Inclusion criteria
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1. 18 years old ≤ age ≤ 80 years old;
2. Meets the 2019 Western medicine diagnostic criteria for "hyperuricemia" as outlined in the "China Hyperuricemia and Gout Management Guidelines (2019)";
3. Meets the diagnostic criteria for "spleen deficiency or damp-heat stasis";
4. Fasting serum uric acid levels > 420 μmol/L within 3 months prior to enrollment, and meets one of the following conditions:
1) Has a history of hyperuricemia (HUA), no complications, baseline fasting serum uric acid level ≥ 9.0 mg/dL (540 μmol/L);
2) Has a history of HUA with one or more of the following conditions (hypertension, dyslipidemia, diabetes, obesity, stroke, coronary heart disease, heart failure, uric acid nephrolithiasis, renal impairment (≥ CKD stage 2)), baseline fasting serum uric acid level ≥ 8 mg/dL (480 μmol/L) and maintains previous treatment during the trial;
3) Has a history of gout, no complications, baseline serum uric acid level ≥ 8.0 mg/dL (480 μmol/L);
4) Has a history of gout with one or more of the following conditions (≥ 2 gout attacks per year, tophi, chronic gouty arthritis, kidney stones, chronic kidney disease, hypertension, diabetes, dyslipidemia, stroke, ischemic heart disease, heart failure, and onset age < 40 years), baseline serum uric acid level ≥ 7 mg/dL (420 μmol/L) and maintains previous treatment during the trial.
5. CKD stage < IV (glomerular filtration rate ≥ 30 ml/min/1.73m²);
6. Obtains voluntary informed consent from the participant, approved by the ethics committee, prior to the start of the trial.
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