Elizabeth Stringer

The outcomes of juvenile idiopathic arthritis in children managed with contemporary treatments: results from the ReACCh-Out cohort

Objective To describe clinical outcomes of juvenile idiopathic arthritis (JIA) in a prospective inception cohort of children managed with contemporary treatments. Methods Children newly diagnosed with JIA at 16 Canadian paediatric rheumatology centres from 2005 to 2010 were included. Kaplan–Meier survival curves for each JIA category were used to estimate probability of ever attaining an active joint count of 0, inactive disease (no active joints, no extraarticular manifestations and a physician global assessment of disease activity <10 mm), disease remission (inactive disease >12 months after discontinuing treatment) and of receiving specific treatments. Results In a cohort of 1104 children, the probabilities of attaining an active joint count of 0 exceeded 78% within 2 years in all JIA categories. The probability of attaining inactive disease exceeded 70% within 2 years in all categories, except for RF-positive polyarthritis (48%). The probability of discontinuing treatment at least once was 67% within 5 years. The probability of attaining remission within 5 years was 46–57% across JIA categories except for polyarthritis (0% RF-positive, 14% RF-negative). Initial treatment included joint injections and non-steroidal anti-inflammatory drugs for oligoarthritis, disease-modifying antirheumatic drugs (DMARDs) for polyarthritis and systemic corticosteroids for systemic JIA. Conclusions Most children with JIA managed with contemporary treatments attain inactive disease within 2 years of diagnosis and many are able to discontinue treatment. The probability of attaining remission within 5 years of diagnosis is about 50%, except for children with polyarthritis.

Consensus treatments for moderate juvenile dermatomyositis: Beyond the first two months. Results of the Second Childhood Arthritis and Rheumatology Research Alliance Consensus Conference

To use consensus methods and the considerable expertise contained within the Childhood Arthritis and Rheumatology Research Alliance (CARRA) organization to extend the 3 previously developed treatment plans for moderate juvenile dermatomyositis (DM) to span the full course of treatment.

Treatment approaches to juvenile dermatomyositis (JDM) across North America: The Childhood Arthritis and Rheumatology Research Alliance (CARRA) JDM treatment survey

Objective. There are a number of different approaches to the initial treatment of juvenile dermatomyositis (JDM). We assessed the therapeutic approaches of North American pediatric rheumatologists to inform future studies of therapy in JDM. Methods. A survey describing clinical cases of JDM was sent to pediatric rheumatologists. The cases described children with varying severity of typical disease, disease with atypical features, or refractory disease. Three open-ended questions were asked following each case: (1) What additional investigations would you order; (2) What medicine(s) would you start (dose, route, frequency, adjustment over time); and (3) What nonmedication treatment(s) would you start. Results. The response rate was 84% (141/167). For typical cases of JDM, regardless of severity, almost all respondents used corticosteroids and another medication, methotrexate (MTX) being the most commonly used. The route and pattern of corticosteroid administration was variable. Intravenous immunoglobulin (IVIG) was used more frequently for more severe disease, for refractory disease, and for prominent cutaneous disease. Hydroxychloroquine was often used in milder cases and cases principally characterized by rash. Cyclophosphamide was reserved for ulcerative disease and JDM complicated by lung disease. Conclusion. For the majority of North American pediatric rheumatologists, corticosteroids and MTX appear to be the standard of care for typical cases of JDM. There is variability, however, in the route of administration of corticosteroids and use of IVIG and hydroxychloroquine.

A systematic review of transition readiness and transfer satisfaction measures for adolescents with chronic illness.

Abstract Background: The transition from pediatric to adult health care can be challenging for adolescents with chronic illnesses. As a result, many adolescents are unable to transfer to adult health care successfully. Adequate measurement of transition readiness and transfer satisfaction with disease management is necessary in order to determine areas to target for intervention towards improving transfer outcomes. Objectives: This study aims to systematically review and critically appraise research on transition readiness and transfer satisfaction measures for adolescents with chronic illnesses as well as to assess the psychometric quality of these measures. Methods: Electronic searches were conducted in MEDLINE, EMBASE, CINAHL, PsychINFO, ERIC, and ISI Web of Knowledge for transition readiness and transfer satisfaction measures for adolescents with chronic health conditions. Two reviewers independently selected articles for review and assessed methodological quality. Results: In all, eight readiness and six satisfaction measures met the inclusion criteria, for a total of 14 studies, which were included in the final analysis. None of these measures have well-established evidence of reliability and validity. Most of the measures were developed ad hoc by the study investigators, with minimal to no evidence of reliability and/or validity using the Cohen criteria and COSMIN checklist. Conclusion: This research indicates a major gap in our knowledge of transitional care in this population, because there is currently no well-validated questionnaire that measures readiness for transfer to adult health care. Future research must focus on the development of well-validated transition readiness questionnaires, the validation of existing measures, and reaching consensus on outcomes of successful transfer.

Advances in the treatment of juvenile dermatomyositis.

Purpose of reviewJuvenile dermatomyositis is a rare chronic inflammatory disease that primarily affects the muscles and skin. Immunosuppressive therapy has played a very important role in reducing mortality rates and morbidity. The review focuses on the spectrum of medications currently used in the treatment of juvenile dermatomyositis, highlighting new advances and unanswered questions. Recent findingsData regarding the treatment of juvenile dermatomyositis come almost entirely from retrospective studies with relatively small numbers of patients. Corticosteroids continue to be the accepted first-line therapy. Evidence that the addition of methotrexate at initiation of treatment allows corticosteroids to be tapered more rapidly with good outcomes exists. High-risk, refractory patients may benefit from intravenous cyclophosphamide. Results in refractory patients treated with rituximab are also encouraging. Topical immunosuppressant agents have been largely disappointing in treating rash. The effect and role of exercise in the treatment and rehabilitation of patients with juvenile dermatomyositis is an interesting new area of research. SummaryFuture research in the treatment of juvenile dermatomyositis should focus on improving the understanding of disease course and its predictors such that treatment protocols can be developed to provide the most benefit and least amount of medication toxicity for the individual patient.

The risk and nature of flares in juvenile idiopathic arthritis: results from the ReACCh-Out cohort

Objective To describe probabilities and characteristics of disease flares in children with juvenile idiopathic arthritis (JIA) and to identify clinical features associated with an increased risk of flare. Methods We studied children in the Research in Arthritis in Canadian Children emphasizing Outcomes (ReACCh-Out) prospective inception cohort. A flare was defined as a recurrence of disease manifestations after attaining inactive disease and was called significant if it required intensification of treatment. Probability of first flare was calculated with Kaplan–Meier methods, and associated features were identified using Cox regression. Results 1146 children were followed up a median of 24 months after attaining inactive disease. We observed 627 first flares (54.7% of patients) with median active joint count of 1, physician global assessment (PGA) of 12 mm and duration of 27 weeks. Within a year after attaining inactive disease, the probability of flare was 42.5% (95% CI 39% to 46%) for any flare and 26.6% (24% to 30%) for a significant flare. Within a year after stopping treatment, it was 31.7% (28% to 36%) and 25.0% (21% to 29%), respectively. A maximum PGA >30 mm, maximum active joint count >4, rheumatoid factor (RF)-positive polyarthritis, antinuclear antibodies (ANA) and receiving disease-modifying antirheumatic drugs (DMARDs) or biological agents before attaining inactive disease were associated with increased risk of flare. Systemic JIA was associated with the lowest risk of flare. Conclusions In this real-practice JIA cohort, flares were frequent, usually involved a few swollen joints for an average of 6 months and 60% led to treatment intensification. Children with a severe disease course had an increased risk of flare.

Biologic therapies for refractory juvenile dermatomyositis: five years of experience of the Childhood Arthritis and Rheumatology Research Alliance in North America

BackgroundThe prognosis of children with juvenile dermatomyositis (JDM) has improved remarkably since the 1960’s with the use of corticosteroid and immunosuppressive therapy. Yet there remain a minority of children who have refractory disease. Since 2003 the sporadic use of biologics (genetically-engineered proteins that usually are derived from human genes) for inflammatory myositis has been reported. In 2011–2016 we investigated our collective experience of biologics in JDM through the Childhood Arthritis and Rheumatology Research Alliance (CARRA).MethodsThe JDM biologic study group developed a survey on the CARRA member experience using biologics for Juvenile DM utilizing Delphi consensus methods in 2011–2012. The survey was completed online by the CARRA members interested in JDM in 2012. A second survey was similarly developed that provided more opportunity to describe their experiences with biologics in JDM in detail and was completed by CARRA members in Feb 2013. During three CARRA meetings in 2013–2015, nominal group techniques were used for achieving consensus on the current choices of biologic drugs. A final survey was performed at the 2016 CARRA meeting.ResultsOne hundred and five of a potential 231 pediatric rheumatologists (42%) responded to the first survey in 2012. Thirty-five of 90 had never used a biologic for Juvenile DM at that time. Fifty-five of 91 (denominators vary) had used biologics for JDM in their practice with 32%, 5%, and 4% using rituximab, etanercept, and infliximab, respectively, and 17% having used more than one of the three drugs. Ten percent used a biologic as monotherapy, 19% a biologic in combination with methotrexate (mtx), 52% a biologic in combination with mtx and corticosteroids, 42% a combination of a biologic, mtx, corticosteroids (steroids), and an immunosuppressive drug, and 43% a combination of a biologic, IVIG and mtx. The results of the second survey supported these findings in considerably more detail with multiple combinations of drugs used with biologics and supported the use of rituximab, abatacept, anti-TNFα drugs, and tocilizumab in that order. One hundred percent recommended that CARRA continue studying biologics for JDM. The CARRA meeting survey in 2016 again supported the study and use of these four biologic drug groups.ConclusionsOur CARRA JDM biologic work group developed and performed three surveys demonstrating that pediatric rheumatologists in North America have been using multiple biologics for refractory JDM in numerous scenarios from 2011 to 2016. These survey results and our consensus meetings determined our choice of four biologic therapies (rituximab, abatacept, tocilizumab and anti-TNFα drugs) to consider for refractory JDM treatment when indicated and to evaluate for comparative effectiveness and safety in the future.Significance and InnovationsThis is the first report that provides a substantial clinical experience of a large group of pediatric rheumatologists with biologics for refractory JDM over five years.This experience with biologic therapies for refractory JDM may aid pediatric rheumatologists in the current treatment of these children and form a basis for further clinical research into the comparative effectiveness and safety of biologics for refractory JDM.

Access to Biologic Therapies in Canada for Children with Juvenile Idiopathic Arthritis

Objective. To compare access to biologic therapies for children with juvenile idiopathic arthritis (JIA) across Canada, and to identify differences in provincial regulations and criteria for access. Methods. Between June and August 2010, we compiled the provincial guidelines for reimbursement of biologic drugs for children with JIA and conducted a multicenter Canada-wide survey of pediatric rheumatologists to determine their experience with accessing biologic therapies for their patients. Results. There were significant difficulties accessing biologic treatments other than etanercept and abatacept for children. There were large discrepancies in the access criteria and coverage of biologic agents across provinces, notably with age restrictions for younger children. Conclusion. Canadian children with JIA may not receive optimal internationally recognized “standard” care because pediatric coverage for biologic drugs through provincial formularies is limited and inconsistent across the country. There is urgent need for public policy to improve access to biologic therapies for these children to ensure optimal short-term and longterm health outcomes.

‘It might hurt, but you have to push through the pain’ Perspectives on physical activity from children with juvenile idiopathic arthritis and their parents

Our primary objective was to gather perspectives of children diagnosed with juvenile idiopathic arthritis (JIA) and their parents as they relate to physical activity (PA) participation. To do so, we conducted a study on 23 children diagnosed with JIA and their parents (N = 29). We used convenience sampling to recruit participants and qualitative method- logies (one-on-one semi-structured interviews). We adopted a five-step framework analysis to categorize data into themes. Children and their parents described factors that act to facilitate or hinder PA participation. Pain was the most commonly highlighted PA barrier described by children and their parents. However, children who were newly diagnosed with JIA and their parents were more likely to highlight pain as a barrier than were child/parent dyads where children had been previously diagnosed.

Pathogenesis of Kawasaki disease: the central role of TNF-α

Kawasaki disease is the leading cause of multisystem vasculitis in childhood. The coronary arteries are targets of long-term inflammation and damage, making Kawasaki disease the leading cause of acquired heart disease in children from the developed world. The link between the systemic immune response seen in the acute phase of Kawasaki disease and subsequent damage to the coronary arteries is not clearly understood. Recent work points to TNF-α and its downstream effector molecules as the key players in mediating coronary artery damage. In this article, we will review the evidence pointing to TNF-α in the pathogenesis of disease and the implications for therapy.