Novel insights into the management of rheumatoid arthritis: one year in review 2024.

New evidence from 2023 has slightly shifted some perspectives on rheumatoid arthritis (RA) management. Glucocorticoids have reaffirmed their role as bridging therapy, while novel studies on JAK inhibitors have examined efficacy, mechanism of action, and their potential in high-risk populations, bolstering our understanding with real-world data.Additionally, among treatment strategies, achieving low disease activity has emerged as comparable to achieving remission in the long term, and new insights have been gained regarding tapering both biological and conventional synthetic DMARDs. Furthermore, novel approaches have been proposed for managing difficult-to-treat RA and pre-RA. In this paper, the reviewers aim to present the most relevant studies published during the last year in the field of RA management.

Late skin fibrosis in systemic sclerosis: a study from the EUSTAR cohort.

OBJECTIVES: The early trajectory of skin fibrosis provides insights into the disease course of systemic sclerosis (SSc) including mortality; however, little is known about late skin fibrosis. The aims of our study were to ascertain the prevalence and characteristics of late skin fibrosis in SSc. METHODS: We developed and tested three conceptual scenarios of late (>5 years after first non-RP feature) skin fibrosis including new worsening of skin disease, and failure to improve after worsening within 5-year window. We defined skin worsening as change in modified Rodnan skin score (mRSS) ≥5 units or ≥25%. Using strict inclusion criteria including complete mRSS, we identified 1,043 (out of 19 115) patients within the EUSTAR database for our analysis. We further restricted analysis within 887 (out of 1043) patients who had lcSSc or dcSSc at baseline. RESULTS: One-fifth of patients among the whole cohort (n = 208/1043, 19.9%) experienced mRSS worsening, including in patients with lcSSc or dcSSc at baseline (n = 193/887, 21.8%). This was largely due to new skin worsening after the 5-year window or failure to improve with worsening within the 5-year window. Patients with lower baseline mRSS and lcSSc were more likely to develop late skin fibrosis. Anti-Scl-70 was associated with progression from baseline lcSSc to dcSSc, and anticentromere was protective. CONCLUSIONS: Late skin fibrosis is not uncommon in SSc. We have identified different patterns relevant to clinical practice and trial design. Late skin fibrosis is a neglected manifestation of SSc and warrants further investigation including to determine clinical outcomes and optimal therapeutic strategy.

Sex influence on outcomes of patients with systemic sclerosis-associated interstitial lung disease: a EUSTAR database analysis.

OBJECTIVE: Interstitial lung disease (ILD) is the leading cause of morbidity and mortality in systemic sclerosis (SSc) patients. We aimed to investigate the impact of sex on SSc-ILD. METHODS: EUSTAR SSc patients with radiologically confirmed ILD and available percentage predicted forced vital capacity (%pFVC) were included. Demographics and disease features were recorded. A change in %pFVC over 12 months (s.d. 6) (cohort 1) was classified into stable (≤4%), mild (5-9%) and large progression (≥10%). In those with 2-year longitudinal %pFVC (cohort 2), the %pFVC change at each 12-month (s.d. 6) interval was calculated. Logistic regression analyses [odds ratio (OR) and 95% CI] and Cox proportional hazards models adjusted for age and %pFVC were applied. RESULTS: A total of 1136 male and 5253 female SSc-ILD patients were identified. Males were significantly younger, had a shorter disease duration, had a higher prevalence of CRP elevation and frequently had diffuse cutaneous involvement. In cohort 1 (1655 females and 390 males), a higher percentage of males had stable ILD (74.4% vs 69.4%, P = 0.056). In multivariable analysis, disease duration and %pFVC [OR 0.99 (95% CI 0.98, 0.99) and OR 0.97 (95% CI 0.95, 0.99), respectively] in males and age, %pFVC and anti-centromere [OR 1.02 (95% CI 1.00, 1.04), OR 0.97 (95% CI 0.96, 0.98) and OR 0.39 (95% CI 0.245, 0.63), respectively] in females were associated with large progression. The 1-year mortality rate was higher in males (5.1% vs 2.5%, P = 0.013). In cohort 2 (849 females and 209 males), a higher percentage of females showed periods of large progression (11.7% vs 7.7%, P = 0.023), the percentage of patients with none, one or two periods of worsening was not different. The overall death rate was 30.9% for males and 20.4% in females (P < 0.001). In the survival analysis, male sex was a predictor of mortality [OR 1.95 (95% CI 1.66, 2.28)]. CONCLUSIONS: Male SSc-ILD patients have a poorer prognosis and sex-specific predictors exist in SSc-ILD.

Long-term kidney outcome of patients with rheumatological diseases and antineutrophil cytoplasmic antibody-glomerulonephritis: comparison with a primitive ANCA-glomerulonephritis cohort.

OBJECTIVES: Antineutrophil cytoplasmic antibody (ANCA) may appear in the course of rheumatic diseases (RD) but the kidney involvement is very rare and the prognosis poorly defined. METHODS: We retrospectively identified patients with RD among 153 patients with ANCA glomerulonephritis (ANCA-GN). Their clinical/histological presentation and outcome were compared with that of primitive ANCA-GN patients (1:4) matched for sex, age, ANCA type and follow-up. RESULTS: Nine patients (5.9%) were included: three had rheumatoid arthritis, two systemic sclerosis, two psoriatic arthritis, one ankylosing spondylitis and one seronegative spondylarthritis. Seven patients were MPO positive, two PR3 positive. ANCA-GN developed 74 months after RD with microscopic haematuria and acute kidney dysfunction in all but two patients. After 68-month follow-up, four patients (44.4%) achieved response to therapy defined as eGFR >60/min/1,73 m2 or stable, no microscopic haematuria and negative ANCA. At ANCA-GN diagnosis, serum creatinine and C-reactive protein were significantly lower in RD-ANCA-GN (2.38 vs. 3.34mg/dl, p=0.05 and 2.3mg/dl vs. 7.2mg/dl; p=0.05, respectively) while haemoglobin was higher (12.3g/dl vs. 9.3g/dl p<0.01) than in the 36 primitive ANCA-GN patients of control group. At kidney biopsy, focal forms were more frequent in RD patients (44.45% vs. 18.75%, p=0.11). The treatment between the two groups was not significantly different. At last observation, the percentage of patients with ESKD was lower in RD than in controls (11.1%vs. 30.5%; p=0.23). CONCLUSIONS: Patients with RD seem to develop ANCA-GN with less severe clinical/histological kidney involvement, and better long-term kidney survival than primitive ANCA-GN. This is probably due to the strict monitoring of RD patients that allows a prompter ANCA-GN diagnosis and treatment.

Efficacy and safety of baricitinib in 446 patients with rheumatoid arthritis: a real-life multicentre study.

OBJECTIVES: Baricitinib, an oral Janus kinase (JAK) 1-2 inhibitor, is currently used along biologic DMARDs (bDMARDs) after the failure of methotrexate (MTX) in rheumatoid arthritis (RA). We investigated the efficacy and safety of baricitinib in real life. METHODS: We prospectively enrolled 446 RA patients treated with baricitinib from 11 Italian centres. Patients were evaluated at baseline and after 3, 6, and 12 months. They were arrayed based on previous treatments as bDMARD-naïve and bDMARD-insufficient responders (IR) after the failure or intolerance to bDMARDs. A sub-analysis differentiated the effects of methotrexate (MTX) and the use of oral glucocorticoids (OGC). RESULTS: Our cohort included 150 (34%) bDMARD-naïve and 296 (66%) bDMARD-IR patients, with 217 (49%) using baricitinib as monotherapy. Considering DAS-28-CRP as the primary outcome, at 3 and 6 months, 114/314 (36%) and 149/289 (51.6%) patients achieved remission, while those in low disease activity (LDA) were 62/314 (20%) and 46/289 (15.9%), respectively; finally at 12 months 81/126 (64%) were in remission and 21/126 (17%) in LDA. At all-timepoints up to 12 months, bDMARDs-naïve patients demonstrated a better clinical response, independently of MTX. A significant reduction in the OGC dose was observed at 3 and 12 months in all groups. The serum positivity for both rheumatoid factors (RF) and anti-citrullinated protein antibodies (ACPA) conferred a lower risk of stopping baricitinib due to inefficacy. Fifty-eight (13%) patients discontinued baricitinib due to adverse events, including thrombotic events and herpes zoster reactivation. CONCLUSIONS: Real-life data confirm the efficacy and safety profiles of baricitinib in patients with RA and provide evidence that drug survival is higher in bDMARDs-naïve and seropositive patients.

Observational study on the QUality of life of Italian Axial SpondyloARthritis patients (QUASAR): baseline data.

OBJECTIVES: To describe the baseline characteristics of the patients enrolled in the QUality of life in patients with Axial SpondyloARthritis (QUASAR) study in terms of quality of life (QoL), disease activity, therapy adherence, and work ability in a real-world setting. METHODS: QUASAR is an Italian multicentre, prospective 12-month observational study, including consecutive adult patients classified as axial spondyloarthritis (axSpA) according to the Assessment of SpondyloArthritis international Society criteria for axSpA. RESULTS: Of 512 patients enrolled in 23 rheumatology centres, 80.7% had ankylosing spondylitis (AS) and 19.3% had non-radiographic axSpA (nr-axSpA). Mean ages were 34.1±13.3 years at axSpA symptoms onset and 39.5±13.0 years at diagnosis. Of the patients, 51.4% presented with ≥1 extra articular manifestation (EAM); the most common were psoriasis (17.8%) and uveitis (16.4%). Patients with nr-axSpA and AS had similar EAM rates, disease activity, and QoL. Biologic disease-modifying anti-rheumatic drugs (bDMARDs; 83.2%) were the most commonly received medication, followed by conventional synthetic DMARDs (22.9%) and non-steroidal anti-inflammatory drugs (NSAIDs; 16.6%). At baseline, higher treatment satisfaction was reported with bDMARDs which, together with NSAIDs, were associated with the best overall scores for disease activity, function, and QoL in the overall population and AS subgroup. CONCLUSIONS: QUASAR is the first Italian prospective study that comprehensively evaluated a large axSpA patient sample in a real-world setting. This interim analysis at baseline confirmed that i) patients with AS and nr-axSpA have similar QoL and disease burden, ii) nearly all axSpA patients receive treatment, and iii) bDMARDs and NSAIDs, overall, yield better disease activity and QoL.

Non-specific interstitial pneumonia and features of connective tissue disease: What are the consequences of a different point of view?

Patients with Interstitial Lung Disease (ILD) without a definitive diagnosis of connective tissue diseases (CTD) were historically described as Undifferentiated Connective Tissue Disease (UCTD-ILD). Recently a new classification, Interstitial Pneumonia with Autoimmune Features (IPAF), has been proposed. Aim of this study was to describe the prevalence, clinical characteristics and prognostic factors of UCTD and IPAF subjects in a cohort of Non-Specific Interstitial Pneumonia (NSIP) patients. This retrospective, observational study enrolled 102 adult patients characterized by NSIP pattern on High Resolution Computed Tomography, without a specific diagnosis of CTD. Three groups were identified according to patients' characteristics: IPAF, UCTD or idiopathic NSIP (iNSIP). Forty percent, 27% and 55% of patients showed diagnostic criteria for IPAF, UCTD and iNSIP, respectively. No significant differences in age, gender, smoking habit, pulmonary function tests and three-year survival rate were observed among study groups. IPAF patients with antisynthetase antibodies positivity, in comparison to IPAF without antisynthetase antibodies positivity, showed more frequently an acute onset (44% vs 9%, p<0.012). The presence of autoimmune features seems not to be associated with better outcomes in NSIP patients. IPAF criteria seem to be more representative than UCTD criteria in identifying patients with autoimmune features. Further studies are needed to verify if IPAF should include patients with positive antisynthetase serology.