Fig. 1.

Overview of the study design. ^a Screening was only required once, either before part 1, if participating, or before part 2 of the study. ^b The washout period was up to 3 weeks and was only required if serum phosphorus levels were below age-specific KDOQI targets

CC calcium carbonate, KDOQI Kidney Disease Outcomes Quality Initiative, LC lanthanum carbonate, PK pharmacokinetic