NCT03172702

Open-label Safety of Sodium Zirconium Cyclosilicate for up to 12 Months in Japanese Subjects With Hyperkalemia

A Phase 3 Multicenter Open-label Maintenance Study to Investigate the Long-term Safety of ZS (Sodium Zirconium Cyclosilicate) in Japanese Subjects With Hyperkalemia

• Status: Completed
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 150 (actual)
• Sponsor: AstraZeneca · Industry
• Sex: All
• Age: 18 Years – 130 Years
• Healthy volunteers: Not accepted

Summary

The Open-Label Maintenance Study contains an Correction Phase, in which subjects will be dosed with ZS 10 g three times daily (tid) for 24 to 72 hours, followed by a 12-month long-term Maintenance Phase.

Detailed description

The study will start with the screening period, and all baseline parameters should be measured/collected up to 1 day prior to administration of first dose of study drug on Correction Phase Day 1. Subjects with 2 consecutive i-STAT potassium values ≥ 5.1 mmol/L will enter the Correction Phase and receive ZS 10 g TID for up to 72 hours, depending on potassium values. Once normokalemia (i-STAT potassium between 3.5 and 5.0 mmol/L, inclusive) is restored (whether after 24, 48 or 72 hours), subjects will be entered into the Maintenance Phase to be dosed with ZS at a starting dose of 5 g QD. Potassium (i-STAT and Central Laboratory) will be measured Days 1, 2, 5, 12, 19 and 26 throughout the first month of study and every 4 weeks thereafter until Day 362 (Visit 23) then patients will be required to complete the EOS visit which is 7±1 days after the last administration of study medication. For patients who do not enter the Maintenance Phase the last visit will be 7±1 day after the last treatment dose in the Correction Phase. The total expected study duration for an individual patient is approximately 53-54 weeks.

Conditions

• Hyperkalemia

Interventions

Type	Name	Description
DRUG	Zirconium Cyclosilicate	Correction Phase Dosing: Sodium Zirconium Cyclosilicate 10 g three times daily (TID) from 24 to 72 Extended Dosing: Sodium Zirconium Cyclosilicate 5 g once daily (QD). Sodium Zirconium Cyclosilicate dose increased or decreased in increments/decrements of 5 g QD up to a maximum of 15 g QD or a minimum of 5 g every other day (QOD) (or 2.5 g QD) based on i-STAT potassium measurements up to 12 months.

Timeline

• Start date: 2017-09-04
• Primary completion: 2019-07-06
• Completion: 2019-07-06
• First posted: 2017-06-01
• Last updated: 2020-05-01
• Results posted: 2020-05-01

Locations

42 sites across 1 country: Japan