Sara K Tedeschi, Keigo Hayashi, Yuqing Zhang, Hyon Choi, Daniel H Solomon
{"title":"Identifying the association between serum urate levels and gout flares in patients taking urate-lowering therapy: a post hoc cohort analysis of the CARES trial with consideration of dropout.","authors":"Sara K Tedeschi, Keigo Hayashi, Yuqing Zhang, Hyon Choi, Daniel H Solomon","doi":"10.1136/ard-2024-225761","DOIUrl":"10.1136/ard-2024-225761","url":null,"abstract":"<p><strong>Objective: </strong>To investigate gout flare rates based on repeated serum urate (SU) measurements in a randomised controlled trial of urate-lowering therapy (ULT), accounting for dropout and death.</p><p><strong>Methods: </strong>We performed a secondary analysis using data from Cardiovascular Safety of Febuxostat or Allopurinol in Patients with Gout, which randomised participants to febuxostat or allopurinol, titrated to target SU <6 mg/dL with flare prophylaxis for 6 months. SU was categorised as ≤3.9, 4.0-5.9, 6.0-7.9, 8.0-9.9 or ≥ 10 mg/dL at each 3-6 month follow-up. The primary outcome was gout flare. Poisson regression models, adjusted for covariates and factors related to participant retention versus dropout, estimated gout flare incidence rate ratios by time-varying SU category.</p><p><strong>Results: </strong>Among 6183 participants, the median age was 65 years and 84% were male. Peak gout flare rates for all SU categories were observed in months 0-6, coinciding with the initiation of ULT and months 6-12 after stopping prophylaxis. Flare rates were similar across SU groups in the initial year of ULT. During months 36-72, a dose-response relationship was observed between the SU category and flare rate. Lower flare rates were observed when SU ≤3.9 mg/dL and greater rates when SU ≥10 mg/dL, compared with SU 4.0-5.9 mg/dL (p for trend <0.01).</p><p><strong>Conclusion: </strong>Gout flare rates were persistently higher when SU ≥6 mg/dL after the first year of ULT after accounting for censoring. The spike in flares in all categories after stopping prophylaxis suggests a longer duration of prophylaxis may be warranted.</p>","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1375-1380"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11442141/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140897122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Treatment of recalcitrant psoriasis and psoriatic arthritis with a combination of a biologic plus an oral JAK or TYK2 inhibitor: a case series.","authors":"M Grace Hren, Saakshi Khattri","doi":"10.1136/ard-2024-225800","DOIUrl":"10.1136/ard-2024-225800","url":null,"abstract":"","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1392-1393"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joanna C Robson, Montserrat M Díaz Encarnación, Peter Verhoeven, Raquel Olivenza Antón, Monica Balcells-Oliver, Tamara Popov, Sara Monti, Andreas Kronbichler
{"title":"Correspondence on 'EULAR recommendations for the management of ANCA-associated vasculitis: 2022 update' by Hellmich <i>et al</i>.","authors":"Joanna C Robson, Montserrat M Díaz Encarnación, Peter Verhoeven, Raquel Olivenza Antón, Monica Balcells-Oliver, Tamara Popov, Sara Monti, Andreas Kronbichler","doi":"10.1136/ard-2024-225583","DOIUrl":"10.1136/ard-2024-225583","url":null,"abstract":"","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"e20"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139929706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zoya Qaiyum, Michael Aaron Seidman, Heather Joan Ross, Robert D Inman
{"title":"Cardiac valve immune profiling in non-radiographic axial spondyloarthritis.","authors":"Zoya Qaiyum, Michael Aaron Seidman, Heather Joan Ross, Robert D Inman","doi":"10.1136/ard-2024-225942","DOIUrl":"10.1136/ard-2024-225942","url":null,"abstract":"","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1394-1399"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141454881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Javier Marrugo, Leah M Santacroce, Misti L Paudel, Sho Fukui, Alexander Turchin, Sara K Tedeschi, Daniel H Solomon
{"title":"Gout risk in adults with pre-diabetes initiating metformin.","authors":"Javier Marrugo, Leah M Santacroce, Misti L Paudel, Sho Fukui, Alexander Turchin, Sara K Tedeschi, Daniel H Solomon","doi":"10.1136/ard-2024-225652","DOIUrl":"10.1136/ard-2024-225652","url":null,"abstract":"<p><strong>Objective: </strong>Despite the strong association between gout and pre-diabetes, the role of metformin in gout among individuals with pre-diabetes remains uncertain. We compared the incidence rates of gout in adults with pre-diabetes starting metformin with those not using antidiabetic treatments.</p><p><strong>Methods: </strong>We conducted a new-user, propensity score-matched cohort study using electronic health records from an academic health system (2007-2022). Pre-diabetes was defined based on haemoglobin A1c levels. Metformin users were identified and followed from the first metformin prescription date. Non-users of antidiabetic medications were matched to metformin users based on propensity score and the start of follow-up. The primary outcome was incident gout. Cox proportional hazards models estimated the HR for metformin. Linear regression analyses assessed the association between metformin use and changes in serum urate (SU) or C-reactive protein (CRP).</p><p><strong>Results: </strong>We identified 25 064 individuals with pre-diabetes and propensity score-matched 1154 metformin initiators to 13 877 non-users. Baseline characteristics were well balanced (all standardised mean differences <0.1). The median follow-up was 3.9 years. The incidence rate of gout per 1000 person-years was lower in metformin users 7.1 (95% CI 5.1 to 10) compared with non-users 9.5 (95% CI 8.8 to 10.2). Metformin initiation was associated with a reduced relative risk of gout (HR 0.68, 95% CI 0.48 to 0.96). No relationship was found between metformin and changes in SU or CRP.</p><p><strong>Conclusions: </strong>Metformin use was associated with a reduced risk of gout among adults with pre-diabetes, suggesting that metformin may be important in lowering gout risk in individuals with pre-diabetes.</p>","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1368-1374"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11442121/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140943899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jerome Hadjadj, Yann Nguyen, Dalila Mouloudj, Rim Bourguiba, Mael Heiblig, Hassina Aloui, Chloe McAvoy, Valentin Lacombe, Samuel Ardois, Corrado Campochiaro, Alexandre Maria, Cyrille Coustal, Thibault Comont, Estibaliz Lazaro, Francois Lifermann, Guillaume Le Guenno, Hervé Lobbes, Vincent Grobost, Roderau Outh, Julien Campagne, Anais Dor-Etienne, Alice Garnier, Yvan Jamilloux, Antoine Dossier, Maxime Samson, Sylvain Audia, Barbara Nicolas, Alexis Mathian, Baptiste de Maleprade, Benjamin De Sainte-Marie, Benoit Faucher, Jean-David Bouaziz, Jonathan Broner, Cyril Dumain, Carole Antoine, Benjamin Carpentier, Brice Castel, Celine Lartigau-Roussin, Etienne Crickx, Geoffroy Volle, Damien Fayard, Paul Decker, Thomas Moulinet, Anael Dumont, Alexandre Nguyen, Achille Aouba, Jean-Philippe Martellosio, Matthieu Levavasseur, Sebastien Puigrenier, Pascale Antoine, Jean-Thomas Giraud, Olivier Hermine, Carole Lacout, Nihal Martis, Jean-Denis Karam, Francois Chasset, Laurent Arnaud, Paola Marianetti, Christophe Deligny, Thibaud Chazal, Pascal Woaye-Hune, Murielle Roux-Sauvat, Aurore Meyer, Pierre Sujobert, Pierre Hirsch, Noemie Abisror, Pierre Fenaux, Olivier Kosmider, Vincent Jachiet, Olivier Fain, Benjamin Terrier, Arsène Mekinian, Sophie Georgin-Lavialle
{"title":"Efficacy and safety of targeted therapies in VEXAS syndrome: retrospective study from the FRENVEX.","authors":"Jerome Hadjadj, Yann Nguyen, Dalila Mouloudj, Rim Bourguiba, Mael Heiblig, Hassina Aloui, Chloe McAvoy, Valentin Lacombe, Samuel Ardois, Corrado Campochiaro, Alexandre Maria, Cyrille Coustal, Thibault Comont, Estibaliz Lazaro, Francois Lifermann, Guillaume Le Guenno, Hervé Lobbes, Vincent Grobost, Roderau Outh, Julien Campagne, Anais Dor-Etienne, Alice Garnier, Yvan Jamilloux, Antoine Dossier, Maxime Samson, Sylvain Audia, Barbara Nicolas, Alexis Mathian, Baptiste de Maleprade, Benjamin De Sainte-Marie, Benoit Faucher, Jean-David Bouaziz, Jonathan Broner, Cyril Dumain, Carole Antoine, Benjamin Carpentier, Brice Castel, Celine Lartigau-Roussin, Etienne Crickx, Geoffroy Volle, Damien Fayard, Paul Decker, Thomas Moulinet, Anael Dumont, Alexandre Nguyen, Achille Aouba, Jean-Philippe Martellosio, Matthieu Levavasseur, Sebastien Puigrenier, Pascale Antoine, Jean-Thomas Giraud, Olivier Hermine, Carole Lacout, Nihal Martis, Jean-Denis Karam, Francois Chasset, Laurent Arnaud, Paola Marianetti, Christophe Deligny, Thibaud Chazal, Pascal Woaye-Hune, Murielle Roux-Sauvat, Aurore Meyer, Pierre Sujobert, Pierre Hirsch, Noemie Abisror, Pierre Fenaux, Olivier Kosmider, Vincent Jachiet, Olivier Fain, Benjamin Terrier, Arsène Mekinian, Sophie Georgin-Lavialle","doi":"10.1136/ard-2024-225640","DOIUrl":"10.1136/ard-2024-225640","url":null,"abstract":"<p><strong>Objectives: </strong>Vacuoles, E1 enzyme, X-linked, autoinflammatory and somatic (VEXAS) syndrome is an adult-onset autoinflammatory disease associated with somatic ubiquitin-like modifier-activating enzyme 1 (UBA1) mutations. We aimed to evaluate the efficacy and safety of targeted therapies.</p><p><strong>Methods: </strong>Multicentre retrospective study including patients with genetically proven VEXAS syndrome who had received at least one targeted therapy. Complete response (CR) was defined by a clinical remission, C-reactive protein (CRP) ≤10 mg/L and a ≤10 mg/day of prednisone-equivalent therapy, and partial response (PR) was defined by a clinical remission and a 50% reduction in CRP levels and glucocorticoid dose.</p><p><strong>Results: </strong>110 patients (median age 71 (68-79) years) who received 194 targeted therapies were included: 78 (40%) received Janus kinase (JAK) inhibitors (JAKi), 51 (26%) interleukin (IL)-6 inhibitors, 33 (17%) IL-1 inhibitors, 20 (10%) tumour necrosis factor (TNFα) blockers and 12 (6%) other targeted therapies. At 3 months, the overall response (CR and PR) rate was 24% with JAKi, 32% with IL-6 inhibitors, 9% with anti-IL-1 and 0% with TNFα blockers or other targeted therapies. At 6 months, the overall response rate was 30% with JAKi and 26% with IL-6 inhibitors. Survival without treatment discontinuation was significantly longer with JAKi than with the other targeted therapies. Among patients who discontinued treatment, causes were primary failure, secondary failure, serious adverse event or death in 43%, 14%, 19% and 19%, respectively, with JAKi and 46%, 11%, 31% and 9%, respectively, with IL-6 inhibitors.</p><p><strong>Conclusions: </strong>This study shows the benefit of JAKi and IL-6 inhibitors, whereas other therapies have lower efficacy. These results need to be confirmed in prospective trials.</p>","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1358-1367"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141079566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Krystel Aouad, Maarten de Wit, Muriel Elhai, Diego Benavent, Heidi Bertheussen, Condruta Zabalan, Jette Primdahl, Paul Studenic, Laure Gossec
{"title":"Patient research partner involvement in rheumatology research: a systematic literature review informing the 2023 updated EULAR recommendations for the involvement of patient research partners.","authors":"Krystel Aouad, Maarten de Wit, Muriel Elhai, Diego Benavent, Heidi Bertheussen, Condruta Zabalan, Jette Primdahl, Paul Studenic, Laure Gossec","doi":"10.1136/ard-2024-225567","DOIUrl":"10.1136/ard-2024-225567","url":null,"abstract":"<p><strong>Background: </strong>Patient research partners (PRPs) are people with a disease who collaborate in a research team as partners. The aim of this systematic literature review (SLR) was to assess barriers and facilitators to PRP involvement in rheumatology research.</p><p><strong>Methods: </strong>The SLR was conducted in PubMed/Medline for articles on PRP involvement in rheumatology research, published between 2017 and 2023; websites were also searched in rheumatology and other specialties. Data were extracted regarding the definition of PRPs, their role and added value, as well as barriers and facilitators to PRP involvement. The quality of the articles was assessed. Quantitative data were analysed descriptively, and principles of thematic content analysis was applied to qualitative data.</p><p><strong>Results: </strong>Of 1016 publications, 53 articles were included; the majority of these studies were qualitative studies (26%), opinion articles (21%), meeting reports (17%) and mixed-methods studies (11%). Roles of PRPs ranged from research partners to patient advocates, advisors and patient reviewers. PRPs were reported/advised to be involved early in the project (32% of articles) and in all research phases (30%), from the conception stage to the implementation of research findings. The main barriers were challenges in communication and support for both PRPs and researchers. Facilitators of PRP involvement included more than one PRP per project, training of PRPs and researchers, a supportive environment for PRPs (including adequate communication, acknowledgement and compensation of PRPs) and the presence of a PRP coordinator.</p><p><strong>Conclusion: </strong>This SLR identified barriers and facilitators to PRP involvement, and was key to updating the European Alliance of Associations for Rheumatology recommendations for PRP-researcher collaboration based on scientific evidence.</p>","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1268-1277"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11503057/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140897086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adjustment of p values for multiple hypotheses: why, when and how.","authors":"Stian Lydersen","doi":"10.1136/ard-2024-225537","DOIUrl":"10.1136/ard-2024-225537","url":null,"abstract":"<p><p>It is quite common to investigate multiple hypotheses in a single study. For example, a researcher may want to investigate the effect on several outcome variables or at different time points, compare more than two groups or undertake separate analyses for subgroups. This increases the probability of type I errors. Different procedures for multiplicity adjustment are available to control the probability of type I errors. In the present article, we describe some methods for multiplicity adjustment, along with recommendations.</p>","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1254-1255"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140897120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lucy Marie Carter, Md Yuzaiful Md Yusof, Zoe Wigston, Darren Plant, Stephanie Wenlock, Adewonuola Alase, Antonios Psarras, Edward M Vital
{"title":"Blood RNA-sequencing across the continuum of ANA-positive autoimmunity reveals insights into initiating immunopathology.","authors":"Lucy Marie Carter, Md Yuzaiful Md Yusof, Zoe Wigston, Darren Plant, Stephanie Wenlock, Adewonuola Alase, Antonios Psarras, Edward M Vital","doi":"10.1136/ard-2023-225349","DOIUrl":"10.1136/ard-2023-225349","url":null,"abstract":"<p><strong>Objective: </strong>Mechanisms underpinning clinical evolution to systemic lupus erythematosus (SLE) from preceding antinuclear antibodies (ANA) positivity are poorly understood. This study aimed to understand blood immune cell transcriptional signatures associated with subclinical ANA positivity, and progression or non-progression to SLE.</p><p><strong>Methods: </strong>Bulk RNA-sequencing of peripheral blood mononuclear cells isolated at baseline from 35 ANA positive (ANA+) subjects with non-diagnostic symptoms was analysed using differential gene expression, weighted gene co-expression network analysis, deconvolution of cell subsets and functional enrichment analyses. ANA+ subjects, including those progressing to classifiable SLE at 12 months (n=15) and those with stable subclinical ANA positivity (n=20), were compared with 15 healthy subjects and 18 patients with SLE.</p><p><strong>Results: </strong>ANA+ subjects demonstrated extensive transcriptomic dysregulation compared with healthy controls with reduced CD4+naïve T-cells and resting NK cells, but higher activated dendritic cells. B-cell lymphopenia was evident in SLE but not ANA+ subjects. Two-thirds of dysregulated genes were common to ANA+ progressors and non-progressors. ANA+ progressors showed elevated modular interferon signature in which constituent genes were inducible by both type I interferon (IFN-I) and type II interferon (IFN-II) in vitro. Baseline downregulation of mitochondrial oxidative phosphorylation complex I components significantly associated with progression to SLE but did not directly correlate with IFN modular activity. Non-progressors demonstrated more diverse cytokine profiles.</p><p><strong>Conclusions: </strong>ANA positivity, irrespective of clinical trajectory, is profoundly dysregulated and transcriptomically closer to SLE than to healthy immune function. Metabolic derangements and IFN-I activation occur early in the ANA+ preclinical phase and associated with diverging transcriptomic profiles which distinguish subsequent clinical evolution.</p>","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1322-1334"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140915739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Megan R W Barber, Manuel Francisco Ugarte-Gil, John G Hanly, Murray B Urowitz, Yvan St-Pierre, Caroline Gordon, Sang-Cheol Bae, Juanita Romero-Diaz, Jorge Sanchez-Guerrero, Sasha Bernatsky, Daniel J Wallace, David A Isenberg, Anisur Rahman, Joan T Merrill, Paul R Fortin, Dafna D Gladman, Ian N Bruce, Michelle Petri, Ellen M Ginzler, Mary Anne Dooley, Rosalind Ramsey-Goldman, Susan Manzi, Andreas Jönsen, Ronald F van Vollenhoven, Cynthia Aranow, Meggan Mackay, Guillermo Ruiz-Irastorza, S Sam Lim, Murat Inanc, Kenneth C Kalunian, Søren Jacobsen, Christine A Peschken, Diane L Kamen, Anca Askanase, Bernardo A Pons-Estel, Francesca S Cardwell, Graciela S Alarcón, Ann E Clarke
{"title":"Remission and low disease activity are associated with lower healthcare costs: results from the Systemic Lupus International Collaborating Clinics (SLICC) inception cohort.","authors":"Megan R W Barber, Manuel Francisco Ugarte-Gil, John G Hanly, Murray B Urowitz, Yvan St-Pierre, Caroline Gordon, Sang-Cheol Bae, Juanita Romero-Diaz, Jorge Sanchez-Guerrero, Sasha Bernatsky, Daniel J Wallace, David A Isenberg, Anisur Rahman, Joan T Merrill, Paul R Fortin, Dafna D Gladman, Ian N Bruce, Michelle Petri, Ellen M Ginzler, Mary Anne Dooley, Rosalind Ramsey-Goldman, Susan Manzi, Andreas Jönsen, Ronald F van Vollenhoven, Cynthia Aranow, Meggan Mackay, Guillermo Ruiz-Irastorza, S Sam Lim, Murat Inanc, Kenneth C Kalunian, Søren Jacobsen, Christine A Peschken, Diane L Kamen, Anca Askanase, Bernardo A Pons-Estel, Francesca S Cardwell, Graciela S Alarcón, Ann E Clarke","doi":"10.1136/ard-2024-225613","DOIUrl":"10.1136/ard-2024-225613","url":null,"abstract":"<p><strong>Objectives: </strong>This study aims to determine the independent impact of definitions of remission/low disease activity (LDA) on direct/indirect costs (DCs, ICs) in a multicentre inception cohort.</p><p><strong>Methods: </strong>Patients from 31 centres in 10 countries were enrolled within 15 months of diagnosis and assessed annually. Five mutually exclusive disease activity states (DAS) were defined as (1) remission off-treatment: clinical (c) SLEDAI-2K=0, without prednisone/immunosuppressants; (2) remission on-treatment: cSLEDAI-2K=0, prednisone ≤5 mg/day and/or maintenance immunosuppressants; (3) LDA-Toronto Cohort (TC): cSLEDAI-2K≤2, without prednisone/immunosuppressants; (4) modified lupus LDA state (mLLDAS): SLEDAI-2K≤4, no activity in major organs/systems, no new activity, prednisone ≤7.5 mg/day and/or maintenance immunosuppressants and (5) active: all remaining assessments.At each assessment, patients were stratified into the most stringent DAS fulfilled and the proportion of time in a DAS since cohort entry was determined. Annual DCs/ICs (2021 Canadian dollars) were based on healthcare use and lost workforce/non-workforce productivity over the preceding year.The association between the proportion of time in a DAS and annual DC/IC was examined through multivariable random-effects linear regressions.</p><p><strong>Results: </strong>1692 patients were followed a mean of 9.7 years; 49.0% of assessments were active. Remission/LDA (per 25% increase in time in a remission/LDA state vs active) were associated with lower annual DC/IC: remission off-treatment (DC -$C1372; IC -$C2507), remission on-treatment (DC -$C973; IC -$C2604,) LDA-TC (DC -$C1158) and mLLDAS (DC -$C1040). There were no cost differences between remission/LDA states.</p><p><strong>Conclusions: </strong>Our data suggest that systemic lupus erythematosus patients who achieve remission, both off and on-therapy, and reductions in disease activity incur lower costs than those experiencing persistent disease activity.</p>","PeriodicalId":8087,"journal":{"name":"Annals of the Rheumatic Diseases","volume":" ","pages":"1295-1303"},"PeriodicalIF":20.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}