Efficacy and Safety of Fosrenol in Treating Elevated Serum Phosphate Levels in Adults With End Stage Renal Disease

A Phase IV, Open-Label, Multi-Center Trial Evaluating the Efficacy of Fosrenol Compared to Existing Therapy in Adults With End Stage Renal Disease Treated for Hyperphosphatemia

The purpose of this study is to test how well lanthanum carbonate reduces the pre-dialysis level of serum phosphorus in subjects undergoing dialysis due to end stage renal disease and to determine the patient and physician's satisfaction.

Inclusion Criteria:

• Patients with ESRD who currently require treatment for hyperphosphatemia

Exclusion Criteria:

• Female patient who is pregnant or lactating
• Patient has used any investigational product within 30 days of screening