Effects of losartan and irbesartan on serum uric acid in hypertensive patients with hyperuricaemia in Chinese population

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Abstract
Therapy with losartan compared to irbesartan was performed in a Chinese sample of hypertensive patients with elevated serum uric acid (SUA) levels. After 1 week of screening and a 2 week single-blinded placebo baseline period, patients were treated for 4 weeks with losartan 50 mg or irbesartan 150 mg. After 4 weeks, patients with SiDBPμmol/l in the irbesartan group. At 8 weeks of therapy, SUA decreased by 63 μmol/l in the losartan group compared to 12 μmol/l in the irbesartan group (P<0.0001). Blood pressure declined comparably in both groups from 151/92 mmHg at baseline to 137/83 and 135/83 (losartan and irbesartan, respectively, NS). No severe AEs were found for either treatment group. Therapy with losartan decreased SUA levels significantly more than irbesartan in Chinese patients with hypertension and elevated SUA levels, demonstrating the unique uricosuric effect of this ARB in this ethnic group.