In a 6-month study of 599 patients with hypertension, type 2 diabetes mellitus and nephropathy, all of whom were receiving losartan 100 mg and optimised antihypertensive background therapy, addition of aliskiren 300 mg achieved a 20% reduction versus placebo in urinary albumin: creatinine ratio (UACR), i. e. from 58 mg/ mmol to 46 mg/ mmol.