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OBJECTIVE: To review the evidence on barriers and facilitators to application of treat-to-target (T2T) in axial spondyloarthritis (axSpA) and psoriatic arthritis (PsA) in daily practice. METHODS: A systematic search was conducted in MEDLINE/Embase up to December 2023, focusing on axSpA/PsA. Any type of quantitative/qualitative original research was eligible for inclusion if barriers or facilitators to application of T2T were explored. In a qualitative synthesis, barriers/facilitators were classified by the level to which they apply (healthcare provider [HCP], patient, organisation). RESULTS: Of 28 included studies, most focused on PsA (n = 21/28). Studies included patients (n = 23/28), HCP (n = 4/28) or both (n = 1/28). In total, over 25 barriers and 15 facilitators to application of T2T were identified. At the HCP level, most studies focused on the measurement of the target, especially in PsA, highlighting that agreement among instruments was suboptimal. At the patient level, the role of patient-reported outcomes (PROs), while deemed relevant, was shown to act as a barrier to achieve targets that included PRO components. At the organisational level, the increased time and resources needed for T2T were considered a barrier, although it was noted that T2T could also reduce healthcare use and sick leave. Notably, for several components, no facilitators were identified at all. CONCLUSION: Various barriers and facilitators were identified, acting on several levels. Data in axSpA were scarce, as was evidence on certain components of T2T. Future research should address these knowledge gaps and explore how these barriers and facilitators could be targeted to improve application of T2T in practice.

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Background: Current management of mild-to-moderate ulcerative colitis (UC) involves monitoring clinical markers of disease activity, such as stool frequency (SF) and rectal bleeding (RB), and adjusting treatment accordingly. Our aim was to assess whether targeting treatment based on faecal calprotectin (FC) levels (treat-to-target; T2T) provides greater UC disease control versus a symptom-based approach. Methods: This was a pragmatic, randomised (1:1) controlled study of patients with mild-to-moderate UC (global Mayo score 2-6) treated with ≤2.4 g/day 5-aminosalicylic acid that compared the effectiveness of two management strategies with (interventional arm) and without (reference arm) FC home monitoring over 12 months of follow-up. Treatment was optimised in the interventional arm using FC values and clinical symptoms (PRO-2), while the reference arm used only PRO-2. Results: 193 patients completed the study. No significant difference was found for the primary endpoint (Mayo Endoscopic Subscore [MES] = 0 at 12 months). A numerical advantage for the interventional arm over the reference arm for the primary endpoint (37.0% vs. 33.4%, respectively) and for MES ≤ 1, RB = 0, and SF ≤ 1 at 12 months was found following imputation for missing data. The composite endpoint of MES = 0, RB = 0, and SF ≤ 1 at 12 months was achieved at a significantly higher rate in the interventional arm than the reference arm (effect size [ES]: 0.17, 95% CI 0.02-0.32; p < 0.05). A similar result was obtained for MES ≤ 1, RB = 0 and SF ≤ 1 (ES: 0.22; 95% CI 0.07-0.37; p < 0.05). Conclusions: T2T using FC monitoring was effective in patients with mild-to-moderate UC at 12 months. Further longer-term studies are required to confirm the results.

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The global cases of knee osteoarthritis (KOA) are projected to increase by 74.9% by 2050. Currently, over half of patients remain dissatisfied with their pain relief. This review addresses unmet needs for moderate-to-severe KOA pain; it offers evidence and insights for improved management. Italian experts from the fields of rheumatology, physical medicine and rehabilitation, orthopedics, primary care, and pain therapy have identified several key issues. They emphasized the need for standardized care protocols to address inconsistencies in patient management across different specialties. Early diagnosis is crucial, as cartilage responds better to early protective and structural therapies. Faster access to physiatrist evaluation and reimbursement for physical, rehabilitative, and pharmacological treatments, including intra-articular (IA) therapy, could reduce access disparities. Concerns surround the adverse effects of oral pharmacological treatments, highlighting the need for safer alternatives. Patient satisfaction with corticosteroids and hyaluronic acid-based IA therapies reduces over time and there is no consensus on the optimal IA therapy protocol. Surgery should be reserved for severe symptoms and radiographic KOA evidence, as chronic pain post-surgery poses significant societal and economic burdens. The experts advocate for a multidisciplinary approach, promoting interaction and collaboration between specialists and general practitioners, to enhance KOA care and treatment consistency in Italy.

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OBJECTIVES: Patients with gout need to adhere to medication over time to achieve good outcomes. We assessed self-reported adherence to medication with urate lowering therapy (ULT) 5 years after a treat-to-target intervention and studied how non-adherence was related to baseline demographic and disease variables. METHODS: Patients in the NOR-Gout observational study were included after a recent gout flare and serum urate >360 µmol/L. Patients (mean age 56.2 (S.D. 13.6), 94.5% males, 17.2% with tophi) attended tight-control visits over one year with escalating urate lowering therapy using a treat-to-target strategy. Five-year follow-up included the Medication Adherence Report Scale (MARS-5) questionnaire (range 5-25) for adherence. Flares and SUA target achievement were compared for 5-year adherence to medication. RESULTS: At 5-years most of the 163 patients used ULT (95.1%). MARS-5 adherence scores after 5 years were high (median 24, interquartile range 22-25). Patients in the lowest MARS-5 quartile had, compared to the highest quartile, more often a flare during the last year of follow-up (33.3% vs. 9.5%, P=0.004), and reached the 5-yr serum urate treatment target less frequently (45.2% vs. 87.5%, P<0.001). Baseline lower age (OR 0.56, 95%CI 0.39-0.79), non-European origin (OR 0.22, 95%CI 0.06-0.80), lower SF-36 mental health scores (OR 0.94, 95%CI 0.91-0.98) and less joint pain during last flare (OR 0.73, 95%CI 0.58-0.92) were independent risk factors for non-adherence to medication. CONCLUSIONS: Patients reported after 5 years high adherence to medication. Non-adherence was related to more flares and less urate target achievement. Younger age and non-European origin were associated with non-adherence.

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BACKGROUND/PURPOSE: Endoscopic remission is presently recognized as the standard therapeutic target in the treatment of ulcerative colitis (UC). However, achieving histological remission is increasingly viewed as a pivotal objective. This study investigates the effects of attaining completely histological remission on the clinical outcomes for UC patients with a high disease burden who have already reached endoscopic remission. This is the inaugural study to concentrate on this specific patient demographic. METHODS: This retrospective cohort study enrolled moderate-to-severe, biologics-experienced UC patients with completely endoscopic remission (Mayo endoscopic subscore of 0) between June 2017 and October 2023 at Chang Gung Memorial Hospital, Linkou. Patients were classified into histological remission (HR) and non-histological remission (non-HR) groups based on the Nancy index (NI). HR was defined as an NI score of 0, with all other patients categorized as non-HR. The definition of flare-ups was based on both clinical and endoscopic evidence. Comparative analyses focused on baseline characteristics and clinical outcomes at follow-up. RESULTS: A total of 42 patients (HR group: 23, non-HR group: 19) were included. The average follow-up duration was 17.6 months. Baseline characteristics were comparable between the groups. At the end of follow-up, the HR group showed a significantly lower rate of acute flare-ups (26.1% vs. 68.4%, P = 0.006). Although not statistically significant, the HR group also experienced fewer emergency department visits and hospital admissions. CONCLUSIONS: For moderate-to-severe, biologics-experienced UC patients in endoscopic remission, achieving completely histological remission is associated with a substantial reduction in flare-ups, suggesting its potential as a valuable therapeutic target.

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INTRODUCTION: Treat-to-target (T2T) strategies aim to facilitate tight disease control to improve outcomes. No previous studies evaluated prospectively the feasibility and impact of the T2T strategy in routine practice in childhood-onset SLE (cSLE). METHODS: Adolescents and young adults (AYA) with cSLE were recruited for T2T implementation from a large tertiary centre over a period of 6 months and followed up at least twice over a prospective period of 12 months. RESULTS: During Oct 2022-April 2023, 135/162 (83.3%) AYA with cSLE had disease scores evaluated at their routine appointment to enable inclusion in the study, and 122/135 (91.2%) had their disease assessed, and a suitable treatment target agreed and documented at each routine clinical appointment over the 12 months prospective follow-up. T2T strategy led to improved disease control at 12 months: more AYA with cSLE achieved clinical remission off steroids (4.1% vs. 10.7%, P = 0.048), or minimum childhood-lupus low disease activity (cLLDAS) (81.9% vs. 91.8%, P = 0.022). Achieving minimum cLLDAS for longer than 3 months was associated with reduced damage accrual (HR = 1.7; 95%CI = 1.1-2.5; P < 0.0001) at 12 months. CONCLUSION: T2T strategy implementation was achievable and associated with improved cSLE control. Spending at least 3/12 months in cLLDAS led to less damage accumulation. Key Points • This is the first large prospective study in AYA with cSLE to evaluate the impact of active T2T implementation in routine practice. • T2T strategies were feasible to implement in 122/135 (91.2%) AYA with cSLE in routine practice. • The T2T approach was associated with improved disease control and decreased damage accrual at 12 months.

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Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that is characterised by a wide range of symptoms and a risk for irreversible organ damage, leading to increased morbidity and mortality. To improve long-term outcomes, innovative therapeutic goals have been explored, including attainment and maintenance of remission or low disease activity, with minimal use of glucocorticoids. Other goals encompass early diagnosis, potent yet less toxic therapies, appropriate glucocorticoid tapering, and better quality of life for the patients. Implementing a treat-to-target (T2T) approach involves treatment adjustments to achieve predefined objectives. Evidence from other chronic diseases, like hypertension and diabetes, supports the success of target-based approaches. In rheumatic diseases, the multitude of clinical features adds complexity to T2T strategies, but in rheumatoid arthritis, T2T has yielded improved outcomes. The application of T2T in SLE requires realistic therapeutic goals and practical tools for their measurement. International task forces have developed T2T recommendations for SLE, focusing on limiting disease activity, preventing organ damage, and minimising glucocorticoid use, while considering patients' quality of life. Advancements in defining clinically meaningful remission and low disease activity states, coupled with promising novel therapies, have spurred progress in the management of SLE.

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BACKGROUND: Patient management in rheumatoid arthritis (RA) has evolved to a "treat-to-target" (T2T) approach, which entails intensive treatment and regular follow-up with the goal of achieving low levels of disease activity or clinical remission. Even though a T2T approach is endorsed by professional organizations and yields superior outcomes, its implementation remains incomplete. EVEREST (EleVatE care in RhEumatoid arthritiS with Treat-to-target) is a quality-improvement initiative designed to improve the widespread implementation of a personalized T2T strategy and enable patients with RA to reach their full potential for remission. We describe the Brazilian results from the Global T2T Survey, first part of the EVEREST program. METHODS: Between June and September 2022, we conducted an online survey targeting rheumatologists in Brazil. Our objective was to evaluate the barriers and knowledge gaps hindering the effective implementation of T2T strategies. To achieve this, we employed a set of multiple-choice questions specifically crafted to elicit responses categorized in a structured order. RESULTS: 166 rheumatologists participated in the survey, 51% of them with more than 21 years of experience in rheumatology. Regarding the perceived challenges in the management of RA in clinical practice, the highest percentage of agreement/strong agreement among the participants was related to the contradictory results of disease activity measures (60%). In terms of the main barriers to assess the disease activity in clinical practice, the lack of adherence to treatment and contradictory assessments between patient-reported outcomes and composite measures were indicated by 75% and 59% of the participants, respectively, as a moderate/serious barrier. The most frequently knowledge and skill gaps related to the management of RA pointed out by the participants were on the difficulty to assess patients' health literacy (54% stated to have no more than intermediate knowledge on standardized methods to assess it and 43% no more than intermediate skills on determining the level of health literacy of the patients). In general, the use of tools to support the management of RA patients in clinical practice was indicated to be unusual by the participants. Self-reflection questionnaires, patient education materials and treatment consideration checklists were pointed out as the least frequently used tools (85%, 64% and 62% of the participants stated to use them never, rarely, or only sometimes, respectively). CONCLUSIONS: Our findings indicate a greater need for design, selection, and uptake of practical strategies to further improve communication between healthcare providers and patients with RA, as well as for promoting well-informed, collaborative decision-making in their care.

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OBJECTIVES: Cryopyrin-Associated Periodic Syndromes (CAPS) encompasses a spectrum of Interleukin-1 (IL-1) driven systemic diseases with dramatic individual and societal burden. The study aimed to identify parameters and instruments to refine real-life Treat-to-Target (T2T) strategies and control CAPS disease activity. METHODS: A single-centre, longitudinal study of consecutive children and adults diagnosed with CAPS and treated with anti-IL-1 therapy was performed. Demographics, clinical phenotype and NLRP3 gene variants in addition to serial inflammatory markers and Physician and Patient/Parent Global Assessments (PGA/PPGA) were captured. Effectiveness of anti-IL-1 T2T strategies and factors associated with therapy escalation were determined. RESULTS: A total of 54 CAPS patients with 759 follow-up visits were included; 31/54 (57%) were children; the median follow-up was 108 months (12-620). The moderate CAPS phenotype was present in 89%; overall 59% had pathogenic/likely pathogenic NLRP3 variants. Therapy adjustments were documented in 50/759 visits including 35 therapy escalations and 15 reductions; 74% of the therapy escalation visits were for children. At time of visit, 63% showed moderate, 37% severe clinical disease activity. Inflammatory markers remained largely normal. Significant improvement was observed in both PGA/PPGA throughout the study (p< 0.01). At the last follow-up, 96% of patients achieved remission. CONCLUSION: Guidance for refining real-life T2T strategies in CAPS cohorts can be drawn from serial assessments of PGA and PPGA reliably reflecting changes in disease activity. Individual parameters including age and NLRP3 gene variants are important predictors, while the sensitivity of inflammatory markers is limited due to the confounding anti-IL-1 therapy.

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Background and Aim: The treatment strategy for patients with ulcerative colitis (UC) in clinical remission who have not achieved mucosal healing is unclear. This study aimed to determine the risk factors of relapse in patients in clinical remission with endoscopic activity. Methods: This retrospective, single-center study included patients with UC who underwent colonoscopy (CS) and were in clinical remission with endoscopic activity. Characteristics were compared between patients who relapsed within 2 years after CS and those who did not. A Cox proportional hazards regression model was used to identify risk factors contributing to clinical relapse. Recent worsening in bowel symptoms was defined as increase in bowel frequency and/or increase in abdominal pain within approximately 1 month based on the descriptions in the medical charts. Results: This study regarded 142 patients in clinical remission with an endoscopic activity of Mayo endoscopic subscore (MES) of ≥1 as eligible, and 33 (23%) patients relapsed during the observation period. Recent worsening of bowel symptoms was a significant risk factor for clinical relapse (hazard ratio [HR]: 3.02, 95% confidence interval [CI]: 1.34-6.84). This was particularly evident in patients with MES of 2 (HR: 5.16, 95% CI: 1.48-18.04), whereas no risk factors were identified in patients with MES of 1. The presence or absence of therapeutic intervention just after CS did not significantly affect clinical relapse. Conclusion: Recent worsening in bowel symptoms was a significant risk factor for clinical relapse in patients with UC who were in clinical remission with endoscopic activity.

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In an aging population, the prevalence and burden of diabetes mellitus, diabetic retinopathy, and vision-threatening diabetic macular edema (DME) are only expected to rise around the world. Similarly to other complications of diabetes mellitus, DME requires long-term management. This article aims to review the current challenges associated with the long-term management of DME, opportunities to improve outcomes for patients, and to develop a treat-to-target strategy based on macular morphology. At present, intravitreal anti-vascular endothelial growth factor (VEGF) therapy is the standard of care for the management of DME; however, best-achievable vision outcomes with treatment are reliant on frequent injections and close monitoring, which are difficult to maintain in current clinical practice because of the burden this imposes on patients. Achieving and maintaining good vision with treatment are the most important factors for patients with DME. Landmark trials have shown that vision gains with anti-VEGF therapy are typically accompanied by anatomical improvements (e.g., reductions in retinal thickness); therefore, multimodal imaging measures of macular morphology are often used in patients with DME to guide real-world treatment decisions. We would like to propose a hypothetical treat-to-target algorithm to guide physicians on treatment strategies for the long-term management of DME. Alternative measures of retinal fluid (e.g., persistence, stability, location) may be stronger predictors of visual acuity in DME, although further research is required to confirm whether alternate quantifiable biomarkers such as subretinal fluid and intraretinal fluid volumes can be used as a biomarker of clinical improvement. Identifying novel biomarkers and treatments that target neuroinflammation and neurodegeneration, improving patient-physician communication around treatment adherence, and using treat-to-target measures may help to ensure that the long-term benefits of treatment are realized.

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INTRODUCTION: Psoriatic arthritis (PsA) is a chronic immunoinflammatory disease of the enthesis and adjacent synovium, skin, and nail, which early diagnosis may be crucial for starting a prompt therapeutic intervention. Theoretically, early treatment offers the advantage of acting on the reduction of the articular damage progression since initial phases of the disease. AREAS COVERED: This review explores the challenges of clinical-diagnostic aspects and the underlying pathophysiology of early PsA phases, as well as the evidence evaluating the impact of early intervention on disease outcomes. EXPERT OPINION: Main instruments for early PsA diagnosis include recognizing synovial-entheseal inflammatory signs at onset, improving screening PsA high-risk subjects, and increasing disease knowledge of physicians and patients with psoriasis or familial history. PsA continues to significantly impact on the Quality of Life of patients affected by the disease, making necessary to deeply study clinical manifestations, risk factors, and underlying immunoinflammatory mechanisms, as well as to identify biomarkers for early identification. Additionally, it remains a need to increase more evidence on understanding how early treatment of PsA and of psoriasis might influence the course of the disease.

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Objective: To collect real-world data regarding the attainment of the early-achieved lupus low disease activity state (LLDAS) in systemic lupus erythematosus (SLE) patients receiving telitacicept or belimumab treatment, and identify factors predictive of target achievement. Methods: Eighty-seven SLE patients who received telitacicept (N=42) or belimumab (N=45) were retrospectively reviewed in this observational study. Clinical and laboratory data, disease activity assessment, and glucocorticoid dosage were collected for analysis. Achieving LLDAS at least once within 24 weeks post-treatment was considered as early-achieved LLDAS. Multivariate regression was used to assess baseline predictive variables for early-achieved LLDAS. Subgroup analysis and interaction tests were also performed to examine the robustness of the results across different sets of baseline characteristics. Prognostic stratification for early-achieved LLDAS was established based on the identified risk factors. Results: During the 24-week follow-up period, LLDAS was achieved by at least one time in 49.43% (43/87) of the patients, with sustained achievement through week 24 observed in 36 out of these 43 patients (83.27%). Multivariate analysis revealed that early achievement of LLDAS was particularly observed in patients with higher baseline lymphocyte counts [HR=1.79, 95% CI (1.19-2.67), P=0.005]and serum albumin levels [HR=1.06, 95% CI (1.003-1.12), P=0.039]. Conversely, hematological involvement [HR=0.48, 95% CI (0.24-0.93), P=0.031] predicted lower attainment of early-achieved LLDAS. The use of telitacicept was associated with a reduced risk of failing to attain early achievement of LLDAS [HR=2.55, 95% CI (1.36-4.79), P=0.004]. Subgroup analyses and interaction tests showed a stable relationship between the telitacicept use and LLDAS achievement. The results remained consistent across all subgroup analyses. Significant differences (P<0.001) were observed in the Kaplan-Meier estimates for LLDAS among risk groups based on the number of identified risk factors. Conclusion: The achievement of LLDAS is attainable in the management of SLE patients undergoing treatment with telitacicept or belimumab in real-life clinical practice. Baseline lymphocyte counts, serum albumin levels, hematological involvement and the use of telitacicept serve as robust predictors for early-achieved LLDAS, helping to identify patients who are likely to benefit on the treatment.

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Background: This study aims to explore the clinical value of low disease activity state (LDAS) in the treat-to-target strategy of pediatric systemic lupus erythematosus (pSLE) and find the risk factors for never reaching LDAS. Methods: A total of 272 children with SLE who were diagnosed and followed up in two tertiary hospitals in China during the period from January 2012 to December 2019 were involved in this study, and the clinical presentation, pathology, and treatment were retrospectively studied. Results: The male-to-female ratio was 1:5.2, the age at diagnosis was 11.1 years (IQR, 9.8-13.1 years), the disease duration was 1.0 month (IQR, 0.5-2.0 months), and follow-up was 36.5 months (IQR, 25.7-50.9 months). During follow-up, 230 children achieved LDAS, and 42 were never been in. Male (P = 0.018), mucosal ulcer (P = 0.048), liver function damage (P = 0.026), cardiac effusion (P = 0.034), anemia (P = 0.048), urine red blood cells (P = 0.017), urinary leukocytes (P = 0.032), and endothelial cell proliferation in renal biopsy (P = 0.004)-these indexes have statistical differences between the two groups in the baseline. At baseline, endothelial cell proliferation (P = 0.02) is an independent risk factor for never achieving LDAS by multivariate logistic analysis. During follow-up, non-compliance was a risk factor for never achieving LDAS by comparing between groups. Children with biologics achieved LDAS at a higher rate than children without biologics (P = 0.038). The proportion of organ damage in patients never been in LDAS was significantly higher than that in patients who achieved LDAS (P < 0.001). Conclusion: Endothelial cell proliferation in renal biopsy and non-compliance during follow-up were independent risk factors for never achieving LDAS. At the end of the follow-up, the organ damage in the remission group was similar to that in the LDAS group, indicating that LDAS can be used as a target for pSLE treatment.

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BACKGROUND: Crohn's disease and ulcerative colitis (UC) are inflammatory bowel diseases (IBD) characterized by a progressive nature of the disease resulting in subsequent intestinal damage, limited efficacy of current treatments and suboptimal disease management and a significant burden for patients. OBJECTIVES: The IBD-PODCAST study aims to estimate the proportion of Crohn's disease and UC patients with suboptimal disease control (SDC) in a real-world setting. METHODS: A non-interventional and cross-sectional study was conducted across 103 sites in 10 countries (Austria, Belgium, Canada, Germany, Greece, Italy, Portugal, Spain, Turkey, and UK). Criteria for SDC were based on STRIDE-II criteria and adapted by an expert panel. RESULTS: 2185 patients (Crohn's disease: n = 1,108, UC: n = 1077) with a mean (SD) age of 44.0 (14.8) years and mean (SD) disease duration of 12.4 (9.2) years were included (52.2% male). Ileal involvement was present in 39.1% of Crohn's disease patients, 35.3% of UC patients had extensive colitis. 77.3% of Crohn's disease and 65.3% of UC patients were on targeted immunomodulators and, according to STRIDE-II-based treatment phases, 85.6% of Crohn's disease and 85.4% of UC patients were assigned to the long-term treatment phase. SDC was detected in 52.2% of Crohn's disease and 44.3% of UC patients predominantly due to impaired quality of life (QoL), clinically significant extraintestinal manifestations, steroid overuse, signs of active inflammation in UC and Crohn's disease, and active fistulas in Crohn's disease. More than one criterion was seen in 37% of patients with SDC. Opportunities for on-label treatment optimization were observed in 49% of Crohn's disease and 61% of UC patients on advanced therapy. CONCLUSION: The high percentage of SDC in this global, real-world cohort suggests a large disease burden and high unmet medical need in IBD patients. Future analysis should focus on monitoring and responding to SDC in this cohort and on patients' QoL.

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BACKGROUND: The concept of treat-to-target (T2T), a treatment strategy in which treatment is directed to reach and maintain a defined goal such as remission or low disease activity (LDA), has been explored for several diseases including rheumatic diseases such as rheumatoid arthritis (RA). However, a comprehensive review of T2T in all rheumatic diseases has not recently been undertaken. OBJECTIVE: To perform a systematic review and meta-analysis of the efficacy and safety of a T2T strategy in the management of adult patients with inflammatory rheumatic diseases. METHODS: PUBMED, EMBASE and CINAHL were searched from January 1990 to December 2023 using key words related to a T2T strategy and rheumatic diseases; T2T strategy clinical trials or observational studies were included. Clinical, physical function and radiologic outcomes, cost-effectiveness, and adverse events (AEs) of the T2T strategies were investigated and a random-effect meta-analysis was conducted for the most commonly used outcomes in RA studies. RESULTS: The search identified 7896 studies, of which 66 fit inclusion criteria, including 50 in RA, 3 in psoriatic arthritis (PsA), 1 in spondyloarthritis (SpA) and 12 in gout. For the studies comparing a T2T strategy with usual care (UC) in RA, 83.3% (20/24) showed a T2T strategy could achieve significantly better clinical outcomes, and the meta-analysis showed that patients treated with a T2T strategy were more likely to be in remission (pooled RR: 1.68 (1.47-1.92), p<0.001] and achieve DAS-28 response (pooled standardised mean difference (SMD): 0.47 (0.26-0.69), P<0.001] at 1 year than patients treated with UC. Sensitivity analyses showed that a T2T strategy with a predefined treatment protocol had better clinical efficacy than that without protocol. In terms of improving physical function and health-related quality of life (HRQoL), 11/19 (57.9%) studies found a T2T strategy was significantly more likely to achieve these than UC, with the meta-analysis for the mean change of HAQ score supporting this conclusion (pooled SMD: 1.48 (0.46-2.51), p=0.004). Five out of 9 studies (55.6%) demonstrated greater benefit regarding radiographic progression from a T2T strategy. In terms of cost-effectiveness and AEs, 2/2 studies found a T2T strategy was more cost-effective than UC and 8/8 studies showed no tendency for AEs to occur more often with a T2T strategy. For the studies in PsA and SpA, a T2T strategy was also demonstrated to be more effective than UC in clinical and functional benefits, but not in radiologic outcomes. All gout studies showed that sUA level could be controlled more effectively with a T2T strategy, and 2 studies revealed that the T2T strategy could inhibit erosion development or crystal deposition. CONCLUSIONS: For patients with active RA, a T2T strategy has been shown in mulitple studies to increase the likelihood of achieving clinical response and improving HRQoL without increasing economic costs and AEs. Limited studies have shown clinical and functional benefits from T2T strategies in active PsA and SpA. A T2T strategy has also been found to improve clinical and radiologic outcomes in gout. T2T trials in other rheumatic diseases are lacking.

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BACKGROUND: Rheumatoid arthritis (RA) is characterized by intermittent flares of disease activity with a significant impact on patients' lives. However, distinguishing flare from daily symptom variation may be approached differently by patients and healthcare providers, potentially hampering shared decision-making when treating RA. OBJECTIVES: To provide a comprehensive overview of RA flare definitions reported in the published literature, and to compare these with patients' perceptions of the flare concept according to qualitative evidence. METHODS: A systematic search was conducted on August 30th, 2022, and updated on September 30th, 2023, for both quantitative and qualitative studies reporting "flare" or related terms in the context of RA. We searched the following databases: Pubmed, EMBASE, Web of Science, Cochrane Library, and CINAHL. Definitions of RA flare reported in quantitative studies were summarized descriptively. In parallel, a thematic synthesis of qualitative studies was performed to outline patients' views on the concept of flare, and to compare these with the currently used definitions. RESULTS: Among 32,864 potentially eligible records, 304 studies were included, 5 of which used qualitative/mixed methods to study patients' perceptions of flare. Remarkably, 62 different definitions for RA flare were reported, with many studies reporting more than one. The most commonly used definitions (54 %) were based on disease activity indices, with DAS28-based definitions the most widely applied (84 %). For each of the disease activity indices, several different cutoffs to define flares were used. Various definitions based on physician report were applied in 24 % of cases, while patient-reported criteria represented only 15 % of the applied definitions. Thematic synthesis of the qualitative/mixed-methods studies highlighted the multidimensional impact of flares on patients' lives, resulting in five sequential overarching themes: "Living with RA: a balancing act", "Flare: a disturbance of this balance", "The biopsychosocial impact of flares", "Self-management: the first line of defense", and "Medical help: the last resort". In turn, these five themes were underpinned by a central theme of "Uncertainty and variability". CONCLUSION: We found a striking heterogeneity regarding the conceptualization and measurement of RA flare in the published literature. Although qualitative evidence highlighted the considerable impact of flares on patients' wellbeing, the majority of reported flare definitions were not based on patient report. There is a need to bridge this gap by aligning patients' and healthcare professionals' views on what distinguishes a flare from acceptable symptom variability when living with RA.

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BACKGROUND: Etanercept has been studied in doses up to 0.8 mg/kg/week (max 50 mg/week) in juvenile idiopathic arthritis (JIA) patients. In clinical practice higher doses are used off-label, but evidence regarding the relation with outcomes is lacking. We describe the clinical course of JIA-patients receiving high-dose etanercept (1.6 mg/kg/week; max 50 mg/week) in the BeSt for Kids trial. METHODS: 92 patients with oligoarticular JIA, RF-negative polyarticular JIA or juvenile psoriatic arthritis were randomised across three treat-to-target arms: (1) sequential DMARD-monotherapy (sulfasalazine or methotrexate (MTX)), (2) combination-therapy MTX + 6 weeks prednisolone and (3) combination therapy MTX + etanercept. In any treatment-arm, patients could eventually escalate to high-dose etanercept alongside MTX 10mg/m2/week. RESULTS: 32 patients received high-dose etanercept (69% female, median age 6 years (IQR 4-10), median 10 months (7-16) from baseline). Median follow-up was 24.6 months. Most clinical parameters improved within 3 months after dose-increase: median JADAS10 from 7.2 to 2.8 (p = 0.008), VAS-physician from 12 to 4 (p = 0.022), VAS-patient/parent from 38.5 to 13 (p = 0.003), number of active joints from 2 to 0.5 (p = 0.12) and VAS-pain from 35.5 to 15 (p = 0.030). Functional impairments (CHAQ-score) improved more gradually and ESR remained stable. A comparable pattern was observed in 11 patients (73% girls, median age 8 (IQR 6-9)) who did not receive high-dose etanercept despite eligibility (comparison group). In both groups, 56% reached inactive disease at 6 months. No severe adverse events (SAEs) occurred after etanercept dose-increase. In the comparison group, 2 SAEs consisting of hospital admission occurred. Rates of non-severe AEs per subsequent patient year follow-up were 2.27 in the high-dose and 1.43 in the comparison group. CONCLUSIONS: Escalation to high-dose etanercept in JIA-patients who were treated to target was generally followed by meaningful clinical improvement. However, similar improvements were observed in a smaller comparison group who did not escalate to high-dose etanercept. No SAEs were seen after escalation to high-dose etanercept. The division into the high-dose and comparison groups was not randomised, which is a potential source of bias. We advocate larger, randomised studies of high versus regular dose etanercept to provide high level evidence on efficacy and safety. TRIAL REGISTRATION: Dutch Trial Register; NTR1574; 3 December 2008; https://onderzoekmetmensen.nl/en/trial/26585 .

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INTRODUCTION: The purpose of this study was to evaluate whether bone mineral density (BMD) ≥ -2.5 SD could be used as the treat-to-target (T2T) goal when treating osteoporosis with teriparatide (TPTD) and alendronate (ALN), and to investigate the relationship with incident vertebral fracture by re-analyzing data from a randomized, controlled trial (JOINT-05) involving postmenopausal Japanese women at high fracture risk. MATERIALS AND METHODS: Participants received sequential therapy with once-weekly TPTD for 72 weeks, followed by ALN for 48 weeks (TPTD-ALN group) or ALN monotherapy for 120 weeks (ALN group). BMDs were measured at the lumbar spine (L2-4), total hip, and femoral neck at 0, 24, 48, 72, and 120 weeks by dual-energy X-ray absorptiometry. The T2T goal was BMD ≥ -2.5 SD, and the endpoint was the proportion of participants with baseline BMD < -2.5 SD in three measurement sites achieving BMD ≥ -2.5 SD. RESULTS: A total of 559 participants were selected. BMD ≥ -2.5 SD at 120 weeks in the L2-4, total hip, and femoral neck sites was achieved in 20.5%, 23.1%, and 5.9%, respectively, in the TPTD-ALN group and 22.2%, 11.7%, and 7.3%, respectively, in the ALN group. Incident vertebral fractures occurred in areas of both lower and high BMD. CONCLUSION: During the 1.5-year treatment period, more than 20% of participants achieved BMD ≥ -2.5 SD as a T2T goal at L2-4. Since the achievement level differed depending on the BMD measurement site, the appropriate site should be selected according to the baseline BMD level.

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OBJECTIVE: To assess whether using ultrasound (US) in addition to clinical information versus only clinical information in a treat-to-target (T2T) strategy leads to more clinical remission and to less radiographic progression in RA. METHODS: Patients with RA from the 2-year prospective BIODAM cohort were included. Clinical and US data (US7-score) were collected every 3 months and hands and feet radiographs every 6 months. At each visit, it was decided whether patients were treated according to the clinical definition of T2T with DAS44 remission as benchmark (T2T-DAS44). T2T-DAS44 was correctly applied if: (i) DAS44 remission had been achieved or (ii) if not, treatment was intensified. A T2T strategy also considering US data (T2T-DAS44-US) was correctly applied if: (i) both DAS44 and US remission (synovitis-score < 2, Doppler-score = 0) were present; or (ii) if not, treatment was intensified. The effect of T2T-DAS44-US on attaining clinical remission and on change in Sharp-van der Heijde score compared to T2T-DAS44 was analysed. RESULTS: A total of 1016 visits of 128 patients were included. T2T-DAS44 was correctly followed in 24% of visits and T2T-DAS44-US in 41%. DAS44 < 1.6 was achieved in 39% of visits. Compared to T2T-DAS44, using the T2T-DAS44-US strategy resulted in a 41% lower likelihood of DAS44 remission [OR (95% CI): 0.59 (0.40;0.87)] and had no effect on radiographic progression [ß(95% CI): 0.11 (- 0.16;0.39)] assessed at various intervals up to 12 months later. CONCLUSION: Our results do not suggest a benefit of using the US7-score in addition to clinical information as a T2T benchmark compared to clinical information alone. Key Points • Ultrasound has a valuable role in diagnostic evaluation of rheumatoid arthritis, but it is unclear whether adding ultrasound to the clinical assessment in a treat-to-target (T2T) strategy leads to more patients achieving remission and reduction in radiographic progression. • Our data from a real-world study demonstrated that adding information from ultrasound to the clinical assessment in a T2T strategy led to a lower rather than a higher likelihood of obtaining clinical remission as compared to using only clinical assessment. • Our data demonstrated that adding ultrasound data to a T2T strategy based only on clinical assessment did not offer additional protection against radiographic progression in patients with RA. • Adding US to a T2T strategy based on clinical assessment led to far more treatment intensifications (with consequences for costs and exposure to adverse events) without yielding a meaningful clinical benefit.

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