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Stamp LK, Horne A, Mihov B, Drake J, Haslett J, Chapman P, Frampton C, Dalbeth N. Predicting Gout Flares in People Starting Allopurinol Using the Start-Low Go-Slow Dose Escalation Strategy. Arthritis Care Res (Hoboken) 2024; 76:1371-1378. [PMID: 38766703 DOI: 10.1002/acr.25376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/30/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
OBJECTIVE The study objective was to determine predictors of gout flare when commencing allopurinol using the "start-low go-slow" dose escalation strategy. METHODS A post hoc analysis of a 12-month double-blind placebo-controlled noninferiority trial with participants randomized 1:1 to colchicine 0.5 mg daily or placebo for the first six months was undertaken. Multivariate logistic regression models were used to identify independent predictors of gout flares in the first and last six months of the trial. RESULTS Multivariable analysis revealed a significant association between risk of a gout flare in the first six months and flare in the month before starting allopurinol (odds ratio [OR] 2.65, 95% confidence interval [CI] 1.36-5.17) and allopurinol 100 mg starting dose (OR 3.21, 95% CI 1.41-7.27). The predictors of any gout flares in the last six months of the trial, after stopping colchicine or placebo, were having received colchicine (OR 2.95, 95% CI 1.48-5.86), at least one flare in the month before stopping study drug (OR 5.39, 95% CI 2.21-13.15), and serum urate ≥0.36 mmol/L at month 6 (OR 2.85, 95% CI 1.14-7.12). CONCLUSION Anti-inflammatory prophylaxis when starting allopurinol using the "start-low go-slow" dose escalation strategy may be best targeted at those who have had a gout flare in the month before starting allopurinol and are commencing allopurinol 100 mg daily. For those with ongoing gout flares during the first six months of starting allopurinol who have not yet achieved serum urate target, a longer period of prophylaxis may be required.
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Affiliation(s)
- Lisa K Stamp
- University of Otago, Christchurch, Christchurch, and Te Whatu Ora, Waitaha, New Zealand
| | - Anne Horne
- University of Auckland, Auckland, New Zealand
| | | | - Jill Drake
- University of Otago, Christchurch, Christchurch, New Zealand
| | - Janine Haslett
- University of Otago, Christchurch, Christchurch, New Zealand
| | | | | | - Nicola Dalbeth
- University of Auckland, Auckland, and Te Whatu Ora, Te Toka Tumai, New Zealand
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Barry A, Helget LN, Androsenko M, Wu H, Kramer B, Newcomb JA, Brophy MT, Davis-Karim A, England BR, Ferguson R, Pillinger MH, Neogi T, Palevsky PM, Merriman TR, O'Dell JR, Mikuls TR. Comparison of Gout Flares With the Initiation of Treat-to-Target Allopurinol and Febuxostat: A Post-Hoc Analysis of a Randomized Multicenter Trial. Arthritis Rheumatol 2024; 76:1552-1559. [PMID: 38925627 PMCID: PMC11421957 DOI: 10.1002/art.42927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/06/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024]
Abstract
OBJECTIVE Initiating urate-lowering therapy (ULT) in gout can precipitate arthritis flares. There have been limited comparisons of flare risk during the initiation and escalation of allopurinol and febuxostat, administered as a treat-to-target strategy with optimal anti-inflammatory prophylaxis. METHODS This was a post-hoc analysis of a 72-week randomized, double-blind, placebo-controlled, noninferiority trial comparing the efficacy of allopurinol and febuxostat. For this analysis, the occurrence of flares was examined during weeks 0 to 24 when ULT was initiated and titrated to a serum urate (sUA) goal of less than 6 mg/dl (<5 mg/dl if tophi). Flares were assessed at regular intervals through structured participant interviews. Predictors of flare, including treatment assignment, were examined using multivariable Cox proportional hazards regression. RESULTS Study participants (n = 940) were predominantly male (98.4%) and had a mean age of 62.1 years with approximately equal proportions receiving allopurinol or febuxostat. Mean baseline sUA was 8.5 mg/dl and all participants received anti-inflammatory prophylaxis (90% colchicine). In a multivariable model, there were no significant associations of ULT treatment (hazard ratio [HR] 1.17; febuxostat vs allopurinol), ULT-dose escalation (HR 1.18 vs no escalation), prophylaxis type, or individual comorbidity with flare and no evidence of ULT-dose escalation interaction. Factors independently associated with flare risk during ULT initiation/escalation included younger age, higher baseline sUA, and absence of tophi. CONCLUSION These results demonstrate that gout flare risk during the initiation and titration of allopurinol is similar to febuxostat when these agents are administered according to a treat-to-target strategy using gradual ULT-dose titration and best practice gout flare prophylaxis.
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Affiliation(s)
- Austin Barry
- Veterans Affairs (VA) Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, Nebraska
| | - Lindsay N Helget
- Veterans Affairs (VA) Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, Nebraska
| | - Maria Androsenko
- VA Boston Cooperative Studies Program Coordinating Center, Boston, Massachusetts
| | - Hongsheng Wu
- VA Boston Cooperative Studies Program Coordinating Center, Boston, Massachusetts, and Babson College, Wellesley, Massachusetts
| | - Bridget Kramer
- Veterans Affairs (VA) Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, Nebraska
| | - Jeff A Newcomb
- Veterans Affairs (VA) Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, Nebraska
| | - Mary T Brophy
- VA Boston Cooperative Studies Program Coordinating Center and VA Boston Health Care System, Boston University, Boston, Massachusetts
| | - Anne Davis-Karim
- VA Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Albuquerque, New, Mexico
| | - Bryant R England
- Veterans Affairs (VA) Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, Nebraska
| | - Ryan Ferguson
- VA Boston Cooperative Studies Program Coordinating Center and Boston University School of Medicine, Boston, Massachusetts
| | - Michael H Pillinger
- VA New York Harbor Health Care System and New York University Grossman School of Medicine, New York, New York
| | - Tuhina Neogi
- Boston University School of Medicine, Boston, Massachusetts
| | - Paul M Palevsky
- VA Pittsburgh Health Care System and University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | | | - James R O'Dell
- Veterans Affairs (VA) Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, Nebraska
| | - Ted R Mikuls
- Veterans Affairs (VA) Nebraska-Western Iowa Health Care System and University of Nebraska Medical Center, Omaha, Nebraska
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Hao Y, Oon S, Nikpour M. Efficacy and safety of treat-to-target strategy studies in rheumatic diseases: A systematic review and meta-analysis. Semin Arthritis Rheum 2024; 67:152465. [PMID: 38796922 DOI: 10.1016/j.semarthrit.2024.152465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/29/2024]
Abstract
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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Affiliation(s)
- Yanjie Hao
- The University of Melbourne at St Vincent's Hospital, 29 Regent Street, Fitzroy, VIC 3065, Australia
| | - Shereen Oon
- The University of Melbourne at St Vincent's Hospital, 29 Regent Street, Fitzroy, VIC 3065, Australia; Department of Rheumatology, St. Vincent's Hospital Melbourne, 35 Victoria Parade, Fitzroy, VIC 3065, Australia.
| | - Mandana Nikpour
- The University of Melbourne at St Vincent's Hospital, 29 Regent Street, Fitzroy, VIC 3065, Australia; Department of Rheumatology, St. Vincent's Hospital Melbourne, 35 Victoria Parade, Fitzroy, VIC 3065, Australia; Sydney MSK Research Flagship Centre, The University of Sydney School of Public Health, Room 132, Edward Ford Building, Fisher Road, University of Sydney, NSW 2006, Australia; Royal Prince Alfred Hospital Institute of Rheumatology and Orthopedics, 59 Missenden Rd, Camperdown NSW 2050, Australia.
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Han L, Li R, Dalbeth N, Liu M, Yu Q, Jiang C, Ning C, Liu Z, He Y, Li M, Xue X, Jia F, Jia Z, Sun W, Zhang H, Lu J, Wang C, Li C. The value of musculoskeletal ultrasound in predicting gout flares in index joints: A prospective cohort study of people with gout starting urate-lowering therapy. Semin Arthritis Rheum 2024; 67:152418. [PMID: 38422901 DOI: 10.1016/j.semarthrit.2024.152418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/23/2024] [Accepted: 02/09/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVES To evaluate whether ultrasound findings of monosodium urate (MSU) crystal deposition predict frequent gout flares in index joints over 12 months. METHODS This single-center study enrolled people with at least one gout flare involving the MTP1, ankle or knee joint. The most painful or most frequently joint was identified as index joint for analysis. All participants were started on urate-lowering therapy and had an ultrasound scan of the index joints at the baseline visit. OMERACT scores (for tophus, double contour sign and aggregates) were used to analyze whether ultrasound scores predicted frequent (≥2) gout flares in the index joint over 12 months. RESULTS Frequent flares were significantly higher in those with ultrasound findings in all index joints (MTP1: tophus: 85.0% vs 46.0%, P < 0.001, aggregates: 78.8% vs 59.0%, P < 0.01; ankle: tophus: 54.6% vs 20.8%, P < 0.001; aggregates: 60.0% vs 35.9%, P < 0.05; knee: tophus: 68.4% vs 28.6%, P < 0.05). For the MTP1, for each 1-point increase in tophus score, the odds of frequent gout flares increased by 5.19 [(95%CI: 1.26-21.41), 7.91 [(95%CI: 2.23-28.14), and 13.79 [(95%CI: 3.79-50.20)] fold respectively. For the ankle, a tophus score of 3 markedly improved the prediction of the frequent flares [OR= 9.24 (95%CI=2.85-29.91)]. Semi-quantitative sum scores were associated with frequent flares with an OR (95%CI) of 13.66 (3.44-54.18), P < 0.001 at the MTP1, 7.05 (1.98-25.12), P < 0.001 at the ankle. CONCLUSION Ultrasound features of MSU crystal deposition at the MTP1 and knee predict subsequent risk of frequent gout flares in the same joints following initiation of urate-lowering therapy, with the highest risk in those with high tophus scores.
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Affiliation(s)
- Lin Han
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Runze Li
- Department of Medicine, Qingdao University, Qingdao, PR China
| | - Nicola Dalbeth
- Department of Medicine, University of Auckland, Auckland, New Zealand
| | - Mingdi Liu
- Department of Rehabilitation, Qingdao Traditional Chinese Medicine Hospital (Qingdao Hiser Hospital), Qingdao, PR China
| | - Qing Yu
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Caiyun Jiang
- Department of Ultrasound, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Chunping Ning
- Department of Ultrasound, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Zhen Liu
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Yuwei He
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Maichao Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Xiaomei Xue
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Fenghao Jia
- Department of Psychiatry, Xi 'an Medical University, Xi 'an, PR China
| | - Zhaotong Jia
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Wenyan Sun
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Hui Zhang
- Institute of Metabolic Diseases, Qingdao University, Qingdao, PR China
| | - Jie Lu
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Can Wang
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China
| | - Changgui Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, PR China; Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, PR China.
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5
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Russell MD, Ameyaw-Kyeremeh L, Dell’Accio F, Lapham H, Head N, Stovin C, Patel V, Clarke BD, Nagra D, Alveyn E, Adas MA, Bechman K, de la Puente MA, Ellis B, Byrne C, Patel R, Rutherford AI, Cantle F, Norton S, Roddy E, Hudson J, Cope AP, Galloway JB. Implementing treat-to-target urate-lowering therapy during hospitalizations for gout flares. Rheumatology (Oxford) 2024; 63:2222-2229. [PMID: 37929968 PMCID: PMC11292051 DOI: 10.1093/rheumatology/kead574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/25/2023] [Accepted: 08/13/2023] [Indexed: 11/07/2023] Open
Abstract
OBJECTIVES To evaluate a strategy designed to optimize care and increase uptake of urate-lowering therapy (ULT) during hospitalizations for gout flares. METHODS We conducted a prospective cohort study to evaluate a strategy that combined optimal in-hospital gout management with a nurse-led, follow-up appointment, followed by handover to primary care. Outcomes, including ULT initiation, urate target attainment and re-hospitalization rates, were compared between patients hospitalized for flares in the 12 months post-implementation and a retrospective cohort of hospitalized patients from 12 months pre-implementation. RESULTS One hundred and nineteen and 108 patients, respectively, were hospitalized for gout flares in the 12 months pre- and post-implementation. For patients with 6-month follow-up data available (n = 94 and n = 97, respectively), the proportion newly initiated on ULT increased from 49.2% pre-implementation to 92.3% post-implementation (age/sex-adjusted odds ratio [aOR] 11.5; 95% CI 4.36, 30.5; P < 0.001). After implementation, more patients achieved a serum urate ≤360 μmol/l within 6 months of discharge (10.6% pre-implementation vs 26.8% post-implementation; aOR 3.04; 95% CI 1.36, 6.78; P = 0.007). The proportion of patients re-hospitalized for flares was 14.9% pre-implementation vs 9.3% post-implementation (aOR 0.53; 95% CI 0.22, 1.32; P = 0.18). CONCLUSION Over 90% of patients were initiated on ULT after implementing a strategy to optimize hospital gout care. Despite increased initiation of ULT during flares, recurrent hospitalizations were not more frequent following implementation. Significant relative improvements in urate target attainment were observed post-implementation; however, for the majority of hospitalized gout patients to achieve urate targets, closer primary-secondary care integration is still needed.
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Affiliation(s)
- Mark D Russell
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | | | - Flora Dell’Accio
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | - Heather Lapham
- Department of Rheumatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - Natalie Head
- Department of Rheumatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - Christopher Stovin
- Department of Rheumatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - Vishit Patel
- Department of Rheumatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - Benjamin D Clarke
- Department of Rheumatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - Deepak Nagra
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | - Edward Alveyn
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | - Maryam A Adas
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | - Katie Bechman
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | - María A de la Puente
- Department of Psychology, Health Psychology Section, Institute of Psychiatry, Psychology, & Neuroscience, King's College London, London, UK
| | - Benjamin Ellis
- Department of Rheumatology, Imperial College Healthcare NHS Foundation Trust, London, UK
| | - Corrine Byrne
- Pharmacy Department, King’s College Hospital NHS Foundation Trust, London, UK
| | - Rina Patel
- Pharmacy Department, King’s College Hospital NHS Foundation Trust, London, UK
| | - Andrew I Rutherford
- Department of Rheumatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - Fleur Cantle
- Department of Emergency Medicine, King’s College Hospital NHS Foundation Trust, London, UK
| | - Sam Norton
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | | | - Joanna Hudson
- Department of Psychology, Health Psychology Section, Institute of Psychiatry, Psychology, & Neuroscience, King's College London, London, UK
| | - Andrew P Cope
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | - James B Galloway
- Centre for Rheumatic Diseases, King’s College London, London, UK
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Michael TJF, Chan JS, Hughes S, Wright DFB, Coleshill MJ, Hughes DA, Day RO, Aslani P, Stocker SL. The experiences and perspectives of people with gout on urate self-monitoring. Health Expect 2024; 27:e14071. [PMID: 38742836 PMCID: PMC11092534 DOI: 10.1111/hex.14071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/16/2024] Open
Abstract
INTRODUCTION Gout management remains suboptimal despite safe and effective urate-lowering therapy. Self-monitoring of urate may improve gout management, however, the acceptability of urate self-monitoring by people with gout is unknown. The aim of this study was to explore the experiences of urate self-monitoring in people with gout. METHODS Semistructured interviews were conducted with people taking urate-lowering therapy (N = 30) in a 12-month trial of urate self-monitoring in rural and urban Australia. Interviews covered the experience of monitoring and its effect on gout self-management. Deidentified transcripts were analysed thematically. RESULTS Participants valued the ability to self-monitor and gain more understanding of urate control compared with the annual monitoring ordered by their doctors. Participants indicated that self-monitoring at home was easy, convenient and informed gout self-management behaviours such as dietary modifications, hydration, exercise and medication routines. Many participants self-monitored to understand urate concentration changes in response to feeling a gout flare was imminent or whether their behaviours, for example, alcohol intake, increased the risk of a gout flare. Urate concentrations were shared with doctors mainly when they were above target to seek management support, and this led to allopurinol dose increases in some cases. CONCLUSION Urate self-monitoring was viewed by people with gout as convenient and useful for independent management of gout. They believed self-monitoring achieved better gout control with a less restricted lifestyle. Urate data was shared with doctors at the patient's discretion and helped inform clinical decisions, such as allopurinol dose changes. Further research on implementing urate self-monitoring in routine care would enable an evaluation of its impact on medication adherence and clinical outcomes, as well as inform gout management guidelines. PATIENT OR PUBLIC CONTRIBUTION One person with gout, who was not a participant, was involved in the study design by providing feedback and pilot testing the semistructured interview guide. In response to their feedback, subsequent modifications to the interview guide were made to improve the understandability of the questions from a patient perspective. No additional questions were suggested.
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Affiliation(s)
- Toni J. F. Michael
- School of Pharmacy, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
| | - Jian S. Chan
- St Vincent's Clinical School Campus, Faculty of MedicineThe University of New South WalesSydneyNew South WalesAustralia
| | - Stephen Hughes
- School of Pharmacy, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
| | - Daniel F. B. Wright
- School of Pharmacy, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
- St Vincent's Clinical School Campus, Faculty of MedicineThe University of New South WalesSydneyNew South WalesAustralia
- Department of Clinical Pharmacology and ToxicologySt Vincent's HospitalSydneyNew South WalesAustralia
| | - Matthew J. Coleshill
- Black Dog Institute, Faculty of MedicineThe University of New South WalesSydneyNew South WalesAustralia
| | - Dyfrig A. Hughes
- Centre for Health Economics and Medicines Evaluation, North Wales Medical SchoolBangor UniversityWalesUK
| | - Richard O. Day
- St Vincent's Clinical School Campus, Faculty of MedicineThe University of New South WalesSydneyNew South WalesAustralia
- Department of Clinical Pharmacology and ToxicologySt Vincent's HospitalSydneyNew South WalesAustralia
| | - Parisa Aslani
- School of Pharmacy, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
| | - Sophie L. Stocker
- School of Pharmacy, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
- Department of Clinical Pharmacology and ToxicologySt Vincent's HospitalSydneyNew South WalesAustralia
- Sydney Infectious Diseases Institute, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
- Sydney Musculoskeletal Health, Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia
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7
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Mandl P, D'Agostino MA, Navarro-Compán V, Geßl I, Sakellariou G, Abhishek A, Becce F, Dalbeth N, Ea HK, Filippucci E, Hammer HB, Iagnocco A, de Thurah A, Naredo E, Ottaviani S, Pascart T, Pérez-Ruiz F, Pitsillidou IA, Proft F, Rech J, Schmidt WA, Sconfienza LM, Terslev L, Wildner B, Zufferey P, Filippou G. 2023 EULAR recommendations on imaging in diagnosis and management of crystal-induced arthropathies in clinical practice. Ann Rheum Dis 2024; 83:752-759. [PMID: 38320811 PMCID: PMC11103298 DOI: 10.1136/ard-2023-224771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 01/30/2024] [Indexed: 05/22/2024]
Abstract
OBJECTIVE To formulate evidence-based recommendations and overarching principles on the use of imaging in the clinical management of crystal-induced arthropathies (CiAs). METHODS An international task force of 25 rheumatologists, radiologists, methodologists, healthcare professionals and patient research partners from 11 countries was formed according to the EULAR standard operating procedures. Fourteen key questions on the role of imaging in the most common forms of CiA were generated. The CiA assessed included gout, calcium pyrophosphate deposition disease and basic calcium phosphate deposition disease. Imaging modalities included conventional radiography, ultrasound, CT and MRI. Experts applied research evidence obtained from four systematic literature reviews using MEDLINE, EMBASE and CENTRAL. Task force members provided level of agreement (LoA) anonymously by using a Numerical Rating Scale from 0 to 10. RESULTS Five overarching principles and 10 recommendations were developed encompassing the role of imaging in various aspects of patient management: making a diagnosis of CiA, monitoring inflammation and damage, predicting outcome, response to treatment, guided interventions and patient education. Overall, the LoA for the recommendations was high (8.46-9.92). CONCLUSIONS These are the first recommendations that encompass the major forms of CiA and guide the use of common imaging modalities in this disease group in clinical practice.
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Affiliation(s)
- Peter Mandl
- Division of Rheumatology, Department of Internal Medicine 3, Medical University of Vienna, Wien, Austria
| | - Maria Antonietta D'Agostino
- Rheumatology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Irina Geßl
- Department of Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Garifallia Sakellariou
- Istituti Clinici Scientifici Maugeri SpA SB IRCCS, Pavia, Italy
- Università degli Studi di Pavia, Pavia, Italy
| | | | - Fabio Becce
- Department of Medical Radiology, Lausanne University Hospital, Lausanne, Switzerland
| | | | | | - Emilio Filippucci
- Rheumatology Unit-Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Jesi, Italy
| | - Hilde Berner Hammer
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
- University of Oslo Faculty of Medicine, Oslo, Norway
| | - Annamaria Iagnocco
- Scienze Cliniche e Biologiche, Università degli Studi di Torino, Turin, Italy
| | - Annette de Thurah
- Rheumatology, Aarhus University Hospital, Aarhus N, Denmark
- Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Esperanza Naredo
- Department of Rheumatology and Bone and Joint Research Unit, Hospital Universitario Fundación Jiménez Díaz, IIS Fundación Jiménez Díaz, Madrid, Spain
| | | | - Tristan Pascart
- Department of Rheumatology, Lille Catholic University, Saint-Philibert Hospital, Lomme, France
| | - Fernando Pérez-Ruiz
- Rheumatology Department, Osakidetza, Ezkerraldea-Enkarterri-Cruces, Cruces University Hospital, Biocruces-Bizkaia Health Research Institute and University of the Basque Country, Basque Country, Spain
| | - Irene A Pitsillidou
- EULAR Patient Research Partner, Cyprus League Against Rheumatism, Nicosia, Cyprus
| | - Fabian Proft
- Department of Gastroenterology, Infectiology and Rheumatology (including Nutrition Medicine), Charite Universitatsmedizin Berlin, Berlin, Germany
| | - Juergen Rech
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich Alexander University Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | | | - Luca Maria Sconfienza
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Lene Terslev
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Copenhagen University, Copenhagen, Denmark
| | | | - Pascal Zufferey
- Rheumatology, University of Lausanne, CHUV, Lausanne, Switzerland
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Yang S, Lin X, Gao Y, Liang N, Han Y, Sun H, Qu S, Chen H. The association between gout flares and monosodium urate burden assessed using musculoskeletal ultrasound in patients with gout. Ther Adv Musculoskelet Dis 2024; 16:1759720X241240837. [PMID: 38559313 PMCID: PMC10981851 DOI: 10.1177/1759720x241240837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
Background Ultrasound (US) has a high sensitivity in detecting monosodium urate (MSU) deposition in gout patients. However, the value of US in predicting gout flares has been reported only in a few monocentric studies. Objective To investigate the association between gout flares in the previous year and US-detected MSU burden using two different US scores. Design A retrospective study. Methods Patients with gout were consecutively recruited to undergo musculoskeletal US examinations of their knees, ankles, and feet. The score derived from Outcome Measure in Rheumatology (hereinafter referred to as MSU score) and musculoskeletal US features-based (hereinafter referred to as MSKF score) were used to quantify the MSU burden of gout. Odds ratios for frequent gout flares were calculated. Results We enrolled 1894 patients with gout (mean age: 45 years; gout duration: 5 years; males: 96.1%), experiencing a median of three flares over the past year. Of these, 428 (22.6%) patients reported frequent (⩾7) gout flares. The MSU and MSKF median scores were 6 and 9, respectively. For each five-point increase in MSU and MSKF score, the odds ratio of frequent gout flares increased 1.13-fold and 1.24-fold, respectively. The area under the curve (AUC) for the MSU and MSKF score was 0.635 [95% confidence interval (CI): 0.604-0.665] and 0.688 (95% CI: 0.659-0.718), respectively, (AUC difference 0.054, p value for AUC difference < 0.001). Conclusion The MSU and MSKF scores were significantly associated with the number of gout flares in the previous year. The MSKF score outperformed the MSU score in terms of frequent gout flare discrimination.
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Affiliation(s)
- Shaoling Yang
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiaojing Lin
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yining Gao
- Department of Endocrinology and Metabolism, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Nan Liang
- Department of Endocrinology and Metabolism, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Yali Han
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Hang Sun
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shen Qu
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, No. 301 Yanchang Middle Road, Shanghai 200072, China
| | - Haibing Chen
- Department of Endocrinology and Metabolism, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, No. 301 Yanchang Middle Road, Shanghai 200072, China
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Wang M, Li R, Qi H, Pang L, Cui L, Liu Z, Lu J, Wang R, Hu S, Liang N, Tao Y, Dalbeth N, Merriman TR, Terkeltaub R, Yin H, Li C. Metabolomics and Machine Learning Identify Metabolic Differences and Potential Biomarkers for Frequent Versus Infrequent Gout Flares. Arthritis Rheumatol 2023; 75:2252-2264. [PMID: 37390372 DOI: 10.1002/art.42635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 06/09/2023] [Accepted: 06/20/2023] [Indexed: 07/02/2023]
Abstract
OBJECTIVE The objective of this study was to discover differential metabolites and pathways underlying infrequent gout flares (InGF) and frequent gout flares (FrGF) using metabolomics and to establish a predictive model by machine learning (ML) algorithms. METHODS Serum samples from a discovery cohort of 163 patients with InGF and 239 patients with FrGF were analyzed by mass spectrometry-based untargeted metabolomics to profile differential metabolites and explore dysregulated metabolic pathways using pathway enrichment analysis and network propagation-based algorithms. ML algorithms were performed to establish a predictive model based on selected metabolites, which was further optimized by a quantitative targeted metabolomics method and validated in an independent validation cohort with 97 participants with InGF and 139 participants with FrGF. RESULTS A total of 439 differential metabolites between InGF and FrGF groups were identified. Top dysregulated pathways included carbohydrates, amino acids, bile acids, and nucleotide metabolism. Subnetworks with maximum disturbances in the global metabolic networks featured cross-talk between purine metabolism and caffeine metabolism, as well as interactions among pathways involving primary bile acid biosynthesis, taurine and hypotaurine metabolism, alanine, aspartate, and glutamate metabolism, suggesting epigenetic modifications and gut microbiome in metabolic alterations underlying InGF and FrGF. Potential metabolite biomarkers were identified using ML-based multivariable selection and further validated by targeted metabolomics. Area under receiver operating characteristics curve for differentiating InGF and FrGF achieved 0.88 and 0.67 for the discovery and validation cohorts, respectively. CONCLUSION Systematic metabolic alterations underlie InGF and FrGF, and distinct profiles are associated with differences in gout flare frequencies. Predictive modeling based on selected metabolites from metabolomics can differentiate InGF and FrGF.
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Affiliation(s)
- Ming Wang
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China
| | - Rui Li
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China and Chinese Academy of Sciences (CAS) Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, CAS, Shanghai, China and Innovation Center for Intervention of Chronic Disease and Promotion of Health, Shanghai, China
| | - Han Qi
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China
| | - Lei Pang
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China
| | - Lingling Cui
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Key Laboratory of Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhen Liu
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Key Laboratory of Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jie Lu
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Key Laboratory of Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Rong Wang
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China
| | - Shuhui Hu
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Qingdao, China
| | - Ningning Liang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, CAS, Shanghai, China and Innovation Center for Intervention of Chronic Disease and Promotion of Health, Shanghai, China and University of Chinese Academy of Sciences, CAS, Beijing, China
| | - Yongzhen Tao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, CAS, Shanghai, China and Innovation Center for Intervention of Chronic Disease and Promotion of Health, Shanghai, China
| | - Nicola Dalbeth
- Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Tony R Merriman
- Department of Biochemistry, University of Otago, Dunedin, New Zealand and Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham
| | - Robert Terkeltaub
- VA San Diego Healthcare System, San Diego, California and University of California San Diego, La Jolla, California
| | - Huiyong Yin
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China and CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, CAS, Shanghai, China and Innovation Center for Intervention of Chronic Disease and Promotion of Health, Shanghai, China and Department of Biomedical Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Changgui Li
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China and Shandong Provincial Key Laboratory of Metabolic Diseases, the Affiliated Hospital of Qingdao University, Qingdao, China
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10
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Uhlig T, Karoliussen LF, Sexton J, Kvien TK, Haavardsholm EA, Taylor WJ, Hammer HB. Beliefs about medicines in gout patients: results from the NOR-Gout 2-year study. Scand J Rheumatol 2023; 52:664-672. [PMID: 37395419 DOI: 10.1080/03009742.2023.2213507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 05/10/2023] [Indexed: 07/04/2023]
Abstract
OBJECTIVE Adherence to urate-lowering therapy (ULT) in gout is challenging. This longitudinal study aimed to determine 2 year changes in beliefs about medicines during intervention with ULT. METHOD Patients with a recent gout flare and increased serum urate received a nurse-led ULT intervention with tight control visits and a treatment target. Frequent visits at baseline and 1, 2, 3, 6, 9, 12, and 24 months included the Beliefs about Medicines Questionnaire (BMQ), and demographic and clinical variables. The BMQ subscales on necessity, concerns, overuse, harm, and the necessity-concerns differential were calculated as a measure of whether the patient perceived that necessity outweighed concerns. RESULTS The mean serum urate reduced from 500 mmol/L at baseline to 324 mmol/L at year 2. At years 1 and 2, 85.5% and 78.6% of patients, respectively, were at treatment target. The 2 year mean ± sd BMQ scores increased for the necessity subscale from 17.0 ± 4.4 to 18.9 ± 3.6 (p < 0.001) and decreased for the concerns subscale from 13.4 ± 4.9 to 12.5 ± 2.7 (p = 0.001). The necessity-concerns differential increased from 3.52 to 6.58 (p < 0.001), with a positive change independent of patients achieving treatment targets at 1 or 2 years. BMQ scores were not significantly related to treatment outcomes 1 or 2 years later, and achieving treatment targets did not lead to higher BMQ scores. CONCLUSION Patient beliefs about medicines improved gradually over 2 years, with increased beliefs in the necessity of medication and reduced concerns, but this improvement was unrelated to better outcomes. TRIAL REGISTRATION ACTRN12618001372279.
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Affiliation(s)
- T Uhlig
- Center for treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - L F Karoliussen
- Center for treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
| | - J Sexton
- Center for treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
| | - T K Kvien
- Center for treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - E A Haavardsholm
- Center for treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - W J Taylor
- Department of Medicine, University of Otago, Wellington, New Zealand
- Rheumatology Department, Hutt Hospital and Gisborne Hospital, Te Whatu Ora (Health New Zealand), Gisborne, New Zealand
| | - H B Hammer
- Center for treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
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Terkeltaub R. Emerging Urate-Lowering Drugs and Pharmacologic Treatment Strategies for Gout: A Narrative Review. Drugs 2023; 83:1501-1521. [PMID: 37819612 DOI: 10.1007/s40265-023-01944-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/04/2023] [Indexed: 10/13/2023]
Abstract
Hyperuricemia with consequent monosodium urate crystal deposition leads to gout, characterized by painful, incapacitating inflammatory arthritis flares that are also associated with increased cardiovascular event and related mortality risk. This narrative review focuses on emerging pharmacologic urate-lowering treatment (ULT) and management strategies in gout. Undertreated, gout can progress to palpable tophi and joint damage. In oral ULT clinical trials, target serum urate of < 6.0 mg/dL can be achieved in ~ 80-90% of subjects, with flare burden reduction by 1-2 years. However, real-world ULT results are far less successful, due to both singular patient nonadherence and prescriber undertreatment, particularly in primary care, where most patients are managed. Multiple dose titrations commonly needed to optimize first-line allopurinol ULT monotherapy, and substantial potential toxicities and other limitations of approved, marketed oral monotherapy ULT drugs, promote hyperuricemia undertreatment. Common gout comorbidities with associated increased mortality (e.g., moderate-severe chronic kidney disease [CKD], type 2 diabetes, hypertension, atherosclerosis, heart failure) heighten ULT treatment complexity and emphasize unmet needs for better and more rapid clinically significant outcomes, including attenuated gout flare burden. The gout drug armamentarium will be expanded by integrating sodium-glucose cotransporter-2 (SGLT2) inhibitors with uricosuric and anti-inflammatory properties as well as clinically indicated antidiabetic, nephroprotective, and/or cardioprotective effects. The broad ULT developmental pipeline is loaded with multiple uricosurics that selectively target uric acid transporter 1 (URAT1). Evolving ULT approaches include administering selected gut anaerobic purine degrading bacteria (PDB), modulating intestinal urate transport, and employing liver-targeted xanthine oxidoreductase mRNA knockdown. Last, emerging measures to decrease the immunogenicity of systemically administered recombinant uricases should simplify treatment regimens and further improve outcomes in managing the most severe gout phenotypes.
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Affiliation(s)
- Robert Terkeltaub
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California, 9500 Gilman Drive, San Diego, La Jolla, CA, 92093, USA.
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12
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Pang L, Xue X, He Y, Wang C, Han L, Li M, Qi H, Li C, Lu J. The Effect of Decrease in Serum Urate for the Risk of Gout Flares During Urate-Lowering Therapy Initiation Among Chinese Male Gout Patients: A Prospective Cohort Study. J Inflamm Res 2023; 16:3937-3947. [PMID: 37706063 PMCID: PMC10497051 DOI: 10.2147/jir.s424820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/01/2023] [Indexed: 09/15/2023] Open
Abstract
Purpose Higher baseline serum urate or higher initial urate-lowering medication dose increased risk of gout flares during urate-lowering therapy (ULT) initiation. The decrease in serum urate may play a crucial role in this process. Therefore, we aim to explore the relationship between decrease in serum urate and the risk of gout flares during ULT initiation. Patients and Methods A 12-week prospective cohort study of Chinese male gout patients was conducted at Shandong Provincial Clinical Research Center for Immune Diseases and Gout in China. Patients were grouped by baseline serum urate (7-7.9 mg/dL, 8-8.9 mg/dL and ≥9 mg/dL). All patients received febuxostat 20 mg daily during weeks 0-4, then escalated to 40mg during weeks 4-12 if serum urate >6mg/dL. The main outcomes were the number of gout flares and the decrease in serum urate. Poisson regression was performed. Results A total of 282 participants were enrolled, of whom 260 completed (84, 87 and 89 in each group) from March 2021 to December 2021. A 44.2% of all participants experienced at least one gout flare. In the multivariate Poisson regression 1, Δ serum urate 0-12 weeks (IRR 1.184, 95% CI, 1.062-1.320; P=0.002), the number of gout flares before treatment 1 year (1.017, 1.010-1.024; P<0.001) and tophus (1.580, 1.023-2.440; P=0.039) were independently associated with the number of gout flares. While in the multivariate Poisson regression 2, baseline serum urate (1.256, 1.050-1.503; P=0.013) and the number of gout flares before treatment 1 year (1.014, 1.007-1.022; P<0.001) were independently associated with the number of gout flares, Δ serum urate 0-12 weeks (1.055, 0.923-1.207; P=0.433) was no longer a risk factor. Conclusion ULT-induced gout flares depend on the degree of decrease in serum urate, which is affected by baseline serum urate. Higher baseline serum urate and greater decrease in serum urate lead to higher risk of gout flares.
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Affiliation(s)
- Lei Pang
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Xiaomei Xue
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Yuwei He
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Can Wang
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Lin Han
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Maichao Li
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Han Qi
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Changgui Li
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Jie Lu
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, 266003, People’s Republic of China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, 266003, People’s Republic of China
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Russell MD, Roddy E, Rutherford AI, Ellis B, Norton S, Douiri A, Gulliford MC, Cope AP, Galloway JB. Treat-to-target urate-lowering therapy and hospitalizations for gout: results from a nationwide cohort study in England. Rheumatology (Oxford) 2023; 62:2426-2434. [PMID: 36355461 PMCID: PMC10321109 DOI: 10.1093/rheumatology/keac638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/03/2022] [Indexed: 07/20/2023] Open
Abstract
OBJECTIVE To investigate associations between treat-to-target urate-lowering therapy (ULT) and hospitalizations for gout. METHODS Using linked Clinical Practice Research Datalink and NHS Digital Hospital Episode Statistics data, we described the incidence and timing of hospitalizations for flares in people with index gout diagnoses in England from 2004-2020. Using Cox proportional hazards and propensity models, we investigated associations between ULT initiation, serum urate target attainment, colchicine prophylaxis, and the risk of hospitalizations for gout. RESULTS Of 292 270 people with incident gout, 7719 (2.64%) had one or more hospitalizations for gout, with an incidence rate of 4.64 hospitalizations per 1000 person-years (95% CI 4.54, 4.73). There was an associated increased risk of hospitalizations within the first 6 months after ULT initiation, when compared with people who did not initiate ULT [adjusted Hazard Ratio (aHR) 4.54; 95% CI 3.70, 5.58; P < 0.001]. Hospitalizations did not differ significantly between people prescribed vs not prescribed colchicine prophylaxis in fully adjusted models. From 12 months after initiation, ULT associated with a reduced risk of hospitalizations (aHR 0.77; 95% CI 0.71, 0.83; P < 0.001). In ULT initiators, attainment of a serum urate <360 micromol/l within 12 months of initiation associated with a reduced risk of hospitalizations (aHR 0.57; 95% CI 0.49, 0.67; P < 0.001) when compared with people initiating ULT but not attaining this target. CONCLUSION ULT associates with an increased risk of hospitalizations within the first 6 months of initiation but reduces hospitalizations in the long term, particularly when serum urate targets are achieved.
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Affiliation(s)
- Mark D Russell
- Correspondence to: Mark D. Russell, Centre for Rheumatic Diseases, Weston Education Centre, King’s College London, 10 Cutcombe Road, London SE5 9RJ, UK. E-mail:
| | | | - Andrew I Rutherford
- Department of Rheumatology, King’s College Hospital NHS Foundation Trust, London, UK
| | - Benjamin Ellis
- Department of Rheumatology, Imperial College Healthcare NHS Foundation Trust, London, UK
| | - Sam Norton
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | - Abdel Douiri
- School of Population Health and Environmental Sciences, King’s College London, London, UK
| | - Martin C Gulliford
- School of Population Health and Environmental Sciences, King’s College London, London, UK
| | - Andrew P Cope
- Centre for Rheumatic Diseases, King’s College London, London, UK
| | - James B Galloway
- Centre for Rheumatic Diseases, King’s College London, London, UK
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14
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Liu W, Peng J, Wu Y, Ye Z, Zong Z, Wu R, Li H. Immune and inflammatory mechanisms and therapeutic targets of gout: An update. Int Immunopharmacol 2023; 121:110466. [PMID: 37311355 DOI: 10.1016/j.intimp.2023.110466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 06/15/2023]
Abstract
Gout is an autoimmune disease characterized by acute or chronic inflammation and damage to bone joints induced due to the precipitation of monosodium urate (MSU) crystals. In recent years, with the continuous development of animal models and ongoing clinical investigations, more immune cells and inflammatory factors have been found to play roles in gouty inflammation. The inflammatory network involved in gout has been discovered, providing a new perspective from which to develop targeted therapy for gouty inflammation. Studies have shown that neutrophil macrophages and T lymphocytes play important roles in the pathogenesis and resolution of gout, and some inflammatory cytokines, such as those in the interleukin-1 (IL-1) family, have been shown to play anti-inflammatory or proinflammatory roles in gouty inflammation, but the mechanisms underlying their roles are unclear. In this review, we explore the roles of inflammatory cytokines, inflammasomes and immune cells in the course of gout development and the research status of therapeutic drugs used for inflammation to provide insights into future targeted therapy for gouty inflammation and the direction of gout pathogenesis research.
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Affiliation(s)
- Wenji Liu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006 Nanchang, China; The Second Clinical Medical College of Nanchang University, 330006 Nanchang, China
| | - Jie Peng
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006 Nanchang, China; The Second Clinical Medical College of Nanchang University, 330006 Nanchang, China
| | - Yixin Wu
- Queen Mary College of Nanchang University, 330006 Nanchang, China
| | - Zuxiang Ye
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006 Nanchang, China; The Second Clinical Medical College of Nanchang University, 330006 Nanchang, China
| | - Zhen Zong
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, 1 MinDe Road, 330006 Nanchang, China
| | - Rui Wu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006 Nanchang, China.
| | - Hui Li
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, 330006 Nanchang, China.
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15
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Lee ZC, Santosa A, Khor AYK, Sriranganathan MK. The Singapore Experience With Uncontrolled Gout: Unmet Needs in the Management of Patients. Cureus 2023; 15:e36682. [PMID: 36987445 PMCID: PMC10039979 DOI: 10.7759/cureus.36682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
Gout is the most common type of inflammatory arthritis, and its impact on cardiovascular health and quality of life is often underestimated. The prevalence and incidence of gout are increasing globally. Further, ischemic heart disease (IHD) and chronic kidney disease (CKD) are prevalent in gout patients. Some unmet needs for gout management include physicians' low initiation rate of urate-lowering therapy (ULT) and poor treatment adherence in patients with gout. There is also a lack of randomized controlled trials that establish safe doses of acute and long-term treatment for gout, particularly in patients with IHD and stage 4 CKD and above (including end-stage renal failure). Furthermore, there is also a lack of studies showing optimal serum uric acid (SUA) target and validated clinical outcome measures, including disease activity and remission criteria for gout tailored to treat-to-target approaches and the high cost of newer gout medications. The causal relationship between asymptomatic hyperuricemia or gout with comorbidities such as IHD and CKD has yet to be fully elucidated. There is a pressing need for collaborative international efforts to address the overall suboptimal management of gout.
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16
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Uhlig T, Karoliussen LF, Sexton J, Kvien TK, Haavardsholm EA, Perez-Ruiz F, Hammer HB. Fluctuation and change of serum urate levels and flares in gout: results from the NOR-Gout study. Clin Rheumatol 2022; 41:3817-3823. [PMID: 36316609 PMCID: PMC9652272 DOI: 10.1007/s10067-022-06416-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/11/2022] [Accepted: 10/16/2022] [Indexed: 11/05/2022]
Abstract
A gout attack may evolve after a purine-rich diet or alcohol and after starting urate-lowering therapy (ULT). The relationships between fluctuation and change in serum urate (SU) with the occurrence of flares were investigated in this study. In the prospective NOR-Gout study, gout patients with increased SU and a recent flare were treated to target with ULT over 1 year, with follow-up at year 2 with SU and flare as outcomes. SU and flares were assessed at both monthly and 3-monthly intervals until target SU was reached. Fluctuation over periods and changes in SU between two time points were assessed and compared in patients with and without flares. At year 1, 186 patients completed follow-up (88.2%) and 173 (82.0%) at year 2. Mean age (SD) at baseline was 56.4 (13.7) years, disease duration was 7.8 (7.6) years, and 95.3% were men. The first-year SU fluctuation and change were related to flare occurrence during year 1 (both p < 0.05). High fluctuation with an absolute sum of all SU changes during the first 9 months was related to flares over 3-month periods (all p < 0.05), and high fluctuation during the first 3 months was related to flares in months 3-6 (p = 0.04). Monthly and high SU changes or again reaching higher SU levels > 360 µmol/l were not related to flares. Fluctuation and change in SU were related to flare occurrence during the first year of ULT, while changes between visits and reaching SU levels > 360 µmol/L were not related to flares. Key Points • Urate-lowering therapy seeks to achieve a treatment target and prevent gout flares, and changes in serum urate are related to gout flares. • Fluctuation and changes in serum urate were associated with gout flares, suggesting that fluctuation in serum urate is unfavourable during gout treatment. • During urate-lowering therapy in gout in clinical practice, fluctuation of serum urate, for example, due to lack of adherence, should be observed and avoided.
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Affiliation(s)
- T Uhlig
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Box 23, Vinderen, N-0319, Oslo, Norway.
- Faculty of Medicine, University of Oslo, Oslo, Norway.
| | - L F Karoliussen
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Box 23, Vinderen, N-0319, Oslo, Norway
| | - J Sexton
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Box 23, Vinderen, N-0319, Oslo, Norway
| | - T K Kvien
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Box 23, Vinderen, N-0319, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - E A Haavardsholm
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Box 23, Vinderen, N-0319, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - F Perez-Ruiz
- Division of Rheumatology, OSI EE-Cruces, Cruces University Hospital, Osakidetza, Barakaldo, Spain
- Biocruces-Bizkaia Health Research Institute, Barakaldo, Spain
- Medicine Department, Medicine School, University of the Basque Country, Leioa, Spain
| | - H B Hammer
- Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Box 23, Vinderen, N-0319, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
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17
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Critical appraisal of serum urate targets in the management of gout. Nat Rev Rheumatol 2022; 18:603-609. [PMID: 35974164 DOI: 10.1038/s41584-022-00816-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2022] [Indexed: 11/08/2022]
Abstract
Gout management involves two broad aspects: treatment of gout flares to provide rapid symptomatic relief and long-term urate-lowering therapy to lower serum urate sufficiently to prevent gout flares from occurring. All of the major rheumatology societies recommend a target serum urate of <5 mg/dl (<0.30 mmol/l) or <6 mg/dl (<0.36 mmol/l), both of which are below the point of saturation for urate and therefore lead to monosodium urate crystal dissolution. In this Review, we describe the rationale for treat-to-target urate approach in the long-term management of gout and the current evidence and controversy around the appropriate serum urate targets.
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