SLEuro today commented articles

Title: Towards a standardization of the Physican Global Assessment (PGA) in Lupus?

Comment on: Piga et al. Physician Global Assessment International Standardisation COnsensus in Systemic Lupus Erythematosus: the PISCOS study. The Lancet Rheumatology 2022 Volume 4, Issue 6, Pages e441-e449. https://doi.org/10.1016/S2665-9913(22)00107-2

Commented by: Professor Laurent ARNAUD, Department of Rheumatology, French National Reference Center RESO for Autoimmune diseases, Strasbourg, France. Twitter: @Lupusreference

 

Because of SLE complexity, the assessment of disease activity is particularly challenging. The judgment of whether a patient with SLE has active disease is a central question, both in routine patient management as well as in clinical research and the development of a comprehensive index for assessing disease activity still represents one of the most important challenges in SLE. A previous systematic literature review (Chessa et al. Rheumatology 2020) has shown that the Physician Global Assessment (PGA) of disease activity, is a valid, responsive, and feasible instrument. However, its reliability was strongly affected by the scale design. The Physician Global Assessment International Standardisation COnsensus in Systemic Lupus Erythematosus (PISCOS) study aimed to obtain an evidence-based and expert-based consensus standardisation of the PGA scoring of disease activity in SLE. An international panel of 79 SLE experts led by the University of Strasbourg (France) and Cagliari (Italy), participated in a three-round Delphi consensus process, in which 41 statements related to the PGA in SLE were rated, using a 0 (strongly disagree) to 10 (strongly agree) numerical rating scale. Statements with agreement of 75% or greater were selected and further validated by the expert panel. Consensus was reached on 27 statements, grouped in 14 recommendations, for the use of the PGA in SLE, design of the PGA scale, practical considerations for PGA scoring, and the relationship between PGA values and levels of disease activity. Among these recommendations, the expert panel agreed that the PGA should consist of a 0–3 visual analogue scale for measuring disease activity in patients with SLE in the preceding month. The PGA is intended to rate the overall disease activity, taking into account the severity of active manifestations and clinical laboratory results, but excluding organ damage, serology, and subjective findings unrelated to disease activity. The PGA scale ranges from “no disease activity” (0) to the “most severe disease activity” (3) and incorporates the values 1 and 2 as inner markers to categorize disease activity as mild (≥0·5 to 1), moderate (>1 and ≤2) and severe (>2 to 3). The PISCOS study constitute a very important research work which results allow for increased homogeneity and reliability of PGA ratings in routine clinical practice, definitions of remission and low disease activity, as well as in SLE trials.


 

 

Title: Can we improve SLE patient pathways?

Comment on: Schlencker A et al. Improving patient pathways for systemic lupus erythematosus: a multistakeholder pathway optimisation study. Lupus Sci Med. 2022 May;9(1):e000700. https://doi.org/10.1136/lupus-2022-000700

Commented by: Professor Laurent ARNAUD, Department of Rheumatology, French National Reference Center RESO for Autoimmune diseases, Strasbourg, France. Twitter: @Lupusreference

 

Amongst the most significant challenges in SLE are the excessive diagnosis delay and the lack of coordinated care. 

Among the most significant unmet needs in SLE are the excessive diagnosis delay and the common lack of coordinated care for SLE patients. The general concept behind that of patient pathways is that the healthcare systems should ensure faster diagnosis and, for patients diagnosed with SLE, result in a rapid initiation of treatment through streamlined, standardized strategies. In the context of SLE, early diagnosis is both a priority and a challenge, as prolonged diagnostic delay may lead to worse outcomes, including damage accrual and socio-professional issues. Several attempts to optimize the care of patients with SLE have resulted in the implementation of several national and international guidelines, but individual patient trajectories within healthcare systems remain largely suboptimal. Both diagnosed and undiagnosed patients with SLE typically present complex problems, often requiring multiple interventions provided concurrently from several partners in their care. This emphasizes the need for an integrated and holistic approach to SLE diagnosis and treatment. The aim of the study was to investigate patient pathways in SLE in order to improve clinical and organisational challenges in the management of those with suspected and confirmed SLE. The authors conducted a cross-sectional study of patients with SLE, healthcare providers and other representative stakeholders. Focus groups were conducted, and based on collected data the most impactful disruption points in SLE patient pathways were identified. A novel framework to improve individual patient pathways in SLE was developed, discussed and validated during a consensus meeting with representative stakeholders. In total, 6 thematic clusters regarding disruptions in SLE patient pathways were identified in this study: 1) the need for appropriate and timely referral strategy for SLE diagnosis; 2) the need for a dedicated consultation during which the diagnosis of SLE would be announced, and following which clarifications and psychological support offered; 3) individualized and coordinated care based on organ involvement, disease severity and patient preference; 4) improved therapeutic patient education; 5) prevention of complications such as infections, osteoporosis and cancer; and 6) additional psychosocial patient support. 

During the consensus meeting, the broader panel of stakeholders achieved consensus on these attributes and a framework for optimizing SLE patient pathways was developed. In total, significant disruption points in lupus patient pathways were identified. These data are of great interest to patients with SLE, their physicians, health organizations as well as policy makers. 


 

A high burden of SLE risk genes is associated with persistent activation of the interferon system in patients with lupus.

Comment on: Single-cell RNA-seq reveals a persistent interferon signature in immune cells from  systemic lupus erythematosus patients with high versus low polygenic risk scores despite antimalarial  treatment. J Autoimmun. 2026 May 12:161:103575. doi: 10.1016.  Commented by: Lars Rönnblom, Department of Medical Sciences, Uppsala University, Sweden.    Genome-wide association studies have identified more than 300 loci associated to increased risk for  SLE. For the majority of the gene variants in these loci the functional consequences in the SLE disease  process are unknown. However, a large proportion of identified risk genes are connected to the  interferon signaling pathway and contribute to the interferon signature in SLE. Calculating a polygenic  risk score (PRS) is a method to quantify the cumulative genetic burden in a single patient and studies  have shown that patients with a high PRS have a more severe disease phenotype with increased  organ damage and reduced survival, compared to individuals with a low PRS.   Antimalarial therapy is a well-established treatment of SLE and have shown efficacy in a large  proportion of patients. The therapeutic effect is partly mediated by down regulation of the activated  interferon system, which is connected to clinical response. However, despite therapeutic  concentrations of hydroxychloroquine, many patients still have flares and accumulation of organ  damage. The main objective of the present study was therefore to clarify if antimalarial treatment has  different effects in patients with a high or a low PRS.  SLE patients in remission with a high or a low PRS were compared in gene expression profile at single  cell level on peripheral blood mononuclear cells. A total of 6 healthy controls and 16 matched  patients treated with similar antimalarial doses, but no corticosteroids, were investigated. On  average, 9636 cells were analyzed from each donor and 2724 genes detected per cell. Despite similar  clinical picture, patients with a high PRS had a prominent interferon signature across multiple  immune cell types, compared to patients with a low PRS who had a weak expression of interferon  stimulated genes only in monocytes. Pathway analysis revealed that the interferon signaling pathway 

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