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Newsome SD, Scott TF, Arnold DL, Altincatal A, Naylor ML. Early treatment responses to peginterferon beta-1a are associated with longer-term clinical outcomes in patients with relapsing-remitting multiple sclerosis: Subgroup analyses of ADVANCE and ATTAIN. Mult Scler Relat Disord 2022; 57:103367. [PMID: 35158473 DOI: 10.1016/j.msard.2021.103367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 09/28/2021] [Accepted: 11/01/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Early intervention with well-tolerated disease-modifying therapies (DMTs) for relapsing-remitting multiple sclerosis (RRMS) is recommended in order to delay disease progression, reduce neurologic damage, preserve brain volume, and optimize long-term patient outcomes. Lack of conversion of new/newly enlarging T2 (NET2) or gadolinium-enhancing (Gd+) lesions to chronic hypointensities (black hole conversion) and achievement of no evidence of disease activity (NEDA) early in the course of treatment are considered potential indicators of treatment effect and predictors of longer-term clinical outcomes. METHODS Patients with RRMS who were treated with peginterferon beta-1a in the 2-year ADVANCE phase 3 clinical trial (NCT0090639) and its 2-year open-label extension study, ATTAIN (NCT01332019), were grouped as newly diagnosed (diagnosed ≤1 year prior to enrollment and DMT naive) or non-newly diagnosed. For analyses of the impact of early treatment and disease activity control, the newly diagnosed and non-newly diagnosed subgroups were further divided based on whether they initiated peginterferon beta-1a every 2 weeks (Q2W) starting in study year 1 (continuously treated) or peginterferon beta-1a Q2W or every 4 weeks in study year 2 (delayed treatment). Patient subgroups were evaluated for conversion of NET2 or Gd+ lesions to persistent black holes (PBHs), brain atrophy (percentage change in whole brain volume [WBV]), achievement of NEDA composite outcomes, and the association of these disease activity measures with longer-term clinical outcomes (annualized relapse rate [ARR] and confirmed disability worsening [CDW]). RESULTS At 2 years, significantly fewer PBHs developed from NET2 lesions or Gd+ lesions in newly diagnosed and non-newly diagnosed patients continuously treated with peginterferon beta-1a than in the corresponding delayed-treatment groups (all p<0.0001). Percentage decrease in WBV from 6 months (rebaselined) to 2 years was significantly lower for newly diagnosed and non-newly diagnosed patients who received continuous peginterferon beta-1a treatment than for patients who received delayed treatment (both p ≤ 0.0442). In study year 1, a higher proportion of newly diagnosed and non-newly diagnosed patients treated with peginterferon beta-1a than those treated with placebo achieved NEDA (newly diagnosed: 28.3% vs 13.5% [p = 0.0010]; non-newly diagnosed: 40.8% vs 15.8% [p<0.0001]). NEDA rates remained stable over study years 2-4 for the newly diagnosed (range: 50.0%-53.9%) and non-newly diagnosed (range: 54.4%-57.0%) subgroups. Patients without PBH conversion had significantly lower ARR at 2 years (newly diagnosed: p = 0.0109; non-newly diagnosed: p = 0.0044) and a lower proportion of patients with 12-week CDW at 2 years (newly diagnosed: p = 0.2787; non-newly diagnosed: p = 0.0045) than the corresponding patient subgroups with PBH conversion. Patients who achieved NEDA in ADVANCE (study years 1-2) had a significantly lower ARR in ATTAIN (study years 3-4) than patients who did not achieve NEDA (newly diagnosed, p = 0.0003; non-newly diagnosed, p = 0.0001). Over 4 years, safety outcomes did not differ for the newly diagnosed and non-newly diagnosed patient subgroups. CONCLUSIONS These results indicate that newly diagnosed and non-newly diagnosed patients treated continuously with peginterferon beta-1a Q2W experienced better disease control over time than those who received delayed treatment. Patients with NEDA or evidence of less radiological disease activity in the first 2 years of treatment had better longer-term clinical outcomes than those with evidence of greater disease activity.
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Affiliation(s)
- Scott D Newsome
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
| | - Thomas F Scott
- Department of Neurology, Allegheny General Hospital, Pittsburgh, PA, USA
| | - Douglas L Arnold
- Montreal Neurological Institute, McGill University, and NeuroRx Research, Montreal, QC, Canada
| | | | - Maria L Naylor
- Biogen, Cambridge, MA, USA, at the time of these analyses
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Sanz Diaz CT, de Las Heras Flórez S, Carretero Perez M, Hernández Pérez MÁ, Martín García V. Evaluation of Kappa Index as a Tool in the Diagnosis of Multiple Sclerosis: Implementation in Routine Screening Procedure. Front Neurol 2021; 12:676527. [PMID: 34456842 PMCID: PMC8386692 DOI: 10.3389/fneur.2021.676527] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/29/2021] [Indexed: 11/13/2022] Open
Abstract
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system. Previous studies have shown that cerebrospinal fluid (CSF) kappa free light chains (K-FLCs) may have a role in MS diagnosis. In this regard, the kappa index (K-Index) has demonstrated higher sensitivity, and slightly lower specificity than oligoclonal bands (OCBs), the gold standard for the detection of intrathecal immunoglobulin synthesis, a feature of MS. Here, we evaluated the performance of the K-Index (K-Index = CSF/serum K-FLC divided by CSF/serum albumin) for the differential diagnosis of MS in a cohort of patients with suspected MS. K-FLCs were quantitatively measured in parallel serum and CSF samples by turbidimetry (Freelite Mx reagent on an Optilite system, The Binding Site Group Ltd). From 160 (63.4%) of a total of 252 patients who had K-FLC in CSF <0.03 mg/dl, below the sensitivity limit of the technique, only one had a diagnosis of MS. However, the absence of OCB in this same patient suggested no synthesis of intrathecal immunoglobulin. Globally, MS patients presented significantly higher K-Index levels than patients without an MS diagnosis (66.96 vs. 0.025, respectively; p < 0.0001). In agreement, patients with positive OCB testing also exhibited higher K-Index levels than patients negative for OCB (65.02 vs. 0.024, respectively; p < 0.0001). An optimal K-Index cutoff of 3.045 was defined by receiver operating characteristic (ROC) analysis for screening suspected MS, achieving a higher diagnostic sensitivity and slightly lower specificity than OCB (Sens. 0.9778 and Spec. 0.8629 vs. Sens. 0.8889 and Spec. 0.9086, respectively). A previously reported K-Index cutoff of 6.6 also showed good diagnostic performance (Sens. 0.9333; Spec. 0.8731), validating its power as a diagnostic biomarker for MS. Finally, a time- and cost-effective algorithm for MS screening is proposed that would offer an initial rapid evaluation of the intrathecal immunoglobulin synthesis through the K-FLC in CSF and K-Index analysis, followed by reflexing OCB testing that may be ordered more selectively.
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Affiliation(s)
- Carmen Teresa Sanz Diaz
- Clinical Analysis Laboratory, Hospital Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | | | - Mercedes Carretero Perez
- Clinical Analysis Laboratory, Hospital Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | | | - Vicente Martín García
- Radiodiagnosis Department, Hospital Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
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10
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Palatability and Swallowability of Pimavanserin When Mixed with Selected Food Vehicles: An Exploratory Open-Label Crossover Study. Geriatrics (Basel) 2021; 6:geriatrics6020061. [PMID: 34203662 PMCID: PMC8293179 DOI: 10.3390/geriatrics6020061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/04/2021] [Accepted: 06/10/2021] [Indexed: 11/17/2022] Open
Abstract
Dysphagia (difficulty swallowing) affects up to 13% of persons 65 years and older and 51% of older persons in nursing homes and can contribute to reduced adherence to oral medications. This was an exploratory, single-center, open-label, randomized, crossover study in healthy older adult participants. Primary objectives were evaluation of palatability (taste) and swallowability of the contents of pimavanserin 34 mg capsules mixed with selected soft foods or a liquid nutritional supplement. Secondary objectives included evaluation of additional palatability endpoints and ease of capsule manipulation for mixing. A total of 18 healthy, older adult participants (mean age 65 years) were included. Mean participant ratings for all food vehicles were "moderately like" to "neither like nor dislike" for palatability and "very easy" to "somewhat easy" for swallowability. Capsule manipulation to allow sprinkling of contents was rated "very easy" or "somewhat easy" by most participants. There were five treatment-emergent adverse events, all mild; two were deemed related to study treatment. The palatability and swallowability of pimavanserin was considered acceptable when administered with certain soft foods or a liquid nutritional supplement by the study participants.
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11
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Ghai S, Kasilingam E, Lanzillo R, Malenica M, van Pesch V, Burke NC, Carotenuto A, Maguire R. Needs and Experiences of Children and Adolescents with Pediatric Multiple Sclerosis and Their Caregivers: A Systematic Review. CHILDREN (BASEL, SWITZERLAND) 2021; 8:445. [PMID: 34070298 PMCID: PMC8226634 DOI: 10.3390/children8060445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/19/2021] [Accepted: 05/23/2021] [Indexed: 01/21/2023]
Abstract
In the present study we conduct a systematic review to evaluate the needs and experience of people with pediatric multiple sclerosis (MS) and their caregivers. The literature search was conducted across 10 academic databases, adhering to PRISMA-P guidelines. Quality appraisal was conducted using the mixed method appraisal test for individual studies, and GRADE-CERQual to establish overall confidence of findings. Results were analyzed using a process of narrative synthesis. We identified 26 studies which included 2253 children/adolescents with MS (CAMS) and 1608 caregivers. MS was reported to negatively impact experiences for CAMS in domains such as of school performance, social relationships, mental health, and overall physical functioning. Specifically, fatigue and social support were reported as the most important barriers and facilitators for CAMS, respectively. In terms of caregiver experience, negative impacts were reported on social functioning, mental health, and quality of life. Additionally, lack of awareness concerning MS was one of the biggest challenges reported. Caregivers expressed needs for psychological and social support. This study provides the first evidence regarding the needs and experiences of CAMS and their caregivers. Findings can be used to address policy gaps for supporting families affected by pediatric MS.
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Affiliation(s)
- Shashank Ghai
- School of Physical and Occupational Therapy, McGill University, Montréal, QC H3G 1Y5, Canada
- Feil & Oberfeld Research Centre of the Jewish Rehabilitation Hospital—CISSS Laval, a Research Site of the Centre for Interdisciplinary Research of Greater Montreal (CRIR), Laval, QC H7V 1R2, Canada
- Department of Family Medicine, McGill University, Montréal, QC GRM MDI, Canada
| | | | - Roberta Lanzillo
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy; (R.L.); (A.C.)
| | - Masa Malenica
- Department of Child Neurology, Associated Member of the ERN EpiCARE, Sestre Milosrdnice University Hospital Center, 10000 Zagreb, Croatia;
| | - Vincent van Pesch
- Department of Neurology, Cliniques Universitaires Saint-Luc, UCLouvain, 1200 Brussels, Belgium;
| | - Niamh Caitlin Burke
- Department of Psychology, Maynooth University, Maynooth W23 F2K8, Ireland; (N.C.B.); (R.M.)
| | - Antonio Carotenuto
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy; (R.L.); (A.C.)
| | - Rebecca Maguire
- Department of Psychology, Maynooth University, Maynooth W23 F2K8, Ireland; (N.C.B.); (R.M.)
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12
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Assessment of delayed diagnosis and treatment in multiple sclerosis patients during 1990-2016. Acta Neurol Belg 2021; 121:199-204. [PMID: 33180313 DOI: 10.1007/s13760-020-01528-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 10/13/2020] [Indexed: 10/23/2022]
Abstract
Multiple sclerosis (MS) is the most common inflammatory demyelinating disease in the central nervous system. It is one of the major causes of disability in young adults. Early diagnosis and treatment of this disease could decrease later disability and additional costs. In this cross-sectional analytical study, a total of 351 patients were selected from among the multiple sclerosis patients that went to MS clinic or neurologic clinic in 1990-2016. Data were collected and analysed by SPSS v16. This study was conducted on 82.6% females and 17.4% males. Family history of MS was positive in 12.8% of cases. Mean time of onset of symptoms till first medical visit was 3.25 months. Mean time from first medical visit to diagnosis was 14.98 months. Mean time from onset of symptoms till diagnosis was 18.01 months and the mean time from onset of symptoms till initiation of treatment was 18.73 months. Also, 29.3% of cases had delay in first medical visit and 42.2% of cases had delay in diagnosis of MS more than 6 weeks from first medical visit. Overall, delay in first medical visit and diagnosis of MS has decreased over the years. However, there is still delay in diagnosis of MS. Factors associated with delay are low education, male gender, living in rural areas, primary progressive MS, age at MS diagnosis and first clinical symptoms.
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13
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Berger T, Brochet B, Brambilla L, Giacomini PS, Montalbán X, Vasco Salgado A, Su R, Bretagne A. Effectiveness of delayed-release dimethyl fumarate on patient-reported outcomes and clinical measures in patients with relapsing-remitting multiple sclerosis in a real-world clinical setting: PROTEC. Mult Scler J Exp Transl Clin 2019; 5:2055217319887191. [PMID: 31832225 PMCID: PMC6891011 DOI: 10.1177/2055217319887191] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/11/2019] [Accepted: 09/19/2019] [Indexed: 11/16/2022] Open
Abstract
Background Patient-reported outcomes (PRO) and clinical outcomes give a broad assessment of relapsing-remitting multiple sclerosis (RRMS) disease. Objective The aim is to evaluate the effectiveness of delayed-release dimethyl fumarate (DMF) on disease activity and PROs in patients with RRMS in the clinic. Methods PROTEC, a phase 4, open-label, 12-month observational study, assessed annualized relapse rate (ARR), proportion of patients relapsed, and changes in PROs. Newly diagnosed and early MS (≤3.5 EDSS and ≤1 relapse in the prior year) patient subgroups were evaluated. Results Unadjusted ARR at 12 months post-DMF versus 12 months before DMF initiation was 75% lower (0.161 vs. 0.643, p < 0.0001) overall (n = 1105) and 84%, 77%, and 71% lower in newly diagnosed, ≤3.5 EDSS, and ≤1 relapse subgroups, respectively. Overall, 88% of patients were relapse-free 12 months after DMF initiation (84%, newly diagnosed; 88%, ≤3.5 EDSS; 88%, ≤1 relapse). PRO measures for fatigue, treatment satisfaction, daily living, and work improved significantly over 12 months of DMF versus baseline. Conclusion At 12 months after versus 12 months before DMF initiation, ARR was significantly lower, the majority of patients were relapse-free, and multiple PRO measures showed improvement (overall and for subgroups), suggesting that DMF is effective based on clinical outcomes and from a patient perspective.Clinical trial: A Study Evaluating the Effectiveness of Tecfidera (Dimethyl Fumarate) on Multiple Sclerosis (MS) Disease Activity and Patient-Reported Outcomes (PROTEC), NCT01930708, https://clinicaltrials.gov/ct2/show/NCT01930708.
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Affiliation(s)
- T Berger
- Universitätsklinik für Neurologie, Medizinische Universität, Austria
| | - B Brochet
- Groupe Hospitalier Pellegrin Hôpital Pellegrin, France
| | - L Brambilla
- IRCCS Foundation Neurological Institute Carlo Besta, Italy
| | - P S Giacomini
- Montreal Neurological Institute & Hospital, McGill University Health Center, Canada
| | - X Montalbán
- Division of Neurology, St Michael's Hospital, University of Toronto, Canada.,Department of Neurology-Neuroimmunology, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Hospital Universitario Vall d'Hebron, Spain
| | - A Vasco Salgado
- Hospital Professor Doutor Fernando Fonseca, E.P.E., Portugal
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14
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Naismith RT, Wolinsky JS, Wundes A, LaGanke C, Arnold DL, Obradovic D, Freedman MS, Gudesblatt M, Ziemssen T, Kandinov B, Bidollari I, Lopez-Bresnahan M, Nangia N, Rezendes D, Yang L, Chen H, Liu S, Hanna J, Miller C, Leigh-Pemberton R. Diroximel fumarate (DRF) in patients with relapsing-remitting multiple sclerosis: Interim safety and efficacy results from the phase 3 EVOLVE-MS-1 study. Mult Scler 2019; 26:1729-1739. [PMID: 31680631 PMCID: PMC7604551 DOI: 10.1177/1352458519881761] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Diroximel fumarate (DRF) is a novel oral fumarate for patients with relapsing-remitting multiple sclerosis (RRMS). DRF and the approved drug dimethyl fumarate yield bioequivalent exposure to the active metabolite monomethyl fumarate; thus, efficacy/safety profiles are expected to be similar. However, DRF's distinct chemical structure may result in a differentiated gastrointestinal (GI) tolerability profile. OBJECTIVE To report interim safety/efficacy findings from patients in the ongoing EVOLVE-MS-1 study. METHODS EVOLVE-MS-1 is an ongoing, open-label, 96-week, phase 3 study assessing DRF safety, tolerability, and efficacy in RRMS patients. Primary endpoint is safety and tolerability; efficacy endpoints are exploratory. RESULTS As of March 2018, 696 patients were enrolled; median exposure was 59.9 (range: 0.1-98.9) weeks. Adverse events (AEs) occurred in 84.6% (589/696) of patients; the majority were mild (31.2%; 217/696) or moderate (46.8%; 326/696) in severity. Overall treatment discontinuation was 14.9%; 6.3% due to AEs and <1% due to GI AEs. At Week 48, mean number of gadolinium-enhancing lesions was significantly reduced from baseline (77%; p < 0.0001) and adjusted annualized relapse rate was low (0.16; 95% confidence interval: 0.13-0.20). CONCLUSION Interim data from EVOLVE-MS-1 suggest DRF is a well-tolerated treatment with a favorable safety/efficacy profile for patients with RRMS.
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Affiliation(s)
| | - Jerry S Wolinsky
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Annette Wundes
- Department of Neurology, University of Washington Medical Center, Seattle, WA, USA
| | | | - Douglas L Arnold
- Montreal Neurological Institute, McGill University, Montreal, QC, Canada/NeuroRx Research Inc., Montreal, QC, Canada
| | | | - Mark S Freedman
- University of Ottawa and the Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | | | - Tjalf Ziemssen
- Center of Clinical Neuroscience, Carl Gustav Carus University Hospital, Dresden, Germany
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15
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Zhang Y, Salter A, Wallström E, Cutter G, Stüve O. Evolution of clinical trials in multiple sclerosis. Ther Adv Neurol Disord 2019; 12:1756286419826547. [PMID: 30833985 PMCID: PMC6391540 DOI: 10.1177/1756286419826547] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 12/17/2018] [Indexed: 01/08/2023] Open
Abstract
Clinical trials have advanced the treatment of multiple sclerosis (MS) by demonstrating the safety and efficacy of disease-modifying therapies (DMTs). This review discusses major changes to MS clinical trials in the era of DMTs. As treatment options for MS continue to increase, patients in modern MS trials present earlier and with milder disease compared with historic MS populations. While placebo-controlled trials for some questions may still be relevant, DMT trials in relapsing–remitting MS (RRMS) are no longer ethical. The replacement of the placebo arm by an active comparator arm in trials have raised the cost of trials by requiring larger sample sizes to detect on-study changes in treatment effects. Efforts to improve trial efficiency in RRMS have focused on exploring adaptive designs and relying on sensitive magnetic resonance imaging measures of disease activity. In trials for progressive forms of MS (PMS), the lack of sensitive outcome measures that can be used in shorter-term trials have delayed the development of effective treatments. Recent shifting of the focus to advancing trials in PMS has identified paraclinical outcome measurements with improved potential, and the testing of agents for neuroprotection and remyelination is in progress.
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Affiliation(s)
- Yinan Zhang
- Department of Neurology and Neurotherapeutics, the University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Amber Salter
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, USA
| | - Erik Wallström
- Sanofi Genzyme, Neuro and Gene Therapy, Cambridge, MA, USA
| | - Gary Cutter
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Olaf Stüve
- Neurology Section, VA North Texas Health Care System, Medical Service, 4500 South Lancaster Rd., Dallas, TX 75216, USADepartment of Neurology, Klinikum rechts der Isar, Technische Universität München, Germany
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16
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Relevance of KFLC quantification to differentiate clinically isolated syndrome from multiple sclerosis at clinical onset. Clin Neurol Neurosurg 2018; 174:220-229. [DOI: 10.1016/j.clineuro.2018.09.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 09/13/2018] [Accepted: 09/22/2018] [Indexed: 11/22/2022]
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17
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Saposnik G, Mamdani M, Terzaghi M, Saladino ML, Silva B, Tobler PN, Caceres F. The Role of Prescribing Generic (Non-proprietary) Drugs in the Prevalence of Therapeutic Inertia in Multiple Sclerosis Care. Front Neurol 2018; 9:835. [PMID: 30369904 PMCID: PMC6194175 DOI: 10.3389/fneur.2018.00835] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 09/18/2018] [Indexed: 01/06/2023] Open
Abstract
Importance: The prescription of generic (non-proprietary) compared to brand-name drugs is increasing worldwide. In many developing and emerging countries, generics companies market products at similar costs as brand-name competitors benefiting from more flexible compliance rules and regulations for marketing their products in the health system. Together, this phenomenon may influence prescriber's behavior (e.g., maintaining the same treatment despite guideline's recommendations or despite evidence of disease progression). Objectives: To compare the prevalence of therapeutic inertia (TI) between primary prescription of brand-name vs. generic drugs in the management of MS in Argentina. Design: We conducted a population-based online study comprising 117 neurologists with expertise in MS. Participants answered questions regarding their clinical practice, most commonly prescribed disease modifying agents, and therapeutic choices of 10 simulated case-scenarios that assessed TI. Inertia was defined as the lack of treatment initiation or escalation despite evidence of clinical and radiological activity (8 case-scenarios, 720 individual responses). We created the generic-brand name score (GBS) according to the 5 most frequently prescribed generic (n = 16) vs. brand-name (n = 9) drugs for MS, where scores higher than 1 indicated higher prescription of generic drugs and scores lower than 1 indicated higher prescription of brand-name agents. Candidate predictors of prescribing generic drugs included demographic data, MS specialist vs. general neurologist, practice setting, years of practice, volume of MS patients, risk preferences, costs of annual treatment. Participants and setting: population-based prospective study using including neurologists who care for patients with multiple sclerosis across Argentina. Exposure: prescription of generic vs. brand-name MS drugs Main outcome of interest: Therapeutic inertia (TI), defined as lack of treatment escalation when goals are unmet. Secondary outcomes included factors associated with generic drug prescription and costs of MS treatment. Results: Ninety participants completed the study (completion rate 76.9%). TI was observed in 153 (21.3%) of participants' responses. The evaluation of aggregate responses revealed a mean GBS score (SD) of 3.44 (2.1), with 46 (51.1%) participants having a GBS equal to or higher than 1. Older age (OR 1.19; 95% CI 1.00–1.42), being a general neurologist (OR 3.91; 95% CI 1.19–12.8), and being more willing to take risks in multiple domains (SOEP score OR 1.06, 95% CI 1.01–1.12) were associated with higher prescription of generic drugs in MS care. Costs of treatment were not associated with prescribing generic drugs. There was no difference in the annual costs of MS treatment for primary prescribers of brand-name vs. generic drugs (67,500 US$ vs. 67,496 US$; p = 0.99). The evaluation of individual responses revealed that participants with higher prescription of generics—reflected by a higher GBS—had higher incident risk of TI (mean GBS 3.61 for TI vs. 2.96 for no TI; p < 0.001). Multivariate analysis revealed that a prescription of generic agents was associated with an increased incident risk of TI (OR 1.56; 95%CI 1.07–2.29). There was no difference in the annual costs of MS treatment for participants that exhibited TI vs. those without TI (67,426 US$ vs. 67,704 US$; p = 0.66). Conclusions: General neurologist, older age, and willingness to take risks were associated with increased prescription of generic drugs despite similar costs compared to brand-name agents. In our study, the prescription of generic-MS drugs was associated with a higher incident risk of therapeutic inertia.
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Affiliation(s)
- Gustavo Saposnik
- Division of Neurology, Department of Medicine, St. Michael's Hospital, University of Toronto Toronto, ON, Canada.,Laboratory for Social and Neural Systems Research, Department of Economics, University of Zurich Zurich, Switzerland.,Decision Neuroscience Unit, St. Michael's Hospital, Li Ka Shing Knowledge Institute, University of Toronto Toronto, ON, Canada
| | - Muhammad Mamdani
- Li Ka Shing Centre for Healthcare Analytics Research and Training (LKS-CHART) Toronto, ON, Canada
| | - Maria Terzaghi
- Decision Neuroscience Unit, St. Michael's Hospital, Li Ka Shing Knowledge Institute, University of Toronto Toronto, ON, Canada
| | - Maria Laura Saladino
- Department of Neurology, Institute of Neuroscience Buenos Aires (INEBA) Buenos Aires, Argentina
| | - Berenice Silva
- Department of Neurology, Institute of Neuroscience Buenos Aires (INEBA) Buenos Aires, Argentina
| | - Philippe N Tobler
- Laboratory for Social and Neural Systems Research, Department of Economics, University of Zurich Zurich, Switzerland
| | - Fernando Caceres
- Department of Neurology, Institute of Neuroscience Buenos Aires (INEBA) Buenos Aires, Argentina
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18
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Teimuri S, Hosseini A, Ghaedi K, Tanhaei S, Javadirad SM, Etemadifar M, Nasr Esfahani MH. Risk factor effect of rs1044165 and rs3745453 as neighboring variants of miR-223, miR-24, miR-23a and miR-27a on the onset of MS disease in Isfahan/Iran. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Manouchehrinia A, Zhu F, Piani-Meier D, Lange M, Silva DG, Carruthers R, Glaser A, Kingwell E, Tremlett H, Hillert J. Predicting risk of secondary progression in multiple sclerosis: A nomogram. Mult Scler 2018; 25:1102-1112. [PMID: 29911467 DOI: 10.1177/1352458518783667] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVES We aimed at designing a nomogram, a prediction tool, to predict the individual's risk of conversion to secondary progressive multiple sclerosis (SPMS) at the time of multiple sclerosis (MS) onset. METHODS One derivation and three validation cohorts were established. The derivation cohort included 8825 relapsing-onset MS patients in Sweden. A nomogram was built based on a survival model with the best statistical fit and prediction accuracy. The nomogram was validated using data from 3967 patients in the British Columbia cohort, 176 patients in the ACROSS and 2355 patients in FREEDOMS/FREEDOMS II extension studies. RESULTS Sex, calendar year of birth, first-recorded Expanded Disability Status Scale (EDSS) score, age at the first EDSS and age at disease onset showed significant predictive ability to estimate the risk of SPMS conversion at 10, 15 and 20 years. The nomogram reached 84% (95% confidence intervals (CIs): 83-85) internal and 77% (95% CI: 76-78), 77% (95% CI: 70-85) and 87% (95% CI: 84-89) external accuracy. CONCLUSIONS The SPMS nomogram represents a much-needed complementary tool designed to assist in decision-making and patient counselling in the early phase of MS. The SPMS nomogram may improve outcomes by prompting timely and more efficacious treatment for those with a worse prognosis.
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Affiliation(s)
- Ali Manouchehrinia
- Department of Clinical Neuroscience (CNS), Karolinska Institutet, Stockholm, Sweden
| | - Feng Zhu
- Division of Neurology, UBC Hospital, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
| | | | | | | | - Robert Carruthers
- Division of Neurology, UBC Hospital, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Anna Glaser
- Department of Clinical Neuroscience (CNS), Karolinska Institutet, Stockholm, Sweden
| | - Elaine Kingwell
- Division of Neurology, UBC Hospital, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Helen Tremlett
- Division of Neurology, UBC Hospital, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Jan Hillert
- Department of Clinical Neuroscience (CNS), Karolinska Institutet, Stockholm, Sweden
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20
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Hegen H, Bsteh G, Berger T. 'No evidence of disease activity' - is it an appropriate surrogate in multiple sclerosis? Eur J Neurol 2018; 25:1107-e101. [PMID: 29687559 PMCID: PMC6099351 DOI: 10.1111/ene.13669] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 04/16/2018] [Indexed: 12/14/2022]
Abstract
The increasing number of disease‐modifying treatments available for multiple sclerosis has broadened treatment options for patients, but also challenges clinicians to select the best therapy for each individual at the appropriate stage of the disease. Early prediction of treatment response still remains one of the main difficulties in the management of multiple sclerosis patients. The concept of ‘no evidence of disease activity’ (NEDA) has been proposed as a surrogate for treatment response based on the absence of relapses, disability progression and radiological activity. Although there are several apparently logical arguments for the NEDA approach, there are also some major concerns that have to be considered and that are not sufficiently addressed yet. Amongst others, each parameter's limitations are not eliminated solely by its use within a composite score, and the contribution of each parameter to NEDA is not well balanced, as the detection of, for example, a single new magnetic resonance imaging lesion is considered as significant as the occurrence of a severely disabling relapse. NEDA in its current form also neglects underlying pathophysiology of the disease, has not been shown to fulfil formal criteria of a surrogate marker and its prognostic value has not been sufficiently evidenced yet. From a clinical point of view, ‘evidence of disease activity’ seems the more relevant surrogate; however, its implications are even less clear than those of NEDA. Here, existing literature on NEDA is critically reviewed and improvements are discussed that value its potential use in clinical trials and, even more importantly, treatment decision making in daily routine.
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Affiliation(s)
- H Hegen
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - G Bsteh
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - T Berger
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
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21
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Relapsing-Remitting Multiple Sclerosis diagnosis from cerebrospinal fluids via Fourier transform infrared spectroscopy coupled with multivariate analysis. Sci Rep 2018; 8:1025. [PMID: 29348591 PMCID: PMC5773569 DOI: 10.1038/s41598-018-19303-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 12/27/2017] [Indexed: 11/17/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic, progressive, inflammatory and degenerative disease of central nervous system. Here, we aimed to develop a method for differential diagnosis of Relapsing-Remitting MS (RRMS) and clinically isolated syndrome (CIS) patients, as well as to identify CIS patients who will progress to RRMS, from cerebrospinal fluid (CSF) by infrared (IR) spectroscopy and multivariate analysis. Spectral analyses demonstrated significant differences in the molecular contents, especially in the lipids and Z conformation of DNA of CSF from CIS, CIS to RRMS transformed (TCIS) and RRMS groups. These changes enables the discrimination of diseased groups and controls (individuals with no neurological disease) from each other using hierarchical cluster and principal component analysis. Some CIS samples were consistently clustered in RRMS class, which may indicate that these CIS patients potentially will transform to RRMS over time. Z-DNA band at 795 cm−1 that is existent only in diseased groups and significant increase in carbonyl amount, decrease in amideI/amide II and lipid/protein ratios observed only for RRMS groups can be used as diagnostic biomarkers. The results of the present study shed light on the early diagnosis of RRMS by IR spectroscopy complemented with multivariate analysis tools.
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Pau M, Mandaresu S, Pilloni G, Porta M, Coghe G, Marrosu MG, Cocco E. Smoothness of gait detects early alterations of walking in persons with multiple sclerosis without disability. Gait Posture 2017; 58:307-309. [PMID: 28858779 DOI: 10.1016/j.gaitpost.2017.08.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 08/16/2017] [Accepted: 08/18/2017] [Indexed: 02/02/2023]
Abstract
In people with Multiple Sclerosis (pwMS) with little or no signs of disability, early detection of walking impairments represents a challenging issue, as simple gait metrics (e.g. speed, cadence, stride length, etc.) may not significantly differ from those of healthy individuals. In this study, we aimed to assess the existence of possible differences in spatial-temporal parameters and smoothness of gait measures (assessed through Harmonic Ratio, HR) obtained from trunk accelerations between 50pwMS without disability (Expanded Disability Status Scale score =1) and 50 age-matched healthy controls. The results show no differences in terms of gait velocity, stride length, stance/swing and double support phases duration, while HR in the direction of motion was significantly lower in pwMS (2.92 vs. 3.67, p<0.001), thus indicating a less smooth gait. The study of trunk accelerations through calculation of HR represents a fast, non-intrusive technique that allows early identification of anomalies in gait patterns of pwMS in absence of disability.
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Affiliation(s)
- Massimiliano Pau
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Cagliari, Italy.
| | - Serena Mandaresu
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Cagliari, Italy; Multiple Sclerosis Centre, Department of Medical Sciences and Public Health University of Cagliari, Cagliari, Italy
| | - Giuseppina Pilloni
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Cagliari, Italy
| | - Micaela Porta
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Cagliari, Italy; Multiple Sclerosis Centre, Department of Medical Sciences and Public Health University of Cagliari, Cagliari, Italy
| | - Giancarlo Coghe
- Multiple Sclerosis Centre, Department of Medical Sciences and Public Health University of Cagliari, Cagliari, Italy
| | - Maria Giovanna Marrosu
- Multiple Sclerosis Centre, Department of Medical Sciences and Public Health University of Cagliari, Cagliari, Italy
| | - Eleonora Cocco
- Multiple Sclerosis Centre, Department of Medical Sciences and Public Health University of Cagliari, Cagliari, Italy
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Corvino FA, Oliveri D, Phillips AL. The association of timing of disease-modifying drug initiation and relapse in patients with multiple sclerosis using electronic health records. Curr Med Res Opin 2017; 33:1127-1132. [PMID: 28318337 DOI: 10.1080/03007995.2017.1308918] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE A large, US de-identified electronic health record (EHR) database (Optum-Humedica de-identified Electronic Health Record dataset) was used to evaluate whether earlier disease-modifying drug (DMD) treatment initiation was associated with improved outcomes in multiple sclerosis (MS). METHODS Newly diagnosed patients from 1 January 2008 to 30 August 2014 (International Classification of Diseases, Ninth Revision, Clinical Modification code: 340.xx; first MS diagnosis = index date) with healthcare activity 1 year pre- and 2 years post-index, and who initiated DMD treatment during the 2 year follow-up period, were included. Patients were categorized as Early or Late Initiators (initiated DMD treatment ≤90 or >90 days following index, respectively). Relapse was determined by the presence of an MS-related hospitalization or an outpatient encounter with MS diagnosis and corticosteroid prescription within 7 days. RESULTS A total of 4732 patients met the inclusion criteria: 2042 (43.2%) were Early Initiators and 2690 (56.8%) were Late Initiators. Similar baseline mean age (46.9 years for both cohorts) and Charlson Comorbidity Index scores (Early Initiators: 0.3, Late Initiators: 0.32) were observed. Average time to treatment was 20.9 ± 27.6 days for Early Initiators and 346.3 ± 181.1 days for Late Initiators. A significantly higher proportion of Late Initiators (n = 609; 22.6%) had a relapse during the 2 years following MS diagnosis compared with Early Initiators (n = 403; 19.7%; p = .0158). After controlling for covariates using multivariable logistic regression, late initiation of DMD treatment was associated with greater likelihood of relapse compared with early initiation (odds ratio 1.189; 95% CI: 1.031-1.371; p = .0172). CONCLUSIONS Later initiation of DMD treatment (i.e. >90 days after MS diagnosis) in patients with MS was associated with a greater likelihood of relapse compared with earlier initiation. Early initiation of DMD treatment following a diagnosis of MS may have an effect on long-term outcomes.
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Affiliation(s)
| | | | - Amy L Phillips
- b Health Economics & Outcomes Research, EMD Serono, Inc. , Rockland , MA , USA
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Saposnik G, Sempere AP, Prefasi D, Selchen D, Ruff CC, Maurino J, Tobler PN. Decision-making in Multiple Sclerosis: The Role of Aversion to Ambiguity for Therapeutic Inertia among Neurologists (DIScUTIR MS). Front Neurol 2017; 8:65. [PMID: 28298899 PMCID: PMC5331032 DOI: 10.3389/fneur.2017.00065] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 02/13/2017] [Indexed: 11/14/2022] Open
Abstract
Objectives Limited information is available on physician-related factors influencing therapeutic inertia (TI) in multiple sclerosis (MS). Our aim was to evaluate whether physicians’ risk preferences are associated with TI in MS care, by applying concepts from behavioral economics. Design In this cross-sectional study, participants answered questions regarding the management of 20 MS case scenarios, completed 3 surveys, and 4 experimental paradigms based on behavioral economics. Surveys and experiments included standardized measures of aversion ambiguity in financial and health domains, physicians’ reactions to uncertainty in patient care, and questions related to risk preferences in different domains. The primary outcome was TI when physicians faced a need for escalating therapy based on clinical (new relapse) and magnetic resonance imaging activity while patients were on a disease-modifying agent. Results Of 161 neurologists who were invited to participate in the project, 136 cooperated with the study (cooperation rate 84.5%) and 96 completed the survey (response rate: 60%). TI was present in 68.8% of participants. Similar results were observed for definitions of TI based on modified Rio or clinical progression. Aversion to ambiguity was associated with higher prevalence of TI (86.4% with high aversion to ambiguity vs. 63.5% with lower or no aversion to ambiguity; p = 0.042). In multivariate analyses, high aversion to ambiguity was the strongest predictor of TI (OR 7.39; 95%CI 1.40–38.9), followed by low tolerance to uncertainty (OR 3.47; 95%CI 1.18–10.2). Conclusion TI is a common phenomenon affecting nearly 7 out of 10 physicians caring for MS patients. Higher prevalence of TI was associated with physician’s strong aversion to ambiguity and low tolerance of uncertainty.
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Affiliation(s)
- Gustavo Saposnik
- Division of Neurology, Stroke Outcomes and Decision Neuroscience Research Unit, Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, ON, Canada; Laboratory for Social and Neural Systems Research, Department of Economics, University of Zurich, Zurich, Switzerland; Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Angel P Sempere
- Department of Neurology, Hospital General Universitario de Alicante , Alicante , Spain
| | - Daniel Prefasi
- Neuroscience Area, Medical Department, Roche Farma , Madrid , Spain
| | - Daniel Selchen
- Division of Neurology, Stroke Outcomes and Decision Neuroscience Research Unit, Department of Medicine, St. Michael's Hospital, University of Toronto , Toronto, ON , Canada
| | - Christian C Ruff
- Laboratory for Social and Neural Systems Research, Department of Economics, University of Zurich , Zurich , Switzerland
| | - Jorge Maurino
- Neuroscience Area, Medical Department, Roche Farma , Madrid , Spain
| | - Philippe N Tobler
- Laboratory for Social and Neural Systems Research, Department of Economics, University of Zurich , Zurich , Switzerland
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Niino M, Miyazaki Y. Radiologically isolated syndrome and clinically isolated syndrome. ACTA ACUST UNITED AC 2017. [DOI: 10.1111/cen3.12346] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masaaki Niino
- Department of Clinical Research; Hokkaido Medical Center; Sapporo Japan
| | - Yusei Miyazaki
- Department of Clinical Research; Hokkaido Medical Center; Sapporo Japan
- Department of Neurology; Hokkaido Medical Center; Sapporo Japan
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Su W, Kansal A, Vicente C, Deniz B, Sarda S. The cost-effectiveness of delayed-release dimethyl fumarate for the treatment of relapsing-remitting multiple sclerosis in Canada. J Med Econ 2016; 19:718-27. [PMID: 27080475 DOI: 10.3111/13696998.2016.1164174] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Multiple sclerosis (MS) causes significant disability and diminished quality-of-life. Delayed-release dimethyl fumarate (DMF; also known as gastro-resistant DMF) is a new oral treatment for relapsing-remitting MS (RRMS) approved in the US, Australia, Canada, and Europe. OBJECTIVES A cost-effectiveness model was developed to compare the health economic impact of DMF against other disease-modifying therapies (DMTs) as first-line RRMS treatment from a Canadian Ministry of Health perspective. METHODS A Markov cohort model was developed to simulate patients' progression through health states based on the Kurtzke Expanded Disability Status Scale (EDSS) over a life-time horizon. Patients entered the model based on a distribution of baseline EDSS scores, from which they could progress to higher or regress to lower EDSS state, or remain in the same state. Relapses could occur at any EDSS score. Results from a mixed-treatment comparison were used to inform model inputs for disease progression and relapse rates per treatment. Costs included direct medical costs stratified by EDSS score. Utilities were accrued based on time spent in each EDSS state. RESULTS Compared with glatiramer acetate, DMF yielded 0.528 incremental quality-adjusted life-years (QALYs) at an incremental cost of $23 338 Canadian dollars (CAD), resulting in an incremental cost-effectiveness ratio (ICER) of CAD $44 118/QALY. The ICER for DMF compared with Rebif 44 mcg was CAD $10 672. Results were consistent across a wide range of one-way and probabilistic sensitivity analyses. CONCLUSIONS Based on traditional cost-effectiveness thresholds in Canada (CAD $50 000-60 000), DMF can be considered a cost-effective option compared to other first-line DMTs.
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Cook JE, Germano AL, Stadler G. An Exploratory Investigation of Social Stigma and Concealment in Patients with Multiple Sclerosis. Int J MS Care 2016; 18:78-84. [PMID: 27134581 DOI: 10.7224/1537-2073.2015-021] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE We conducted a preliminary investigation into dimensions of stigma and their relation to disease concealment in a sample of American adults living with multiple sclerosis (MS). METHODS Fifty-three adults with MS in the United States completed an online survey assessing anticipated, internalized, and isolation stigma, as well as concealment. RESULTS Responses to all the scales were relatively low, on average, but above scale minimums (P < .001). Ratings of isolation stigma and concealment were highest. Anticipated stigma strongly predicted concealment. CONCLUSIONS Many adults living with MS may be concerned that they will be the target of social stigma because of their illness. These concerns are associated with disease concealment. More research is needed to investigate how MS stigma and concealment may be independent contributors to health in patients with MS.
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Affiliation(s)
- Jonathan E Cook
- Department of Psychology, The Pennsylvania State University, University Park, PA, USA (JEC); Department of Psychology, Columbia University, New York, NY, USA (ALG); and Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, Scotland, UK (GS)
| | - Adriana L Germano
- Department of Psychology, The Pennsylvania State University, University Park, PA, USA (JEC); Department of Psychology, Columbia University, New York, NY, USA (ALG); and Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, Scotland, UK (GS)
| | - Gertraud Stadler
- Department of Psychology, The Pennsylvania State University, University Park, PA, USA (JEC); Department of Psychology, Columbia University, New York, NY, USA (ALG); and Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, Scotland, UK (GS)
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Gold R, Giovannoni G, Phillips JT, Fox RJ, Zhang A, Marantz JL. Sustained Effect of Delayed-Release Dimethyl Fumarate in Newly Diagnosed Patients with Relapsing-Remitting Multiple Sclerosis: 6-Year Interim Results From an Extension of the DEFINE and CONFIRM Studies. Neurol Ther 2016; 5:45-57. [PMID: 26932146 PMCID: PMC4919132 DOI: 10.1007/s40120-016-0042-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 02/02/2023] Open
Abstract
INTRODUCTION Delayed-release dimethyl fumarate (DMF; also known as gastro-resistant DMF) demonstrated clinical and neuroradiologic efficacy and safety in the Phase 3 DEFINE and CONFIRM trials, and in the extension study (ENDORSE), in patients with relapsing-remitting multiple sclerosis (RRMS). This post hoc analysis assessed DMF efficacy in newly diagnosed patients with RRMS with 6-year minimum follow-up. METHODS Patients randomized in DEFINE/CONFIRM to DMF 240 mg twice (BID) or thrice daily (TID) continued on same dosage in ENDORSE. Patients randomized to placebo (PBO) or glatiramer acetate (CONFIRM only) were re-randomized to DMF BID or TID. Results for DMF BID (approved dosage) are reported. Newly diagnosed patients were diagnosed within 1 year prior to DEFINE/CONFIRM entry and either treatment-naive or previously treated with corticosteroids alone. RESULTS The newly diagnosed population included 144 patients continuously treated with DMF BID in DEFINE/CONFIRM and ENDORSE (DMF/DMF) and 85 treated with PBO for 2 years in DEFINE/CONFIRM followed by 4 years of DMF BID in ENDORSE (PBO/DMF). At 6 years (ENDORSE Year 4), the annualized relapse rates [ARR; 95% confidence interval (CI)] were 0.137 (0.101, 0.186) and 0.168 (0.113, 0.252) for DMF/DMF and PBO/DMF, respectively; representing 19% risk reduction (P = 0.3988). PBO/DMF patients demonstrated improvements in ARR after switching to DMF in ENDORSE: 0.260 (0.182, 0.372) for Years 0-2 (DEFINE/CONFIRM) and 0.102 (0.064, 0.163) for Years 3-6 (ENDORSE), representing 61% risk reduction for Years 3-6 versus Years 1-2 (P < 0.0001). The proportion of patients with 24-week confirmed disability progression (95% CI) at 6 years was 15.7% (10.3%, 23.7%) in DMF/DMF and 24.3% (15.9%, 36.2%) in PBO/DMF, representing 49% risk reduction versus PBO/DMF (P = 0.0397). CONCLUSION Long-term DMF treatment demonstrated strong and sustained efficacy in newly diagnosed patients. Results suggest greater clinical benefits with earlier initiation of treatment in this patient population. FUNDING Biogen. TRIAL REGISTRATION ClinicalTrials.gov identifiers, NCT00835770 (ENDORSE); NCT00420212 (DEFINE); NCT00451451 (CONFIRM).
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Affiliation(s)
- Ralf Gold
- St. Josef Hospital, Ruhr University, Bochum, Germany
| | - Gavin Giovannoni
- Queen Mary University, London, Blizard Institute, Barts and the London School of Medicine and Dentistry, London, UK
| | - J Theodore Phillips
- Multiple Sclerosis Program, Baylor Institute for Immunology Research, Dallas, TX, USA
| | - Robert J Fox
- Mellen Center for Multiple Sclerosis Treatment and Research, Cleveland Clinic, Cleveland, OH, USA
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Granberg T, Uppman M, Hashim F, Cananau C, Nordin LE, Shams S, Berglund J, Forslin Y, Aspelin P, Fredrikson S, Kristoffersen-Wiberg M. Clinical Feasibility of Synthetic MRI in Multiple Sclerosis: A Diagnostic and Volumetric Validation Study. AJNR Am J Neuroradiol 2016; 37:1023-9. [PMID: 26797137 DOI: 10.3174/ajnr.a4665] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/24/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND PURPOSE Quantitative MR imaging techniques are gaining interest as methods of reducing acquisition times while additionally providing robust measurements. This study aimed to implement a synthetic MR imaging method on a new scanner type and to compare its diagnostic accuracy and volumetry with conventional MR imaging in patients with MS and controls. MATERIALS AND METHODS Twenty patients with MS and 20 healthy controls were enrolled after ethics approval and written informed consent. Synthetic MR imaging was implemented on a Siemens 3T scanner. Comparable conventional and synthetic proton-density-, T1-, and T2-weighted, and FLAIR images were acquired. Diagnostic accuracy, lesion detection, and artifacts were assessed by blinded neuroradiologic evaluation, and contrast-to-noise ratios, by manual tracing. Volumetry was performed with synthetic MR imaging, FreeSurfer, FMRIB Software Library, and Statistical Parametric Mapping. Repeatability was quantified by using the coefficient of variance. RESULTS Synthetic proton-density-, T1-, and T2-weighted images were of sufficient or good quality and were acquired in 7% less time than with conventional MR imaging. Synthetic FLAIR images were degraded by artifacts. Lesion counts and volumes were higher in synthetic MR imaging due to differences in the contrast of dirty-appearing WM but did not affect the radiologic diagnostic classification or lesion topography (P = .50-.77). Synthetic MR imaging provided segmentations with the shortest processing time (16 seconds) and the lowest repeatability error for brain volume (0.14%), intracranial volume (0.12%), brain parenchymal fraction (0.14%), and GM fraction (0.56%). CONCLUSIONS Synthetic MR imaging can be an alternative to conventional MR imaging for generating diagnostic proton-density-, T1-, and T2-weighted images in patients with MS and controls while additionally delivering fast and robust volumetric measurements suitable for MS studies.
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Affiliation(s)
- T Granberg
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Departments of Radiology (T.G., F.H., C.C., S.S., Y.F., P.A., M.K.-W)
| | - M Uppman
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Diagnostic Medical Physics (M.U., L.E.N., J.B.)
| | - F Hashim
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Departments of Radiology (T.G., F.H., C.C., S.S., Y.F., P.A., M.K.-W)
| | - C Cananau
- Departments of Radiology (T.G., F.H., C.C., S.S., Y.F., P.A., M.K.-W)
| | - L E Nordin
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Diagnostic Medical Physics (M.U., L.E.N., J.B.)
| | - S Shams
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Departments of Radiology (T.G., F.H., C.C., S.S., Y.F., P.A., M.K.-W)
| | - J Berglund
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Diagnostic Medical Physics (M.U., L.E.N., J.B.)
| | - Y Forslin
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Departments of Radiology (T.G., F.H., C.C., S.S., Y.F., P.A., M.K.-W)
| | - P Aspelin
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Departments of Radiology (T.G., F.H., C.C., S.S., Y.F., P.A., M.K.-W)
| | - S Fredrikson
- Clinical Neuroscience (S.F.), Karolinska Institutet, Stockholm, Sweden Neurology (S.F.), Karolinska University Hospital, Stockholm, Sweden
| | - M Kristoffersen-Wiberg
- From the Departments of Clinical Science, Intervention and Technology (T.G., M.U., F.H., L.E.N., S.S., J.B., Y.F., P.A., M.K.-W.) Departments of Radiology (T.G., F.H., C.C., S.S., Y.F., P.A., M.K.-W)
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Efendi H. Clinically Isolated Syndromes: Clinical Characteristics, Differential Diagnosis, and Management. Noro Psikiyatr Ars 2015; 52:S1-S11. [PMID: 28360754 DOI: 10.5152/npa.2015.12608] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 11/18/2015] [Indexed: 11/22/2022] Open
Abstract
Clinically isolated syndrome (CIS) is a term that describes the first clinical onset of potential multiple sclerosis (MS). The term CIS is typically applied to young adults with episodes of acute or subacute onset, which reaches a peak quite rapidly within 2-3 weeks. In 85% of young adults who develop MS, onset occurs with an acute, CIS of the optic nerves, brainstem, or spinal cord. When clinically silent brain lesions are seen on MRI, the likelihood of developing MS is high. Because no single clinical feature or diagnostic test is sufficient for the diagnosis of CIS, diagnostic criteria have included a combination of both clinical and paraclinical studies. Diagnostic criteria from the International Panel of McDonald and colleagues incorporate MRI evidence of dissemination in time and space to allow a diagnosis of definite MS in patients with CIS. As CIS is typically the earliest clinical expression of MS, research on patients with CIS may provide new insights into early pathological changes and pathogenetic mechanisms that might affect the course of the disorder. With recent improvements in diagnosis and the advent of disease-modifying treatments for MS, there has been growing interest and research in patients with CIS.
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Affiliation(s)
- Hüsnü Efendi
- Department of Neurology, Division of Internal Medicine, Kocaeli University Research and Practice Hospital, Kocaeli, Turkey
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Rovira À, Wattjes MP, Tintoré M, Tur C, Yousry TA, Sormani MP, De Stefano N, Filippi M, Auger C, Rocca MA, Barkhof F, Fazekas F, Kappos L, Polman C, Miller D, Montalban X. Evidence-based guidelines: MAGNIMS consensus guidelines on the use of MRI in multiple sclerosis-clinical implementation in the diagnostic process. Nat Rev Neurol 2015; 11:471-82. [PMID: 26149978 DOI: 10.1038/nrneurol.2015.106] [Citation(s) in RCA: 302] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The clinical use of MRI in patients with multiple sclerosis (MS) has advanced markedly over the past few years. Technical improvements and continuously emerging data from clinical trials and observational studies have contributed to the enhanced performance of this tool for achieving a prompt diagnosis in patients with MS. The aim of this article is to provide guidelines for the implementation of MRI of the brain and spinal cord in the diagnosis of patients who are suspected of having MS. These guidelines are based on an extensive review of the recent literature, as well as on the personal experience of the members of the MAGNIMS (Magnetic Resonance Imaging in MS) network. We address the indications, timing, coverage, reporting and interpretation of MRI studies in patients with suspected MS. Our recommendations are intended to help radiologists and neurologists standardize and optimize the use of MRI in clinical practice for the diagnosis of MS.
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Affiliation(s)
- Àlex Rovira
- Magnetic Resonance Unit, Cemcat, Hospital Vall d'Hebron, Autonomous University of Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Mike P Wattjes
- MS Centre Amsterdam, VU University Medical Centre, Netherlands
| | - Mar Tintoré
- Neurology/Neuroimmunology Unit, Cemcat, Hospital Vall d'Hebron, Autonomous University of Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Carmen Tur
- Neurology/Neuroimmunology Unit, Cemcat, Hospital Vall d'Hebron, Autonomous University of Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Tarek A Yousry
- Lysholm Department of Neuroradiology, UCLH National Hospital for Neurology and Neurosurgery, University College London Institute of Neurology, UK
| | - Maria P Sormani
- Biostatistics Unit, Department of Health Sciences, University of Genoa, Italy
| | - Nicola De Stefano
- Department of Neurological and Behavioural Sciences, University of Siena, Italy
| | - Massimo Filippi
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Italy
| | - Cristina Auger
- Magnetic Resonance Unit, Cemcat, Hospital Vall d'Hebron, Autonomous University of Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Maria A Rocca
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Italy
| | | | - Franz Fazekas
- Department of Neurology, Medical University of Graz, Austria
| | - Ludwig Kappos
- Department of Neurology, University of Basel, Switzerland
| | - Chris Polman
- MS Centre Amsterdam, VU University Medical Centre, Netherlands
| | - David Miller
- NMR Research Unit, Queen Square MS Centre, University College London Institute of Neurology, UK
| | - Xavier Montalban
- Magnetic Resonance Unit, Cemcat, Hospital Vall d'Hebron, Autonomous University of Barcelona, Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
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Yermakov S, Davis M, Calnan M, Fay M, Cox-Buckley B, Sarda S, Duh MS, Iyer R. Impact of increasing adherence to disease-modifying therapies on healthcare resource utilization and direct medical and indirect work loss costs for patients with multiple sclerosis. J Med Econ 2015; 18:711-20. [PMID: 25903661 DOI: 10.3111/13696998.2015.1044276] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVES To estimate the effect of adherence to disease-modifying therapies (DMTs) among patients with multiple sclerosis (MS) on healthcare resource utilization (HRU) and costs, and model the impact of a 10 percentage point increase in adherence on these outcomes. METHODS Employed patients, 18-64 years old, with ≥2 MS diagnoses and ≥1 DMT claim during January 1, 2002 to September 30, 2012 were identified from a large commercially-insured US claims database. Adherence was measured as proportion of days covered (PDC) during follow-up. Multivariate regression analyses were conducted to estimate the effect of adherence on HRU related to urgent care (i.e., inpatient or emergency room visit), days of work loss, direct medical cost, and indirect work loss costs. Model coefficients were used to evaluate the impact of a 10 percentage point increase in adherence on the outcomes. RESULTS A total of 1510 patients were included (mean age = 43.4 years, 64% female). Patients with higher adherence had lower HRU, fewer days of work loss, and lower direct and indirect costs. A 10 percentage point increase in adherence significantly decreased the likelihood of an inpatient or emergency room visit by 9-19%, days of work loss by 3-8%, and direct and indirect costs by 3-5%, depending on the follow-up period (all p < 0.01). CONCLUSIONS Increasing DMT adherence was found to significantly decrease urgent-care HRU, days of work loss, and direct and indirect costs among patients with MS.
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Acceptance of the extracare program by Beta interferon-treated patients with multiple sclerosis: results of the explore study. J Neurosci Nurs 2014; 47:E31-9. [PMID: 25285595 PMCID: PMC4334305 DOI: 10.1097/jnn.0000000000000100] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND To gain full benefit from disease-modifying therapies such as interferon β-1b, patients with multiple sclerosis (MS) need to adhere to treatment in the long term. Treatment adherence requires high patient satisfaction with treatment and care. OBJECTIVES Our aim was to evaluate the satisfaction of patients with MS receiving interferon β-1b Extavia with the patient care program Extracare. Efficacy and safety of treatment were evaluated as secondary objectives. METHODS In this prospective, noninterventional 1-year study, data on the satisfaction of 174 patients with MS with Extracare were obtained by questionnaires. Disability and symptom severity as well as patients' reported activity limitations, quality of life, and fatigue were recorded. RESULTS We observed high levels of patients' satisfaction with MS nurses, telephonic care, and information provided by Extracare (values ≤ 1.53 on a Likert scale ranging from 1 [very good] to 6 [insufficient]). Patient reported quality of life (Patient Reported Indices for MS QoL) improved from 11.82 ± 11.36 at baseline to 9.74 ± 10.94 at the end of the study (p = .02), whereas clinical parameters of disease progression remained unchanged. Rate of adverse events was as expected. CONCLUSIONS This study provides the basis for further improvements of care programs to increase treatment adherence of patients with MS.
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Impact of delayed diagnosis and treatment in clinically isolated syndrome and multiple sclerosis. J Neurosci Nurs 2014; 45:S3-13. [PMID: 24217189 DOI: 10.1097/jnn.0000000000000021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Multiple sclerosis (MS) is a progressive inflammatory disease with several possible clinical courses; before the development of definite MS, some patients may have clinically isolated syndrome (CIS), which is a single attack of neurological symptoms caused by inflammation or demyelination. Disease-modifying treatments (DMTs) have been extensively used for the management of MS, resulting in improvements in the clinical presentation and decreases in MS-associated neurological damage. Earlier initiation of DMT in the course of MS is associated with better outcomes. For patients with CIS, initiation of interferon-beta or glatiramer acetate treatment after an initial clinical event indicative of MS has been associated with delays in the progression to clinically definite MS as well as improvements in measures of neurological damage via magnetic resonance imaging. The initiation of treatment for patients with CIS should be considered, and nurses play a vital role in educating patients about the risks of conversion to MS and the benefits of early DMT.
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Broadley SA, Barnett MH, Boggild M, Brew BJ, Butzkueven H, Heard R, Hodgkinson S, Kermode AG, Lechner-Scott J, Macdonell RAL, Marriott M, Mason DF, Parratt J, Reddel SW, Shaw CP, Slee M, Spies J, Taylor BV, Carroll WM, Kilpatrick TJ, King J, McCombe PA, Pollard JD, Willoughby E. Therapeutic approaches to disease modifying therapy for multiple sclerosis in adults: an Australian and New Zealand perspective: part 3 treatment practicalities and recommendations. MS Neurology Group of the Australian and New Zealand Association of Neurologists. J Clin Neurosci 2014; 21:1857-65. [PMID: 24993136 DOI: 10.1016/j.jocn.2014.01.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 01/28/2014] [Indexed: 11/29/2022]
Abstract
In this third and final part of our review of multiple sclerosis (MS) treatment we look at the practical day-to-day management issues that are likely to influence individual treatment decisions. Whilst efficacy is clearly of considerable importance, tolerability and the potential for adverse effects often play a significant role in informing individual patient decisions. Here we review the issues surrounding switching between therapies, and the evidence to assist guiding the choice of therapy to change to and when to change. We review the current level of evidence with regards to the management of women in their child-bearing years with regards to recommendations about treatment during pregnancy and whilst breast feeding. We provide a summary of recommended pre- and post-treatment monitoring for the available therapies and review the evidence with regards to the value of testing for antibodies which are known to be neutralising for some therapies. We review the occurrence of adverse events, both the more common and troublesome effects and those that are less common but have potentially much more serious outcomes. Ways of mitigating these risks and managing the more troublesome adverse effects are also reviewed. Finally, we make specific recommendations with regards to the treatment of MS. It is an exciting time in the world of MS neurology and the prospects for further advances in coming years are high.
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Affiliation(s)
- Simon A Broadley
- School of Medicine, Griffith University, Gold Coast Campus, QLD 4222, Australia; Department of Neurology, Gold Coast University Hospital, Southport, QLD, Australia.
| | - Michael H Barnett
- Brain and Mind Research Institute, University of Sydney, Camperdown, NSW, Australia
| | - Mike Boggild
- Department of Neurology, The Townsville Hospital, Douglas, QLD, Australia
| | - Bruce J Brew
- Department of Neurology and St Vincent's Centre for Applied Medical Research, St Vincent's Hospital, University of New South Wales, Darlinghurst, NSW, Australia
| | - Helmut Butzkueven
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia; Department of Neurology, Eastern Health and Monash University, 2/5 Arnold Street, Box Hill VIC 3128, Australia
| | - Robert Heard
- Westmead Clinical School, University of Sydney, NSW, Australia
| | - Suzanne Hodgkinson
- South Western Sydney Clinical School, University of New South Wales, NSW, Australia
| | - Allan G Kermode
- Centre for Neuromuscular and Neurological Disorders, University of Western Australia, WA, Australia
| | | | | | - Mark Marriott
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia
| | - Deborah F Mason
- Department of Neurology, Christchurch Hospital, Christchurch, New Zealand
| | - John Parratt
- Central Clinical School, University of Sydney, NSW, Australia
| | - Stephen W Reddel
- Brain and Mind Research Institute, University of Sydney, Camperdown, NSW, Australia
| | | | - Mark Slee
- Flinders Medical Centre, Flinders University, SA, Australia
| | - Judith Spies
- Brain and Mind Research Institute, University of Sydney, Camperdown, NSW, Australia
| | - Bruce V Taylor
- Menzies Research Institute, University of Tasmania, TAS, Australia
| | - William M Carroll
- Centre for Neuromuscular and Neurological Disorders, University of Western Australia, WA, Australia
| | | | - John King
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - Pamela A McCombe
- University of Queensland Centre for Clinical Research, QLD, Australia
| | - John D Pollard
- Brain and Mind Research Institute, University of Sydney, Camperdown, NSW, Australia
| | - Ernest Willoughby
- Department of Neurology, Auckland City Hospital, Auckland, New Zealand
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Núñez C, Cénit MC, Alvarez-Lafuente R, Río J, Fernández-Arquero M, Arroyo R, Montalbán X, Fernández O, Oliver-Martos B, Leyva L, Comabella M, Urcelay E. HLA alleles as biomarkers of high-titre neutralising antibodies to interferon-β therapy in multiple sclerosis. J Med Genet 2014; 51:395-400. [DOI: 10.1136/jmedgenet-2014-102348] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Senel M, Tumani H, Lauda F, Presslauer S, Mojib-Yezdani R, Otto M, Brettschneider J. Cerebrospinal fluid immunoglobulin kappa light chain in clinically isolated syndrome and multiple sclerosis. PLoS One 2014; 9:e88680. [PMID: 24695382 PMCID: PMC3973621 DOI: 10.1371/journal.pone.0088680] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Accepted: 01/09/2014] [Indexed: 01/06/2023] Open
Abstract
Background Oligoclonal bands (OCB) are the most widely used CSF test to support the diagnosis of MS and to predict conversion of clinically isolated syndrome (CIS) to multiple sclerosis (MS). Since OCB tests are based on non-quantitative and difficult to standardise techniques, measurement of immunoglobulin kappa free light chains (KFLC) may represent an easier to use quantitative test. Methods KFLC were measured in CSF and serum of 211 patients using ELISA. These include patients without any inflammatory central nervous system reaction (NIND, n = 77), MS (n = 20), viral CNS infections (V-CNS-I, n = 10), neuroborreliosis (NB, n = 17) and other bacterial CNS infections (B-CNS-I, n = 10). Furthermore a cohort of 77 patients with CIS, including 39 patients that remained CIS over follow-up of two years (CIS-CIS) and 38 patients that developed MS over the same follow-up time (CIS-MS). Results CSF-serum ratio of KFLC (Q KFLC) was elevated in all patients with MS, 86.8% of patients with CIS-MS and 61.5% of patients with CIS-CIS. It was significantly elevated in CIS with presence of OCB (p<0.001). Q KFLC significantly correlated with other CSF variables such as CSF leukocyte count (p<0.001, R = 0.46), CSF CXCL13 levels (p<0.001, R = 0.64) and also intrathecal IgG synthesis (p<0.001, R = 0.74) as determined by nephelometry and quotient diagram. OCB were detected in 66.7% of CIS-CIS and in 92.1% of CIS-MS. Conclusions Although the measurement of CSF KFLC is a rapid and quantitative easy to standardize tool, it is almost equal but not superior to OCB with regard to diagnostic sensitivity and specificity in patients with early MS.
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Affiliation(s)
- Makbule Senel
- Department of Neurology, University of Ulm, Ulm, Germany
| | - Hayrettin Tumani
- Department of Neurology, University of Ulm, Ulm, Germany
- * E-mail:
| | - Florian Lauda
- Department of Neurology, University of Ulm, Ulm, Germany
| | | | | | - Markus Otto
- Department of Neurology, University of Ulm, Ulm, Germany
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Flegel M, Knox K, Nickel D. Step-length variability in minimally disabled women with multiple sclerosis or clinically isolated syndrome. Int J MS Care 2014; 14:26-30. [PMID: 24453729 DOI: 10.7224/1537-2073-14.1.26] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Gait is one of the most frequently impaired bodily functions in multiple sclerosis (MS). Determining abnormal parameters of gait in early MS could influence MS treatment and rehabilitation. The purpose of this study was to determine whether increased step-length variability could be detected in minimally disabled patients with MS or clinically isolated syndrome (CIS) using a sensored walkway gait analysis system. Nine participants with MS/CIS and nine age- and gender-matched controls were recruited for this study. MS/CIS participants underwent a neurologic examination, and all participants completed a screening interview. Each participant completed three walks at a self-selected pace and three walks at a brisk pace across the GAITRite walkway (MAP/CIR Inc, Havertown, PA). Mean values for step-length variability, step length, and velocity were calculated for each participant's self-selected and brisk trials. Independent t tests were used to compare MS/CIS participants with controls, and effect sizes were calculated. Step-length variability in the left leg at the self-selected pace was found to be greater in participants with MS/CIS than in controls, although no significant differences were found in velocity or step length. Step-length variability measurement shows promise in detecting subtle gait dysfunction. Larger, prospective studies exploring step-length variability may determine its clinical viability for detecting subtle gait dysfunction and could lead to improved prognostication of disability progression in MS.
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Affiliation(s)
- Melanie Flegel
- College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Katherine Knox
- College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Darren Nickel
- College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Naegele M, Martin R. The good and the bad of neuroinflammation in multiple sclerosis. HANDBOOK OF CLINICAL NEUROLOGY 2014; 122:59-87. [PMID: 24507513 DOI: 10.1016/b978-0-444-52001-2.00003-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Multiple sclerosis (MS) is the most common inflammatory, demyelinating, neurodegenerative disorder of the central nervous system (CNS). It is widely considered a T-cell mediated autoimmune disease that develops in genetically susceptible individuals, possibly under the influence of certain environmental trigger factors. The invasion of autoreactive CD4+ T-cells into the CNS is thought to be a central step that initiates the disease. Several other cell types, including CD8+ T-cells, B-cells and phagocytes appear to be involved in causing inflammation and eventually neurodegeneration. But inflammation is not entirely deleterious in MS. Evidence has accumulated in the recent years that show the importance of regulatory immune mechanisms which restrain tissue damage and initiate regeneration. More insight into the beneficial aspects of neuroinflammation might allow us to develop new treatment strategies for this enigmatic disease.
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Affiliation(s)
- Matthias Naegele
- Institute for Neuroimmunology and Clinical Multiple Sclerosis Research, Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Roland Martin
- Neuroimmunology and MS Research, Neurology Clinic, University Hospital, Zurich, Switzerland.
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Curley M, Josey L, Lucas R, Dear K, Taylor BV, Coulthard A, Chapman C, Coulthard A, Dear K, Dwyer T, Kilpatrick T, Lucas R, McMichael T, Pender MP, Ponsonby AL, Taylor B, Valery P, van der Mei I, Williams D. Adherence to MRI protocol consensus guidelines in multiple sclerosis: an Australian multi-centre study. J Med Imaging Radiat Oncol 2013; 56:594-8. [PMID: 23210577 DOI: 10.1111/1754-9485.12000] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Accepted: 09/28/2012] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Multiple sclerosis (MS) is a debilitating disease that causes significant morbidity within a young demographic. Diagnostic guidelines for MS have evolved, and imaging has played an increasingly important role in diagnosis over the last two decades. For imaging to contribute to diagnosis in a meaningful way, it must be reproducible. Consensus guidelines for MRI in MS exist to define correct sequence type and imaging technique, but it is not clear to what extent they are followed. This study reviewed MRI studies performed on Australian individuals presenting with a first clinical diagnosis of central nervous system demyelination (FCD) for adherence to published guidelines and discussed practical implementation of MS guidelines in light of recent updates. METHODS The Ausimmune study was a prospective case control study of Australian participants presenting with FCD from 2003 to 2006. Baseline cranial and spinal cord MRI studies of 226 case participants from four separate Australian regions were reviewed. MRI sequences were classified according to anatomical location, slice plane, tissue weighting and use of gadolinium-containing contrast media. Results were compared with the 2003 Consortium of Multiple Sclerosis Centres MRI protocol for the diagnosis of MS. RESULTS The composition of core cranial MRI sequences performed varied across the 226 scans. Of the studies, 91% included sagittal fluid attenuated inversion recovery (FLAIR) sequences. Cranial axial T2-weighted, axial FLAIR and axial proton density-weighted sequences were performed in 88%, 60% and 16% (respectively) of scans. Only 25% of the studies included a T1-weighted contrast-enhanced sequence. Concordance with the guidelines in all sequences was very low (2). CONCLUSION Only a small number of MRI investigations performed included all of the sequences stipulated by consensus guidelines. This is likely due to poor awareness in the imaging community of the guidelines and the rationale behind certain sequences. Radiologists with a sub-speciality interest in neuroradiology should take ownership of this issue and ensure that recommended imaging guidelines are followed.
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Affiliation(s)
- Michael Curley
- Department of Medical Imaging, Royal Brisbane and Women's Hospital, Australia
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Koeser L, McCrone P. Cost-effectiveness of natalizumab in multiple sclerosis: an updated systematic review. Expert Rev Pharmacoecon Outcomes Res 2013; 13:171-82. [PMID: 23570427 DOI: 10.1586/erp.13.14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
As natalizumab (Tysabri; Elan Pharmaceuticals, Inc., Dublin, Ireland) and other disease-modifying drugs are entering the market for multiple sclerosis, the treatment repertoire is expanding beyond the established first-line treatments. This is creating new opportunities but also increasing the uncertainty in the appropriate management of this condition with its considerable societal burden. As a result, economic evaluations are increasingly influential in healthcare decision making. Seven evaluations that included natalizumab have been published to date. They largely report favorable results for this treatment compared with other drugs. However, the models used to reach these conclusions have been subjected to significant debate, owing to limited data availability as well as the methodological complexities and uncertainties in the pharmacoeconomics of multiple sclerosis. This review critically discusses the available evidence based on the cost-effectiveness of natalizumab and uses the data to explain more general issues in the evaluation of similar drugs. The review also suggests how shortcomings in current studies may potentially be addressed in the future.
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Affiliation(s)
- Leonardo Koeser
- Centre for the Economics of Mental and Physical Health, Health Service and Population Research Department, PO24 David Goldberg Centre, Institute of Psychiatry at King's College London, De Crespigny Park, London, SE5 8AF, UK
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Initial immunopathogenesis of multiple sclerosis: innate immune response. Clin Dev Immunol 2013; 2013:413465. [PMID: 24174969 PMCID: PMC3794540 DOI: 10.1155/2013/413465] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 07/01/2013] [Accepted: 08/09/2013] [Indexed: 12/13/2022]
Abstract
Multiple sclerosis (MS) is an inflammatory, demyelinating, and neurodegenerative disease of the central nervous system. The hallmark to MS is the demyelinated plaque, which consists of a well-demarcated hypocellular area characterized by the loss of myelin, the formation of astrocytic scars, and the mononuclear cell infiltrates concentrated in perivascular spaces composed of T cells, B lymphocytes, plasma cells, and macrophages. Activation of resident cells initiates an inflammatory cascade, leading to tissue destruction, demyelination, and neurological deficit. The immunological phenomena that lead to the activation of autoreactive T cells to myelin sheath components are the result of multiple and complex interactions between environment and genetic background conferring individual susceptibility. Within the CNS, an increase of TLR expression during MS is observed, even in the absence of any apparent microbial involvement. In the present review, we focus on the role of the innate immune system, the first line of defense of the organism, as promoter and mediator of cross reactions that generate molecular mimicry triggering the inflammatory response through an adaptive cytotoxic response in MS.
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Sargento-Freitas J, Batista S, Macario C, Matias F, Sousa L. Clinical predictors of an optimal response to natalizumab in multiple sclerosis. J Clin Neurosci 2013; 20:659-62. [DOI: 10.1016/j.jocn.2012.04.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 02/20/2012] [Accepted: 04/06/2012] [Indexed: 11/25/2022]
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Kolasinski J, Stagg CJ, Chance SA, Deluca GC, Esiri MM, Chang EH, Palace JA, McNab JA, Jenkinson M, Miller KL, Johansen-Berg H. A combined post-mortem magnetic resonance imaging and quantitative histological study of multiple sclerosis pathology. ACTA ACUST UNITED AC 2013; 135:2938-51. [PMID: 23065787 PMCID: PMC3470716 DOI: 10.1093/brain/aws242] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Multiple sclerosis is a chronic inflammatory neurological condition characterized by focal and diffuse neurodegeneration and demyelination throughout the central nervous system. Factors influencing the progression of pathology are poorly understood. One hypothesis is that anatomical connectivity influences the spread of neurodegeneration. This predicts that measures of neurodegeneration will correlate most strongly between interconnected structures. However, such patterns have been difficult to quantify through post-mortem neuropathology or in vivo scanning alone. In this study, we used the complementary approaches of whole brain post-mortem magnetic resonance imaging and quantitative histology to assess patterns of multiple sclerosis pathology. Two thalamo-cortical projection systems were considered based on their distinct neuroanatomy and their documented involvement in multiple sclerosis: lateral geniculate nucleus to primary visual cortex and mediodorsal nucleus of the thalamus to prefrontal cortex. Within the anatomically distinct thalamo-cortical projection systems, magnetic resonance imaging derived cortical thickness was correlated significantly with both a measure of myelination in the connected tract and a measure of connected thalamic nucleus cell density. Such correlations did not exist between these markers of neurodegeneration across different thalamo-cortical systems. Magnetic resonance imaging lesion analysis depicted clearly demarcated subcortical lesions impinging on the white matter tracts of interest; however, quantitation of the extent of lesion-tract overlap failed to demonstrate any appreciable association with the severity of markers of diffuse pathology within each thalamo-cortical projection system. Diffusion-weighted magnetic resonance imaging metrics in both white matter tracts were correlated significantly with a histologically derived measure of tract myelination. These data demonstrate for the first time the relevance of functional anatomical connectivity to the spread of multiple sclerosis pathology in a ‘tract-specific’ pattern. Furthermore, the persisting relationship between metrics from post-mortem diffusion-weighted magnetic resonance imaging and histological measures from fixed tissue further validates the potential of imaging for future neuropathological studies.
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Affiliation(s)
- James Kolasinski
- Centre for Functional Magnetic Resonance Imaging of the Brain (FMRIB), University of Oxford, Oxford, OX3 9DU, UK
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Peyrin-Biroulet L, Billioud V, D'Haens G, Panaccione R, Feagan B, Panés J, Danese S, Schreiber S, Ogata H, Hibi T, Higgins PDR, Beaugerie L, Chowers Y, Louis E, Steinwurz F, Reinisch W, Rutgeerts P, Colombel JF, Travis S, Sandborn WJ. Development of the Paris definition of early Crohn's disease for disease-modification trials: results of an international expert opinion process. Am J Gastroenterol 2012; 107:1770-6. [PMID: 23211844 DOI: 10.1038/ajg.2012.117] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report the findings and outputs of an international expert opinion process to develop a definition of early Crohn's disease (CD) that could be used in future disease-modification trials. Nineteen experts on inflammatory bowel diseases held an international expert opinion meeting to discuss and agree on a definition for early CD to be used in disease-modification trials. The process included literature searches for the relevant basic-science and clinical evidence. A published preliminary definition of early CD was used as the basis for development of a proposed definition that was discussed at the expert opinion meeting. The participants then derived a final definition, based on best current knowledge, that it is hoped will be of practical use in disease-modification trials in CD.
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Affiliation(s)
- Laurent Peyrin-Biroulet
- INSERM U954 and Department of Hepato-Gastroenterology, University Hospital of Nancy, Université Henri Poincaré 1, Vandoeuvre-lès-Nancy, France.
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Kraemer M, Herold M, Uekermann J, Kis B, Daum I, Wiltfang J, Berlit P, Diehl RR, Abdel-Hamid M. Perception of affective prosody in patients at an early stage of relapsing-remitting multiple sclerosis. J Neuropsychol 2012; 7:91-106. [PMID: 23126275 DOI: 10.1111/j.1748-6653.2012.02037.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 05/27/2012] [Accepted: 09/11/2012] [Indexed: 11/30/2022]
Abstract
Cognitive dysfunction is well known in patients suffering from multiple sclerosis (MS) and has been described for many years. Cognitive impairment, memory, and attention deficits seem to be features of advanced MS stages, whereas depression and emotional instability already occur in early stages of the disease. However, little is known about processing of affective prosody in patients in early stages of relapsing-remitting MS (RRMS). In this study, tests assessing attention, memory, and processing of affective prosody were administered to 25 adult patients with a diagnosis of RRMS at an early stage and to 25 healthy controls (HC). Early stages of the disease were defined as being diagnosed with RRMS in the last 2 years and having an Expanded Disability Status Scale (EDSS) of 2 or lower. Patients and HC were comparable in intelligence quotient (IQ), educational level, age, handedness, and gender. Patients with early stages of RRMS performed below the control group with respect to the subtests 'discrimination of affective prosody' and 'matching of affective prosody to facial expression' for the emotion 'angry' of the 'Tübingen Affect Battery'. These deficits were not related to executive performance. Our findings suggest that emotional prosody comprehension is deficient in young patients with early stages of RRMS. Deficits in discriminating affective prosody early in the disease may make misunderstandings and poor communication more likely. This might negatively influence interpersonal relationships and quality of life in patients with RRMS.
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Affiliation(s)
- Markus Kraemer
- Department of Neurology, Alfried Krupp von Bohlen und Halbach Hospital, Essen, Germany.
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Freedman MS. Do not treat from CIS onset: evaluate disease course and prognosis first--no (treat!). Mult Scler 2012; 18:394-5. [PMID: 22473501 DOI: 10.1177/1352458512440605] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Mark S Freedman
- Multiple Sclerosis Research Clinic, The Ottawa Hospital, and University of Ottawa, The Ottawa Hospital Research Institute, 501 Smyth Road, Ottawa, Ontario, Canada.
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Granberg T, Martola J, Kristoffersen-Wiberg M, Aspelin P, Fredrikson S. Radiologically isolated syndrome--incidental magnetic resonance imaging findings suggestive of multiple sclerosis, a systematic review. Mult Scler 2012; 19:271-80. [PMID: 22760099 DOI: 10.1177/1352458512451943] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
With increasing availability of magnetic resonance imaging (MRI), there is also an increase in incidental abnormal findings. MRI findings suggestive of multiple sclerosis in persons without typical multiple sclerosis symptoms and with normal neurological findings are defined as radiologically isolated syndrome (RIS). Half of the persons with RIS have their initial MRI because of headache, and some have a subclinical cognitive impairment similar to that seen in multiple sclerosis. Radiological measurements also show a similarity between RIS and multiple sclerosis. Approximately two-thirds of persons with RIS show radiological progression and one-third develop neurological symptoms during mean follow-up times of up to five years. Cervical cord lesions are important predictors of clinical conversion. Management has to be individualised, but initiation of disease modifying therapy is controversial and not recommended outside of clinical trials since its effects have not been studied in RIS. Future studies should try to establish the prevalence and long-term prognosis of RIS, its impact on quality of life, and define the role of disease modifying therapy in RIS.
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Affiliation(s)
- Tobias Granberg
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Sweden.
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Bergamaschi R, Quaglini S, Tavazzi E, Amato MP, Paolicelli D, Zipoli V, Romani A, Tortorella C, Portaccio E, D'Onghia M, Garberi F, Bargiggia V, Trojano M. Immunomodulatory therapies delay disease progression in multiple sclerosis. Mult Scler 2012; 22:1732-1740. [PMID: 22653657 DOI: 10.1177/1352458512445941] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Accepted: 03/28/2012] [Indexed: 11/17/2022]
Abstract
BACKGROUND Few studies have analysed long-term effects of immunomodulatory disease modifying drugs (DMDs). OBJECTIVE Assessment of the efficacy of DMDs on long-term evolution of multiple sclerosis, using a Bayesian approach to overcome methodological problems related to open-label studies. METHODS MS patients from three different Italian multiple sclerosis centres were divided into subgroups according to the presence of treatment in their disease history before the endpoint, which was represented by secondary progression. Patients were stratified on the basis of the risk score BREMS (Bayesian risk estimate for multiple sclerosis), which is able to predict the unfavourable long-term evolution of MS at an early stage. RESULTS We analysed data from 1178 patients with a relapsing form of multiple sclerosis at onset and at least 10 years of disease duration, treated (59%) or untreated with DMDs. The risk of secondary progression was significantly lower in patients treated with DMDs, regardless of the initial prognosis predicted by BREMS. CONCLUSIONS DMDs significantly reduce the risk of multiple sclerosis progression both in patients with initial high-risk and patients with initial low-risk. These findings reinforce the role of DMDs in modifying the natural course of the disease, suggesting that they have a positive effect not only on the inflammatory but also on the neurodegenerative process. The study also confirms the capability of the BREMS score to predict MS evolution.
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Affiliation(s)
- Roberto Bergamaschi
- Multiple Sclerosis Centre, Department of Clinical Neurology, Neurological Institute C. Mondino, Via Mondino 2, 27100 Pavia, Italy
| | - Silvana Quaglini
- Department of Computer Engineering and Systems Science, University of Pavia, Italy
| | - Eleonora Tavazzi
- Centre of Research in Multiple Sclerosis (CRISM), Neurological Institute C. Mondino, Italy
| | - Maria Pia Amato
- Department of Neurological and Psychiatric Sciences, University of Florence, Italy
| | - Damiano Paolicelli
- Department of Neurological and Psychiatric Sciences, University of Bari, Italy
| | - Valentina Zipoli
- Department of Neurological and Psychiatric Sciences, University of Florence, Italy
| | - Alfredo Romani
- Centre of Research in Multiple Sclerosis (CRISM), Neurological Institute C. Mondino, Italy
| | - Carla Tortorella
- Department of Neurological and Psychiatric Sciences, University of Bari, Italy
| | - Emilio Portaccio
- Department of Neurological and Psychiatric Sciences, University of Florence, Italy
| | - Mariangela D'Onghia
- Department of Neurological and Psychiatric Sciences, University of Bari, Italy
| | - Francesca Garberi
- Department of Computer Engineering and Systems Science, University of Pavia, Italy
| | - Valeria Bargiggia
- Centre of Research in Multiple Sclerosis (CRISM), Neurological Institute C. Mondino, Italy
| | - Maria Trojano
- Department of Neurological and Psychiatric Sciences, University of Bari, Italy
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50
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Downer EJ, Clifford E, Amu S, Fallon PG, Moynagh PN. The synthetic cannabinoid R(+)WIN55,212-2 augments interferon-β expression via peroxisome proliferator-activated receptor-α. J Biol Chem 2012; 287:25440-53. [PMID: 22654113 DOI: 10.1074/jbc.m112.371757] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We have demonstrated that R(+)WIN55,212-2, a synthetic cannabinoid that possesses cannabimimetic properties, acts as a novel regulator of Toll-like receptor 3 (TLR3) signaling to interferon (IFN) regulatory factor 3 (IRF3) activation and IFN-β expression, and this is critical for manifesting its protective effects in a murine multiple sclerosis model. Here we investigated the role of peroxisome proliferator-activated receptor-α (PPARα) in mediating the effects of R(+)WIN55,212-2 on this pathway. Data herein demonstrate that the TLR3 agonist poly(I:C) promotes IFN-β expression and R(+)WIN55,212-2 enhances TLR3-induced IFN-β expression in a stereoselective manner via PPARα. R(+)WIN55,212-2 promotes increased transactivation and expression of PPARα. Using the PPARα antagonist GW6471, we demonstrate that R(+)WIN55,212-2 acts via PPARα to activate JNK, activator protein-1, and positive regulatory domain IV to transcriptionally regulate the IFN-β promoter. Furthermore, GW6471 ameliorated the protective effects of R(+)WIN55,212-2 during the initial phase of experimental autoimmune encephalomyelitis. Overall, these findings define PPARα as an important mediator in manifesting the effects of R(+)WIN55,212-2 on the signaling cascade regulating IFN-β expression. The study adds to our molecular appreciation of potential therapeutic effects of R(+)WIN55,212-2 in multiple sclerosis.
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Affiliation(s)
- Eric J Downer
- Institute of Immunology, National University of Ireland Maynooth, County Kildare, Ireland
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