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Hiramatsu K, Maeda H. Adult and pediatric relapsing multiple sclerosis phase II and phase III trial design and their primary end points: A systematic review. Clin Transl Sci 2024; 17:e13794. [PMID: 38708586 PMCID: PMC11070945 DOI: 10.1111/cts.13794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 02/22/2024] [Accepted: 04/01/2024] [Indexed: 05/07/2024] Open
Abstract
No systematic review of trial designs in patients with relapsing multiple sclerosis (RMS) was reported. This systematic review was conducted on the trial designs and primary end points (PEs) of phase II and III trials intended to modify the natural course of the disease in patients with RMS. The purpose of the study is to explore trends/topics and discussion points in clinical trial design and PE, comparing them to regulatory guidelines and expert recommendations. Three trial registration systems, ClinicalTrials.gov, the EU Clinical Trials Register, and the Japan Registry of Clinical Trials, were used and 60 trials were evaluated. The dominant clinical trial design was a randomized controlled parallel-arms trial and other details were as follows: in adult phase III confirmatory trials (n = 32), active-controlled double-blind trial (DBT) (53%) and active-controlled open-label assessor-masking trial (16%); in adult phase II dose-finding trials (n = 9), placebo- and active-controlled DBT (44%), placebo-controlled DBT (22%), and placebo-controlled add-on DBT (22%); and in pediatric phase III confirmatory trials (n = 8), active-controlled DBT (38%) and active-controlled open-label non-masking trial (25%). The most common PEs were as follows: in adult confirmatory trials, annual relapse rate (ARR) (56%) and no evidence of disease activity-3 (NEDA-3) (13%); in adult dose-finding trials, the cumulative number of T1 gadolinium-enhancing lesions (56%), combined unique active lesions (22%), and overall disability response score (22%); and in pediatric confirmatory trials, ARR (38%) and time to first relapse (25%). It was suggested that some parts of the regulatory guidelines and expert recommendations need to be revised.
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Affiliation(s)
- Katsutoshi Hiramatsu
- Department of Regulatory Science, Faculty of PharmacyMeiji Pharmaceutical UniversityTokyoJapan
| | - Hideki Maeda
- Department of Regulatory Science, Faculty of PharmacyMeiji Pharmaceutical UniversityTokyoJapan
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Mascarenas-Garcia M, Rivero-de-Aguilar A, Pérez-Ríos M, Ruano-Raviña A, Llaneza-Gonzalez MA, Candal-Pedreira C, Rey-Brandariz J, Varela-Lema L. Best practices in phase III clinical trials on DMTs for multiple sclerosis: a systematic analysis and appraisal of published trials. J Neurol Neurosurg Psychiatry 2024; 95:333-341. [PMID: 37541785 DOI: 10.1136/jnnp-2023-331733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/26/2023] [Indexed: 08/06/2023]
Abstract
BACKGROUND Great advances have been made in the field of multiple sclerosis (MS) therapy due to the publication of numerous randomised clinical trials (RCTs). In this study, we carried out a critical appraisal of phase III RCTs of disease-modifying therapies (DMTs) for MS published after 2010, intending to identify critical areas of improvement. METHODS We performed a systematic search of published RCTs on MS from January 2010 until December 2021. RCTs were assessed using an ad-hoc tool. This tool was developed based on existing generic methodological instruments and MS-specific guidelines and methodological papers. It included 14 items grouped in 5 domains: methodological quality, adequacy and measurement of outcomes, adverse event reporting, applicability and relevance of results, and transparency and conflict of interest. RESULTS We identified 31 phase III RCTs. Most of them were fully compliant in terms of sample size (87%), randomisation (68%), blinding (61%), participant selection (68%), adverse event reporting (84%) and clinical relevance (52%). Only a few were compliant in terms of participant description (6%), comparison (42%), attrition bias (26%), adequacy of outcome measures (26%), applicability (23%), transparency (36%) and conflict of interest (6%). None were compliant in terms of analysis and reporting of outcomes. The most common limitations related to the absence of comorbidity data, unjustified use of placebo, inadequacy of outcomes design and absence of protocol and/or prospective registration. CONCLUSIONS RCTs for DMTs in MS have relevant and frequent limitations. These should be addressed to enhance their quality, transparency and external validity.
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Affiliation(s)
- Marta Mascarenas-Garcia
- Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Preventive Medicine and Public Health, University Hospital Complex of Santiago de Compostela, Santiago de Compostela, Spain
| | - Alejandro Rivero-de-Aguilar
- Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Department of Neurology, University Hospital Complex of Pontevedra, Pontevedra, Spain
| | - Mónica Pérez-Ríos
- Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Health Research Institute of Santiago de Compostela (Instituto de Investigación Sanitaria de Santiago de Compostela - IDIS), Santiago de Compostela, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública/CIBERESP), Madrid, Spain
| | - Alberto Ruano-Raviña
- Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Health Research Institute of Santiago de Compostela (Instituto de Investigación Sanitaria de Santiago de Compostela - IDIS), Santiago de Compostela, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública/CIBERESP), Madrid, Spain
| | | | - Cristina Candal-Pedreira
- Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Health Research Institute of Santiago de Compostela (Instituto de Investigación Sanitaria de Santiago de Compostela - IDIS), Santiago de Compostela, Spain
| | - Julia Rey-Brandariz
- Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Leonor Varela-Lema
- Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
- Health Research Institute of Santiago de Compostela (Instituto de Investigación Sanitaria de Santiago de Compostela - IDIS), Santiago de Compostela, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBER en Epidemiología y Salud Pública/CIBERESP), Madrid, Spain
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Salter A, Lancia S, Kowalec K, Fitzgerald KC, Marrie RA. Investigating the Prevalence of Comorbidity in Multiple Sclerosis Clinical Trial Populations. Neurology 2024; 102:e209135. [PMID: 38350062 PMCID: PMC11067694 DOI: 10.1212/wnl.0000000000209135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 11/16/2023] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Comorbidity is common in multiple sclerosis (MS) with the most prevalent conditions being depression, anxiety, hypertension, and hyperlipidemia. Limited information regarding the representation of comorbidity status is available from phase III clinical trials in MS leading to concern about the potential underrepresentation of individuals with comorbidity in clinical trials. The objective was to estimate the prevalence of comorbidities in MS clinical trial populations. METHODS Individual-level data from multiple sponsors were requested for a 2-stage meta-analysis of phase III clinical trials of MS disease-modifying therapies. To ensure consistency of our approach across trials, we followed the Maelstrom retrospective harmonization guidelines. Chronic comorbidities at clinical trial enrollment recommended by the International Advisory Committee on Clinical Trials in MS were considered (depression, anxiety, hypertension, hyperlipidemia, migraine, diabetes, chronic lung disease). Additional comorbidities were also classified. Classification was based on medical history data. Individual comorbidities were summed and categorized as 0, 1, 2, or ≥3. We report the pooled prevalence (95% confidence interval [95% CI]) of comorbidity. The pooled prevalence and prevalence ratios across age, sex, race, disability level, and treatment were also reported. Heterogeneity was assessed using the I2 statistic. RESULTS Seventeen trials involving 17,926 participants were included. Fourteen trials enrolled participants with relapsing MS (RMS) while 3 enrolled participants with progressive MS (PMS). The distributions of sex, age, and disability level were generally consistent within RMS and PMS trials. When pooled, almost half of trial participants (46.5%) had ≥1 comorbidity (1: 25.0%, 95% CI 23.0-27.0, I2 = 89.9; 2: 11.4% [9.3-14.0], I2 = 96.3; ≥3: 6.0% [4.2-8.4], I2 = 97.7). Depression (16.45% [12.96-20.88], I2 = 98.3) was the most prevalent comorbidity reported, followed by hypertension (10.16% [8.61-11.98], I2 = 93.2). Heterogeneity was high across trials. Older age and female participants were associated with increased number of comorbidities. Older individuals and male participants had a higher prevalence of hyperlipidemia, while older individuals and female participants had a higher prevalence of depression and anxiety. DISCUSSION Individuals with comorbidities are included in clinical trials, although they may still be underrepresented compared with the general MS population. Given the comorbidity prevalence in the trial populations and studies suggesting an association of comorbidities with disease activity, comorbidity may influence outcomes in clinical trials.
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Affiliation(s)
- Amber Salter
- From the Department of Neurology (A.S., S.L.), Section on Statistical Planning and Analysis, UT Southwestern Medical Center, Dallas, TX; College of Pharmacy (K.K.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Samantha Lancia
- From the Department of Neurology (A.S., S.L.), Section on Statistical Planning and Analysis, UT Southwestern Medical Center, Dallas, TX; College of Pharmacy (K.K.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Kaarina Kowalec
- From the Department of Neurology (A.S., S.L.), Section on Statistical Planning and Analysis, UT Southwestern Medical Center, Dallas, TX; College of Pharmacy (K.K.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Kathryn C Fitzgerald
- From the Department of Neurology (A.S., S.L.), Section on Statistical Planning and Analysis, UT Southwestern Medical Center, Dallas, TX; College of Pharmacy (K.K.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Ruth Ann Marrie
- From the Department of Neurology (A.S., S.L.), Section on Statistical Planning and Analysis, UT Southwestern Medical Center, Dallas, TX; College of Pharmacy (K.K.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
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Ng HS, Zhu F, Zhao Y, Yao S, Lu X, Ekuma O, Evans C, Fisk JD, Marrie RA, Tremlett H. Adverse Events Associated With Disease-Modifying Drugs for Multiple Sclerosis: A Multiregional Population-Based Study. Neurology 2024; 102:e208006. [PMID: 38181306 PMCID: PMC11097763 DOI: 10.1212/wnl.0000000000208006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 09/27/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND AND OBJECTIVES It is not possible to fully establish the safety of a disease-modifying drug (DMD) for multiple sclerosis (MS) from randomized controlled trials as only very common adverse events occurring over the short-term can be captured, and the quality of reporting has been variable. We examined the relationship between the DMDs for MS and potential adverse events in a multiregion population-based study. METHODS We identified people with MS using linked administrative health data from 4 Canadian provinces. MS cases were followed from the most recent of first MS or related demyelinating disease event on January 1, 1996, until the earliest of emigration, death, or December 31, 2017. DMD exposure primarily comprised β-interferon, glatiramer acetate, natalizumab, fingolimod, dimethyl fumarate, teriflunomide, and alemtuzumab. We examined associations between DMD exposure and infection-related hospitalizations and physician visits using recurrent events proportional means models and between DMD exposure and 15 broad categories of incident adverse events using stratified multivariate Cox proportional hazard models. RESULTS We identified 35,894 people with MS. While virtually all DMDs were associated with a 42%-61% lower risk of infection-related hospitalizations, there was a modest increase in infection-related physician visits by 10%-33% for select DMDs. For incident adverse events, most elevated risks involved a second-generation DMD, with alemtuzumab's hazard of thyroid disorders being 19.42 (95% CI 9.29-36.51), hypertension 4.96 (95% CI 1.78-13.84), and cardiovascular disease 3.72 (95% CI 2.12-6.53). Natalizumab's highest risk was for cardiovascular disease (adjusted hazard ratio [aHR] 1.61; 95% CI 1.24-2.10). For the oral DMDs, fingolimod was associated with higher hazards of cerebrovascular (aHR 2.04; 95% CI 1.27-3.30) and ischemic heart diseases (aHR 1.64; 95% CI 1.10-2.44) and hypertension (aHR 1.73; 95% CI 1.30-2.31); teriflunomide with higher hazards of thyroid disorders (aHR 2.30; 95% CI 1.11-4.74), chronic liver disease (aHR 1.94; 95% CI 1.19-3.18), hypertension (aHR 1.76; 95% CI 1.32-2.37), and hyperlipidemia (aHR 1.61; 95% CI 1.07-2.44); and from complementary analyses (in 1 province), dimethyl fumarate with acute liver injury (aHR 6.55; 95% CI 1.96-21.87). DISCUSSION Our study provides an extensive safety profile of several different DMDs used to treat MS in the real-world setting. Our findings not only complement those observed in short-term clinical trials but also provide new insights that help inform the risk-benefit profile of the DMDs used to treat MS in clinical practice. The results of this study highlight the continued need for long-term, independent safety studies of the DMDs used to treat MS. CLASSIFICATION OF EVIDENCE This study provides Class III evidence that for patients with MS, while DMD exposure reduces the risk of infection-related hospitalizations, there are increased risks of infection-related physician visits and incident adverse events for select DMDs.
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Affiliation(s)
- Huah Shin Ng
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Feng Zhu
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Yinshan Zhao
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Shenzhen Yao
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Xinya Lu
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Okechukwu Ekuma
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Charity Evans
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - John D Fisk
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Ruth Ann Marrie
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Helen Tremlett
- From the Division of Neurology (H.S.N., F.Z., Y.Z., H.T.), Department of Medicine and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada; Flinders Health and Medical Research Institute (H.S.N.), College of Medicine and Public Health, Flinders University, Adelaide, Australia; SA Pharmacy (H.S.N.), Northern and Southern Adelaide Local Health Networks, Australia; College of Pharmacy and Nutrition (S.Y., C.E.), University of Saskatchewan; Saskatchewan Health Quality Council (S.Y., X.L.), Saskatoon; Department of Community Health Sciences (O.E.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg; Nova Scotia Health and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine (J.D.F.), Dalhousie University, Halifax; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
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Graf J, Ng HS, Zhu F, Zhao Y, Wijnands JMA, Evans C, Fisk JD, Marrie RA, Tremlett H. Disease-modifying drugs, multiple sclerosis and infection-related healthcare use in British Columbia, Canada: a population-based study. LANCET REGIONAL HEALTH. AMERICAS 2024; 29:100667. [PMID: 38269206 PMCID: PMC10806332 DOI: 10.1016/j.lana.2023.100667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/26/2024]
Abstract
Background Much remains unknown surrounding the disease-modifying drugs (DMDs) used to treat multiple sclerosis and infection-related healthcare use in the 'real-world' setting. We examined if DMD exposure was associated with altered infection-related healthcare use. Methods We assessed if DMD (versus no) exposure was associated with altered infection-related hospitalizations, physician claims, and prescriptions filled in British Columbia, Canada (1996-2017). Healthcare use was assessed using negative binomial and proportional means regression models, reported as sex-/age-/comorbidity-/calendar year-/socioeconomic-adjusted rate and hazard ratios [aRR, aHR], with 95% confidence intervals [CIs]). Findings We identified 19,360 multiple sclerosis cases (13,940/19,360; 72.0% women; mean age at study start = 44.5 standard deviation, SD = 13.3; mean follow-up = 11.7 [SD = 7.3] years). Relative to unexposed periods, exposure to any DMD was associated with a lower infection-related rate of physician claims (aRR = 0.88; 95% CI:0.85-0.92) and hazard of hospitalization (aHR = 0.64; 95% CI:0.56-0.73), and a higher rate of infection-related prescriptions (aRR = 1.14; 95% CI:1.08-1.20). Exposure to any injectable or oral DMD was associated with a lower infection-related rate of physician claims (injectable aRR = 0.88; 95% CI:0.84-0.92, oral aRR = 0.83; 95% CI:0.77-0.90) and hazard of hospitalization (injectable aHR = 0.65; 95% CI:0.56-0.75, oral aHR = 0.54; 95% CI:0.38-0.77), whereas intravenous DMD exposure was not (aRR = 0.99; 95% CI:0.86-1.14, aHR = 0.73; 95% CI:0.49-1.09). Exposure to any injectable or intravenous DMD was associated with a higher rate of infection-related prescriptions (injectable aRR = 1.15; 95% CI:1.08-1.22, intravenous = 1.34; 95% CI:1.15-1.56), whereas oral DMDs were not (aRR = 0.98; 95% CI:0.91-1.05). Interpretation DMD exposure for the treatment of MS was associated with differences in infection-related healthcare use. While infection-related hospitalizations and physician visits were lower, prescription fills were higher. How these differences in infection-related healthcare use affect outcomes in persons with multiple sclerosis warrants consideration. Funding Canadian Institutes of Health Research (CIHR); German Research Foundation (DFG).
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Affiliation(s)
- Jonas Graf
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Huah Shin Ng
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia
| | - Feng Zhu
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Yinshan Zhao
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - José MA. Wijnands
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Charity Evans
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - John D. Fisk
- Nova Scotia Health Authority and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine, Dalhousie University, Halifax, NS, Canada
| | - Ruth Ann Marrie
- Departments of Internal Medicine and Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Helen Tremlett
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
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Marriott JJ, Ekuma O, Fransoo R, Marrie RA. Switching to second line MS disease-modifying therapies is associated with decreased relapse rate. Front Neurol 2023; 14:1243589. [PMID: 37745666 PMCID: PMC10511745 DOI: 10.3389/fneur.2023.1243589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/25/2023] [Indexed: 09/26/2023] Open
Abstract
Background and objectives While randomized, controlled trials (RCTs) are the gold standard for determining treatment efficacy, they do not capture the effectiveness of treatment during real-world use. We aimed to evaluate the association between demographics and multiple sclerosis (MS) disease-modifying therapy (DMT) exposure, including treatment adherence and switches between different DMTs, on the risk of subsequent MS relapse. Methods All persons with relapsing-onset MS (pwRMS) living in Manitoba between 1999 and 2014 were identified from provincial healthcare databases using a validated case definition. Use of DMTs was abstracted from the provincial drug database covering all residents of Manitoba, including use of any DMT, stopping/starting any DMT, switches between different DMTs and adherence as defined by cumulative medication possession ratios (CUMMPRs) of 50, 70, 80 and 90%. Time to first-treated relapse was used as the outcome of interest in logistic regression and Cox-proportional hazards regression models adjusting for demographic covariates including age and year of diagnosis, sex, socioeconomic status and number of medical comorbidities. Results 1780 pwRMS were identified, including 1,510 who were on DMT at some point in the study period. While total DMT exposure was not associated with the time to subsequent treated relapse, individuals who switched between more than 2 DMTs had higher post-switch rates of relapse. Switching to second-line DMTs was associated with a longer time to treated relapse in comparison to those who remained on a first-line DMT (HR 0.44; 95%CI: 0.32-0.62, p < 0.0001). Discussion Switching to high-efficacy DMTs reduces the rates of subsequent MS relapse at the population level.
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Affiliation(s)
- James John Marriott
- Division of Neurology, Department of Medicine, St. Michael’s Hospital, University of Toronto, Toronto, ON, Canada
| | - Okechukwu Ekuma
- Manitoba Centre for Health Policy, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Randall Fransoo
- Department of Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Ruth Ann Marrie
- Department of Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
- Section of Neurology, Department of Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
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Marrie RA, Chataway J, Bierer BE, Finlayson M, Martinez-Lapiscina EH, Panagoulias J, Sormani MP, Williams MJ, Amezcua L. Enhancing diversity of clinical trial populations in multiple sclerosis. Mult Scler 2023; 29:1174-1185. [PMID: 37555490 PMCID: PMC10413791 DOI: 10.1177/13524585231189677] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/19/2023] [Accepted: 05/02/2023] [Indexed: 08/10/2023]
Abstract
BACKGROUND Demographic characteristics, social determinants of health (SDoH), health inequities, and health disparities substantially influence the general and disease-specific health outcomes of people with multiple sclerosis (MS). Participants in clinical trials do not represent all people with MS treated in practice. OBJECTIVE To provide recommendations for enhancing diversity and inclusion in clinical trials in MS. METHODS We held an international workshop under the Auspices of the International Advisory Committee on Clinical Trials in MS (the "Committee") to develop recommendations regarding diversity and inclusivity of participants of clinical trials in MS. Workshop attendees included members of the Committee as well as external participants. External participants were selected based on expertise in trials, SDoH, health equity and regulatory science, and diversity with respect to gender, race, ethnicity, and geography. RESULTS Recommendations include use of diversity plans, community engagement and education, cultural competency training, biologically justified rather than templated eligibility criteria, adaptive designs that allow broadening of eligibility criteria over the course of a trial, and logistical and practical adjustments to reduce study participant burden. Investigators should report demographic and SDoH characteristics of participants. CONCLUSION These recommendations provide sponsors and investigators with methods of improving diversity and inclusivity of clinical trial populations in MS.
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Affiliation(s)
- Ruth Ann Marrie
- Departments of Internal Medicine and Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Jeremy Chataway
- Queen Square Multiple Sclerosis Centre, Department of Neuroinflammation, UCL Queen Square Institute of Neurology, Faculty of Brain Sciences, University College London, London, UK/National Institute for Health Research, University College London Hospitals, Biomedical Research Centre, London, UK/Medical Research Council Clinical Trials Unit at UCL, Institute of Clinical Trials and Methodology, University College London, London, UK
| | - Barbara E Bierer
- The Multi-Regional Clinical Trials Center of Brigham and Women’s Hospital and Harvard, Cambridge, MA, USA/Harvard Medical School, Boston, MA, USA
| | - Marcia Finlayson
- School of Rehabilitation Therapy, Faculty of Health Sciences, Queen’s University, Kingston, ON, Canada
| | - Elena H Martinez-Lapiscina
- Center of Neuroimmunology, Laboratory of Advanced Imaging in Neuroimmunological Diseases, Hospital Clinic Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain/Office of Therapies for Neurological and Psychiatric Disorders, Human Medicines Division, European Medicines Agency, Amsterdam, The Netherlands
| | | | | | | | - Lilyana Amezcua
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Bakirtzis C, Nikolaidis I, Boziki MK, Grigoriadou E, Karakasi MV, Moysiadis T, Kesidou E, Papazisis G, Grigoriadis N. Epidemiological Insights on Medication Concurrency and Polypharmacy in People With Multiple Sclerosis in Greece. Int J MS Care 2023; 25:140-144. [PMID: 37469336 PMCID: PMC10353693 DOI: 10.7224/1537-2073.2022-046] [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: 07/21/2023]
Abstract
BACKGROUND Besides disease-modifying therapies, various pharmacologic agents are frequently prescribed to people with multiple sclerosis (MS) for symptom treatment and for comorbid conditions. The present study aims to investigate the types and frequencies of agents prescribed to people with MS in Greece using records from the nationwide digital prescription database. METHODS Prescription records for 21,218 people (65.9% women) with MS were included in the study. The criterion for study inclusion was a minimum of 3 months of continuous prescription of an agent. Identified treatments were further examined by age group. RESULTS Antispasticity agents (17.5%) and fampridine (14.5%) were the most regularly prescribed symptomatic medications. Antihypertensives (21.1%) and drugs for affective disorders, including antidepressants (36.1%) and anxiolytics (16.2%), were the most frequently prescribed medications for comorbid conditions. Antidepressants were prescribed at almost equally high rates among individuals older than 40 years. Hypertension was one of the leading comorbidities among the study sample, with rates rising significantly after age 40 years and plateauing after age 60 years. Polypharmacy was observed in 22.5% of the study sample, with a higher incidence among people with MS older than 60 years (46.98%). CONCLUSIONS Agents prescribed for the treatment of disease symptoms and other medical conditions are expected to positively affect quality of life in people with MS. However, polypharmacy seems to be particularly high, especially in the aged population. The potential implications of polypharmacy in the disease course should further be explored.
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Affiliation(s)
- Christos Bakirtzis
- From the Multiple Sclerosis Center, 2nd Department of Neurology (CB, IN, M-KB, EG, EK, NG), Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Nikolaidis
- From the Multiple Sclerosis Center, 2nd Department of Neurology (CB, IN, M-KB, EG, EK, NG), Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Marina-Kleopatra Boziki
- From the Multiple Sclerosis Center, 2nd Department of Neurology (CB, IN, M-KB, EG, EK, NG), Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni Grigoriadou
- From the Multiple Sclerosis Center, 2nd Department of Neurology (CB, IN, M-KB, EG, EK, NG), Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Maria-Valeria Karakasi
- C' Department of Psychiatry (M-VK), Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theodoros Moysiadis
- The Department of Computer Science, School of Sciences and Engineering, University of Nicosia, Nicosia, Cyprus (TM)
| | - Evangelia Kesidou
- From the Multiple Sclerosis Center, 2nd Department of Neurology (CB, IN, M-KB, EG, EK, NG), Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Papazisis
- Department of Clinical Pharmacology (GP), Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikolaos Grigoriadis
- From the Multiple Sclerosis Center, 2nd Department of Neurology (CB, IN, M-KB, EG, EK, NG), Aristotle University of Thessaloniki, Thessaloniki, Greece
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Stastna D, Drahota J, Lauer M, Mazouchova A, Menkyova I, Adamkova J, Ampapa R, Dufek M, Grunermelova M, Hradilek P, Kubala Havrdova E, Mares J, Martinkova A, Pavelek Z, Peterka M, Recmanova E, Rockova P, Stetkarova I, Stourac P, Vachova M, Horakova D. The Czech National MS Registry (ReMuS): Data trends in multiple sclerosis patients whose first disease-modifying therapies were initiated from 2013 to 2021. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2023. [PMID: 37114703 DOI: 10.5507/bp.2023.015] [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: 04/29/2023] Open
Abstract
AIMS Multiple sclerosis treatment strategies are changing in the Czech Republic. According to data from 2013-2021, the proportion of patients starting high-efficacy disease-modifying therapies is increasing. In this survey, we describe the actual data trends in multiple sclerosis (MS) patients beginning their first disease‑modifying therapies (DMTs) from 2013 to 2021. The secondary objective was to present the history, data collection, and scientific potential of the Czech National MS registry (ReMuS). METHODS First, using descriptive statistics, we analysed the data for patients starting their first DMTs, either platform (including dimethyl fumarate) or high-efficacy DMTs (HE-DMTs), for each successive year. Second, a detailed description of the history, data collection, completeness, quality optimising procedures, and legal policies of ReMuS is provided. RESULTS Based on the dataset from December 31, 2021, the total number of monitored patients with MS in ReMuS increased from 9,019 in 2013 (referred from 7 of 15 MS centres) to 12,940 in 2016 (referred from all 15 Czech MS centres) to 17,478 in 2021. In these years, the percentage of patients treated with DMTs in the registry ranged from 76 to 83%, but the proportion of patients treated with HE-DMTs changed from 16.2% in 2013 to 37.1% in 2021. During the follow-up period, a total of 8,491 treatment-naive patients received DMTs. The proportion of patients (all MS phenotypes) starting HE-DMTs increased from 2.1% in 2013 to 18.5% in 2021. CONCLUSION Patient registries, including ReMuS, provide an essential quality data source, especially in light of the increasing percentage of patients on HE-DMTs. Although early initiation of HE-DMT can provide considerable benefits, it also carries greater potential risks. Consistent long-term follow-up of patients in real‑world clinical practice, which only registries allow, is therefore crucial to evaluate the efficacy and safety of therapeutic strategies, for epidemiological research and to assist decision making by healthcare providers and regulatory bodies.
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Affiliation(s)
- Dominika Stastna
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic
| | - Jiri Drahota
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic
- Endowment Fund IMPULS, Prague, Czech Republic
| | - Michal Lauer
- Endowment Fund IMPULS, Prague, Czech Republic
- Department of Economic Statistics, Prague University of Economics and Business, Prague, Czech Republic
| | - Aneta Mazouchova
- Endowment Fund IMPULS, Prague, Czech Republic
- Department of Economic Statistics, Prague University of Economics and Business, Prague, Czech Republic
| | - Ingrid Menkyova
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic
- 2nd Department of Neurology, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic
| | - Jana Adamkova
- Department of Neurology, Hospital Ceske Budejovice, Ceske Budejovice, Czech Republic
| | - Radek Ampapa
- Department of Neurology, Hospital of Jihlava, Jihlava, Czech Republic
| | - Michal Dufek
- First Department of Neurology, Masaryk University, St. Anne's University Hospital, Brno, Czech Republic
| | | | - Pavel Hradilek
- Department of Neurology, University Hospital Ostrava, Ostrava, Czech Republic
| | - Eva Kubala Havrdova
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic
| | - Jan Mares
- Department of Neurology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Alena Martinkova
- Department of Neurology, Hospitals of the Pardubice Region, Hospital of Pardubice, Pardubice, Czech Republic
| | - Zbysek Pavelek
- Department of Neurology, Charles University in Prague, Faculty of Medicine and University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Marek Peterka
- Department of Neurology, Charles University in Prague, Faculty of Medicine and University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Neurology, Charles University in Prague, Faculty of Medicine in Pilsen and University Hospital Pilsen, Pilsen, Czech Republic
| | - Eva Recmanova
- Department of Neurology, Tomas Bata Regional Hospital, Zlin, Czech Republic
| | - Petra Rockova
- Department of Neurology, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Ivana Stetkarova
- Charles University in Prague, Third Faculty of Medicine, Charles University and Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Pavel Stourac
- Department of Neurology, University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Marta Vachova
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic
- Department of Neurology, KZ a.s., Hospital Teplice, Teplice, Czech Republic
| | - Dana Horakova
- Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic
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10
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Kesidou E, Theotokis P, Damianidou O, Boziki M, Konstantinidou N, Taloumtzis C, Sintila SA, Grigoriadis P, Evangelopoulos ME, Bakirtzis C, Simeonidou C. CNS Ageing in Health and Neurodegenerative Disorders. J Clin Med 2023; 12:2255. [PMID: 36983254 PMCID: PMC10054919 DOI: 10.3390/jcm12062255] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/02/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
The process of ageing is characteristic of multicellular organisms associated with late stages of the lifecycle and is manifested through a plethora of phenotypes. Its underlying mechanisms are correlated with age-dependent diseases, especially neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease (PD) and multiple sclerosis (MS) that are accompanied by social and financial difficulties for patients. Over time, people not only become more prone to neurodegeneration but they also lose the ability to trigger pivotal restorative mechanisms. In this review, we attempt to present the already known molecular and cellular hallmarks that characterize ageing in association with their impact on the central nervous system (CNS)'s structure and function intensifying possible preexisting pathogenetic conditions. A thorough and elucidative study of the underlying mechanisms of ageing will be able to contribute further to the development of new therapeutic interventions to effectively treat age-dependent manifestations of neurodegenerative diseases.
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Affiliation(s)
- Evangelia Kesidou
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
- Laboratory of Physiology, Faculty of Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - Paschalis Theotokis
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
| | - Olympia Damianidou
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
| | - Marina Boziki
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
| | - Natalia Konstantinidou
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
| | - Charilaos Taloumtzis
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
| | - Styliani-Aggeliki Sintila
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
| | - Panagiotis Grigoriadis
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
| | | | - Christos Bakirtzis
- Laboratory of Experimental Neurology and Neuroimmunology, 2nd Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, 546 36 Thessaloniki, Greece (P.T.)
| | - Constantina Simeonidou
- Laboratory of Physiology, Faculty of Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
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11
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Linden R, Vassilaki M, Henderson EJ, Mohan D. Editorial: Multimorbidity in the context of neurodegenerative disorders. Front Neurosci 2022; 16:1076486. [DOI: 10.3389/fnins.2022.1076486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/03/2022] [Indexed: 11/23/2022] Open
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12
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Nociti V, Romozzi M. Multiple Sclerosis and Autoimmune Comorbidities. J Pers Med 2022; 12:jpm12111828. [PMID: 36579555 PMCID: PMC9698878 DOI: 10.3390/jpm12111828] [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: 10/01/2022] [Revised: 10/17/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory and neurodegenerative disease of the central nervous system characterized by broad inter- and intraindividual heterogeneity and different prognoses. Multisystem comorbidities are frequent features in people with MS (PwMS) and can affect treatment choices, quality of life, disability and mortality. In this scenario, autoimmune comorbidities play a cardinal role for several reasons, such as the implication on MS pathogenesis, diagnostic delay, disease activity, disability progression, brain atrophy, and treatment choice. However, the impact of an autoimmune comorbid condition on MS is not fully elucidated. This review aims to summarize the currently available data on the incidence and prevalence of autoimmune diseases in PwMS, the possible effect of this association on clinical and neuroradiological MS course and its impact on treatment choice.
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Affiliation(s)
- Viviana Nociti
- Centro Sclerosi Multipla, Fondazione Policlinico Universitario ‘Agostino Gemelli’ IRCCS, 00168 Rome, Italy
- Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Correspondence:
| | - Marina Romozzi
- Centro Sclerosi Multipla, Fondazione Policlinico Universitario ‘Agostino Gemelli’ IRCCS, 00168 Rome, Italy
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Allison K, Patel D, Kaur R. Assessing Multiple Factors Affecting Minority Participation in Clinical Trials: Development of the Clinical Trials Participation Barriers Survey. Cureus 2022; 14:e24424. [PMID: 35637812 PMCID: PMC9127181 DOI: 10.7759/cureus.24424] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2022] [Indexed: 11/21/2022] Open
Abstract
The purpose of this review is to analyze factors that influence individuals' decisions to participate in clinical trials focusing on racial and ethnic disparities that exist in clinical trials. These factors are then used to develop a survey that may be used in a clinical setting to further understand specific factors affecting participation. A comprehensive search of electronic databases was carried out for publications from 2010 to 2021 using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. After reviewing the data, the predominant factors that were encountered in the search were then commented upon and reviewed to create an evidence-based questionnaire. Using the comprehensive search, factors that affect clinical trial participation were identified. These factors were then used to create a comprehensive, evidence-based questionnaire to be implemented in a clinical setting to conduct and analyze the factors impacting participation in clinical trials. Understanding the factors that primarily impact an individual's decisions to participate or not participate in a clinical trial allow researchers to implement changes to decrease the hesitancy regarding participation.
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14
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Do we need more clinical trials in secondary progressive MS? Mult Scler Relat Disord 2022; 60:103790. [DOI: 10.1016/j.msard.2022.103790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Aspectos del estilo de vida en personas con esclerosis múltiple antes y durante la pandemia COVID-19: resultado de una encuesta en Argentina. NEUROLOGÍA ARGENTINA 2022. [PMCID: PMC8603073 DOI: 10.1016/j.neuarg.2021.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Introducción Un estilo de vida poco saludable tendría influencia negativa en la evolución de la esclerosis múltiple (EM). La pandemia de COVID-19 ha producido cambios que podrían haber modificado el mismo. Los objetivos fueron evaluar aspectos del estilo de vida de personas con EM (pcEM) integrantes de una asociación de pacientes de Argentina, previo y durante la pandemia, las causas de este y si recibieron consejos médicos sobre el tema. Sujetos y métodos Estudio observacional, las pcEM fueron convocadas a través de una asociación de pacientes para responder encuestas on line en noviembre de 2019 y octubre de 2020. Se recolectaron datos demográficos, de la enfermedad, talla, peso, tabaquismo, alimentación, actividad física, consumo de alcohol y sobre la atención médica. Resultados 208 pcEM. Mujeres: 76,4%. 43,76 años (± 10,7). Cumple con la actividad física recomendada el 40,4%, 5 porciones de frutas y verduras diarias el 13,9%, tabaquismo el 24,5%, consumo de alcohol de riesgo el 12,5%, sobrepeso + obesidad el 53,4%. En pandemia disminuyó el tabaquismo (24,9% vs 20%; p = 0,004), aumentó el peso (BMI = 26,1 vs 27,4; p = 0,001) y disminuyó la actividad física (39,3% vs 31,5%; p = 0,016). Recibieron regularmente consejos sobre ejercicio físico el 54,3%, sobre dieta saludable el 32,4% y sobre cesación tabáquica el 33,3%. Conclusiones Un importante porcentaje de las pcEM presentan aspectos del estilo de vida no saludables. En pandemia se observó: aumento de peso, aumento del sedentarismo y disminución del tabaquismo. No se realizaron frecuentemente los consejos sobre estilo de vida. Son necesarios nuevos estudios para evaluar cómo mejorar el estilo de vida y su implicancia en la evolución y la calidad de vida.
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Marrie RA, Cutter GR, Fox RJ, Vollmer T, Tyry T, Salter A. NARCOMS and Other Registries in Multiple Sclerosis: Issues and Insights. Int J MS Care 2021; 23:276-284. [PMID: 35035299 PMCID: PMC8745235 DOI: 10.7224/1537-2073.2020-133] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Observational studies and registries can play a critical role in elucidating the natural and treated history of multiple sclerosis (MS) and identifying factors associated with outcomes such as disability and health-related quality of life. The North American Research Committee on Multiple Sclerosis (NARCOMS) Registry is one of multiple registries worldwide that focuses on people with MS, but one of the very few patient-driven MS registries. On the 25th anniversary of the first data collection for the NARCOMS Registry, we discuss the importance of disease registries in the MS field, describe key concepts related to registry design and management, and highlight findings from MS registries relevant to clinical care or health policy.
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Affiliation(s)
- Ruth Ann Marrie
- From the Department of Internal Medicine and Department of Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada (RAM)
| | - Gary R. Cutter
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, USA (GRC)
| | - Robert J. Fox
- Mellen Center for Multiple Sclerosis, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA (RJF)
| | - Timothy Vollmer
- Department of Neurology, Rocky Mountain Multiple Sclerosis Center at Anschutz Medical Campus, University of Colorado Denver, Denver, CO, USA (TV)
| | | | - Amber Salter
- Division of Biostatistics, Washington University in St Louis, St Louis, MO, USA (AS [now at UT Southwestern Medical Center])
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Parks NE, Andreou P, Marrie RA, Fisk JD, Bhan V, Kirkland SA. Comorbidity and persistence of disease-modifying therapy use in relapsing remitting multiple sclerosis. Mult Scler Relat Disord 2021; 56:103249. [PMID: 34517192 DOI: 10.1016/j.msard.2021.103249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 07/29/2021] [Accepted: 09/01/2021] [Indexed: 01/21/2023]
Abstract
BACKGROUND Comorbidity decreases the likelihood of initiating disease-modifying therapy (DMT) for multiple sclerosis (MS). Our objective was to characterize the relationship between comorbidity and initial DMT persistence along with reasons for DMT discontinuation. METHODS We identified individuals with relapsing remitting MS or clinically isolated syndrome starting a platform DMT (interferon-β, glatiramer acetate, dimethyl fumarate, teriflunomide) as initial therapy in the Canadian province of Nova Scotia from 2001 to 2016. Cases were identified using a clinic database for the only clinic providing specialty MS care in a province with universal publicly-funded health care. Comorbidity was determined by linkage of MS cases to provincial health administrative data using validated case definitions for mental health disorder, hypertension, hyperlipidemia, diabetes, chronic lung disease, ischemic heart disease, epilepsy, and inflammatory bowel disease. Cox proportional hazards models explored the relationship between comorbidity, as a count or individual comorbidities, and time to discontinuation of initial DMT. Logistic regression models explored reasons for DMT discontinuation. RESULTS Among 1464 individuals starting platform therapy as initial DMT, the median duration on first DMT was 4 years (95% CI 4 - 4). Comorbidity count (0, 1, ≥2) was not associated with time to discontinuation of initial DMT. However, the presence of a mental health disorder was associated with an increased hazard of discontinuing DMT (hazard ratio 1.22, 95% CI 1.03-1.44). Comorbidity count was not associated with discontinuation for lack of efficacy or lack of tolerability after adjusting for covariates. CONCLUSION Individuals with mental health comorbidity may have unique challenges that affect persistence on DMT after treatment initiation.
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Affiliation(s)
- Natalie E Parks
- Division of Neurology, Halifax Infirmary, Dalhousie University, 1796 Summer St, Room 3832, Halifax, NS B3H 3A7, Canada; Department of Community Health and Epidemiology, Dalhousie University, 5790 University Ave, Halifax, NS B3H 1V7, Canada.
| | - Pantelis Andreou
- Department of Community Health and Epidemiology, Dalhousie University, 5790 University Ave, Halifax, NS B3H 1V7, Canada
| | - Ruth Ann Marrie
- Department of Internal Medicine and Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, Health Sciences Centre, University of Manitoba, GF 543-820 Sherbrook St, Winnipeg, MB R3A 1R9, Canada
| | - John D Fisk
- Nova Scotia Health Authority and the Departments of Psychiatry, Psychology and Neuroscience and Medicine, Dalhousie University, 5909 Veterans' Memorial Lane, Halifax, NS B3H 2E2, Canada
| | - Virender Bhan
- Division of Neurology, University of British Columbia, 3935 Kincaid St, Burnaby, BC V5G 2J6, Canada
| | - Susan A Kirkland
- Department of Community Health and Epidemiology, Dalhousie University, 5790 University Ave, Halifax, NS B3H 1V7, Canada
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Kingwell E, Zhang T, Zhu F, Walld R, Carruthers R, Evans C, Marrie RA, Tremlett H. Short-term laboratory and related safety outcomes for the multiple sclerosis oral disease-modifying therapies: an observational study. Expert Opin Drug Saf 2021; 20:481-487. [PMID: 33342303 DOI: 10.1080/14740338.2021.1867536] [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: 10/22/2022]
Abstract
BACKGROUND Real-world safety data for the oral multiple sclerosis (MS) disease-modifying therapies (DMTs), dimethyl fumarate (DMF), fingolimod, and teriflunomide are important. We examined laboratory test abnormalities and adverse health conditions in new users. METHODS Linked laboratory and administrative health data were accessed for all persons with MS (PwMS) filling their first oral DMT prescription in two Canadian provinces. PwMS were followed from first prescription fill until discontinuation, death, emigration or study end. Proportions of PwMS, and incidence rates (IR)/100 person-years, were calculated for ≥1 event of elevated alanine aminotransferase (ALT) (>the upper limit of normal [ULN]; all DMTs), liver toxicity (ALT>3xULN; fingolimod); lymphopenia and proteinuria (DMF), and cardiac arrhythmia, hypertension and pneumonia (all DMTs). RESULTS Overall, 1,140 PwMS were followed for up to 2 years. De novo elevated alanine aminotransferase affected 13.2% (DMF), 12.4% (teriflunomide), and 30.0% (fingolimod) of users. Liver toxicity affected 2.8% of fingolimod, lymphopenia 3.1% of DMF, and proteinuria 2.9% of DMF users. The incidences of cardiac arrhythmia, pneumonia and hypertension ranged from <1 to 1.86/100 person-years depending on the DMT. CONCLUSIONS The short-term, real-world incidences of abnormal laboratory results or adverse events were consistent with the pivotal clinical trial findings. Longer-term safety data are still needed.
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Affiliation(s)
- Elaine Kingwell
- Department of Medicine, Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada.,Research Department of Primary Care & Population Health, University College London, London, UK
| | - Tingting Zhang
- Department of Health Services, Policy & Practice, Brown University School of Public Health, Providence, Rhode Island, United States
| | - Feng Zhu
- Department of Medicine, Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada
| | - Randy Walld
- Manitoba Centre for Health Policy, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada
| | - Robert Carruthers
- Department of Medicine, Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada
| | - Charity Evans
- College of Pharmacy & Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Ruth Ann Marrie
- Departments of Internal Medicine and Community Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Helen Tremlett
- Department of Medicine, Division of Neurology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada
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19
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Kleykamp BA, Ferguson MC, McNicol E, Bixho I, Arnold LM, Edwards RR, Fillingim R, Grol-Prokopczyk H, Turk DC, Dworkin RH. The Prevalence of Psychiatric and Chronic Pain Comorbidities in Fibromyalgia: an ACTTION systematic review. Semin Arthritis Rheum 2020; 51:166-174. [PMID: 33383293 DOI: 10.1016/j.semarthrit.2020.10.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/21/2020] [Accepted: 10/16/2020] [Indexed: 02/07/2023]
Abstract
Fibromyalgia (FM) is a chronic widespread pain condition that overlaps with multiple comorbid health conditions and contributes to considerable patient distress. The aim of this review was to provide a systematic overview of psychiatric and chronic pain comorbidities among patients diagnosed with FM and to inform the development of recommendations for the design of clinical trials. Thirty-one, cross-sectional, clinical epidemiology studies that evaluated patients diagnosed with FM were included for review. None of the reviewed studies reported on the incidence of these comorbidities. Sample size-weighted prevalence estimates were calculated when prevalence data were reported in 2 or more studies for the same comorbid condition. The most prevalent comorbidity across all studies reviewed was depression/major depressive disorder (MDD) with over half of the patients included having this diagnosis in their lifetime (weighted prevalence up to 63%). In addition, nearly one-third of FM patients examined had current or lifetime bipolar disorder, panic disorder, or post-traumatic stress disorder. Less common psychiatric disorders reported included generalized anxiety disorder, obsessive compulsive disorder, and specific phobias (agoraphobia, social phobia). There were fewer studies that examined chronic pain comorbidities among FM patients, but when evaluated, prevalence was also high ranging from 39% to 76% (i.e., chronic tension-type or migraine headache, irritable bowel syndrome, myofascial pain syndrome, and temporomandibular disorders). The results of the review suggest that depression and chronic pain conditions involving head/jaw pain and IBS were elevated among FM patients compared to other conditions in the clinic-based studies. In contrast, anxiety-related disorders were much less common. Addressing the presence of these comorbid health conditions in clinical trials of treatments for FM would increase the generalizability and real-world applicability of FM research.
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Affiliation(s)
- Bethea A Kleykamp
- University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
| | - McKenzie C Ferguson
- Southern Illinois University Edwardsville, School of Pharmacy, Edwardsville, IL, USA
| | | | - Ida Bixho
- MCPHS University, Boston, MA, USA; Sanofi Genzyme, Cambridge, MA, USA
| | - Lesley M Arnold
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | | | - Roger Fillingim
- University of Florida, College of Dentistry, and Pain Research and Intervention Center of Excellence, Gainesville, FL, USA
| | | | | | - Robert H Dworkin
- University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
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20
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Ng HS, Zhu F, Kingwell E, Zhao Y, Yao S, Ekuma O, Svenson LW, Evans C, Fisk JD, Marrie RA, Tremlett H. Characteristics of a population-based multiple sclerosis cohort treated with disease-modifying drugs in a universal healthcare setting. Expert Rev Neurother 2020; 21:131-140. [PMID: 33146570 DOI: 10.1080/14737175.2021.1847085] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Background: Relatively little is known about the use of disease-modifying drugs (DMDs) for multiple sclerosis (MS) in the population-based universal healthcare setting. This study aimed to describe the characteristics of a population-based cohort with MS and their DMD exposure in four Canadian provinces. Methods: We identified all adults (aged ≥18 years) with MS using linked population-based health administrative data. Individuals were followed from the most recent of their first MS or demyelinating event or 1 January 1996(study entry), to the earliest of death, emigration, or 31 March 2018(study end). Cohort characteristics examined included sex, age, socioeconomic status, and comorbidity burden. Results: Overall, 10,418/35,894 (29%) of MS cases filled a DMD prescription during the 22-year study period. Most were women (n = 7,683/10,418;74%), and 17% (n = 1,745/10,418) had some comorbidity (Charlson Comorbidity Index≥1) at study entry. Nearly 20% (n = 1,745/10,418) were aged ≥50 when filling their first DMD; the mean age was 39.6 years. Conclusions: Almost 1 in 6 people with MS had at least some comorbidity, and nearly 1 in 6 were ≥50 years old at the time of their first DMD. As these individuals are typically excluded from clinical trials, findings illustrate the need to understand the harms and benefits of DMD use in these understudied groups.
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Affiliation(s)
- Huah Shin Ng
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia , Vancouver, BC, Canada
| | - Feng Zhu
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia , Vancouver, BC, Canada
| | - Elaine Kingwell
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia , Vancouver, BC, Canada
| | - Yinshan Zhao
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia , Vancouver, BC, Canada
| | - Shenzhen Yao
- College of Pharmacy and Nutrition, University of Saskatchewan , Saskatoon, SK, Canada.,Health Quality Council , Saskatoon, SK, Canada
| | - Okechukwu Ekuma
- Department of Community Health Sciences, Rady Faculty of Health Sciences, University of Manitoba , Winnipeg, MB, Canada
| | - Lawrence W Svenson
- Alberta Health , Edmonton, AB, Canada.,Division of Preventive Medicine & School of Public Health, University of Alberta , Edmonton, AB, Canada.,Community Health Sciences, Cumming School of Medicine, University of Calgary , Calgary, AB, Canada
| | - Charity Evans
- College of Pharmacy and Nutrition, University of Saskatchewan , Saskatoon, SK, Canada
| | - John D Fisk
- Nova Scotia Health Authority and the Departments of Psychiatry, Psychology and Neuroscience, and Medicine, Dalhousie University , Halifax, NS, Canada
| | - Ruth Ann Marrie
- Departments of Internal Medicine and Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba , Winnipeg, MB, Canada
| | - Helen Tremlett
- Department of Medicine, Division of Neurology and the Djavad Mowafaghian Centre for Brain Health, University of British Columbia , Vancouver, BC, Canada
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21
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Marrie RA, Maxwell C, Mahar A, Ekuma O, McClintock C, Seitz D, Webber C, Groome PA. Cancer Incidence and Mortality Rates in Multiple Sclerosis: A Matched Cohort Study. Neurology 2020; 96:e501-e512. [PMID: 33239364 DOI: 10.1212/wnl.0000000000011219] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE To determine whether cancer risk differs in people with and without multiple sclerosis (MS), we compared incidence rates and cancer-specific mortality rates in MS and matched cohorts using population-based data sources. METHODS We conducted a retrospective matched cohort study using population-based administrative data from Manitoba and Ontario, Canada. We applied a validated case definition to identify MS cases, then selected 5 controls without MS matched on birth year, sex, and region. We linked these cohorts to cancer registries, and estimated incidence of breast, colorectal, and 13 other cancers. For breast and colorectal cancers, we constructed Cox models adjusting for age at the index date, area-level socioeconomic status, region, birth cohort year, and comorbidity. We pooled findings across provinces using meta-analysis. RESULTS We included 53,983 MS cases and 269,915 controls. Multivariable analyses showed no difference in breast cancer risk (pooled hazard ratio [HR] 0.92 [95% confidence interval (CI) 0.78-1.09]) or colorectal cancer risk (pooled HR 0.83 [95% CI 0.64-1.07]) between the cohorts. Mortality rates for breast and colorectal did not differ between cohorts. Bladder cancer incidence and mortality rates were higher among the MS cohort. Although the incidence of prostate, uterine, and CNS cancers differed between the MS and matched cohorts, mortality rates did not. CONCLUSION The incidence of breast and colorectal cancers does not differ between persons with and without MS; however, the incidence of bladder cancer is increased. Reported differences in the incidence of some cancers in the MS population may reflect ascertainment differences rather than true differences.
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Affiliation(s)
- Ruth Ann Marrie
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada.
| | - Colleen Maxwell
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Alyson Mahar
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Okechukwu Ekuma
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Chad McClintock
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Dallas Seitz
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Colleen Webber
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
| | - Patti A Groome
- From the Department of Internal Medicine (R.A.M.), Department of Community Health Sciences (R.A.M., A.M.), and Manitoba Centre for Health Policy (A.M., O.E.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba; ICES (C. Maxwell), Toronto; Schools of Pharmacy and Public Health & Health Systems (C. Maxwell), University of Waterloo; ICES Queen's (A.M., C. McClintock, D.S., P.A.G.) and Division of Cancer Care and Epidemiology, Cancer Research Institute (P.A.G.), Queen's University, Kingston; Departments of Psychiatry and Community Health Sciences (D.S.), Cumming School of Medicine, University of Calgary; Ottawa Hospital Research Institute (C.W.); and Bruyère Research Institute (C.W.), Ottawa, Canada
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22
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Change and onset-type differences in the prevalence of comorbidities in people with multiple sclerosis. J Neurol 2020; 268:602-612. [PMID: 32880720 DOI: 10.1007/s00415-020-10194-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Little is known about the change in prevalence of comorbidities during the disease course of people with multiple sclerosis (MS) and whether the prevalences vary by MS onset type. OBJECTIVE To calculate the change in prevalence of comorbidities between symptom onset and the time of study, to compare the prevalences of comorbidities with those in the Australian population at the time of study and to examine onset-type differences. METHODS Comorbidity data from 1518 participants of the Australian MS Longitudinal Study and Australian population comparator data (2014-2015 National Health Survey) were used. The change in prevalence between time points and prevalence ratios (PR) at the time of study (crude, age and sex adjusted, and stratified by onset type) was calculated. RESULTS Comorbidities were common, and those with the largest increases in prevalence between MS symptom onset and the time of study were depression (+ 26.9%), anxiety (+ 23.1%), hypertension (+ 21.9%), elevated cholesterol (+ 16.3%), osteoarthritis (+ 17.1%), eye diseases (+ 11.6%), osteoporosis (+ 10.9%) and cancer (+ 10.3%). Compared to the general population and after age and sex adjustment, participants had a significantly higher prevalence for 14/19 comorbidities at the time of study. The associations were strongest for anaemia, cancer (both PR > 4.00), anxiety, depression, migraine (all PR > 3.00), psoriasis and epilepsy (both PR > 2.00). No significant differences were seen by onset type. CONCLUSION Comorbidities are common at MS symptom onset and increase with MS duration. Having MS may thus contribute to accrual of comorbidities. This emphasises the importance of optimal screening for and management of comorbidities in early MS and throughout the disease course.
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Magyari M, Sorensen PS. Comorbidity in Multiple Sclerosis. Front Neurol 2020; 11:851. [PMID: 32973654 PMCID: PMC7473304 DOI: 10.3389/fneur.2020.00851] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 07/07/2020] [Indexed: 01/09/2023] Open
Abstract
Comorbidities in patients with multiple sclerosis (MS) has become an area of increasing interest in the recent years. A comorbidity is defined as any additional disease that coexists in an individual with a given index disease and that is not an obvious complication of the index disease. The aim of this review is to describe the current evidence regarding the range of comorbidities in the population with MS reported in different countries and the current knowledge about the influence of comorbidities on the clinical features and therapeutic challenges in MS. Certain comorbidities are more prevalent in people with MS such as depression, anxiety, cerebro- and cardiovascular diseases, and certain autoimmune disorders such as diabetes, thyroid disease, and inflammatory bowel disease. A previous perception of a trend toward a lower overall risk of cancer in patients with MS appears to be challenged, but there is no evidence on any higher occurrence of malignancies in the population with MS. Comorbidities may modify the clinical presentation of MS, and have implications for treatment choice, adherence, and outcome. Several comorbid conditions are associated with increased disability progression, including diabetes, hypertension, and chronic obstructive pulmonary disease. Comorbidities are common in MS from the time of diagnosis and may account for some of the heterogeneity observed in MS, including diagnostic delay, clinical presentation, degree of disability progression, rate of health care utilization, working ability, employment status, and quality of life. Coexisting diseases and polypharmacy increase the complexity of patient management and poses major challenges, particularly with the increasing number of immunosuppressive disease-modifying therapies.
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Affiliation(s)
- Melinda Magyari
- Department of Neurology, Danish Multiple Sclerosis Center, Copenhagen University Hospital, Rigshospitalet, Denmark.,Department of Neurology, The Danish Multiple Sclerosis Registry, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Per Soelberg Sorensen
- Department of Neurology, Danish Multiple Sclerosis Center, Copenhagen University Hospital, Rigshospitalet, Denmark
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das Nair R, de Groot V, Freeman J. Beyond current research practice: Methodological considerations in MS rehabilitation research (is designing the perfect rehabilitation trial the Holy Grail or a Gordian knot?). Mult Scler 2020; 25:1337-1347. [PMID: 31469355 DOI: 10.1177/1352458519858271] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Rehabilitation is an essential aspect of symptomatic and supportive treatment for people with multiple sclerosis (MS). The number of randomised controlled trials (RCTs) for rehabilitation interventions in MS has increased over the last two decades. The design, conduct and reporting quality of some of these trials could be improved. There are, however, some specific challenges that researchers face in conducting RCTs of rehabilitation interventions, which are often 'complex interventions'. This paper explores some of the challenges of undertaking robust clinical trials in rehabilitation. We focus on issues related to (1) participant selection and sample size, (2) interventions - the 'dose', content, active ingredients, targeting, fidelity of delivery and treatment adherence, (3) control groups and (4) outcomes - choosing the right type, number, timing of outcomes, and the importance of defining a primary outcome and clinically important difference between groups. We believe that by following internationally accepted RCT guidelines, by developing a critical mass of MS rehabilitation 'trialists' through international collaboration and by continuing to critique, challenge, and develop RCT designs, we can exploit the potential of RCTs to answer important questions related to the effectiveness of rehabilitation interventions.
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Affiliation(s)
- Roshan das Nair
- Clinical Psychology and Neuropsychology, Institute of Mental Health, University of Nottingham, Jubilee Campus, Nottingham, UK
| | - Vincent de Groot
- Department of Rehabilitation Medicine, MS Center Amsterdam, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jennifer Freeman
- Physiotherapy and Rehabilitation, School of Health Professions, Faculty of Health and Human Sciences, University of Plymouth, Plymouth, UK
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25
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Salter A, Kowalec K, Fitzgerald KC, Cutter G, Marrie RA. Comorbidity is associated with disease activity in MS: Findings from the CombiRx trial. Neurology 2020; 95:e446-e456. [PMID: 32554770 DOI: 10.1212/wnl.0000000000010024] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/26/2020] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE To determine whether comorbidity is associated with clinical (relapses, disability worsening) and MRI outcomes in multiple sclerosis (MS) by conducting a secondary analysis of the CombiRx clinical trial. METHODS CombiRx compared interferon beta-1a, glatiramer acetate, and the combination of these agents. For participants eligible for evaluation of 6-month confirmed disability worsening, we used medical history, concomitant medications, and adverse events to ascertain comorbidity status. Comorbid conditions evaluated included hypertension, dyslipidemia, diabetes mellitus, depression, anxiety disorders, and migraine. Clinical outcomes included disease activity consisting of protocol-defined relapses, disability worsening, and MRI activity. We summarized the prevalence of these comorbid conditions and their association with disease activity and its components using multivariable Cox regression. RESULTS Of the 1,008 participants randomized, 959 (95.1%) were eligible for assessment of 6-month disability worsening; for this subgroup, the median length of follow-up was 3.4 years (range 0.5-6.9 years). Overall, 55.1% of participants had ≥1 comorbidity at enrollment. After adjustment, anxiety (hazard ratio [HR] 1.25, 95% confidence interval [CI] 1.01-1.55) and dyslipidemia (HR 1.32, 95% CI 1.01-1.72) were associated with an increased hazard of any disease activity, while migraine (HR 0.80, 95% CI 0.67-0.97) was associated with a decreased hazard. CONCLUSIONS In this large trial population with rigorously obtained outcomes, comorbid conditions were common among participants and influenced disease outcomes, including relapses. The comorbidity burden of clinical trial participants with MS may be an important factor in the outcome of clinical trials. Additional investigations of the impact of comorbidity on clinical trial outcomes and response to disease-modifying therapies are warranted.
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Affiliation(s)
- Amber Salter
- From the Department of Biostatistics (A.S.), Washington University in St. Louis, MO; College of Pharmacy (K.K.), and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Solna, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Department of Biostatistics (G.C.), University of Alabama in Birmingham School of Public Health.
| | - Kaarina Kowalec
- From the Department of Biostatistics (A.S.), Washington University in St. Louis, MO; College of Pharmacy (K.K.), and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Solna, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Department of Biostatistics (G.C.), University of Alabama in Birmingham School of Public Health
| | - Kathryn C Fitzgerald
- From the Department of Biostatistics (A.S.), Washington University in St. Louis, MO; College of Pharmacy (K.K.), and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Solna, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Department of Biostatistics (G.C.), University of Alabama in Birmingham School of Public Health
| | - Gary Cutter
- From the Department of Biostatistics (A.S.), Washington University in St. Louis, MO; College of Pharmacy (K.K.), and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Solna, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Department of Biostatistics (G.C.), University of Alabama in Birmingham School of Public Health
| | - Ruth Ann Marrie
- From the Department of Biostatistics (A.S.), Washington University in St. Louis, MO; College of Pharmacy (K.K.), and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Solna, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Department of Biostatistics (G.C.), University of Alabama in Birmingham School of Public Health
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Kapica-Topczewska K, Tarasiuk J, Chorąży M, Czarnowska A, Brola W, Szczepański M, Kochanowicz J, Kułakowska A. The epidemiology of comorbidities among multiple sclerosis patients in northeastern Poland. Mult Scler Relat Disord 2020; 41:102051. [DOI: 10.1016/j.msard.2020.102051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/09/2020] [Accepted: 03/11/2020] [Indexed: 11/30/2022]
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Plow M, Moore SM, Chang J, Bachhal E, Sparks KE. Randomized controlled trial of SystemCHANGE™ weight management intervention in neurological conditions. PATIENT EDUCATION AND COUNSELING 2020; 103:112-119. [PMID: 31530424 DOI: 10.1016/j.pec.2019.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 08/01/2019] [Accepted: 08/04/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE This randomized controlled pilot study examined the feasibility and efficacy of a SystemCHANGE™ (SC) weight management intervention in adults with either multiple sclerosis or stroke. METHODS Participants (n = 61) were randomized into two interventions: SC, which taught skills to modify personal environments, or active-control (AC), which taught health behavior guidelines. Sessions were held weekly for 12 weeks. Feasibility measures included recruitment and attrition rates. The primary outcome of body weight and secondary outcomes of emotional well-being and healthy behaviors were measured before and after the interventions. RESULTS Average recruitment rate was 3.6 participants per month. Attrition rate was 14.8%. On average, 9.1 sessions were completed for SC and 10.7 for AC. Differences in weight loss were non-significant between interventions (P = 0.182), but significantly declined across both interventions (P = 0.011). Physical activity (P = 0.002), depression (P < 0.001), anxiety (P = 0.023), and self-efficacy (P = 0.022) all significantly improved for SC compared to AC. CONCLUSIONS SC was feasible to implement and efficacious in improving secondary outcomes of emotional well-being and healthy behaviors, but was not efficacious in improving the primary outcome of weight loss. More research is needed to optimize SC. PRACTICE IMPLICATIONS SC might be an alternative approach to cognitive-behavioral therapy for promoting emotional well-being and healthy behaviors.
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Affiliation(s)
- Matthew Plow
- Frances Payne Bolton School of Nursing, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, United States.
| | - Shirley M Moore
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, USA
| | - Julia Chang
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, USA
| | - Emrose Bachhal
- Dahms Clinical Research Unit, University Hospitals, Cleveland, USA
| | - Kenneth E Sparks
- College of Education and Human Services, Cleveland State University, Cleveland, USA
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Hersh CM, Marrie RA. Harnessing real-world data to inform treatment decisions in multiple sclerosis. Neurology 2019; 93:285-286. [DOI: 10.1212/wnl.0000000000007934] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Abu-Arafeh I, Hershey AD, Diener HC, Tassorelli C. Guidelines of the International Headache Society for controlled trials of preventive treatment of migraine in children and adolescents, 1st edition. Cephalalgia 2019; 39:803-816. [DOI: 10.1177/0333102419842188] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background Because the results of clinical trials of investigational treatments influence regulatory policy, prescribing patterns, and use in clinical practice, high quality trials are an essential component of the evidence base for migraine. The International Headache Society has published guidelines for clinical trials in adults with migraine since 1991. With multiple issues specific to children and adolescents with migraine, as well as the emergence of novel trial designs and advances in pharmaceuticals, biologics, devices, and behavioural interventions, there is a need for guidance focusing on issues specific to the conduct of clinical trials in children and adolescents with migraine. Objectives The objective of these guidelines is to provide a contemporary, standardized, and evidence-based approach to the design, conduct, and reporting of well-controlled clinical trials of preventive treatment of migraine in children and adolescents. Methods The development of these guidelines was based on guidelines previously published by the International Headache Society and regulatory bodies. The recommendations are evidence-based, where available. The process included consultations among various committees, roundtable discussions among stakeholders (lay people and the pharmaceutical industry), and open consultation with the IHS membership on the final draft. Results A series of recommendations addressing the major issues in clinical trials in children and adolescents with migraine is provided. Recommendations are supported by evidence-based practice and validated methodologies, where available. Supporting comments are provided to clarify ambiguities. Conclusions These guidelines should be consulted and used in designing and conducting clinical trials of preventive treatments in children and adolescents with migraine.
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Affiliation(s)
- Ishaq Abu-Arafeh
- Paediatric Neurosciences Unit, Royal Hospital for Children, Glasgow, UK
| | - Andrew D Hershey
- Department of Pediatrics and Neurology, Cincinnati Children's Hospital, University of Cincinnati, College of Medicine, Cincinnati, OH, USA
| | | | - Cristina Tassorelli
- Headache Science Center, IRCCS C. Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
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Abstract
Multiple sclerosis (MS) is the most common chronic inflammatory, demyelinating and neurodegenerative disease of the central nervous system in young adults. This disorder is a heterogeneous, multifactorial, immune-mediated disease that is influenced by both genetic and environmental factors. In most patients, reversible episodes of neurological dysfunction lasting several days or weeks characterize the initial stages of the disease (that is, clinically isolated syndrome and relapsing-remitting MS). Over time, irreversible clinical and cognitive deficits develop. A minority of patients have a progressive disease course from the onset. The pathological hallmark of MS is the formation of demyelinating lesions in the brain and spinal cord, which can be associated with neuro-axonal damage. Focal lesions are thought to be caused by the infiltration of immune cells, including T cells, B cells and myeloid cells, into the central nervous system parenchyma, with associated injury. MS is associated with a substantial burden on society owing to the high cost of the available treatments and poorer employment prospects and job retention for patients and their caregivers.
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Affiliation(s)
- Massimo Filippi
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy. .,Department of Neurology, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy.
| | - Amit Bar-Or
- Department of Neurology and Center for Neuroinflammation and Experimental Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Fredrik Piehl
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.,Department of Neurology, Karolinska University Hospital, Stockholm, Sweden.,Neuroimmunology Unit, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden
| | - Paolo Preziosa
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy.,Department of Neurology, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Alessandra Solari
- Unit of Neuroepidemiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sandra Vukusic
- Service de Neurologie, Sclérose en Plaques, Pathologies de la Myéline et Neuro-inflammation, Fondation Eugène Devic EDMUS Contre la Sclérose en Plaques, Hôpital Neurologique Pierre Wertheimer, Hospices Civils de Lyon, Lyon, France
| | - Maria A Rocca
- Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy.,Department of Neurology, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
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Marrie RA, Montalban X. Disease-modifying therapy in multiple sclerosis: Two guidelines (almost) passing in the night. Mult Scler 2018; 24:558-562. [DOI: 10.1177/1352458518767323] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Ruth Ann Marrie
- Departments of Internal Medicine and Community Health Sciences, Rady Faculty of Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Xavier Montalban
- Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Vall d’Hebron University Hospital, Barcelona, Spain; Division of Neurology, University of Toronto, St Michael’s Hospital, Toronto, ON, Canada
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Tassorelli C, Diener HC, Dodick DW, Silberstein SD, Lipton RB, Ashina M, Becker WJ, Ferrari MD, Goadsby PJ, Pozo-Rosich P, Wang SJ. Guidelines of the International Headache Society for controlled trials of preventive treatment of chronic migraine in adults. Cephalalgia 2018; 38:815-832. [DOI: 10.1177/0333102418758283] [Citation(s) in RCA: 164] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Quality clinical trials form an essential part of the evidence base for the treatment of headache disorders. In 1991, the International Headache Society Clinical Trials Standing Committee developed and published the first edition of the Guidelines for Controlled Trials of Drugs in Migraine. In 2008, the Committee published the first specific guidelines on chronic migraine. Subsequent advances in drug, device, and biologicals development, as well as novel trial designs, have created a need for a revision of the chronic migraine guidelines. Objective The present update is intended to optimize the design of controlled trials of preventive treatment of chronic migraine in adults, and its recommendations do not apply to trials in children or adolescents.
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Affiliation(s)
- Cristina Tassorelli
- Headache Science Center, C. Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | | | | | | | - Richard B Lipton
- Montefiore Headache Center, Department of Neurology and Department of Epidemiology and Population Health, Albert Einstein College of Medicine, New York, NY, USA
| | - Messoud Ashina
- Danish Headache Center, Department of Neurology, Rigshospitalet Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Glostrup, Denmark
| | - Werner J Becker
- Dept of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, Calgary, Alberta, Canada
| | - Michel D Ferrari
- Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands
| | - Peter J Goadsby
- National Institute for Health Research-Wellcome Trust King’s Clinical Research Facility, King’s College Hospital, London, England
| | - Patricia Pozo-Rosich
- Headache Research Group, VHIR, Universitat Autònoma de Barcelona, Barcelona Spain
- Neurology Department, Hospital Vall d’Hebron, Barcelona, Spain
| | - Shuu-Jiun Wang
- Neurological Institute, Taipei Veterans General Hospital and Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
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Abstract
PURPOSE OF REVIEW Understanding the mechanisms underlying progression in multiple sclerosis (MS) and identifying appropriate therapeutic targets is a key challenge facing the MS community. This challenge has been championed internationally by organizations such as the Progressive MS Alliance, which has raised the profile of progressive MS and identified the key obstacles to treatment. This review will outline the considerable progress against these challenges. RECENT FINDINGS New insights into mechanisms underlying progression have opened up potential therapeutic opportunities. This has been complemented by ongoing validation of clinical and imaging outcomes for Phase II trials of progression, coupled with the development of innovative trial designs. The field has been greatly encouraged by recent positive Phase III trials in both primary and secondary progressive MS, albeit with modest benefit. Early trials of neuroprotection and repair have provided important new data with which to drive the field. Improving symptom management and advancing rehabilitation approaches, critical for this patient population which, taken together with identifying and managing comorbidities and risk factors, has an appreciable impact on health-related quality of life. SUMMARY Raising the profile of progressive MS has resulted in the first effective treatments with the promise of more to come.
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Laroni A, Signori A, Maniscalco GT, Lanzillo R, Russo CV, Binello E, Lo Fermo S, Repice A, Annovazzi P, Bonavita S, Clerico M, Baroncini D, Prosperini L, La Gioia S, Rossi S, Cocco E, Frau J, Torri Clerici V, Signoriello E, Sartori A, Zarbo IR, Rasia S, Cordioli C, Cerqua R, Di Sapio A, Lavorgna L, Pontecorvo S, Barrilà C, Saccà F, Frigeni B, Esposito S, Ippolito D, Gallo F, Sormani MP. Assessing association of comorbidities with treatment choice and persistence in MS. Neurology 2017; 89:2222-2229. [DOI: 10.1212/wnl.0000000000004686] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 08/24/2017] [Indexed: 01/09/2023] Open
Abstract
Objective:To assess whether the presence of concomitant diseases at multiple sclerosis (MS) diagnosis is associated with the choice and the treatment persistence in an Italian MS cohort.Methods:We included newly diagnosed patients (2010–2016) followed in 20 MS centers and collected demographic and clinical data. We evaluated baseline factors related to the presence of comorbidities and the association between comorbidities and the clinical course of MS and the time to the first treatment switch.Results:The study cohort included 2,076 patients. Data on comorbidities were available for 1,877/2,076 patients (90.4%). A total of 449/1,877 (23.9%) patients had at least 1 comorbidity at MS diagnosis. Age at diagnosis (odds ratio 1.05, 95% confidence interval [CI] 1.04–1.06; p < 0.001) was the only baseline factor independently related to the presence of comorbidities. Comorbidities were not significantly associated with the choice of the first disease-modifying treatment, but were significantly associated with higher risk to switch from the first treatment due to intolerance (hazard ratio 1.42, CI 1.07–1.87; p = 0.014). Association of comorbidities with risk of switching for intolerance was significantly heterogeneous among treatments (interferon β, glatiramer acetate, natalizumab, or fingolimod; interaction test, p = 0.04).Conclusions:Comorbidities at diagnosis should be taken into account at the first treatment choice because they are associated with lower persistence on treatment.
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Thormann A, Sørensen PS, Koch-Henriksen N, Laursen B, Magyari M. Comorbidity in multiple sclerosis is associated with diagnostic delays and increased mortality. Neurology 2017; 89:1668-1675. [PMID: 28931645 DOI: 10.1212/wnl.0000000000004508] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 07/24/2017] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To investigate the effect of chronic comorbidity on the time of diagnosis of multiple sclerosis (MS) and on mortality in MS. METHODS We conducted a population-based, nationwide cohort study including all incident MS cases in Denmark with first MS symptom between 1980 and 2005. To investigate the time of diagnosis, we compared individuals with and without chronic comorbidity using multinomial logistic regression. To investigate mortality, we used Cox regression with time-dependent covariates, following study participants from clinical MS onset until endpoint (death) or to the end of the study, censuring at emigration. RESULTS We identified 8,947 individuals with clinical onset of MS between 1980 and 2005. In the study of time of diagnosis, we found statistically significant odds ratios for longer diagnostic delays with cerebrovascular comorbidity (2.01 [1.44-2.80]; <0.0005), cardiovascular comorbidity (4.04 [2.78-5.87]; <0.0005), lung comorbidity (1.93 [1.42-2.62]; <0.0005), diabetes comorbidity (1.78 [1.04-3.06]; 0.035), and cancer comorbidity (2.10 [1.20-3.67]; 0.009). In the mortality study, we found higher hazard ratios with psychiatric comorbidity (2.42 [1.67-3.01]; <0.0005), cerebrovascular comorbidity (2.47 [2.05-2.79]; <0.0005), cardiovascular comorbidity (1.68 [1.39-2.03]; <0.0005), lung comorbidity (1.23 [1.01-1.50]; 0.036), diabetes comorbidity (1.39 [1.05-1.85]; 0.021), cancer comorbidity (3.51 [2.94-4.19]; <0.0005), and Parkinson disease comorbidity (2.85 [1.34-6.06]; 0.007). CONCLUSIONS An increased awareness of both the necessity of neurologic evaluation of new neurologic symptoms in persons with preexisting chronic disease and of optimum treatment of comorbidity in MS is critical.
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Affiliation(s)
- Anja Thormann
- From the Danish Multiple Sclerosis Center (A.T., P.S.S., M.M.), Department of Neurology, University of Copenhagen, Rigshospitalet; The Danish Multiple Sclerosis Registry (A.T., N.K.-H., M.M.), Department of Neurology, Rigshospitalet, Copenhagen; Department of Clinical Epidemiology (N.K.-H.), Clinical Institute, University of Aarhus; and The Danish National Institute of Public Health (B.L.), University of Southern Denmark, Copenhagen.
| | - Per Soelberg Sørensen
- From the Danish Multiple Sclerosis Center (A.T., P.S.S., M.M.), Department of Neurology, University of Copenhagen, Rigshospitalet; The Danish Multiple Sclerosis Registry (A.T., N.K.-H., M.M.), Department of Neurology, Rigshospitalet, Copenhagen; Department of Clinical Epidemiology (N.K.-H.), Clinical Institute, University of Aarhus; and The Danish National Institute of Public Health (B.L.), University of Southern Denmark, Copenhagen
| | - Nils Koch-Henriksen
- From the Danish Multiple Sclerosis Center (A.T., P.S.S., M.M.), Department of Neurology, University of Copenhagen, Rigshospitalet; The Danish Multiple Sclerosis Registry (A.T., N.K.-H., M.M.), Department of Neurology, Rigshospitalet, Copenhagen; Department of Clinical Epidemiology (N.K.-H.), Clinical Institute, University of Aarhus; and The Danish National Institute of Public Health (B.L.), University of Southern Denmark, Copenhagen
| | - Bjarne Laursen
- From the Danish Multiple Sclerosis Center (A.T., P.S.S., M.M.), Department of Neurology, University of Copenhagen, Rigshospitalet; The Danish Multiple Sclerosis Registry (A.T., N.K.-H., M.M.), Department of Neurology, Rigshospitalet, Copenhagen; Department of Clinical Epidemiology (N.K.-H.), Clinical Institute, University of Aarhus; and The Danish National Institute of Public Health (B.L.), University of Southern Denmark, Copenhagen
| | - Melinda Magyari
- From the Danish Multiple Sclerosis Center (A.T., P.S.S., M.M.), Department of Neurology, University of Copenhagen, Rigshospitalet; The Danish Multiple Sclerosis Registry (A.T., N.K.-H., M.M.), Department of Neurology, Rigshospitalet, Copenhagen; Department of Clinical Epidemiology (N.K.-H.), Clinical Institute, University of Aarhus; and The Danish National Institute of Public Health (B.L.), University of Southern Denmark, Copenhagen
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Pardo G, Jones DE. The sequence of disease-modifying therapies in relapsing multiple sclerosis: safety and immunologic considerations. J Neurol 2017; 264:2351-2374. [PMID: 28879412 PMCID: PMC5688209 DOI: 10.1007/s00415-017-8594-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/11/2017] [Accepted: 08/12/2017] [Indexed: 12/18/2022]
Abstract
The treatment landscape for relapsing forms of multiple sclerosis (RMS) has expanded considerably over the last 10 years with the approval of multiple new disease-modifying therapies (DMTs), and others in late-stage clinical development. All DMTs for RMS are believed to reduce central nervous system immune-mediated inflammatory processes, which translate into demonstrable improvement in clinical and radiologic outcomes. However, some DMTs are associated with long-lasting effects on the immune system and/or serious adverse events, both of which may complicate the use of subsequent therapies. When customizing a treatment program, a benefit–risk assessment must consider multiple factors, including the efficacy of the DMT to reduce disease activity, the short- and long-term safety and immunologic profiles of each DMT, the criteria used to define switching treatment, and the risk tolerance of each patient. A comprehensive benefit–risk assessment can only be achieved by evaluating the immunologic, safety, and efficacy data for DMTs in the controlled clinical trial environment and the postmarketing clinical practice setting. This review is intended to help neurologists make informed decisions when treating RMS by summarizing the known data for each DMT and raising awareness of the multiple considerations involved in treating people with RMS throughout the entire course of their disease.
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Affiliation(s)
- Gabriel Pardo
- OMRF Multiple Sclerosis Center of Excellence, Oklahoma Medical Research Foundation, 820 NE 15th Street, Oklahoma City, OK, 73104, USA.
| | - David E Jones
- Department of Neurology, University of Virginia School of Medicine, PO Box 800394, Charlottesville, VA, 22908, USA
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Bisson EJ, Fakolade A, Pétrin J, Lamarre J, Finlayson M. Exercise interventions in multiple sclerosis rehabilitation need better reporting on comorbidities: a systematic scoping review. Clin Rehabil 2017; 31:1305-1312. [PMID: 28933610 DOI: 10.1177/0269215517698734] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To identify the extent to which exercise intervention studies in multiple sclerosis rehabilitation are addressing comorbidities and if researchers consider comorbidities as possible moderators or mediators of exercise outcomes. METHODS Five databases were searched from inception to January 8, 2016, for exercise-related terms in combination with multiple sclerosis. Studies were screened and limited to randomized control trials, full text, and English language. We assessed whether comorbidities were excluded or included, how they were reported and described, and if they were examined as possible moderators or mediators of exercise outcomes. RESULTS We reviewed 99 articles that included various exercise interventions, where the most common were general multi-faceted exercise training ( n=34), cardiovascular training ( n=18), progressive-resistance training ( n=12), and balance and gait training ( n=12). In total, 77 of 99 studies reported one or more comorbidities as an exclusion criterion. The most commonly excluded comorbidities were cardiovascular diseases, cognitive impairments or psychiatric disorders, and unspecified conditions or contraindications. Only nine studies reported details on excluded participants with comorbidities. Across studies that reported comorbidities of included participants ( n=8), none examined comorbidities as possible moderators or mediators of exercise outcomes. CONCLUSION Although a variety of exercise interventions have positive outcomes, there is limited evidence that these interventions are generalizable to people with multiple sclerosis who have comorbid conditions.
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Affiliation(s)
- Etienne J Bisson
- School of Rehabilitation Therapy, Queen's University, Kingston, ON, Canada
| | - Afolasade Fakolade
- School of Rehabilitation Therapy, Queen's University, Kingston, ON, Canada
| | - Julie Pétrin
- School of Rehabilitation Therapy, Queen's University, Kingston, ON, Canada
| | - Julie Lamarre
- School of Rehabilitation Therapy, Queen's University, Kingston, ON, Canada
| | - Marcia Finlayson
- School of Rehabilitation Therapy, Queen's University, Kingston, ON, Canada
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Thompson A. Multiple sclerosis: the upward trajectory continues. Lancet Neurol 2017; 16:10-12. [DOI: 10.1016/s1474-4422(16)30343-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 11/09/2016] [Indexed: 10/20/2022]
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Fakolade A, Bisson EJ, Pétrin J, Lamarre J, Finlayson M. Effect of Comorbidities on Outcomes of Neurorehabilitation Interventions in Multiple Sclerosis: A Scoping Review. Int J MS Care 2016; 18:282-290. [PMID: 27999522 DOI: 10.7224/1537-2073.2016-015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background: Interest in comorbidities has increased in the past few years, but the effect of comorbidities on outcomes of multiple sclerosis (MS) neurorehabilitation interventions is unclear. The aim of this review was to identify and summarize the existing evidence regarding the effect of comorbidities on outcomes of neurorehabilitation interventions targeting people with MS. Methods: Five databases (Embase, MEDLINE through Ovid, PubMed Central, Cumulative Index to Nursing and Allied Health Literature, and Web of Science) were searched using index terms and keywords relating to MS and a wide range of rehabilitation interventions. Studies screened were limited to English-language randomized controlled trials. Information related to included and excluded comorbidities and how they were reported and described was extracted from the included studies. Results: Fifty-four neurorehabilitation randomized controlled trials were included and were grouped into categories: robotics/technology-enhanced (n = 7), task-oriented training/neurorehabilitation principles (n = 7), electrical stimulation (n = 12), temperature regulation (n = 6), magnetic field therapy (n = 5), vibration (n = 9), and miscellaneous (n = 8). Although the issue of comorbidity was considered in 40 studies, it was limited to excluding individuals from participating in the trials. Only two studies reported on comorbidity, but neither examined the possible mediating or moderating effect of comorbidities on intervention outcomes. Conclusions: This review documents important knowledge gaps about the effect of comorbidity on neurorehabilitation outcomes and identifies a critical need for future studies to address this issue. Without this information, we limit our understanding of the mechanisms of comorbidity and its effects on relevant clinical and research outcomes specific to neurorehabilitation.
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Thormann A, Koch-Henriksen N, Laursen B, Sørensen PS, Magyari M. Inverse comorbidity in multiple sclerosis: Findings in a complete nationwide cohort. Mult Scler Relat Disord 2016; 10:181-186. [PMID: 27919487 DOI: 10.1016/j.msard.2016.10.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/05/2016] [Accepted: 10/26/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Inverse comorbidity is disease occurring at lower rates than expected among persons with a given index disease. The objective was to identify inverse comorbidity in MS. METHODS We performed a combined case-control and cohort study in a total nationwide cohort of cases with clinical onset of MS 1980-2005. We randomly matched each MS-case with five population controls. Comorbidity data were obtained from multiple, independent nationwide registries. Cases and controls were followed from January 1977 to the index date, and from the index date through December 2012. We controlled for false discovery rate and investigated each of eight pre-specified comorbidity categories: psychiatric, cerebrovascular, cardiovascular, lung, and autoimmune comorbidities, diabetes, cancer, and Parkinson's disease. RESULTS A total of 8947 MS-cases and 44,735 controls were eligible for inclusion. We found no inverse associations with MS before the index date. After the index date, we found a decreased occurrence of chronic lung disease (asthma and chronic obstructive pulmonary disease) (HR 0.80 (95% CI 0.75-0.86, p<0.00025)) and overall cancer (HR 0.88 (95% CI 0.81-0.95, p=0.0005)) among MS-cases. CONCLUSION This study showed a decreased risk of cancers and pulmonary diseases after onset of MS. Identification of inverse comorbidity and of its underlying mechanisms may provide important new entry points into the understanding of MS.
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Affiliation(s)
- Anja Thormann
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark; The Danish Multiple Sclerosis Registry, Department of Neurology, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark.
| | - Nils Koch-Henriksen
- The Danish Multiple Sclerosis Registry, Department of Neurology, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark; Department of Clinical Epidemiology, Clinical Institute, University of Aarhus, Olof Palmes Allé 43-45, DK-8200 Aarhus N, Denmark
| | - Bjarne Laursen
- The Danish National Institute of Public Health, University of Southern Denmark, Øster Farimagsgade 5A, DK-1353 Copenhagen K, Denmark
| | - Per Soelberg Sørensen
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Melinda Magyari
- Danish Multiple Sclerosis Center, Department of Neurology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, DK-2100 Copenhagen, Denmark; The Danish Multiple Sclerosis Registry, Department of Neurology, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
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Thormann A, Magyari M, Koch-Henriksen N, Laursen B, Sørensen PS. Vascular comorbidities in multiple sclerosis: a nationwide study from Denmark. J Neurol 2016; 263:2484-2493. [DOI: 10.1007/s00415-016-8295-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/11/2016] [Accepted: 09/23/2016] [Indexed: 12/29/2022]
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Marrie RA, Miller A, Sormani MP, Thompson A, Waubant E, Trojano M, O'Connor P, Fiest K, Reider N, Reingold S, Cohen JA. Recommendations for observational studies of comorbidity in multiple sclerosis. Neurology 2016; 86:1446-1453. [PMID: 26865523 PMCID: PMC4831039 DOI: 10.1212/wnl.0000000000002474] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 01/07/2016] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE To reach consensus about the most relevant comorbidities to study in multiple sclerosis (MS) with respect to incidence, prevalence, and effect on outcomes; review datasets that may support studies of comorbidity in MS; and identify MS outcomes that should be prioritized in such studies. METHODS We held an international workshop to meet these objectives, informed by a systematic review of the incidence and prevalence of comorbidity in MS, and an international survey regarding research priorities for comorbidity. RESULTS We recommend establishing age- and sex-specific incidence and prevalence estimates for 5 comorbidities (depression, anxiety, hypertension, hyperlipidemia, and diabetes); evaluating the effect of 7 comorbidities (depression, anxiety, hypertension, diabetes, hyperlipidemia, chronic lung disease, and autoimmune diseases) on disability, quality of life, brain atrophy and other imaging parameters, health care utilization, employment, and mortality, including age, sex, race/ethnicity, socioeconomic status, and disease duration as potential confounders; harmonizing study designs across jurisdictions; and conducting such studies worldwide. Ultimately, clinical trials of treating comorbidity in MS are needed. CONCLUSION Our recommendations will help address knowledge gaps regarding the incidence, prevalence, and effect of comorbidity on outcomes in MS.
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Affiliation(s)
- Ruth Ann Marrie
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH.
| | - Aaron Miller
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Maria Pia Sormani
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Alan Thompson
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Emmanuelle Waubant
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Maria Trojano
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Paul O'Connor
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Kirsten Fiest
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Nadia Reider
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Stephen Reingold
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
| | - Jeffrey A Cohen
- From the Departments of Internal Medicine (R.A.M., K.F.) and Community Health Sciences (R.A.M., N.R.), University of Manitoba, Winnipeg, Canada; Icahn School of Medicine at Mount Sinai (A.M.), New York, NY; Biostatistic Unit, Department of Health Sciences (M.P.S.), University of Genova, Italy; Faculty of Brain Sciences (A.T.), University College London, UK; University of California San Francisco (E.W.); Department of Basic Medical Sciences, Neurosciences and Sense Organs (M.T.), University of Bari, Italy; St. Michael's Hospital (P.O.), Toronto, Canada; Scientific and Clinical Review Associates, LLC (S.R.), Salisbury, CT; and Mellen Center for MS Treatment and Research (J.A.C.), Cleveland Clinic, OH
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