A Two-Part, Single-Blind, Phase 3 Study Evaluating the Efficacy and Safety of Patiromer for the Treatment of Hyperkalemia (OPAL)

Summary

The purpose of this study was to evaluate the efficacy and safety of patiromer (investigational drug) in the treatment of hyperkalemia (high serum potassium). The study also evaluated the effect of withdrawing patiromer treatment and assessed whether chronic treatment with patiromer prevented the recurrence of hyperkalemia. The safety of patiromer treatment was also evaluated.

Timeline

Start

2013-02

Primary completion

2013-07

Completion

2013-08

Publications

• Background Weir MR, Bakris GL, Bushinsky DA, Mayo MR, Garza D, Stasiv Y, Wittes J, Christ-Schmidt H, Berman L, Pitt B; OPAL-HK Investigators. Patiromer in patients with kidney disease and hyperkalemia receiving RAAS inhibitors. N Engl J Med. 2015 Jan 15;372(3):211-21. doi: 10.1056/NEJMoa1410853. Epub 2014 Nov 21.
• Natale P, Palmer SC, Ruospo M, Saglimbene VM, Strippoli GF. Potassium binders for chronic hyperkalaemia in people with chronic kidney disease. Cochrane Database Syst Rev. 2020 Jun 26;6(6):CD013165. doi: 10.1002/14651858.CD013165.pub2.

Drugs

Indications