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Management and long-term serum urate control in gout: a population-based primary care cohort study
Maria Antonia Pou1,2,3, Carlen Reyes3,4, Daniel Martinez-Laguna3,5
1Departament de Medicina, Universitat Autònoma de Barcelona, Catalonia, Spain marianpou@gmail.com.
Insights
Long-term serum urate control in gout is poor, with only 12.4% of patients achieving target levels. Optimizing urate-lowering therapy (ULT) initiation, dosage, and adherence is crucial for better gout management.
Area of Science:
- Rheumatology
- Primary Care Medicine
- Epidemiology
Background:
- Gout is a common inflammatory disease with significant cardiovascular risks.
- Current urate-lowering therapies (ULT) are effective but gout management is often suboptimal.
Purpose of the Study:
- To assess clinical characteristics and treatment patterns in gout patients.
- To identify factors influencing long-term serum urate (SU) control.
Main Methods:
- Retrospective cohort study of 94,759 patients diagnosed with gout between 2012-2023.
- Analysis of demographic, clinical, and ULT data from a large primary care database.
- Good SU control defined as SU <6 mg/dL for >=80% of follow-up.
Main Results:
- Only 12.4% of patients achieved good SU control, with no improvement observed over time.
- Common comorbidities include hypertension, dyslipidaemia, diabetes, and chronic kidney disease.
- Factors associated with poor control included delayed ULT initiation, male sex, obesity, and comorbidities.
Conclusions:
- Long-term SU control in gout remains a significant challenge in primary care settings.
- Early ULT initiation, dose optimization, and improved adherence are key modifiable targets.
- Improving gout management requires a focus on these actionable strategies.
Background:
Gout is a prevalent chronic inflammatory disease associated with a substantial clinical and cardiovascular burden. Despite the availability of effective urate-lowering therapies (ULTs), gout management remains suboptimal.
Aim:
To describe clinical characteristics and treatment patterns, and to identify factors associated with long-term serum urate (SU) control in gout.
Design And Setting:
Retrospective population-based cohort study using the primary care research database 'Sistema d'Informació per al Desenvolupament de la Investigació en Atenció Primària' (SIDIAP), covering >75% of the Catalan population within a universal healthcare system.
Method:
Individuals with incident gout diagnosed between 2012 and 2023 were included. Demographic, clinical, and ULT data were collected. Good SU control was defined as SU levels <6 mg/dL for ≥80% of follow-up time. Factors associated with SU control were analysed.
Results:
A total of 94 759 patients were included (mean age 66.25 [standard deviation 14.64] years; 79.58% male [75 412/94 759]; median follow-up 5.44 [interquartile range 2.54-8.24] years). In the 94 759 patients, hypertension (65.15%, n = 61 732), dyslipidaemia (50.58%, n = 47 932), diabetes (24.19%, n = 22 919), and chronic kidney disease (32.80%, 27 013/82 270 ) were common. Of the patients, 88.95% (n = 84 288) had ≥1 SU measurement. In total, 37.30% (35 343/94 759) had never received ULT. Allopurinol was the initial therapy in 96.09% of treated patients. Only 12.40% (10 453/84 288) achieved good SU control, with no improvement over time. Short ULT duration (≤25 days) occurred in 15.92% (9459/59 416) of patients. Good control was associated with longer treatment duration, higher allopurinol doses, febuxostat use, and better adherence, whereas delayed ULT initiation, male sex, obesity, chronic kidney disease, dyslipidaemia, and hypertension were associated with poor control.
Conclusion:
Long-term SU control in gout remains poor in primary care. Early initiation of ULT, appropriate dose optimisation, and improved adherence represent key modifiable targets to improve gout management.
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