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Yokose C, Challener G, Jiang B, Zhou B, McCormick N, Tanikella S, Panchot KMQ, Kohler MJ, Yinh J, Zhang Y, Bates DW, Januzzi JL, Sise M, Wexler D, Choi HK. Serum urate change among gout patients treated with sodium-glucose cotransporter type 2 inhibitors vs. sulfonylurea: A comparative effectiveness analysis. Semin Arthritis Rheum 2024; 66:152441. [PMID: 38657403 DOI: 10.1016/j.semarthrit.2024.152441] [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: 12/18/2023] [Revised: 01/25/2024] [Accepted: 02/09/2024] [Indexed: 04/26/2024]
Abstract
OBJECTIVE To investigate the serum urate (SU) change among gout patients initiating SGLT2i, and to compare with sulfonylurea, the second-most widely used glucose-lowering medication after metformin. METHODS We conducted a cohort study of patients with gout and baseline SU >6 mg/dL who had SU measured within 90 days before and after SGLT2i or sulfonylurea initiation. Using multivariable linear regression, we compared SU change among SGLT2i initiators between those with and without diabetes and then compared SU change between SGLT2i and sulfonylurea. RESULTS We identified 28 patients with gout initiating SGLT2i (including 16 with diabetes) and 28 patients initiating sulfonylurea (all with diabetes). Among SGLT2i initiators, the mean within-group SU change was -1.8 (95 % CI, -2.4 to -1.1) mg/dL, including -1.2 (-1.8 to -0.6) mg/dL and -2.5 (-3.6 to -1.3) mg/dL among patients with and without diabetes, respectively, with an adjusted difference between those with and without diabetes of -1.4 (-2.4 to -0.5) mg/dL. The SU did not change after initiating sulfonylurea (+0.3 [-0.3 to 1.0] mg/dL). The adjusted SU change difference between SGLT2i vs. sulfonylurea initiation was -1.8 (-2.7 to -0.9) mg/dL in all patients. The SU reduction persisted regardless of urate-lowering therapy or diuretic use and the presence of diabetes, chronic kidney disease, or heart failure. CONCLUSION Among patients with gout, SGLT2i was associated with a notable reduction in SU compared with sulfonylurea, with a larger reduction among patients without diabetes. With their proven cardiovascular-kidney-metabolic benefits, adding SGLT2i to current gout management could provide streamlined benefits for gout and its comorbidities.
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Affiliation(s)
- Chio Yokose
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Greg Challener
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Bohang Jiang
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Massachusetts General Hospital, Boston, MA, USA
| | - Baijun Zhou
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Massachusetts General Hospital, Boston, MA, USA
| | - Natalie McCormick
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Sruthi Tanikella
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Massachusetts General Hospital, Boston, MA, USA
| | - Kila Mei Qin Panchot
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Massachusetts General Hospital, Boston, MA, USA
| | - Minna J Kohler
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Janeth Yinh
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Yuqing Zhang
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - David W Bates
- Harvard Medical School, Boston, MA, USA; Division of General Internal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - James L Januzzi
- Harvard Medical School, Boston, MA, USA; Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Heart Failure and Biomarker Trials, Baim Institute for Clinical Research, Boston, Massachusetts, United States
| | - Meghan Sise
- Harvard Medical School, Boston, MA, USA; Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Deborah Wexler
- Harvard Medical School, Boston, MA, USA; Diabetes Center, Massachusetts General Hospital, Boston, MA, USA
| | - Hyon K Choi
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA; Rheumatology and Allergy Clinical Epidemiology Research Center, Mongan Institute, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
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McCormick N, Yokose C, Lu N, Wexler DJ, Aviña-Zubieta JA, De Vera MA, McCoy RG, Choi HK. Sodium-Glucose Cotransporter-2 Inhibitors vs Sulfonylureas for Gout Prevention Among Patients With Type 2 Diabetes Receiving Metformin. JAMA Intern Med 2024; 184:650-660. [PMID: 38619822 PMCID: PMC11019449 DOI: 10.1001/jamainternmed.2024.0376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/27/2024] [Indexed: 04/16/2024]
Abstract
Importance Sodium-glucose cotransporter type 2 inhibitors (SGLT2i) are a revolutionary treatment for type 2 diabetes (T2D) with cardiovascular, kidney, and serum urate-lowering benefits. Objective To compare risk of incident gout and rate of recurrent flares between patients with T2D initiating SGLT2i vs sulfonylurea, most common second-line glucose-lowering therapy, when added to metformin monotherapy. Design, Setting, and Participants This sequential, propensity score-matched, new-user comparative effectiveness study using target trial emulation framework included adults with T2D receiving metformin monotherapy in a Canadian general population database from January 1, 2014, to June 30, 2022. Exposures Initiation of SGLT2i vs sulfonylurea. Main Outcomes and Measures The primary outcome was incident gout diagnosis, ascertained by emergency department (ED), hospital, outpatient, and medication dispensing records. Secondary outcomes were gout-primary hospitalizations and ED visits and major adverse cardiovascular events (MACE), as well as recurrent flare rates among prevalent gout patients. Heart failure (HF) hospitalization was assessed as positive control outcome and osteoarthritis encounters as negative control. For target trial emulations, we used Cox proportional hazards and Poisson regressions with 1:1 propensity score matching (primary analysis) and overlap weighting (sensitivity analysis). The analysis was conducted from September to December, 2023. Results Among 34 604 propensity score matched adults with T2D initiating SGLT2i or sulfonylurea (20 816 [60%] male, mean [SD] age, 60 [12.4] years), incidence of gout was lower among SGLT2i initiators (4.27 events per 1000 person-years) than sulfonylurea initiators (6.91 events per 1000 person-years), with a hazard ratio (HR) of 0.62 (95% CI, 0.48-0.80) and a rate difference (RD) of -2.64 (95% CI, -3.99 to -1.29) per 1000 person-years. Associations persisted regardless of sex, age, or baseline diuretic use. SGLT2i use was also associated with fewer recurrent flares among gout patients (rate ratio, 0.67; 95% CI, 0.55-0.82; and RD, -20.9; 95% CI, -31.9 to -10.0 per 1000 person-years). HR and RD for MACE associated with SGLT2i use were 0.87 (95% CI, 0.77-0.98) and -3.58 (95% CI, -6.19 to -0.96) per 1000 person-years. For control outcomes, SGLT2i users had lower risk of HF (HR, 0.53; 95% CI, 0.38-0.76), as expected, with no difference in osteoarthritis (HR, 1.11; 95% CI, 0.94-1.34). Results were similar when applying propensity score overlap weighting. Conclusions In this population-based cohort study, the gout and cardiovascular benefits associated with SGLT2i in these target trial emulations may guide selection of glucose-lowering therapy in patients with T2D, at risk for or already with gout.
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Affiliation(s)
- Natalie McCormick
- Rheumatology & Allergy Clinical Epidemiology Research Center, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston
- The Mongan Institute, Department of Medicine, Massachusetts General Hospital, Boston
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
- Arthritis Research Canada, Vancouver, British Columbia, Canada
| | - Chio Yokose
- Rheumatology & Allergy Clinical Epidemiology Research Center, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston
- The Mongan Institute, Department of Medicine, Massachusetts General Hospital, Boston
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Na Lu
- Arthritis Research Canada, Vancouver, British Columbia, Canada
| | - Deborah J. Wexler
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
- Diabetes Center, Massachusetts General Hospital, Boston
| | - J. Antonio Aviña-Zubieta
- Arthritis Research Canada, Vancouver, British Columbia, Canada
- Division of Rheumatology, Faculty of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Mary A. De Vera
- Arthritis Research Canada, Vancouver, British Columbia, Canada
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Rozalina G. McCoy
- Division of Endocrinology, Diabetes, and Nutrition, Department of Medicine, University of Maryland School of Medicine, Baltimore
- University of Maryland Institute for Health Computing, Bethesda
- Division of Gerontology, Department of Medicine, University of Maryland School of Medicine, Baltimore
| | - Hyon K. Choi
- Rheumatology & Allergy Clinical Epidemiology Research Center, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston
- The Mongan Institute, Department of Medicine, Massachusetts General Hospital, Boston
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
- Arthritis Research Canada, Vancouver, British Columbia, Canada
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Zhang R, Xie Q, Lu X, Fan R, Tong N. Research advances in the anti-inflammatory effects of SGLT inhibitors in type 2 diabetes mellitus. Diabetol Metab Syndr 2024; 16:99. [PMID: 38735956 PMCID: PMC11089742 DOI: 10.1186/s13098-024-01325-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 03/28/2024] [Indexed: 05/14/2024] Open
Abstract
Diabetes mellitus is one of the most significant global burden diseases. It is well established that a chronic, systemic, low-grade inflammatory condition is strongly correlated with type 2 diabetes mellitus (T2D) and the development of target-organ damage (TOD). Sodium-glucose cotransporter inhibitors (SGLTis), novel oral drugs for the treatment of diabetes, act mainly by reducing glucose reabsorption in proximal renal tubules and/or the intestine. Several high-quality clinical trials and large observational studies have revealed that SGLTis significantly improve cardiovascular and renal outcomes in T2D patients. Increasing evidence suggests that this is closely related to their anti-inflammatory properties, which are mainly manifested by a reduction in plasma concentrations of inflammatory biomarkers. This review analyses the potential mechanisms behind the anti-inflammatory effects of SGLTis in diabetes and presents recent evidence of their therapeutic efficacy in treating diabetes and related TOD.
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Affiliation(s)
- Ruining Zhang
- Department of Endocrinology, Center for Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, China
| | - Qingxing Xie
- Department of Endocrinology, Center for Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, China
| | - Xi Lu
- Department of Endocrinology, Center for Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, China
| | - Rongping Fan
- Department of Endocrinology, Center for Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, China
| | - Nanwei Tong
- Department of Endocrinology, Center for Diabetes and Metabolism Research, West China Hospital of Sichuan University, Chengdu, China.
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Tesfaye H, Wang KM, Zabotka LE, Wexler DJ, Schmedt N, Koeneman L, Seman L, Paik JM, Patorno E. Empagliflozin and Risk of Incident Gout: Analysis from the EMPagliflozin Comparative Effectiveness and SafEty (EMPRISE) Cohort Study. J Gen Intern Med 2024:10.1007/s11606-024-08793-9. [PMID: 38710868 DOI: 10.1007/s11606-024-08793-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 04/24/2024] [Indexed: 05/08/2024]
Abstract
BACKGROUND Hyperuricemia is frequently observed in patients with type 2 diabetes (T2D) and is associated with increased risk of gout and cardiovascular disease (CVD). Empagliflozin lowers serum urate levels by enhancing its urinary excretion. OBJECTIVE To compare initiators of empagliflozin vs dipeptidyl peptidase-4 inhibitor (DPP4i) and initiators of empagliflozin vs glucagon-like peptide-1 receptor agonist (GLP-1RA) with respect to the risk of incident gout events. DESIGN AND PARTICIPANTS Using three claims-based datasets from 08/2014 to 09/2019, we generated two cohorts (cohort 1: empagliflozin vs DPP4i; cohort 2: empagliflozin vs GLP-1RA) of adult patients with T2D and without prior history of gout or gout-specific medication dispensing separately in each dataset. To assess the risk of incident gout, we estimated hazard ratios (HR) and rate differences (RD) per 1000 person-years (PY) with their 95% confidence intervals (CI) before and after 1:1 propensity score (PS) matching adjusting for 141 baseline covariates. KEY RESULTS We identified 102,262 pairs of 1:1 propensity score-matched adults in cohort 1 and 131,216 pairs in cohort 2. Over a mean follow-up period of 8 months on treatment, the risk of gout was lower in patients initiating empagliflozin compared to DPP4i (HR = 0.69: 95% CI (0.60-0.79); RD = - 2.27: 95% CI (- 3.08, 1.46)) or GLP-1RA (HR = 0.83: 95% CI (0.73-0.94); RD = - 0.99: 95% CI (- 1.66, - 0.32)). Results were consistent across subgroups (sex, age, body mass index, chronic kidney disease, heart failure, cardiovascular disease, and concurrent diuretic use) and sensitivity analyses. CONCLUSIONS Among adults with T2D, the initiation of empagliflozin vs a DPP4i or GLP-1RA was associated with lower risk of incident gout, complementing results from a post hoc analysis of the EMPA-REG OUTCOME trial and previously published observational research focusing on the sodium-glucose co-transporter-2 inhibitor class in more narrowly defined study populations.
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Affiliation(s)
- Helen Tesfaye
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Katherine M Wang
- Division of Renal (Kidney) Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Center for Healthcare Organization & Implementation Research (CHOIR), VA Boston Healthcare System, Boston, MA, USA
| | - Luke E Zabotka
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Deborah J Wexler
- MGH Diabetes Center, Division of Endocrinology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Niklas Schmedt
- Boehringer Ingelheim International GmbH, Ingelheim, Germany
| | | | - Leo Seman
- Boehringer Ingelheim Pharmaceuticals, Inc, Ridgefield, CT, USA
| | - Julie M Paik
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Division of Renal (Kidney) Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Center for Healthcare Organization & Implementation Research (CHOIR), VA Boston Healthcare System, Boston, MA, USA
| | - Elisabetta Patorno
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
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Yokose C, McCormick N, Abhishek A, Dalbeth N, Pascart T, Lioté F, Gaffo A, FitzGerald J, Terkeltaub R, Sise ME, Januzzi JL, Wexler DJ, Choi HK. The clinical benefits of sodium-glucose cotransporter type 2 inhibitors in people with gout. Nat Rev Rheumatol 2024; 20:216-231. [PMID: 38472344 DOI: 10.1038/s41584-024-01092-x] [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] [Accepted: 02/07/2024] [Indexed: 03/14/2024]
Abstract
Gout is the most common form of inflammatory arthritis worldwide and is characterized by painful recurrent flares of inflammatory arthritis that are associated with a transiently increased risk of adverse cardiovascular events. Furthermore, gout is associated with multiple cardiometabolic-renal comorbidities such as type 2 diabetes, chronic kidney disease and cardiovascular disease. These comorbidities, potentially combined with gout flare-related inflammation, contribute to persistent premature mortality in gout, independently of serum urate concentrations and traditional cardiovascular risk factors. Although better implementation of standard gout care could improve gout outcomes, deliberate efforts to address the cardiovascular risk in patients with gout are likely to be required to reduce mortality. Sodium-glucose cotransporter type 2 (SGLT2) inhibitors are approved for multiple indications owing to their ability to lower the risk of all-cause and cardiovascular death, hospitalizations for heart failure and chronic kidney disease progression, making them an attractive treatment option for gout. These medications have also been shown to lower serum urate concentrations, the causal culprit in gout risk, and are associated with a reduced risk of incident and recurrent gout, potentially owing to their purported anti-inflammatory effects. Thus, SGLT2 inhibition could simultaneously address both the symptoms of gout and its comorbidities.
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Affiliation(s)
- Chio Yokose
- Rheumatology & Allergy Clinical Epidemiology Research Center (RACER), Mongan Institute, Massachusetts General Hospital, Boston, MA, USA.
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
| | - Natalie McCormick
- Rheumatology & Allergy Clinical Epidemiology Research Center (RACER), Mongan Institute, Massachusetts General Hospital, Boston, MA, USA
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Arthritis Research Canada, Vancouver, British Columbia, Canada
| | | | - Nicola Dalbeth
- Department of Medicine, University of Auckland, Auckland, New Zealand
| | - Tristan Pascart
- Department of Rheumatology, Lille Catholic University, Saint-Philibert Hospital, Lille, France
| | - Frédéric Lioté
- Université Paris Cité, Inserm UMR 1132 Bioscar, centre Viggo Petersen, Hôpital Lariboisière, Paris, France
- Rheumatology Department, Saint-Joseph Paris Hospital, Paris, France
| | - Angelo Gaffo
- Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, USA
- Birmingham VA Medical Center, Birmingham, AL, USA
| | - John FitzGerald
- Department of Medicine/Rheumatology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Veterans Health Affairs, Greater Los Angeles, Los Angeles, CA, USA
| | - Robert Terkeltaub
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, San Diego, CA, USA
| | - Meghan E Sise
- Harvard Medical School, Boston, MA, USA
- Division of Nephrology, Massachusetts General Hospital, Boston, MA, USA
| | - James L Januzzi
- Harvard Medical School, Boston, MA, USA
- Division of Cardiology, Massachusetts General Hospital, Boston, MA, USA
- Baim Institute for Clinical Research, Boston, MA, USA
| | - Deborah J Wexler
- Harvard Medical School, Boston, MA, USA
- MGH Diabetes Center, Massachusetts General Hospital, Boston, MA, USA
| | - Hyon K Choi
- Rheumatology & Allergy Clinical Epidemiology Research Center (RACER), Mongan Institute, Massachusetts General Hospital, Boston, MA, USA
- Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Arthritis Research Canada, Vancouver, British Columbia, Canada
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Jatuworapruk K, Louthrenoo W. Emerging therapeutic options for refractory gout. Nat Rev Rheumatol 2024; 20:73-74. [PMID: 38102493 DOI: 10.1038/s41584-023-01066-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Affiliation(s)
- Kanon Jatuworapruk
- Division of Rheumatology, Department of Medicine, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
| | - Worawit Louthrenoo
- Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
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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: 2] [Impact Index Per Article: 2.0] [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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