Phase 3 Study to Test the Safety and Effectiveness of WS016 for Treating High Potassium Levels Hyperkalemia

What this Trial Is About

Researchers are evaluating the drug WS016 in adults with hyperkalemia, a condition characterized by elevated potassium levels in the blood. This Phase 3 clinical trial aims to study the effectiveness and safety of WS016 through a two-part design including a corrective phase to quickly reduce potassium levels and a maintenance phase to keep potassium normal. An open-label extension phase is also included to assess longer-term treatment effects. In Part A, participants are first randomized to receive either oral WS016 12g or placebo three times daily for 48 hours during the corrective phase. Those who achieve normal potassium levels are then re-randomized to receive WS016 at doses of 6g, 12g, or 18g, or placebo once daily for 28 days in the maintenance phase. Part B is an open-label extension lasting 11 months, where participants receive WS016 starting at 12g daily, with dose adjustments based on potassium levels. Participants will have regular blood tests to monitor serum potassium and other health measures throughout the study. Researchers will track potassium levels during the maintenance phase and corrective phase to assess drug effects. Safety and tolerability will be monitored, and participants completing or discontinuing the maintenance phase may continue treatment in the extension phase. Overall participation can last up to nearly a year depending on enrollment in Part B.

A Two-Part, Phase 3 Study Evaluating the Efficacy and Safety of WS016 for the Treatment of Hyperkalemia