Blood-pressure control was similar in the two groups at enrollment, during adjustment
of the losartan dose, and at randomization. After adjustment of the lisinopril or placebo dose, the combination-therapy group had a slightly lower blood pressure than the monotherapy group (within 2 mm Hg) (Fig. S2 in the Supplementary Appendix). The change in the estimated GFR from randomization to 3 months was similar in the two groups (from 55±18 to 53±18 ml per minute per 1.73 m2 in the combination-therapy group and from 57±19 to 54±19 ml per minute per 1.73 m2 in the monotherapy group).