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Objectives: To analyse the new evidence (2018-2022) for the management of systemic lupus erythematosus (SLE) to inform the 2023 update of the European League Against Rheumatism (EULAR) recommendations., Methods: Systematic literature reviews were performed in the Medline and the Cochrane Library databases capturing publications from 1 January 2018 through 31 December 2022, according to the EULAR standardised operating procedures. The research questions focused on five different domains, namely the benefit/harm of SLE treatments, the benefits from the attainment of remission/low disease activity, the risk/benefit from treatment tapering/withdrawal, the management of SLE with antiphospholipid syndrome and the safety of immunisations against varicella zoster virus and SARS-CoV2 infection. A Population, Intervention, Comparison and Outcome framework was used to develop search strings for each research topic., Results: We identified 439 relevant articles, the majority being observational studies of low or moderate quality. High-quality randomised controlled trials (RCTs) documented the efficacy of the type 1 interferon receptor inhibitor, anifrolumab, in non-renal SLE, and belimumab and voclosporin, a novel calcineurin inhibitor, in lupus nephritis (LN), when compared with standard of care. For the treatment of specific organ manifestations outside LN, a lack of high-quality data was documented. Multiple observational studies confirmed the beneficial effects of attaining clinical remission or low disease activity, reducing the risk for multiple adverse outcomes. Two randomised trials with some concerns regarding risk of bias found higher rates of relapse in patients who discontinued glucocorticoids (GC) or immunosuppressants in SLE and LN, respectively, yet observational cohort studies suggest that treatment withdrawal might be feasible in a subset of patients., Conclusion: Anifrolumab and belimumab achieve better disease control than standard of care in extrarenal SLE, while combination therapies with belimumab and voclosporin attained higher response rates in high-quality RCTs in LN. Remission and low disease activity are associated with favourable long-term outcomes. In patients achieving these targets, GC and immunosuppressive therapy may gradually be tapered. Cite Now., Competing Interests: Competing interests: AF reports honoraria and/or consulting fees from Lilly, Boehringer, Novartis, AbbVie, AstraZeneca, GSK, MSD, Pfizer, UCB, Amgen, Aenorasis, support for attending meetings from UCB. MK reports honoraria and/or consulting fees from GSK, participation in advisory boards from GSK, AstraZeneca, Amgen. GB reports grants from GSK, AstraZeneca, Pfizer, honoraria and/or consulting fees from Lilly, Aenorasis, Novartis, AstraZeneca, GSK, SOBI, Pfizer, participation in advisory boards from Novartis. DTB reports unrestricted investigational grants from GSK, honoraria and/or consulting fees from GSK, AstraZeneca, Pfizer. CBM declares no conflict of interest., (© European Alliance of Associations for Rheumatology, EULAR 2024. Re-use permitted under CC BY-NC-ND. No commercial re-use. No derivatives. See rights and permissions. Published by BMJ on behalf of EULAR.)

Competing Interests: Competing interests: None declared.

Objectives: To update the EULAR recommendations for the management of systemic lupus erythematosus (SLE) based on emerging new evidence., Methods: An international Task Force formed the questions for the systematic literature reviews (January 2018-December 2022), followed by formulation and finalisation of the statements after a series of meetings. A predefined voting process was applied to each overarching principle and recommendation. Levels of evidence and strengths of recommendation were assigned, and participants finally provided their level of agreement with each item., Results: The Task Force agreed on 5 overarching principles and 13 recommendations, concerning the use of hydroxychloroquine (HCQ), glucocorticoids (GC), immunosuppressive drugs (ISDs) (including methotrexate, mycophenolate, azathioprine, cyclophosphamide (CYC)), calcineurin inhibitors (CNIs, cyclosporine, tacrolimus, voclosporin) and biologics (belimumab, anifrolumab, rituximab). Advice is also provided on treatment strategies and targets of therapy, assessment of response, combination and sequential therapies, and tapering of therapy. HCQ is recommended for all patients with lupus at a target dose 5 mg/kg real body weight/day, considering the individual's risk for flares and retinal toxicity. GC are used as 'bridging therapy' during periods of disease activity; for maintenance treatment, they should be minimised to equal or less than 5 mg/day (prednisone equivalent) and, when possible, withdrawn. Prompt initiation of ISDs (methotrexate, azathioprine, mycophenolate) and/or biological agents (anifrolumab, belimumab) should be considered to control the disease and facilitate GC tapering/discontinuation. CYC and rituximab should be considered in organ-threatening and refractory disease, respectively. For active lupus nephritis, GC, mycophenolate or low-dose intravenous CYC are recommended as anchor drugs, and add-on therapy with belimumab or CNIs (voclosporin or tacrolimus) should be considered. Updated specific recommendations are also provided for cutaneous, neuropsychiatric and haematological disease, SLE-associated antiphospholipid syndrome, kidney protection, as well as preventative measures for infections, osteoporosis, cardiovascular disease., Conclusion: The updated recommendations provide consensus guidance on the management of SLE, combining evidence and expert opinion., Competing Interests: Competing interests: AF reports honoraria and/or consulting fees from Lilly, Boehringer, Novartis, Abbvie, Astra Zeneca, GSK, MSD, Pfizer, UCB, Amgen, Aenorasis, support for attending meetings from UCB. MK reports honoraria and/or consulting fees from GSK, participation in advisory boards from GSK, Astra Zeneca, Amgen. JA reports honoraria and/or consulting fees from Novartis, Astra Zeneca, support for attending meetings from Novartis, Astra-Zeneca, participation in advisory boards from Roche, Astra-Zeneca (all paid to Lupus Europe). MA reports honoraria and/or consulting fees from AbbVie, Astra Zeneca, GSK, Otsuka, Roche, support for attending meetings from Pfizer. LA reports grants from GSK, honoraria and/or consulting fees from Alexion, Alpine, Amgen, Astra Zeneca, AbbVie, Biogen, BMS, Boehringer-Ingelheim, Chugai, GSK, Grifols, Idorsia, Janssen, Kezar, Lilly, Medac, Novartis, Ono pharmaceuticals, Pfizer, Roche, UCB, support for attending meetings from Novartis, Astra-Zeneca. INB reports grants from GSK, Janssen, honoraria and/or consulting fees from Astra Zeneca, GSK, Eli Lilly, UCB, MSD, participation in advisory boards from Aurinia, Astra Zeneca, ILTOO. RC reports honoraria, consulting fees and/or participation in advisory boards from AstraZeneca, Celgene, GSK, Janssen, Lilly, Pfizer, UCB, Rubió, Werfen. AD reports honoraria and consulting fees from Otsuka, Astra Zeneca, GSK, Lilly. TD reports consulting fees from Roche, Novartis, GSK, Astra Zeneca, participation in advisory boards from GNE, Roche, Novartis. DDG reports grants from Abbvie, Amgen, BMS, Eli Lilly, Janssen, Novartis, Pfizer, UCB, consulting fees from Abbvie, Amgen, Astra Zeneca, BMS, Eli Lilly, Galapagos, Gilead, Janssen, Novartis, Pfizer, UCB. FAH reports grants from GSK, Roche. DJ reports grants from GSK, Roche, CSL Vifor, honoraria and consulting fees from Astra Zeneca, Chemocentryx, GSK, Novartis, Takeda, CSL Vifor, participation in advisory boards from Chinook, GSK, stocks in Aurinia. LK reports honoraria fees from Janssen, Takeda, support for attending meetings from Abbvie, Astra Zeneca, CSL Behring, participation in advisory boards from Swixx Pharma, Roche, Astra Zeneca. CCM reports honoraria fees from GSK, support for attending meetings from Novartis. EFM reports grants from AbbVie, Amgen, AstraZeneca, Biogen, Bristol Myers Squibb, Eli Lilly and Company, EMD Serono, Genentech, GlaxoSmithKline, Janssen, and UCB, honoraria and/or consulting fees from AbbVie, Astra Zeneca, Biogen, Bristol Myers Squibb, Eli Lilly and Company, EMD Serono, Galapagos, Genentech, Gilead, GlaxoSmithKline, IGM, Janssen, Novartis, Servier, Wolf, Zenas, support for attending meetings from Astra Zeneca, Roche. GM reports honoraria fees from GSK, Roche, Otsuka, participation in advisory boards from GSK, Otsuka. MM reports honoraria and/or consulting fees from Astra Zeneca, Eli Lilly, GSK, UCB, Janssen, participation in advisory boards from Idorsia. JM reports grants from GSK, honoraria and/or consulting fees from GSK, Astra Zeneca, Otsuka, BMS, participation in advisory boards from GSK, Astra Zeneca, BMS. GN reports honoraria and/or consulting fees from Sobi, GSK, Miltenyi Biotech, Swixx Biopharma, AbbVie, Lilly, Richter, Amgen, Roche, Kedrion, support for attending meetings from Roche, AbbVie, Sobi, Biotest. SVN reports honoraria and/or consulting fees from Astra Zeneca, Boehringer Ingelheim, Idorsia, Astellas, Novartis, GSK, Roche, support for attending meetings from Pfizer, participation in advisory boards from Biogen. IP reports grants from Aurinia, BMS, GSK, Otsuka, Roche, honoraria and/or consulting fees from Astra Zeneca, GSK, Janssen, Novartis, Otsuka, Roche, participation in advisory boards from Astra Zeneca, GSK, Novartis, Otsuka, medical writing from Astra Zeneca, GSK. JMPR reports grants from GSK, Pfizer, honoraria fees from GSK, Astra Zeneca, Lilly, support for attending meetings from GSK, Astra Zeneca, participation in advisory boards from GSK, Otsuka, Gebro, Astra Zeneca, Boehringer-Ingelheim, MSD. BAPE reports grants from Janssen, support for attending meetings from Astra Zeneca, participation in advisory boards from Astra Zeneca, GSK. MS reports grants from GSK, Astra Zeneca, honoraria and/or consulting fees from Astra Zeneca, GSK, Otsuka, UCB, participation in advisory boards from GSK. JSS reports grants from AbbVie, Astra Zeneca, Lilly, Galapagos, royalties or licenses from Elsevier, honoraria and/or consulting fees from AbbVie, Galapagos/Gilead, Novartis, BMS, Samsung, Sanofi, Chugai, R-Pharma, Lilly, MSD, Janssen, participation in advisory boards from Astra Zeneca. ES reports stocks in Astra Zeneca. YKOT reports grants from Mitsubishi-Tanabe, Eisai, Chugai, Taisho, consulting fees from Lilly, Astra Zeneca, AbbVie, Gilead, Chugai, Boehringer-Ingelheim, GSK, Eisai, Taisho, BMS, Pfizer, Taiho. MGT reports grants from Genesis, GSK, MSD, UCB, consulting fees from GSK, Lilly and UCB. CW reports grants from Versus Arthritis, British Society for Rheumatology, Lupus UK, honoraria fees from UCB, support for attending meetings from AbbVie. AT reports honoraria fees from UCB, GSK, participation in advisory boards from UCB, Galapagos. GB reports grants from GSK, Astra Zeneca, Pfizer, honoraria and/or consulting fees from Lilly, Aenorasis, Novartis, AstraZeneca, GSK, SOBI, Pfizer, participation in advisory boards from Novartis. DTB reports unrestricted investigational grants from GSK, honoraria and/or consulting fees from GSK, Astra-Zeneca, Pfizer. The remaining authors declare no conflict of interest., (© Author(s) (or their employer(s)) 2024. No commercial re-use. See rights and permissions. Published by BMJ.)

No single organ has received as much attention in systemic lupus erythematosus (SLE) as the kidneys. During the period 2019-2022, the Annals of the Rheumatic Diseases published several original papers, brief reports and letters that further elucidate the pathogenesis and advance the management of LN. A selection of representative original papers is highlighted in this review., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.)

Competing Interests: Competing interests: None declared.

Introduction: Serological markers such as anti-double stranded (ds)DNA antibodies and complement fractions C3/C4, are integral components of disease activity assessment in patients with systemic lupus erythematosus (SLE). However, it remains uncertain whether treatment should aim at restoration of serological abnormalities., Objectives: To analyze and critically appraise the literature on the prognostic impact of active lupus serology despite clinical disease quiescence., Methods: A systematic literature review was performed in PubMed and EMBASE using the PICOT(S) (population, index, comparator, outcome(s), timing, setting) system to identify studies evaluating the association of serum anti-dsDNA, C3 and C4 levels assessed at the time of clinical remission or during the disease course, against the risk for impending flares and organ damage. Risk of bias was determined by the Quality in Prognosis Studies and ROB2 tools for observational and randomized controlled studies, respectively., Results: Fifty-three studies were eligible, the majority having moderate (70.6%) or high (11.8%) risk of bias and not adequately controlling for possible confounders. C3 hypocomplementemia during stable/inactive disease was associated with increased risk (2.0 to 3.8-fold) for subsequent flare in three out of seven relevant studies. Three out of four studies reported a significant effect of C4 hypocomplementemia on flare risk, including one study in lupus nephritis (likelihood ratio-positive 12.0). An increased incidence of flares (2.0 to 2.8-fold) was reported in 11 out of 16 studies assessing the prognostic effect of high anti-dsDNA, and similarly, the majority of studies yielded significant relationships with renal flares. Six studies examined the effect of combined (rather than individual) serological activity, confirming the increased risk (2.0 to 2.7-fold) for relapses. No consistent association was found with organ damage., Conclusion: Notwithstanding the heterogeneity and risk of bias, existing evidence indicates a modest association between abnormal serology and risk for flare in patients with stable/inactive SLE. These findings provide limited support for inclusion of serology in the treat-to-target approach but rationalize to further investigate their prognostic implications especially in lupus nephritis.

Background: Quality of care is receiving increased attention in systemic lupus erythematosus (SLE). We developed quality indicators (QIs) for SLE based on the 2019 update of European League Against Rheumatism recommendations., Methods: A total of 44 candidate QIs corresponding to diagnosis, monitoring and treatment, were independently rated for validity and feasibility by 12 experts and analysed by a modified Research and Development Corporation/University of California Los Angeles model. Adherence to the final set of QIs and correlation with disease outcomes (flares, hospitalisations and organ damage) was tested in a cohort of 220 SLE patients with a median monitoring of 2 years (IQR 2-4)., Results: The panel selected a total of 18 QIs as valid and feasible. On average, SLE patients received 54% (95% CI 52.3% to 56.2%) of recommended care, with adherence ranging from 44.7% (95% CI 40.8% to 48.6%) for diagnosis-related QIs to 84.3% (95% CI 80.6% to 87.5%) for treatment-related QIs. Sustained remission or low disease activity were achieved in 26.8% (95% CI 21.1% to 33.2%). Tapering of prednisone dose to less than 7.5 mg/day was achieved in 93.6% (95% CI 88.2% to 97.0%) while 73.5% (95% CI 66.6% to 79.6%) received the recommended hydroxychloroquine dose. Higher adherence to monitoring-related QIs was associated with reduced risk for a composite adverse outcome (flare, hospitalisation or damage accrual) during the last year of observation (OR 0.97 per 1% adherence rate, 95% CI 0.96 to 0.99)., Conclusion: We developed QIs for assessing and improving the care of SLE patients. Initial real-life data suggest face validity, but a variable degree of adherence and a need for further improvement., Competing Interests: Competing interests: DTB is an Editorial Board member in the Annals of the Rheumatic Diseases. The remaining authors declare no competing interests relevant to this work., (© Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ.)

Objective: Changes in the care of patients with SLE dictate a re-evaluation of its natural history and risk factors for disease deterioration and damage accrual. We sought to decipher factors predictive of a deterioration in phenotype ('transition') in patients initially presenting with non-severe disease., Methods: Patients from the 'Attikon' cohort with disease duration ≥1 year were included. Disease at diagnosis was categorised as mild, moderate or severe, based on the British Isles Lupus Assessment Group manifestations and physician judgement. 'Transition' in severity was defined as an increase in category of severity at any time from diagnosis to last follow-up. Multivariable logistic regression was performed to identify baseline factors associated with this transition., Results: 462 patients were followed for a median (IQR) of 36 (120) months. At diagnosis, more than half (56.5%) had a mild phenotype. During disease course, transition to more severe forms was seen in 44.2%, resulting in comparable distribution among severity patterns at last follow-up (mild 28.4%, moderate 33.1%, severe 38.5%). Neuropsychiatric involvement at onset (OR 6.33, 95% CI 1.22 to 32.67), male sex (OR 4.53, 95% CI 1.23 to 16.60) and longer disease duration (OR 1.09 per 1 year, 95% CI 1.04 to 1.14) were independently associated with transition from mild or moderate to severe disease. Patients with disease duration ≥3 years who progressed to more severe disease had more than 20-fold increased risk to accrue irreversible damage., Conclusion: Almost half of patients with initially non-severe disease progress to more severe forms of SLE, especially men and patients with positive anti-double-stranded DNA or neuropsychiatric involvement at onset. These data may have implications for the management of milder forms of lupus., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Systemic Lupus Erythematosus (SLE) is associated with increased risk for accelerated atherosclerosis and cardiovascular (CV) events including coronary heart disease, cerebrovascular and peripheral artery disease. CV events occur both early and late during the disease course, with younger patients being at much higher risk than age-matched counterparts. The risk cannot be fully accounted for by the increased prevalence of traditional atherosclerotic factors and may be due to pathophysiologic intermediates such as type I interferons and other inflammatory cytokines, oxidative stress, activated granulocytes and production of extracellular chromatin traps, antiphospholipid and other autoantibodies causing dysfunction of lipoproteins, altogether resulting in endothelial injury and pro-atherogenic dyslipidaemia. These mechanisms may be further aggravated by chronic intake of prednisone (even at doses <7.5 mg/day), whereas immunomodulatory drugs, especially hydroxychloroquine, may exert antiatherogenic properties. To date, there is a paucity of randomized studies regarding the effectiveness of preventative strategies and pharmacological interventions specifically in patients with SLE. Nevertheless, both the European League Against Rheumatism recommendations and extrapolated evidence from the general population emphasize that SLE patients should undergo regular monitoring for atherosclerotic risk factors and calculation of the 10-year CV risk. Risk stratification should include diseaserelated factors and accordingly, general (lifestyle modifications/smoking cessation, antihypertensive and statin treatment, low-dose aspirin in selected cases) and SLE-specific (control of disease activity, minimization of glucocorticoids, use of hydroxychloroquine) preventive measures be applied as appropriate. Further studies will be required regarding the use of non-invasive tools and biomarkers for CV assessment and of risk-lowering strategies tailored to SLE., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)

Our objective was to update the EULAR recommendations for the management of systemic lupus erythematosus (SLE), based on emerging new evidence. We performed a systematic literature review (01/2007-12/2017), followed by modified Delphi method, to form questions, elicit expert opinions and reach consensus. Treatment in SLE aims at remission or low disease activity and prevention of flares. Hydroxychloroquine is recommended in all patients with lupus, at a dose not exceeding 5 mg/kg real body weight. During chronic maintenance treatment, glucocorticoids (GC) should be minimised to less than 7.5 mg/day (prednisone equivalent) and, when possible, withdrawn. Appropriate initiation of immunomodulatory agents (methotrexate, azathioprine, mycophenolate) can expedite the tapering/discontinuation of GC. In persistently active or flaring extrarenal disease, add-on belimumab should be considered; rituximab (RTX) may be considered in organ-threatening, refractory disease. Updated specific recommendations are also provided for cutaneous, neuropsychiatric, haematological and renal disease. Patients with SLE should be assessed for their antiphospholipid antibody status, infectious and cardiovascular diseases risk profile and preventative strategies be tailored accordingly. The updated recommendations provide physicians and patients with updated consensus guidance on the management of SLE, combining evidence-base and expert-opinion., Competing Interests: Competing interests: AF reports personal fees from GSK, Abbvie, Amgen, Enorasis and Genesis Pharma, outside the submitted work. MA reports fees from advisory boards from Novartis, Pfizer, Roche. IB reports personal fees from consultant for GSK, outside the submitted work. JNB reports grants from GSK, personal fees from GSK, personal fees from Abbvie, personal fees from UCB, personal fees from Enorasis, grants from Pfizer, outside the submitted work. RC reports personal fees from GSK, personal fees from Astra Zeneca, personal fees from Rubió, outside the submitted work. DJ reports personal fees from Astra-Zeneca, Aurinia, Boehringer-Ingeleheim, Celgene, BMS, Chemocentryx, grants and personal fees from GSK, from null, outside the submitted work. AK reports grants from Biogen, grants from Galderma, grants from GlaxoSmithKline, grants from Leo Pharma, personal fees from La Roche Posay, outside the submitted work. MM reports personal fees from GSK, Lilly and UCB. MS reports grants from GSK, UCB, Abbvie, outside the submitted work. JSS reports grants from AbbVie, Astra-Zeneca, Janssen, Lilly, MSD, Novartis, Pfizer and Roche, and personal fees from AbbVie, Amgen, Astra-Zeneca, Astro, BMS, Celgene, Celltrion, Chugai, Gilead, ILTOO, Janssen, Lilly, MSD, Novartis-Sandoz, Pfizer, Roche, Samsung, Sanofi and UCB, during the conduct of the study. AT reports personal fees from UCB, Pfizer, Abbvie, BMS, Sanofi, Roche, GSK, Alpha Sigma, Lilly, Jannsen, Cellgene and Novartis, outside the submitted work. RvV reports grants from BMS, GSK, Lilly, Pfizer, UCB Pharma, personal fees from AbbVie, AstraZeneca, Biotest, Celgene, GSK, Janssen, Lilly, Novartis, Pfizer, Servier, UCB, outside the submitted work. JW reports grants from GSK, grants from Incyte, personal fees from Biogen, personal fees from Leo, other from Novartis, during the conduct of the study. GB reports grants from GSK, Pfizer and personal fees from GSK, Abbvie, UCB and Enorasis, outside the submitted work. DTB reports unrestricted grant support/advisory board fees from Abbvie, BMS, Celgene, Enorasis, GSK, Pfizer, Novartis, UCB, Lilly, all deposited to the research account of the National and Kapodistrian University of Athens., (© Author(s) (or their employer(s)) 2019. No commercial re-use. See rights and permissions. Published by BMJ.)