In this double-blind , randomised , placebo-controlled trial , we enrolled hypertensive patients , aged @ years , with albuminuria ( urinary albumin-to-creatinine ratio -LSB- UACR -RSB- in the first morning void urine of @ mg/g ) , an estimated glomerular filtration rate of @ mL/min per @ m@ or more , and who had received an angiotensin-converting enzyme inhibitor , an angiotensin receptor blocker , or both , for at least @ weeks .