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Abstract
Background
The effects of olmesartan (OLM) on blood pressure and kidney function in Japanese patients with chronic kidney disease (CKD) were compared between 20 mg twice daily (BID) and 40 mg once daily (QD) treatments.
Methods
The subjects were Japanese CKD patients with concurrent hypertension who had been treated with OLM 20 mg BID for at least 3 months on an outpatient basis (n=39). After a change in the treatment regimen to 40 mg OLM QD (after breakfast), blood pressure (BP) (n=39), morning home BP (n=13), estimated glomerular filtration rate (n=39), and urinary albumin-to-creatinine ratio (n=17) were monitored for 2 months.
Results
No significant change in office (mean ± standard deviation [SD] [mmHg], 143.9 ± 18.8/75.7 ± 12.0 to 141.6 ± 16.1/74.7 ± 11.7, not significant [ns]) or early morning home (mean ± SD [mmHg], 133.8 ± 15.9/71.2 ± 11.5 to 133.8 ± 13.9/74.5 ± 10.5, ns) BP was observed 2 months after the change in dose. The estimated glomerular filtration rate increased significantly (mean ± SD, 49.0 ± 28.0 to 51.8 ± 27.0, P<0.05), whereas urinary albumin-to-creatinine ratio did not change significantly (mean ± SD, 0.551 ± 0.445 to 0.364 ± 0.5194, ns).
Conclusion
High-dose OLM administered BID and QD had similar effects on outpatient and early morning home BP in CKD patients, suggesting that the BID regimen can be safely changed to a QD regimen. For CKD patients with hypertension requiring continuous long-term treatment, the possibility that the QD regimen might bring a greater therapeutic effect was suggested. However, recognizing the best blood pressure control level for a CKD patient is still a matter of debate, and should ideally be personalized.
Disclosure
The authors report no conflicts of interest in this work.