In this prospective , multicenter , open-labeled , randomized trial , the antialbuminuric effects of benidipine and hydrochlorothiazide were examined in renin-angiotensin system ( RAS ) inhibitor-treated patients with blood pressure ( BP ) readings of @/@ mmHg and @/@ mmHg , a urinary albumin to creatinine ratio ( UACR ) of @ mg/g , and an estimated glomerular filtration rate ( eGFR ) of @ ml/min/@ @ m ( @ ) .