2019 update of the EULAR recommendations for the management of systemic lupus erythematosus

The cost of flares among patients with systemic lupus erythematosus with and without lupus nephritis in the United States

OBJECTIVE

Assess healthcare costs associated with systemic lupus erythematosus (SLE) flares among patients with and without lupus nephritis (LN).

METHODS

This retrospective cohort study used medical and pharmacy claims data from the United States-based Optum Clinformatics database to identify adults with SLE between 1 January 2016, and 31 December 2018. Index was the date of a patient's earliest SLE diagnosis claim during the identification period. Patients were categorized based on ICD-9/-10 diagnosis codes into one of two cohorts: SLE with LN (LN) and SLE without LN (non-LN). Baseline characteristics were assessed in the 12 months preceding index (baseline period). The presence, severity, and healthcare costs (in 2019 US dollars) of flares were determined in the 12 months following index (follow-up period).

RESULTS

Overall, 11,663 patients with SLE were included (LN, n = 2916; non-LN, n = 8747). During the baseline period, a greater proportion of patients in the LN cohort versus non-LN cohort had a Charlson Comorbidity Index score ≥4 (72.5% vs 13.7%) and inpatient stays (41.0% vs 17.0%). A total of 12,190 flares were identified during the follow-up period (LN, 3494; non-LN, 8696). A greater proportion of flares experienced by patients with LN versus those without LN were moderate (61.2% vs 53.6%) and severe (10.6% vs 5.4%). The mean (standard deviation [SD]) number of moderate and severe flares per patient was greater among the LN cohort than the non-LN cohort (moderate: LN, 1.8 [1.2] and non-LN, 1.4 [1.2]; severe: LN, 0.2 [0.6] and non-LN, 0.1 [0.3]). The mean (SD) total healthcare costs associated with SLE flares of any severity were greater for patients with LN (LN, $5842 [9604]; non-LN, $2600 [4249]). The mean (SD) cost per flare increased with severity (mild: LN, $2753 [4640] and non-LN, $1606 [2710]; moderate: LN, $4561 [7156] and non-LN, $2587 [3720]; severe: LN, $29,148 [27,273] and non-LN, $14,829 [19,533]).

CONCLUSIONS

Patients with SLE with LN have greater healthcare costs than those without LN. Flares among patients with LN were more frequent, severe, and costly than among patients without LN. This highlights the need for treatments that prevent or reduce flares among patients with SLE, both with and without LN.

Dilemma of belimumab therapy (dis)continuation during pregnancy: Results of a retrospective study in eudravigilance

INTRODUCTION

The first biologic authorized for systemic lupus erythematosus (SLE) up to this date, belimumab, is currently not recommended for use during pregnancy due to lack of data. Provided that the health of the child begins with the health of the mother, pregnant patients face the dilemma of cessation or continuation of belimumab. If belimumab is stopped, there will be a risk of SLE flare and its consequences for the mother and the foetus. Continuation is also not optimal because of the lack of knowledge on safety for use during pregnancy.

AIM

To compare the reported foetal outcomes in SLE patients who stopped scheduled belimumab within the first trimester (group A) and those who continued scheduled belimumab during the first trimester or thereafter (group B).

MATERIAL AND METHOD

All belimumab-exposed pregnancy-related reports were extracted from the EudraVigilance (EV) database until March 11th, 2021. After case review, repeated cases, uninformative reports, non-medical elective abortions and foetal chromosomal abnormalities were excluded. Included pregnancies were divided into two groups (group A and B, as described above). Foetal outcomes were divided into live birth or foetal death (due to miscarriage or stillbirth) and were compared between both groups. Furthermore, neonatal outcomes, such as reporting rates of preterm birth, low birth weight and major congenital malformations were compared.

RESULTS

No statistical difference in foetal death was observed between group A and B (reported numbers (%) = 32 (46.4) and 11 (52.4), respectively). Odds ratio (OR, [95% Confidence Intervals (CIs)]) of foetal death in group B compared to group A was 1.27 [0.48, 3.32]. Reporting rates of preterm birth and low birth weight were higher - though not statistically different - in group A.

CONCLUSION

The positive results of our study are supportive for the continuation of belimumab during pregnancy. Since the analysis is based on spontaneous reports/retrospective data, additional studies are needed to confirm the results.

Hydroxychloroquine Dose and Risk for Incident Retinopathy : A Cohort Study

BACKGROUND

Hydroxychloroquine is recommended for all patients with systemic lupus erythematosus and is often used for other inflammatory conditions, but a critical long-term adverse effect is vision-threatening retinopathy.

OBJECTIVE

To characterize the long-term risk for incident hydroxychloroquine retinopathy and examine the degree to which average hydroxychloroquine dose within the first 5 years of treatment predicts this risk.

DESIGN

Cohort study.

SETTING

U.S. integrated health network.

PARTICIPANTS

All patients aged 18 years or older who received hydroxychloroquine for 5 or more years between 2004 and 2020 and had guideline-recommended serial retinopathy screening.

MEASUREMENTS

Hydroxychloroquine dose was assessed from pharmacy dispensing records. Incident hydroxychloroquine retinopathy was assessed by central adjudication of spectral domain optical coherence tomography with severity assessment (mild, moderate, or severe). Risk for hydroxychloroquine retinopathy was estimated over 15 years of use according to hydroxychloroquine weight-based dose (>6, 5 to 6, or ≤5 mg/kg per day) using the Kaplan-Meier estimator.

RESULTS

Among 3325 patients in the primary study population, 81 developed hydroxychloroquine retinopathy (56 mild, 17 moderate, and 8 severe), with overall cumulative incidences of 2.5% and 8.6% at 10 and 15 years, respectively. The cumulative incidences of retinopathy at 15 years were 21.6% for higher than 6 mg/kg per day, 11.4% for 5 to 6 mg/kg per day, and 2.7% for 5 mg/kg per day or lower. The corresponding risks for moderate to severe retinopathy at 15 years were 5.9%, 2.4%, and 1.1%, respectively.

LIMITATION

Possible misclassifications of dose due to nonadherence to filled prescriptions.

CONCLUSION

In this large, contemporary cohort with active surveillance retinopathy screening, the overall risk for hydroxychloroquine retinopathy was 8.6% after 15 years, and most cases were mild. Higher hydroxychloroquine dose was associated with progressively greater risk for incident retinopathy.

PRIMARY FUNDING SOURCE

National Institutes of Health.

Relapses are common in severe hematologic systemic lupus erythematosus and may be prevented by early institution of immunosuppressive agents: Α real-life single-center study

BACKGROUND

Hematologic manifestations are common in systemic lupus erythematosus (SLE), either at initial presentation or during the course of the disease, but data regarding their natural history are scarce.

OBJECTIVE

To describe the characteristics, treatments, and outcomes of severe hematological manifestations in a large cohort of lupus patients.

METHODS

Retrospective cohort study of patients in the "Attikon" lupus cohort who had a history of a severe hematologic manifestation, defined as autoimmune hemolytic anemia (AIHA) with hemoglobin < 8 g/dL, thrombocytopenia with platelet count < 30,000/mm³, Evans syndrome with hemoglobin < 8 g/dL, and/or platelet count < 30,000/mm³, neutropenia with < 500 neutrophils/mm³, thrombotic microangiopathy (TMA)/thrombotic thrombocytopenic purpura (TTP)-like syndrome, or macrophage activation syndrome (MAS). Demographic and clinical characteristics, treatments, and outcomes were recorded.

RESULTS

From over 300 patients with hematologic manifestations, 41 qualified as severe (70.7% women, mean [SD] age at SLE diagnosis 42.6 [18.0] years). Hematologic manifestations preceded SLE diagnosis in 13 patients (31.7%), was concomitant to SLE diagnosis in 16 patients (39%), and occurred during the course of the disease in 12 (29.3%) patients, with a mean (SD) disease duration of 8.7 (5.5) years. Thrombocytopenia was the most common severe hematological manifestation (56.1%), followed by AIHA (17.1%) and TTP-like syndrome (12.2%). For initial treatment, all patients were treated with glucocorticoids (GC), while rituximab and cyclophosphamide were the most frequently used immunosuppressive agents. Following initial treatment, relapse occurred in 22 patients (53.7%). Compared to patients that did not relapse, those that relapsed had less often received concomitant immunosuppressive agents following treatment of initial episode (n = 17/23, 73.9% vs 5/17, 29.4%, p = 0.005).

CONCLUSION

Severe hematologic disease in SLE has a high risk of relapse, which may be mitigated by the early institution of GC-sparing agents.

High-sensitivity cardiac troponin I is a biomarker for increased arterial stiffness in systemic lupus erythematous women with normal kidney function

Cardiovascular disease (CVD) is a main cause of death in patients with systemic lupus erythematous (SLE). Algorithms for cardiovascular risk stratification in general population underestimate the risk for CVD in SLE. Our study aimed to determine whether serum high-sensitivity cardiac troponin I (hs-cTnI) might help to identify SLE patients with subclinical atherosclerosis. Arterial stiffness was assessed measuring the carotid-femoral pulse wave velocity (PWV) in 68 SLE women with a normal or almost normal kidney function and in 71 controls of similar characteristics. None of the participants had a history of an overt CVD. Serum hs-cTnI level was measured using the chemiluminescence method. Factors associated with an increased PWV (iPWV) were identified and multivariate analysis was performed. When detectable, patients tended to have had higher hs-cTnI levels than controls [2.9 (2.3-4.0) vs 2.4 (2.2-4.1); p = 0.098] and were more likely to have detectable hs-cTnI [50% vs 28%, odds ratio (OR) 7.0; 95% confidence interval (CI) 0.008-0.013]. Also, patients with iPWV were more likely to have detectable hs-cTnI than those with normal PWV (OR 6.4; 95% CI 0.019-0.026). In the multivariate analysis, the age at SLE diagnosis (OR 1.24; 95% CI 1.04-1.48), systolic blood pressure (OR 1.28; 95% CI 1.10-1.48) and detectable hs-cTnI level (OR 2.04; 95% CI 1.18-3.50) were independently associated with an iPWV. The negative predictive value of having an iPWV with undetectable hs-cTnI levels was 88%. Hs-cTnI may be a useful biomarker for the identification of SLE patients with iPWV as a surrogated marker of subclinical atherosclerosis. Specifically targeted prospective studies are needed to confirm this hypothesis.

A 5-Year Retrospective, Observational Study Assessing Rheumatoid Arthritis Disease Outcome Measures to Characterize Systemic Lupus Erythematosus Burden in the USA

INTRODUCTION

We evaluated the use of rheumatoid arthritis (RA) disease measures in patients with systemic lupus erythematosus (SLE) in a US community-based rheumatology physician network over 5 years.

METHODS

This retrospective, observational cohort study (GSK Study 213818) of patients with SLE utilized electronic medical records (01 January 2010-31 December 2019) from the United Rheumatology Normalized Integrated Community Evidence database. The index was the date of first SLE diagnosis recorded in the database; the observation period was 5 years post-index. RA disease measures evaluated were: Pain Index, Multi-Dimensional Health Assessment Questionnaire (MD-HAQ), Patient Global Assessment (PtGA), Physician Global Assessment (PGA), Swollen Joint Count (SJC), Tender Joint Count (TJC), Routine Assessment of Patient Index Data 3 (RAPID3), Clinical Disease Activity Index (CDAI), Simplified Disease Activity Index (SDAI), and Disease Activity Score 28 (DAS-28). The number of patients with measures utilized, the score on each measure, and proportion of patients per disease activity category were assessed.

RESULTS

Overall, 5990 patients with SLE were included. The most frequently used measures were Pain Index, SJC, TJC, MD-HAQ, PtGA, RAPID3, and PGA (cumulative use over Years 1-5: 23.9-71.3%). For all measures, frequency of use was lowest in Year 1, followed by a general increase from Year 1 to Year 5. Scores remained relatively stable for most measures, and the proportion of patients in remission or with low/moderate disease activity per RAPID3 increased.

CONCLUSION

RA disease measure utilization in SLE was generally infrequent but increased over time. Pain Index and MD-HAQ were the most commonly applied cumulatively across 5 years of follow-up. The rationale for the increased use of these measures in SLE over time requires further exploration. In the absence of a clinically applicable SLE-specific measure, the use of RA measures, for example in conjunction with SLE measures, may provide an alternative approach for measuring disease activity, representing an opportunity to improve patient outcomes.

Systemic Lupus Erythematosus: New Diagnostic and Therapeutic Approaches

Systemic lupus erythematosus (SLE) is a devastating autoimmune disease that can result in substantial morbidity and mortality. Diagnosis and treatment of SLE are clinical challenges. Patient presentation and response to therapy are heterogeneous because of the complex immune dysregulation that results in SLE disease pathogenesis. An intricate interplay between genetic risk and skewing of adaptive and innate immune system responses leads to overproduction of type I interferons and other cytokines, complement activation, immune-complex deposition, and ultimately inflammation and tissue damage. Here, we review the classification criteria as well as standard and emerging diagnostic tools available to identify patients with SLE. We then focus on medical management, including novel therapeutics, nonpharmacologic interventions, and comorbidity management.

Patient participation in defining best-practice rheumatology service provision in Aotearoa New Zealand: a qualitative study with service consumers

BACKGROUND

Aotearoa New Zealand (AoNZ) has no agreed models for rheumatology service provision in government-funded health care. We aimed to describe what people with inflammatory rheumatic diseases who have used rheumatology services view as being important in those services, and map these views to previously collated statements describing best practice components of rheumatology services from international recommendations. If these statements did not capture all service aspects that people with inflammatory rheumatic diseases considered important, we aimed to co-create new statements with our patient-participants.

METHODS

We conducted one focus group and an interview with people with inflammatory rheumatic disease who had used a government-funded rheumatology service in the previous 5 years (patient-participants) and analysed data using thematic analysis. The research team mapped subthemes to previously collated best practice recommendations that had been included in a Delphi consensus exercise with rheumatologists in AoNZ and proposed new statements, based on patient-participant data. Patient-participant feedback on thematic analysis and the new statements led to a refining of statements. A patient-partner in the research team informed research design and data analysis.

RESULTS

Patient-participants viewed it as highly valuable for rheumatology services to respect and value their experiences as people and patients, and those of their whānau (Māori word for family). They expected rheumatology services to provide the right care, at the right time. Many of the subthemes mapped to the best-practice statements. However, three new principles and three new statements were developed and refined by patient-participants. The three principles addressed valuing individuals, and their whānau (family) and their experiences, and providing a patient-focused health system that supports patient participation in decision-making and self-management, and patient education. New statements related to having a specific rheumatologist and other staff for comprehensive care, having adequate nurse staffing, and active provision of outside services and support.

CONCLUSION

It was important to patients that rheumatology services demonstrated that patients and their whānau (family) were valued. The inclusion of people with rheumatic diseases who are users of rheumatology services in service development can provide valuable insights to inform how services should be delivered.

Impact of Belimumab on Patient-Reported Outcomes in Systemic Lupus Erythematosus: Insights from Clinical Trials and Real-World Evidence

Systemic lupus erythematosus (SLE) is a chronic, autoimmune disease, characterised by a relapsing-remitting pattern of inflammatory activity, with each relapse contributing to irreversible end-organ damage with detrimental effects on patients' course, adding up to morbidity burden and shortening life-length. Along with several other demographic, socioeconomic, and life-style factors, high inflammatory activity and accrued organ damage have been coupled with adverse health-related quality of life (HRQoL) within physical, mental, and psychosocial aspects. The management of SLE has improved substantially during the last decades, owing to a technological explosion that has advanced drug development towards more targeted options. Being the first drug to be approved for SLE in more than half a century and the first in history biological agent for SLE, the introduction in 2011 of the monoclonal antibody belimumab that specifically binds to the soluble counterpart of B cell activating factor (BAFF) was a breakthrough in SLE drug development. The efficacy and favourable safety profile of belimumab has been demonstrated across several clinical trials and observational studies. Herein, we reviewed the literature and provide a summary on the effects of belimumab on SLE patients' HRQoL based on 23 studies. Belimumab has been shown to induce clinically important improvements in physical aspects of HRQoL and in fatigue, the latter being a common and major complaint within the SLE population. People with SLE overall benefit more from belimumab within physical compared with mental aspects of HRQoL. However, despite improvements of clinical and immunological features upon therapy with belimumab, HRQoL perception remains unsatisfactory for a substantial percentage of the patients. Finally, our review made apparent an urgent need for optimisation of the use of patient-reported outcome measures, both in research and clinical practice.

Lupus pernio vs. lupic perniosis: A case report

Abstract Introduction: Systemic lupus erythematosus (SLE) is an autoimmune disease that is difficult to diagnose due to the wide array of signs and symptoms it displays that may be associated to multiple clinical conditions,  including perniosis (a rare inflammatory condition), lupus pernio (a manifestation of sarcoidosis), and lupus perniosis (a form of SLE), which can be easily mistaken. Case description: A 29-year-old Colombian mestizo woman with no family history of autoimmune, inflammatory or cutaneous diseases was diagnosed with SLE after ruling out several differential diagnoses. Although the patient presented with features of lupus pernioticus (lupus perniosis), it was established that she had lupus pernio, a type of sarcoidosis. The patient was given the indicated treatment, which led to an improvement in her quality of life. Conclusion: Based on the epidemiology, clinical history and histopathologic findings, it was possible to establish that the patient presented with lupus perniosis and not lupus pernio. In that regard, considering that these three conditions (perniosis, lupus pernio and lupic perniosis) can be easily confused, the present case highlights the importance of a thorough clinical evaluation and precise use of diagnostic terms, because these are three different conditions despite their similar names.

Accumulation of Fat Not Responsible for Femoral Head Necrosis, Revealed by Single-Cell RNA Sequencing: A Preliminary Study

The etiology of osteonecrosis of the femoral head (ONFH) is not yet fully understood. However, ONFH is a common disease with high morbidity, and approximately one-third of cases are caused by glucocorticoids. We performed single-cell RNA sequencing of bone marrow to explore the effect of glucocorticoid on ONFH. Bone marrow samples of the proximal femur were extracted from four participants during total hip arthroplasty, including two participants diagnosed with ONFH for systemic lupus erythematosus (SLE) treated with glucocorticoids (the case group) and two participants with femoral neck fracture (the control group). Unbiased transcriptome-wide single-cell RNA sequencing analysis and computational analyses were performed. Seventeen molecularly defined cell types were identified in the studied samples, including significantly dysregulated neutrophils and B cells in the case group. Additionally, fatty acid synthesis and aerobic oxidation were repressed, while fatty acid beta-oxidation was enhanced. Our results also preliminarily clarified the roles of the inflammatory response, substance metabolism, vascular injury, angiogenesis, cell proliferation, apoptosis, and dysregulated coagulation and fibrinolysis in glucocorticoid-induced ONFH. Notably, we list the pathways that were markedly altered in glucocorticoid-induced ONFH with SLE compared with femoral head fracture, as well as their common genes, which are potential early therapeutic targets. Our results provide new insights into the mechanism of glucocorticoid-induced ONFH and present potential clues for effective and functional manipulation of human glucocorticoid-induced ONFH, which could improve patient outcomes.

Global excellence in rheumatology in Latin America: The case of systemic lupus erythematosus

Systemic lupus erythematosus (SLE) affects more severely non-White populations, due to their genetic background and sociodemographic characteristics. Several studies have evaluated Latin American SLE patients to determine their genetic and clinical characteristics as well as prognostic factors; these studies have not only allowed the development of treatment guidelines aimed at the region but also to support regional and global projects. Additionally, educational activities in Spanish and Portuguese have been started to reduce our patients' health illiteracy. Despite the relatively low research output from Latin American countries, we consider that studies from our region coupled with the networks developed to increase our capabilities, could be a model for other rare autoimmune diseases.

Hydroxychloroquine daily dose, hydroxychloroquine blood levels and the risk of flares in patients with systemic lupus erythematosus

BACKGROUND

Recent guidelines for SLE recommend using a hydroxychloroquine (HCQ) dose less than 5.0 mg/kg/day to reduce the risk of retinopathy. To determine if this dose reduction would have an impact on the clinical course of SLE, we compared flare incidence in a cohort of patients with SLE treated with two different oral HCQ dosages (≤5 mg/kg/day or >5 mg/kg/day). As a secondary analysis, we compared HCQ blood levels between the two different oral dosages, and evaluated the frequency of non-adherence in patients with SLE treated with HCQ.

METHODS

We identified a cohort of patients with SLE taking HCQ for at least 6 months and followed for 24 months. At study entry and 6 months later, a blood venous sample was taken to measure HCQ blood levels by liquid chromatography. Incidence of new SLE flares after recruitment was put in relation to daily HCQ dose and mean HCQ blood levels. Cox regression analysis served to identify factors associated with SLE flares.

RESULTS

83 patients were enrolled. We observed 11 (16%) flares that developed in mean 14.8 months of follow-up. The difference in terms of flare rate and mean HCQ blood levels between the two oral dosages was not statistically significant. There was a trend (p=0.08) for high HCQ dose being associated with a lower flare rate. At Cox analysis, higher HCQ blood levels and older age at baseline were protective against flare occurrence, while concomitant immunosuppressant therapy showed significant positive association. HCQ blood levels did not correlate with prescribed HCQ dose.

CONCLUSION

Patients with low oral HCQ dosage tend to have more flares, although the difference was not statistically significant. Higher HCQ blood levels were protective against flare occurrence. The risks and benefits must be balanced in choosing HCQ dose.

Integrative Bioinformatics Analysis Identifies DDX60 as a Potential Biomarker for Systemic Lupus Erythematosus

Background

Systemic lupus erythematosus (SLE) is an autoimmune disease with strong heterogeneity, leading to variable clinical symptoms, which makes diagnosis and activity evaluation difficult.

Methods

The original dataset of GSE88884 was analyzed to screen differentially expressed genes (DEGs) of SLE and the correlation between DEGs and clinical parameters (SLEDAI, anti-dsDNA, C3, and C4). The result was validated by microarray GSE121239 and SLE patients with RT-qPCR. Next, receiver operator characteristic (ROC) analysis, correlation analysis, and ordinal logistic regression were applied, respectively, to evaluate the capability of diagnosis and prediction of the candidate biomarker. Subsequently, the biological functions of the candidate biomarker were investigated through KEGG and GO enrichment, protein-protein interaction network, and the correlation matrix.

Results

A total of 283 DEGs were screened, and seven of them were overlapped with SLE-related genes. DDX60 was identified as the candidate biomarker. Analyses of GSE88884, GSE121239, and SLE patients with RT-qPCR indicated that DDX60 expression level is significantly higher in patients with high disease activity. ROC analysis and the area under the ROC curve (AUC = 0.8818) suggested that DDX60 has good diagnostic performance. DDX60 expression level was positively correlated with SLEDAI scores (r = 0.24). For every 1-unit increase in DDX60 expression value, the odds of a higher stage of activity of SLE disease are multiplied by 1.47. The function of DDX60 mainly focuses on IFN-I-induced antiviral activities, RIG-I signaling, and innate immune. Moreover, DDX60 plays a synergistic role with DDX58, IFIH1, OASL, IFIT1, and other related genes in the SLE pathogenesis. Conclusions. DDX60 is differently expressed in SLE, and it is significantly related to both serological indicators and the disease activity of SLE. We suggested that DDX60 might be a potential biomarker for SLE diagnosis and management.

Clinical aspects of cutaneous lupus erythematosus

Lupus erythematosus (LE) is an autoimmune inflammatory disease with a wide clinical spectrum from life-threatening multi-organ inflammation in systemic lupus erythematosus (SLE) to limited skin disease in cutaneous LE (CLE). The etiology of CLE is still not fully understood but a multifactorial genesis with genetic predisposition and certain environmental factors as triggers for the development are generally accepted features. Lesions can be induced and aggravated by UV-irradiation and smoking is linked to more severe forms of skin disease and to co-morbidity. Drugs, including many common medicines like antihypertensives, are known to induce subacute CLE (SCLE). The mechanisms involved have recently been shown to be part of the IFN-I pathway and new, specific treatments are currently in clinical trials. CLE is currently classified in subtypes based on clinical presentation and duration into acute CLE (ACLE), SCLE, and chronic CLE (CCLE). Distinct subtypes can be seen in individual patients or coexist within the same patient. Because of the confluent and overlapping picture between these subsets, serology, and histopathology constitute an important role guiding towards correct diagnose and there is ongoing work to update the classification. The Cutaneous Lupus Area Severity Index (CLASI) is a validated tool to measure activity and damage both in clinical trials but also for the clinician to evaluate treatment and follow the course of the disease among patients. CLE is known to have substantial impact on the life of those affected. Several tools have been proposed to measure QoL in these patients, currently Skindex-29 is probably the most used. Patient education is an important part of prevention of flares, including UV-protection and smoking cessation. First-line treatment includes topical corticosteroids as well as topical calcineurin inhibitors with the addition of systemic treatment with antimalarials in more severe or therapy resistant cases. Treatment specifically targeting CLE has been lacking, however novel potential therapies are in later phase clinical trials. In this review we aim to describe the different subsets of the cutaneous form in LE with focus on clinical aspects.

Effect of Hydroxychloroquine on Lupus Activity, Preeclampsia and Intrauterine Growth Restriction in Pregnant Women with Systemic Lupus Erythematosus and/or Antiphospholipid Syndrome: A Systematic Review and Meta-Analysis

BACKGROUND

Hydroxychloroquine (HCQ) has been used in the treatment of systematic lupus erythematosus (SLE) and antiphospholipid syndrome (APS), but its effect on lupus activity during pregnancy, preeclampsia and intrauterine growth restriction (IUGR) remains unclear.

METHODS

PubMed, Embase and Cochrane databases were searched before 11 September 2022 for randomized clinical trials (RCT) or observational studies involving additional HCQ treatment and pregnant women diagnosed as having SLE and/or APS/positive antiphospholipid antibodies (aPLs). Risks of high lupus activity, preeclampsia and IUGR were explored.

RESULTS

One RCT and 13 cohort studies were included. A total of 1764 pregnancies were included in the pooled meta-analysis (709 in the HCQ group vs. 1055 in the control group). After the additional use of HCQ, the risk of high lupus activity decreased (RR: 0.74, 95% CI: 0.57-0.97, p = 0.03). For preeclampsia, the total incidence decreased (RR: 0.54, 95% CI: 0.37-0.78, p = 0.001). The subgroup analysis showed statistical significance in the SLE subgroup (RR: 0.51, 95% CI: 0.34-0.78, p = 0.002) but not in the APS/aPLs subgroup (RR: 0.66, 95% CI: 0.29-1.54, p = 0.34). For IUGR, the decrease in incidence was not statistically significant (RR: 0.80, 95% CI: 0.47-1.35, p = 0.46), neither in the SLE subgroup (RR: 0.74, 95% CI: 0.40-1.36, p = 0.33) nor in the APS/aPLs subgroup (RR: 1.26, 95% CI: 0.34-4.61, p = 0.73).

CONCLUSION

The additional use of HCQ may decrease the risk of high lupus activity during pregnancy and the incidence of preeclampsia for SLE patients, but the results do not support that using HCQ decreases the incidence of preeclampsia for APS/aPLs patients or reduces IUGR risk for SLE and/or APS/aPLs patients.

The development of immunosorbents for the treatment of systemic lupus erythematosus via hemoperfusion

Systemic lupus erythematosus (SLE) is an autoimmune disease (AID) that involves multiple organ systems and is characterized by elevated levels of autoantibodies (ANA) and immune complexes. The immunoadsorption technique uses an extracorporeal clearance process to remove pathogenic toxins from patients' blood and alleviate disease symptoms. An immunosorbent is a key component of the immunoadsorption system that determines therapeutic efficacy and safety. Immunosorbents are prepared by immobilizing antibodies, antigens, or ligands with specific physicochemical affinities on a supporting matrix. Immunosorbents and pathogenic toxins bind via affinity adsorption, which involves electrostatic interactions, hydrogen bonds, hydrophobic interactions, and van der Waals forces. Immunosorbents are classified on the basis of their interaction mechanism with toxins into three categories: non-selective, semi-selective, and highly selective. This review aimed to summarize the current status of various commercial immunosorbents that are used to treat SLE. Moreover, recent developments in immunosorbents have heightened the need for a brief discussion about specific ligands and a supporting matrix.

Clinical response trajectories and drug persistence in systemic lupus erythematosus patients on belimumab treatment: A real-life, multicentre observational study

Objective

To obtain real-world data on outcomes of belimumab treatment and respective prognostic factors in patients with systemic lupus erythematosus (SLE).

Methods

Observational study of 188 active SLE patients (median disease duration 6.2 years, two previous immunosuppressive/biological agents) treated with belimumab, who were monitored for SLEDAI-2K, Physician Global Assessment (PGA), LLDAS (lupus low disease activity state), remission (DORIS/Padua definitions), SELENA-SLEDAI Flare Index, SLICC/ACR damage index and treatment discontinuations. Group-based disease activity trajectories were modelled followed by multinomial regression for predictive variables. Drug survival was analysed by Cox-regression.

Results

At 6, 12 and 24 months, LLDAS was attained by 36.2%, 36.7% and 33.5%, DORIS-remission by 12.3%, 11.6% and 17.8%, and Padua-remission by 21.3%, 17.9% and 29.0%, respectively (attrition-corrected). Trajectory analysis of activity indices classified patients into complete (25.5%), partial (42.0%) and non-responder (32.4%) groups, which were predicted by baseline PGA, inflammatory rash, leukopenia and prior use of mycophenolate. During median follow-up of 15 months, efficacy-related discontinuations occurred in 31.4% of the cohort, especially in patients with higher baseline PGA (hazard ratio [HR] 2.78 per 1-unit; 95% CI 1.32-5.85). Conversely, PGA improvement at 3 months predicted longer drug retention (HR 0.57; 95% CI 0.33-0.97). Use of hydroxychloroquine was associated with lower risk for safety-related drug discontinuation (HR 0.33; 95% CI 0.13-0.85). Although severe flares were reduced, flares were not uncommon (58.0%) and contributed to treatment stops (odds ratio [OR] 1.73 per major flare; 95% CI 1.09-2.75) and damage accrual (OR 1.83 per mild/moderate flare; 95% CI 1.15-2.93).

Conclusions

In a real-life setting with predominant long-standing SLE, belimumab was effective in the majority of patients, facilitating the achievement of therapeutic targets. Monitoring PGA helps to identify patients who will likely benefit and stay on the treatment. Vigilance is required for the prevention and management of flares while on belimumab.

The efficacy and safety of anifrolumab in Japanese patients with systemic lupus erythematosus: TULIP-2 subanalysis

OBJECTIVES

Evaluate the efficacy and safety of anifrolumab in the subpopulation of Japanese patients with systemic lupus erythematosus (SLE) in phase 3 TULIP-2 trial.

METHODS

TULIP-2 was a 52-week randomized placebo-controlled trial (N = 362) that evaluated efficacy and safety of anifrolumab 300 mg IV every 4 weeks vs. placebo in patients with moderate to severe SLE who were receiving standard therapy. We performed a post hoc analysis of the primary and key secondary endpoints, and safety, of TULIP-2 in the Japanese subpopulation.

RESULTS

In the Japanese subpopulation (anifrolumab, n = 24; placebo, n = 19), the proportion of patients who achieved a British Isles Lupus Assessment Group-based Composite Lupus Assessment response at Week 52 (primary endpoint) was greater in the anifrolumab group vs. placebo [50.0% (12/24) vs. 15.8% (3/19); treatment difference: 34.2%, 95% confidence interval 6.9, 61.5; nominal p = .014]. Improvement in skin activity and flare rates (key secondary endpoints) were favourable for anifrolumab vs. placebo. Consistent with the overall population, anifrolumab had an acceptable safety and tolerability profile.

CONCLUSIONS

The efficacy and safety of anifrolumab 300 mg in Japanese patients with SLE was consistent with the demonstrated clinical profile of anifrolumab for the overall TULIP-2 population.

Rituximab in the real-world treatment of lupus nephritis: A retrospective cohort study in Japan

OBJECTIVES

Although recommended in established international guidelines for lupus nephritis (LN), rituximab is not officially approved for LN treatment, making all such use off-label. The Japan College of Rheumatology (JCR) conducted a retrospective observational study on real-world efficacy and safety of rituximab treatment for LN in Japan.

METHODS

Clinical data were collected from 47 hospitals for LN patients treated with rituximab to retrospectively investigate dosing schedule, efficacy, and safety.

RESULTS

This retrospective analysis included 115 patients: 84 (73%) received 375 mg/m2 weekly up to four doses, and 31 (27%) received 1000 mg/body in one or two doses 2 weeks apart. Rituximab significantly improved findings for urinalysis, systemic lupus erythematosus serology, and systemic lupus erythematosus disease activity and was assessed as 'extremely effective' in 24.8% of patients and 'effective' in 60.2%. The renal response by the JCR-I criteria was 52.5% for overall response rate (ORR) (complete renal response rate 20.8% and partial renal response rate 31.7%) and that by the JCR-II criteria was 49.5% (21.8% and 27.7%, respectively). Corticosteroid dose was significantly reduced. Rituximab was well tolerated, with frequent but manageable adverse events of infusion reaction and infection.

CONCLUSIONS

Rituximab is effective for the treatment of Japanese patients with LN refractory to conventional therapy.

Sequential treatment of rituximab and belimumab in thrombotic thrombocytopenia purpura associated with systemic lupus erythematous: A respective case series and literature review

INTRODUCTION

Thrombotic thrombocytopenia purpura (TTP) associated with systemic lupus erythematous (SLE), features the appearance of inhibitory autoantibodies against ADAMTS13. Rituximab and belimumab (BEL), as both targeting B cells, seem to be an optimal therapy to induce clinical remission, prevent relapse of disease and contribute to glucocorticoid induction. However, the clinical outcome of SLE-TTP treated with sequential therapy between rituximab and BEL remain elusive.

CASE SERIES

We reported the clinical outcomes of 4 patients diagnosed with SLE-TTP who were administrated a combination of corticosteroids, plasma exchange, and rituximab at stage of induction. BEL was utilized to rapidly reduce the reliance on these agents and prevent relapse of TTP at maintenance stage. Ultimately, 4 patients fully recovered with a SLE Disease Activity Index score of 0 and reached the goal at dose of prednisolone <7.5 mg/d without relapse.

CONCLUSION

Sequential treatment of rituximab and BEL could be an encouraging approach in treatment of SLE-TTP and rapid glucocorticoid reduction.

Treat to target in Behcet's disease: Should we follow the paradigm of other systemic rheumatic diseases?

During the last decades the efficacy of biologic agents, mainly of anti-TNFs, in controlling the activity of serious manifestations of Behcet's Disease (BD) has been established. On the other hand, the clinical heterogeneity of BD has precluded the validation of a widely-accepted composite index for disease assessment and for target disease-state definitions, such as low disease activity and remission, and the testing of their implementation in clinical practice. Therefore, in contrast to other systemic rheumatic diseases, a treat-to-target strategy has not yet been developed in BD. There are several challenges towards this approach, including standardization of outcome measures for assessing the disease activity in each-affected organ and construction of a composite disease activity index. The challenges for the development of a treat-to-target strategy and possible solutions are discussed in this position paper, which stemmed from a round table discussion that took place in the 19th International Conference on BD.

Consensus document of the Spanish Group for the Study of the Glomerular Diseases (GLOSEN) for the diagnosis and treatment of lupus nephritis

A significant number of patients with systemic lupus erythematosus (between 20% and 60% according to different reported series) develop lupus nephritis in the course of its evolution, which directly influences their quality of life and vital prognosis. In recent years, the greater knowledge about the pathogenesis of systemic lupus and lupus nephritis has allowed relevant advances in the diagnostic approach and treatment of these patients, achieving the development of drugs specifically aimed at blocking key pathogenic pathways of the disease. Encouragingly, these immunomodulatory agents have shown in well-powered, randomized clinical trials good clinical efficacy in the medium-term, defined as proteinuria remission and preservation of kidney function, with an acceptable safety profile and good patient tolerability. All this has made it possible to reduce the use of corticosteroids and other potentially more toxic therapies, as well as to increase the use of combined therapies. The present consensus document carried out by the Glomerular Diseases Working Group of the Spanish Society of Nephrology (GLOSEN), collects in a practical and summarized, but rigorous way, the best currently available evidence about the diagnosis, treatment, and follow-up of lupus nephritis patients, including cases of special situations, with the main objective of providing updated information and well-founded clinical recommendations to treating physicians, to improve the diagnostic and therapeutic approach to our patients.

Literature review of lupus nephritis From the Arabian Gulf region

INTRODUCTION

The severity of lupus nephritis (LN) varies between different ethnicities. However, there are limited data regarding disease severity for LN in patients from the Arabian Gulf region; moreover, there are no treatment guidelines developed specifically for this population. The objective of this review was to characterise the incidence of LN, current treatment practices, the severity of LN, and the pathophysiology and biomarkers associated with LN in the Arabian Gulf region.

METHODS

A literature search using EMBASE was conducted in October, 2021 to identify publications reporting on the incidence, treatment practices, severity, pathophysiology or biomarkers associated with LN, from countries in the Arabian Gulf region (including Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates). Additional relevant publications were provided by collaborators. A manual review of the publications was conducted to determine their relevance and data on the outcomes of interest were extracted.

RESULTS

Of 3705 publications, 54 publications were identified as relevant. LN is one of the most commonly diagnosed renal diseases within the Arabian Gulf and approximately 10%-36% of all renal biopsies are for LN. Treatment patterns within the region appear to vary and generally follow treatment guidelines recommended by the Asia Pacific League of Associations for Rheumatology (APLAR), the European Alliance of Associations for Rheumatology (EULAR) and Kidney Disease Improving Global Outcomes (KDIGO). The majority of patients receive cyclophosphamide for induction therapy, whilst others receive mycophenolate mofetil. Most studies showed that the most frequently diagnosed class of LN within the Arabian Gulf region was Class IV (up to 63% of patients with LN). Sustained or increased levels of serum creatinine and proteinuria; and depressed levels of complement C3/C4 were commonly seen among patients with LN from the Arabian Gulf region.

CONCLUSIONS

This review identified that LN may manifest more severely among patients from the Arabian Gulf region than in other populations, such as Caucasian populations. A greater understanding of LN and the treatment practices within the region, as well as the development of more specific treatment guidelines for this population may help improve outcomes for patients with LN in the Arabian Gulf region.

Valuing Health Gain from Composite Response Endpoints for Multisystem Diseases

OBJECTIVES

This study aimed to demonstrate how to estimate the value of health gain after patients with a multisystem disease achieve a condition-specific composite response endpoint.

METHODS

Data from patients treated in routine practice with an exemplar multisystem disease (systemic lupus erythematosus) were extracted from a national register (British Isles Lupus Assessment Group Biologics Register). Two bespoke composite response endpoints (Major Clinical Response and Improvement) were developed in advance of this study. Difference-in-differences regression compared health utility values (3-level version of EQ-5D; UK tariff) over 6 months for responders and nonresponders. Bootstrapped regression estimated the incremental quality-adjusted life-years (QALYs), probability of QALY gain after achieving the response criteria, and population monetary benefit of response.

RESULTS

Within the sample (n = 171), 18.2% achieved Major Clinical Response and 49.1% achieved Improvement at 6 months. Incremental health utility values were 0.0923 for Major Clinical Response and 0.0454 for Improvement. Expected incremental QALY gain at 6 months was 0.020 for Major Clinical Response and 0.012 for Improvement. Probability of QALY gain after achieving the response criteria was 77.6% for Major Clinical Response and 72.7% for Improvement. Population monetary benefit of response was £1 106 458 for Major Clinical Response and £649 134 for Improvement.

CONCLUSIONS

Bespoke composite response endpoints are becoming more common to measure treatment response for multisystem diseases in trials and observational studies. Health technology assessment agencies face a growing challenge to establish whether these endpoints correspond with improved health gain. Health utility values can generate this evidence to enhance the usefulness of composite response endpoints for health technology assessment, decision making, and economic evaluation.

Lithium Toxicity - A Chameleon to Gastrointestinal Vasculitis as an Initial Presenter of Systemic Lupus Erythematosus

Systemic lupus erythematosus (SLE) is a multisystemic autoimmune disease. Gastrointestinal manifesting as nausea, vomiting, and pain abdomen are not so uncommon in SLE flare. However, gastrointestinal intestinal vasculitis as an initial presenter of SLE is very rare. This case report narrated gastrointestinal vasculitis as an initial presentation of systemic lupus erythematous, which mimicked lithium toxicity in a patient of preexisting bipolar disorder who was on long-term lithium therapy. A 26-year-old female presented with abdominal pain and persistent vomiting for 2 months. On further workup, she was antinuclear, anti-Smith, and anti-ds-DNA antibody positive. The serum lithium level was found to be normal computed tomography angiogram of the abdomen suggestive of vasculitis. A final diagnosis of SLE with gastrointestinal vasculitis as an initial presenter was made. She was treated with high-dose corticosteroid, cyclophosphamide, and other supportive care. She improved dramatically and was discharged with an oral corticosteroid, hydroxychloroquine, and ramipril.

Macular Ganglion Cell Complex and Peripapillary Retinal Nerve Fiber Layer Thicknesses in Hydroxychloroquine Retinopathy

OBJECTIVE

To investigate macular ganglion cell complex (GCC) and peripapillary retinal nerve fiber layer (RNFL) thicknesses in patients with hydroxychloroquine retinopathy of differing severity.

DESIGN

Cross-sectional, case-control comparison study.

PARTICIPANTS

From patients screened for hydroxychloroquine retinopathy between January 2016 and October 2021 using swept-source optical coherence tomography (SS-OCT), fundus autofluorescence (FAF), and standard automated perimetry, 66 patients with retinopathy and 66 without retinopathy were included by 1:1 propensity score matching based on age, sex, systemic diseases, history of tamoxifen and pentosan use, and kidney disease.

METHODS

Eyes with hydroxychloroquine retinopathy were divided into early, moderate, and severe stages. Inner-retinal thickness parameters, including macular GCC (RNFL + ganglion cell layer + inner plexiform layer) and peripapillary RNFL thicknesses, were automatically obtained using SS-OCT (DRI-OCT Triton, Topcon Inc., Japan) and compared between patients with and without retinopathy and between severity subgroups. The structure-function relationships between GCC or peripapillary RNFL thicknesses and perimetric parameters including mean deviation (MD) and visual field index (VFI) of Humphrey 30-2 test were evaluated.

MAIN OUTCOME MEASURES

Macular GCC and peripapillary RNFL thickness parameters.

RESULTS

The average macular GCC and peripapillary RNFL thicknesses were significantly decreased in patients with hydroxychloroquine retinopathy relative to those without retinopathy. Macular GCC thicknesses in 4 of 6 macular sectors and peripapillary RNFL thicknesses in 9 of 12 clock-hour sectors were significantly different between the groups. The differences in the average and sectoral macular GCC parameters were statistically significant among the severity subgroups, particularly between severe and earlier stages. Average macular GCC and peripapillary RNFL thicknesses significantly correlated with MD and VFI in all patients (all P < .001).

CONCLUSIONS

Macular GCC and peripapillary RNFL thinning was more prominent in eyes with severe hydroxychloroquine retinopathy, as indicative of inner-retinal thinning in eyes with advanced-stage disease. Further, as inner-retinal thinning showed a significant correlation with worse perimetric function, cautious evaluation of the inner retina may be required for eyes with advanced hydroxychloroquine retinopathy.

The rapid inhibition of B-cell activation markers by belimumab was associated with disease control in systemic lupus erythematosus patients

Objective: To examine the kinetics of B cell subsets and activation markers in the early stage of belimumab treatment and their correction with treatment response. Methods: We enrolled 27 systemic lupus erythematosus (SLE) patients receiving 6 months belimumab treatment. Flow cytometry was used to test their B cell subsets and activation markers (including CD40, CD80, CD95, CD21^low, CD22, p-SYK and p-AKT). Results: During belimumab treatment, SLEDAI-2K declined, the proportions of CD19⁺ B cells and naïve B cells decreased, whereas the switched memory B cells and non-switched B cells increased. The larger variations of the B cell subsets and the activation markers were in the first 1 month than the other later time frames. The ratio of p-SYK/p-AKT on non-switched B cell at 1 month was associated with the SLEDAI-2K decline rate in the 6 months of belimumab treatment. Conclusion: B cell hyperactivity was rapidly inhibited in the early stage of belimumab treatment, and the ratio of p-SYK/p-AKT may predict SLEDAI-2K decline. Clinical Trial Registration: https://www.clinicaltrials.gov/ct2/show/NCT04893161?term=NCT04893161&draw=2&rank=1; identifier: NCT04893161.

Omega-3 fatty acids: Current insights into mechanisms of action in systemic lupus erythematosus

Systemic lupus erythematosus (SLE) is one of the autoimmune diseases characterized by the lack of self-tolerance and the formation of immune complexes and nuclear autoantigens resulting in inflammation in multiple organs. Nowadays, the major aim of SLE therapy is the control of disease activity. However, the biological heterogeneity between patients and the absence of safe and specific targeted treatments complicate the lupus management. Therefore, the potential prophylactic effects of natural therapy considering the potential side effects of classical pharmacology, also the role of diet therapy in decreasing co-morbidities and improving quality of life in SLE patients could be a promising approach to SLE disease. Omega-3 polyunsaturated fatty acids (omega-3 PUFAs) are one of the agents that are considered for their preventive and therapeutic properties in disease activity of SLE and the related complications. The intake of omega-3 PUFAs likely has a direct relationship with improvements in inflammatory, cardiovascular, depressive, and neuromotor symptoms of the patients. The current review summarizes clinical and preclinical studies with comprehensive insights into the mechanisms of action of omega-3 fatty acids (omega-3 FAs) in Systemic Lupus Erythematosus to provide an update on the negative and positive aspects of the intake of omega-3 FAs in SLE patients.

Risk factors analysis and risk assessment model construction of systemic lupus erythematosus patients with infection

OBJECTIVE

To analyze the characteristics of peripheral blood lymphocyte subsets in systemic lupus erythematosus (SLE) patients with infection and non-infection group. Explore the risk factors of infection in SLE patients and establish a risk matrix model to predict the occurrence of co-infection.

METHODS

total of 333 SLE patients without infection, 163 patients suffering from infection, and 132 healthy controls (HCs) were recruited. General clinical data and disease activity indicators were collected. The levels of total T, B, CD4⁺T, CD8⁺T, NK, Th1, Th2, Th17, and Treg cells in peripheral blood of HCs, SLE patients (including infected and non-infected group) were analyzed by flow cytometry. The risk assessment model was constructed, and the receiver operating characteristic curve was drawn. 39 SLE patients with infection and 20 patients without infection were randomly selected to evaluate the predictive power of the regression model.

RESULTS

The levels of T, B, CD4⁺T, CD8⁺T, and NK cells in the infected patients were significantly decreased when compared with that of both non-infected patients and HCs (p < .05). The non-infected patients had a higher level of Th17 than that of HCs (p < . 05), but the absolute numbers of Th17 in infected patients was the lowest among the three groups (p < .001). The number of Treg cells in SLE patients was significantly lower than that of HCs (p < .01), and the infected patients had the fewest Treg cells among all these groups (p < . 05). A risk assessment model for SLE with infection was established, p = 1/(1^-e^-y), Y = 1.763-0.004 × Absolute number of CD4 ⁺ T cells-0.005 × Absolute number of NK cells -0.005 × Platelet count(×10¹²/L) + 1.033 × Absolute number of lymphocytes (×10⁹/L) + 0.023 × C-reactive protein (mg/dL), whose predictive sensitivity is 77.5%, and specificity is 78.3%.

CONCLUSION

The new risk assessment model exhibits good predictive ability to assess co-infection risk in SLE patients. T cells, NK cells, and CD4 ⁺ T cells along with other parameters help in differentiating Lupus with infection from Lupus alone.

Adherence to antimalarials and glucocorticoids treatment and its association with self-reported disease activity in systemic lupus erythematosus patients

OBJECTIVES

We aimed to investigate the rate of non-adherence to antimalarials and glucocorticoids (GCs) and to analyze their potential relationships with sociodemographic characteristics, disease activity and accumulate damage in a cohort of Systemic lupus erythematosus (SLE) patients.

METHODS

A cross-sectional study was conducted among 670 patients. The Systemic Lupus Erythematosus Activity Questionnaire (SLAQ) and the Lupus Damage Index Questionnaire (LDIQ) were used to assess disease activity and accumulated damage.

RESULTS

The prevalence of non-adherence to antimalarials and GCs were 10.67% and 39.61%. 86.9% of participants indicated that the reason for stopping therapy was the presence of side effects. SLE patients with non-adherence to antimalarials and GCs had significantly higher scores in disease severity (SLAQ) compared to adherence patients (5.03 (2.12) vs 4.39 (2.61); p = .004 and (4.75 (2.29) vs 4.05 (2.78); p ≤ .001).

CONCLUSION

Adherence to the treatment indicated in SLE differs from drug to drug. Findings highlight the importance of developing interventions to support adherence and improve outcomes among patients.

Cost-Effectiveness of Acthar Gel Versus Standard of Care for the Treatment of Exacerbations in Moderate-to-Severe Systemic Lupus Erythematosus

INTRODUCTION

Despite current standard of care (SoC), there is an unmet need for the treatment of active systemic lupus erythematosus (SLE). The study assessed the cost-effectiveness of Acthar^® Gel (repository corticotropin injection) versus SoC treatment in patients with active, moderate-to-severe SLE from the US payer and societal perspectives over 2 and 3 years.

METHODS

Cost-effectiveness model was developed using a probabilistic cohort-level state-transition approach. Patients received Acthar Gel in an exacerbation state, and the outcomes were assessed at the end of a 3-month cycle for response achievement based on the probability of treatment success with Acthar Gel. Patients may sustain the response or experience an exacerbation. For the base case scenario, moderate-to-severe SLE was defined as British Isles Lupus Assessment Group (BILAG)-2004 ≥ 20 or SLE Disease Activity Index 2000 (SLEDAI-2K) ≥ 10 and clinical response was based on SLE responder index (SRI)-4. Clinical response, productivity loss, and utility were derived from a phase 4 SLE trial; cost and disutility estimates were sourced from the literature.

RESULTS

From a payer perspective, Acthar Gel versus SoC resulted in an incremental cost-effectiveness ratio (ICER) of $133,110 per quality-adjusted life-year (QALY) and $94,818 per QALY over 2 and 3 years, respectively. From a societal perspective, Acthar Gel versus SoC results in an ICER of $70,827 per QALY and $32,525 per QALY over 2 and 3 years, respectively. Results from the sensitivity and scenario analyses are consistent with those of the base case model.

CONCLUSIONS

Acthar Gel is a cost-effective, value-based treatment option for appropriate patients with moderate-to-severe SLE at a willingness-to-pay threshold of $150,000 over 2-3 years from the US payer and societal perspectives. Acthar Gel results in the reduction of direct medical and indirect costs.

B cell depletion and inhibition in systemic lupus erythematosus

INTRODUCTION

Systemic lupus erythematosus (SLE) is characterized by autoantibody expression and aberrant autoreactive B cells contribute to disease progression; therefore, B cell inhibition has been an attractive target for novel therapies. However, after more than two decades of research and over 40 randomized clinical trials, only one such therapy, belimumab, has been approved for use in SLE.

AREAS COVERED

In this review, we discuss the evidence for B cell-targeted therapies in SLE and lupus nephritis. Belimumab has been successful in several large clinical trials and is approved in several countries for use in SLE and lupus nephritis. Despite a lack of supporting phase III evidence, rituximab is used off-label in SLE. Several other B cell-targeted therapies have failed to meet their end points in late-stage clinical trials. Successful phase II trials have recently been reported for obinutuzumab and telitacicept with larger confirmatory trials currently underway.

EXPERT OPINION

Refinements in pharmaceutical mechanisms of action, trial design, and patient selection have resulted in recent preliminary successes, offering renewed optimism for B-cell targeted therapeutics in SLE management.

Association between early immunophenotypic changes and therapeutic response of belimumab in patients with systemic lupus erythematosus

Belimumab is a therapeutic medication that inhibits the B-cell-activating factor (BAFF) used for systemic lupus erythematosus (SLE); however, the response sometimes varies among individuals, even when patients are stratified based on general clinical characteristics. Therefore, we focused on immunological phenotypic changes with belimumab, investigated their association with subsequent clinical courses, and sought to identify relevant immunological indicators to stratify patients who would benefit from belimumab. We assessed changes in B and T cell phenotypes, as well as BAFF-related factors, such as levels of BAFF and a proliferation-inducing ligand, and expression of three BAFF receptors: BAFF receptor (BAFF-R), B-cell maturation antigen (BCMA), transmembrane activator and cyclophilin ligand interactor (TACI), in 19 patients with SLE who were treated with belimumab before and 3 months after treatment. First, to visualize patterns in complex and diverse data, we summarized B cell changes such as subsets and BAFF receptor expressions into two axes, the first and second principal components (PC1 and PC2), and characterized broad phenotypic changes by cluster analysis. Next, we evaluated whether the B cell changes represented by PC1 and PC2 were associated with other concurrent phenotypic changes, baseline factors, and treatment response at 6 months. We found that lower PC2, indicating increased BAFF-R expression and decreased percentage of naïve B cells, was associated with a subsequent therapeutic response at 6 months (odds ratio 5.3, 95% confidence interval 1.2-24, p = .031). Furthermore, higher percentages of effector memory CD3+CD4+ T cells at baseline were associated with lower PC2 and therapeutic response. Further analysis revealed that increased PC1, as reflected by increased BCMA and TACI expression and an increase in the percentage of class-switched memory B cells, was associated with both T and B cell activation. Although belimumab is a B-cell targeted therapy, it can also influence T-cell phenotypes. Thus, early B cell changes could be used to predict treatment response, and their changes could be predicted from baseline T cell phenotypes, indicating the importance of B and T cell interactions.

Favorable pregnancy outcomes in two patients with systemic lupus erythematosus treated with belimumab

BACKGROUND

Systemic lupus erythematosus (SLE) is associated with poor pregnancy outcomes and complications. Belimumab can significantly improve disease activity in patients with SLE. However, there is insufficient evidence to prove the absolute safety of belimumab treatment during pregnancy.

CASE SUMMARY

A 37-year-old woman was diagnosed with SLE after a renal puncture biopsy in 2012. The other patient was a 25-year-old woman. She was diagnosed with SLE at 19 years of age. They were treated by standard therapy in the early stage of treatment. The first patient has multiple histories of miscarriages or abortions at different gestational ages caused by SLE activity. The other patient also has persistent thrombocytopenia due to SLE flare. In our patients, SLE was poorly controlled by standard therapy. We initiated belimumab treatment during pregnancy because the benefits of treating SLE outweighed the risks to the fetus. The first patient was admitted to the first belimumab infusion at approximately 14 weeks of gestation. The other patient was admitted to the first belimumab infusion at approximately 12 weeks of gestation. Although our patients did not show complete disease remission during belimumab treatment, neither had serious adverse reactions or adverse pregnancy events, and their babies were in good conditions at birth.

CONCLUSION

We present 2 cases of pregnant women with SLE who were treated with belimumab. Both were able to deliver their babies successfully without any complications.

Management of Complete Heart Block in a Pregnant Woman with Systemic Lupus Erythematosus-Associated Complications: Treatment Considerations and Pitfalls

We present a case of a pregnant woman with systemic lupus erythematosus (SLE) who was diagnosed with asymptomatic complete heart block (CHB) during pregnancy. To evaluate possible risks and benefits of pacemaker (PM) implantation, a multidisciplinary counselling board was held. Its recommendation was to perform PM implantation to prevent intra-uterine growth restriction from insufficient cardiac output using a fluoroscopic protective shield. The procedure was performed without complications and established permanent pacing on onwards ECG examinations. The patient subsequently gave birth to a healthy newborn. After a retrospective clinical case evaluation and review of relevant literature, a presumptive association between CHB and the primary diagnosis was proposed. Above that, pregnant women with SLE who develop hypertension are commonly treated with methyldopa, which may cause conduction abnormalities. Clinical recommendations for young female patients expecting pregnancy are lacking in this area. Careful diagnostic and treatment approaches should be used in the management of possible SLE-related complications in women of child-bearing age, focusing on preventable events.

Retinal microvascular density analysis in patients with rheumatoid arthritis treated with hydroxychloroquine

PURPOSE

Rheumatoid arthritis (RA) is the most common inflammatory joint disease, and hydroxychloroquine (HCQ) is an established treatment. The extent to which HCQ impacts ocular microvascular vessel density (VD) in patients with RA without evidence of HCQ retinopathy has not yet been conclusively clarified. The main aim of this study was to evaluate VD measured by optical coherence tomography angiography (OCTA) in patients with RA treated with HCQ.

METHODS

The VD data of the 3 × 3 mm OCT angiogram (RTVue XR Avanti, Optovue Inc., Fremont, California, USA) as well as the retinal thickness (RT) data of patients with RA (n = 30) and healthy controls (n = 30) were extracted and analyzed. The study group was further divided into patients undergoing HCQ treatment for > 5 years (high-risk-group) and < 5 years (low-risk group).

RESULTS

Patients with RA showed no evidence of VD reduction compared to the control group in all obtained regions (p > 0.05). Correlation analysis revealed no dependency between VD, RT, and HCQ therapy duration or cumulative HCQ dose (p > 0.05). High-risk patients showed a decreased VD in the superficial quadrant of the superficial capillary plexus compared to low-risk-patients (p = 0.022). Whole-en-face RT was reduced in the high-risk group compared to the control group (p = 0.019).

CONCLUSION

Our study showed no evidence that HCQ diminishes VD in patients with RA without HCQ retinopathy measured by OCTA. However, RA patients with a long duration of therapy showed a significantly reduced RT. Our results suggest that quantitative VD analysis by OCTA may not be suitable for early detection of HCQ retinopathy and that the focus on detecting early HCQ retinopathy should be on intensive and sequential OCT diagnostics.

Synthetic Pharmacotherapy for Systemic Lupus Erythematosus: Potential Mechanisms of Action, Efficacy, and Safety

The pharmacological treatment of systemic lupus erythematosus (SLE) aims to decrease disease activity, progression, systemic compromise, and mortality. Among the pharmacological alternatives, there are chemically synthesized drugs whose efficacy has been evaluated, but which have the potential to generate adverse events that may compromise adherence and response to treatment. Therapy selection and monitoring will depend on patient characteristics and the safety profile of each drug. The aim of this review is to provide a comprehensive understanding of the most important synthetic drugs used in the treatment of SLE, including the current treatment options (mycophenolate mofetil, azathioprine, and cyclophosphamide), review their mechanism of action, efficacy, safety, and, most importantly, provide monitoring parameters that should be considered while the patient is receiving the pharmacotherapy.

The impact of normal serum complement levels on the disease classification and clinical characteristics in systemic lupus erythematosus

BACKGROUND

Some patients have normal levels of complement during the diagnosis of systemic lupus erythematosus (SLE), although decreased serum levels of complement are a hallmark of the active phase of the disease. This study investigated the clinical characteristics, impact on the classification of SLE, and the prognosis of patients with SLE who had normal serum complement levels at initial diagnosis (N-com).

METHODS

We evaluated 21 patients with N-com and 96 patients with hypocomplementemia at the initial diagnosis of SLE (H-com). The classification rates among the American College of Rheumatology (ACR) 1997, Systemic Lupus International Collaborating Clinics (SLICC) 2012, European League Against Rheumatism (EULAR)/ACR 2019 criteria, and clinical and immunological involvements were compared between SLE patients with N-com and H-com. Relapse and organ damage based on the SLICC/ACR damage index were also evaluated.

RESULTS

The classification rates of SLE were not significantly different in the ACR, SLICC, and EULAR/ACR criteria between the N-com and H-com groups. Patients with N-com had no significant differences in the classification rates among the three criteria, whereas patients with H-com had lower classification rates in the ACR criteria than in the SLICC criteria. A lower incidence of renal manifestation, less positivity for anti-dsDNA antibody, and a higher incidence of fever were observed in patients with N-com than in those with H-com. The occurrence of relapse and organ damage was not significantly different between patients with N-com and H-com.

CONCLUSION

Patients with N-com were less involved in renal manifestation and anti-dsDNA antibody positivity but had a higher incidence of fever than those with H-com, while having no disadvantage in SLE classification processes. Serum complement levels at the initial diagnosis of SLE may not predict prognosis.

Features of clinical manifestations, course, outcomes and health related quality of life in patients with systemic lupus erythematosus in the Republic of Kazakhstan

Objective – to evaluate the features of clinical manifestations, course, outcomes and quality of life related to health in patients with systemic lupus erythematosus in the Republic of Kazakhstan.Patients and methods. The study included 102 patients with systemic lupus erythematosus (SLE) with a reliable diagnosis according to SLICC (2012). Disease activity was assessed by the SLEDAI 2K index, organ damage (IOD) by SLICC/ACR (2000). Statistical processing was carried out using SPSS 13 software (IBM Corp., USA). Variables with a parametric distribution are presented as М±SD, nonparametric – as a median (Me) [25th; 75th percentile].Results and discussion. The cohort was dominated by female patients (98%), Asians (83.33%), young patients (33.85±10.58 years) with a disease duration of 5 [2; 9] years with high (30.8%) and very high (39.2%) degree of activity (SLEDAI-2K – 17.64±8.80 points). The debut of the disease was in 18.6% of patients in adolescence, it was characterized by an unfavorable course. Clinical manifestations of the disease: skin lesions (acute active and chronic forms) (98%), joints (79.4%), non-scarring alopecia (75.5%), neuropsychiatric disorders (49%), mucous membranes (46.1%), hematological (54.9%) and immunological disorders (100%). IOD: low – in 20.6%, medium – in 59.8%, high – in 9.8% of patients, 0 – in 9.8%, Risk factors for poor outcome were in 93.1% of patients. Assessment of health-related quality of life (HRQOL) in SLE patients showed a significant decrease on all scales. Correction of the treatment program, taking into account the factors of adverse outcome (FRNI), consisted in strengthening therapy with the inclusion of genetically engineered biological drugs (GEBP).Conclusion. SLE is a socially significant disease in Kazakhstan with a high incidence rate (101%) over 10 years (2009–2018). The cohort of SLE patients is dominated by young people, females. The duration of the disease is up to 5 years with a delayed verification of the diagnosis of SLE. Organ damage is already in the onset of the disease and the presence of FRNI of the disease in 93.1% of patients, which indicates the severity of the course, which requires early diagnosis and active involvement of pathogenetic treatment, including GEBD. 

Low-dose glucocorticoids withdrawn in systemic lupus erythematosus: a desirable and attainable goal

OBJECTIVES

To assess the risk of flare in systemic lupus erythematosus (SLE) patients after low-dose glucocorticoid (GC) discontinuation and to evaluate the risk factors of flare.

METHODS

SLE patients who ever discontinued GCs were identified from the Peking University First Hospital SLE cohort. The disease flare profile after GC discontinuation was analysed. The flare rate was analysed using Kaplan-Meier analysis. Cox regression was used to determine the effects of variables on SLE flare. A prognostic nomogram using Cox proportional hazards regression modelling was developed.

RESULTS

A total of 132 SLE patients were eligible for the final analysis. They were followed up for a median of 21.8 months (interquartile range 9.01-36.7). The cumulative probability of flare after GC discontinuation was 8.3% at 6 months, 16.8% at 1 years and 27.5% at 2 years. In multivariate Cox analysis, hypocomplementemia and serologically active clinically quiescent (SACQ) were independent risk factors of flare [hazard ratio (HR0 2.53 (95% CI 1.32, 4.88); HR 3.17 (95% CI 1.44, 6.97), respectively]. Age ≥40 years at GC withdrawal and hydroxychloroquine (HCQ) usage were independent protective factors of flare [HR 0.53 (95% CI 0.29, 0.99); HR 0.32 (95% CI 0.17, 0.62), respectively]. The protective effect of HCQ was dosage related. From the perspective of different tapering strategies embodied as the duration from prednisone 5 mg/day to complete discontinuation, a slower tapering strategy (12-24 months) significantly reduced the risk of flare compared with a faster tapering strategy (<3 months) [HR 0.30 (95% CI 0.11, 0.82), P = 0.019]. The prognostic nomogram including the aforementioned factors effectively predicted the 1 and 2 year probability of being flare-free.

CONCLUSION

Low-dose GC is feasibly discontinued in real-life settings. SACQ and younger age are potential risk factors of SLE flare, while HCQ use and slow GC tapering to withdrawal can reduce relapse. The visualized model we developed may help to predict the risk of flare among SLE patients who discontinued GC.

[A multicenter study on the tolerance of intravenous low-dose cyclophosphamide in systemic lupus erythematosus]

OBJECTIVE

To compare the safety of low-dose cyclophosphamide and high-dose cyclophosphamide in the treatment of systemic lupus erythematosus (SLE).

METHODS

A total of 1 022 patients with systemic lupus erythematosus from 24 hospitals in China between March 2017 to July 2018 were enrolled. Their clinical manifestations, laboratory tests, adverse events, reasons for stopping receiving intravenous cyclophosphamide and comorbidities were collected. Among them, 506 SLE patients received short-interval low-dose intravenous cyclophosphamide therapy (SILD IV-CYC, 400 mg every two weeks), and 256 patients underwent high-dose cyclophosphamide therapy (HD IV-CYC, 500 mg/m² of body surface area every month), the side effects between the two groups were compared, the remaining 260 SLE patients were treated with IV-CYC irregularly. Moreover, a total of 377 patients in SILD IV-CYC group and 214 patients in HD IV-CYC group had medical records of the reasons for stopping recei-ving IV-CYC. The reasons for stopping receiving IV-CYC in these two groups were analyzed.

RESULTS

In this study, only 40.27%(238/591)of the SLE patients stopped receiving intravenous cyclophosphamide for the causes of disease improvement, however, up to 33.67% (199/591) of the patients for the reason of drug-related side effects. There were 83 patients out of 214 (38.79%) with high-dose intravenous cyclophosphamide treatment who stopped receiving IV-CYC for the drug-related side effects, which was significantly higher than that in the low-dose cyclophosphamide group (30.77%, 116/337, P=0.048). Of theses 506 patients in SILD IV-CYC group, 88 (17.39%) patients experienced gastrointestinal reactions, 66 (13.04%) suffered from infections, 49 (9.68%) had myelosuppression and 68 (13.44%) had alopecia, respectively. Among the 256 patients in the HD IV-CYC group, 80 (31.25%) experienced gastrointestinal reactions, 57 (22.27%) suffered from infections, 51 (19.92%) had myelosuppression and 49 (19.14%) had alopecia. Moreover, 71 (25.18%) of 282 female patients with age between 16 to 45 years in SILD IV-CYC group had abnormal menstruation, while menstrual disorder occurred in 39.72% (56/141) patients of HD IV-CYC group. There was no difference of drug-induced hepatic injury, hemorrhagic cystitis and fatigue between the two groups.

CONCLUSION

Low-dose cyclophosphamide showed a lower prevalence of adverse events than high-dose cyclophosphamide in systemic lupus erythematosus patients.

Efficacy and safety of rituximab treatment in patients with idiopathic inflammatory myopathies: A systematic review and meta-analysis

Objective

Idiopathic inflammatory myopathies (IIMs) are a heterogeneous group of autoimmune diseases with various subtypes, myositis-specific antibodies, and affect multiple systems. The treatment of IIMs remains challenging, especially for refractory myositis. In addition to steroids and traditional immunosuppressants, rituximab (RTX), a B cell-depleting monoclonal antibody, is emerging as an alternative treatment for refractory myositis. However, the therapeutic response to RTX remains controversial. This meta-analysis aimed to systematically evaluate the efficacy and safety of RTX in patients with IIMs, excluding sporadic inclusion body myositis.

Methods

PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, and WanFang Data were searched for relevant studies. The overall effective rate, complete response rate, and partial response rate were calculated to assess the efficacy of RTX. The incidences of adverse events, infection, severe adverse events, severe infection, and infusion reactions were collected to evaluate the safety of RTX. Subgroup analyses were performed using IIM subtypes, affected organs, continents, and countries. We also performed a sensitivity analysis to identify the sources of heterogeneity.

Results

A total of 26 studies were included in the quantitative analysis, which showed that 65% (95% confidence interval [CI]: 54%, 75%) of patients with IIMs responded to RTX, 45% (95% CI: 22%, 70%) of patients achieved a complete response, and 39% (95% CI: 26%, 53%) achieved a partial response. Subgroup analyses indicated that the overall efficacy rates in patients with refractory IIMs, dermatomyositis and polymyositis, as well as anti-synthetase syndrome were 62%, 68%, and 62%, respectively. The overall efficacy rates for muscle, lungs, and skin involvement were 59%, 65%, and 81%, respectively. In addition, studies conducted in Germany and the United States showed that patients with IIMs had an excellent response to RTX, with an effective rate of 90% and 77%, respectively. The incidence of severe adverse events and infections was 8% and 2%, respectively.

Conclusion

RTX may be an effective and relatively safe treatment choice in patients with IIMs, especially for refractory cases. However, further verification via randomized controlled trials is warranted.

Efficacy and safety of total glucosides of paeony in the treatment of systemic lupus erythematosus: A systematic review and meta-analysis

Background: Total glucosides of paeony (TGP), extracted from the Chinese medicine Paeonia lactiflora Pall., have been proven to be effective in various autoimmune diseases. We aim to systematically evaluate the efficacy and safety of TGP combined with different conventional therapeutic agents in the treatment of systemic lupus erythematosus (SLE). Methods: Eight databases were searched for randomized controlled studies of TGP for SLE. The search time was set from the establishment of the databases to March 2022. The risk of bias was assessed by the Cochrane Evaluation Manual (5.1.0), RevMan 5.3 software was used for meta-analysis, and the certainty of the evidence was assessed by the GRADE methodology. Results: A total of 23 articles were included, including 792 patients overall in the treatment group and 781 patients overall in the control group. The meta-analysis results showed that TGP combined with conventional treatments was superior to the conventional treatments in reducing the SLE disease activity and the incidence of adverse reactions (SMD_TGP+GC+CTX = -1.98, 95% Cl = [-2.50, -1.46], p < 0.001; SMD_TGP+GC+HCQ = -0.65, 95% Cl = [-1.04, -0.26], p <0.001; SMD_TGP+GC+TAC = -0.94, 95% Cl = [-1.53, -0.34], p < 0.05; SMD_TGP+GC = -1.00, 95% Cl = [-1.64, -0.36], p < 0.05; and RR_TGP+GC+CTX = 0.37, 95% Cl = [0.21, 0.64], p < 0.001). The results also showed that TGP helped improve other outcomes related to SLE disease activity, such as complement proteins (C3 and C4), immunoglobulins (IgA, IgM and, IgG), ESR, CRP, 24 h urine protein, and recurrence rate. In addition, TGP may also be effective in reducing the average daily dosage of glucocorticoids (GCs) and the cumulative dosage of cyclophosphamide (CTX). The certainty of the evidence was assessed as moderate to low. Conclusion: TGP is more effective and safer when used in combination with different conventional therapeutic agents. It helped reduce the disease activity of SLE and the incidence of adverse reactions. However, we should be cautious about these conclusions as the quality of the evidence is poor. Future studies should focus on improving the methodology. High-quality randomized controlled trials (RCTs) will be necessary to provide strong evidence for the efficacy of TGP for SLE. Systematic Review Registration: https://www.crd.york.ac.uk/PROSPERO, identifier CRD42021272481.

The effects of glucocorticoid treatment on cardiovascular system in patients with systemic lupus erythematosus

Objectives

This study aims to assess variables concerning arterial stiffness including carotid-femoral pulse wave velocity, carotid-radial pulse wave velocity, ankle-brachial index, and the advancement of atherosclerosis development.

Patients and methods

Between October 2016 and December 2020, a total of 43 consecutive patients with systemic lupus erythematosus (SLE) (4 males, 39 females; mean age: 57±8 years; range, 42 to 65 years) were prospectively included in the study. All data were compared between the group treated with glucocorticoids and that not treated with these agents.

Results

The study group consisted of 43 patients with SLE, while 22 (51%) patients were treated with glucocorticoids. The mean duration of SLE was 12.3±5.3 years. Patients treated with glucocorticoids had lower values of ankle-brachial index compared to those who were not treated with glucocorticoids (p=0.041), although the values were within the range. A similar situation was reported for the carotid-femoral artery pulse wave velocity (p=0.032). However, carotid-radial artery pulse wave velocity was not significantly different between both groups (p=0.12).

Conclusion

Properly selected therapy is important in the prevention of CVD.

Glucocorticoid tapering and associated outcome in patients with newly diagnosed systemic lupus erythematosus: the real-world GULP prospective observational study

OBJECTIVE

A subanalysis of the multicentre Early Lupus inception cohort was performed to investigate the real-world Glucocorticoids (GCs) Use in newly diagnosed systemic lupus erythematosus (SLE) Patients (GULP).

METHODS

Patients starting prednisone (PDN) ≥5 mg/day and concomitant hydroxychloroquine or immunosuppressant within 12 months of SLE classification were enrolled. Core set variables were recorded at baseline and every 6 months, including changes in PDN dose, European Consensus Lupus Activity Measurement (ECLAM) and Systemic Lupus International Collaborating Clinics damage index. Regression models analysed predictors of tapering PDN<5 mg/day at any time and outcomes associated with different patterns of GCs tapering.

RESULTS

The GULP study included 127 patients with SLE; 73 (57.5%) tapered and maintained PDN <5 mg/day, and 17 (13.4%) discontinued PDN within a 2-year follow-up. Renal involvement (HR: 0.41; p=0.009) and lower C3 serum levels (HR: 1.04; p=0.025) predicted a lack of PDN tapering below 5 mg/day. High ECLAM scores were associated with a greater probability of increasing PDN dose (OR: 1.6; p=0.004), independently of daily intake. Disease relapse rate did not statistically differ (p=0.706) between patients tapering PDN <5 mg/day (42/99, 42.4%) and those tapering PDN without dropping below 5 mg/day (13/28, 46.4%). Every month on PDN <5 mg/day associated with lower damage accrual (IRR: 0.96; p=0.007), whereas never tapering PDN <5 mg/day associated with a higher risk of developing GC-related damage (OR 5.9; p=0.014).

CONCLUSION

Tapering PDN <5 mg/day was achieved and maintained in half of newly diagnosed patients with SLE and may represent a good balance between the need to prevent damage accrual and the risk of disease relapse.