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  • Title: Comparison of the efficacy and safety of single-pill fixed-dose combinations of losartan/hydrochlorothiazide and valsartan/hydrochlorothiazide in patients with hypertension (SALT-VAT study).
    Author: Shiga Y, Miura S, Morii J, Kuwano T, Mitsutake R, Uehara Y, Inoue A, Saku K.
    Journal: Intern Med; 2011; 50(21):2477-83. PubMed ID: 22041345.
    Abstract:
    OBJECTIVE: We analyzed the efficacy and safety of Preminent(®) [losartan (50 mg/day)/HCTZ (12.5 mg/day)] compared to CodioMD(®) [valsartan (80 mg/day)/HCTZ (6.25 mg/day)]. METHODS: In this study, 31 hypertensive patients after receiving 3 months of Preminent(®) (Stage A) were enrolled. We applied a changeover with switching from Preminent(®) to CodioMD(®) (Stage B). We then applied another changeover with switching from CodioMD(®) to Preminent(®) after 3 months (Stage C). RESULTS: Average values of 24-h blood pressure (BP), daytime BP and nighttime BP using ambulatory BP monitoring (ABPM) significantly increased from Stage A to B [4/3 mmHg, 5/3 mmHg and 3/3 mmHg, respectively]. Average values of 24-h BP, morning BP, daytime BP, nighttime BP significantly decreased from the end of Stage B to C [-5/-5 mmHg, -4/-6 mmHg, -5/-5 mmHg and -6/-4 mmHg, respectively]. Interestingly, the serum levels of uric acid and the urinary albumin/creatinine ratio showed a significant increase after the change to CodioMD(®). Since these adverse effects did not disappear after the return to Preminent(®) at the end of Stage C, we performed an additional 3-month follow-up (extended stage). These adverse effects finally disappeared at the end of this extended stage. CONCLUSION: Single-pill fixed-dose combination therapy using Preminent(®) showed significant 24-h BP-lowering effects and was safe when compared with CodioMD(®).
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