TerminatedPhase 3

A Study to Evaluate the Effect of Sodium Zirconium Cyclosilicate on Chronic Kidney Disease (CKD) Progression in Participants With CKD and Hyperkalaemia or at Risk of Hyperkalaemia

Stopped: The study started enrollment in Sep 2021 and despite huge efforts the rate of patient enrollment continued to be below target such that the completion of the study within a reasonable timeframe was deemed very unlikely.

United States, Argentina, Brazil1,112 participantsStarted 2021-09-30

Plain-language summary

The purpose of this study is to evaluate the effect of Sodium Zirconium Cyclosilicate (SZC), as adjunct to ACEi/ARB therapy (lisinopril or valsartan), on slowing CKD progression (assessed as the reduction in participant's glomerular filtration rate \[eGFR\] decline over time) in participants with hyperkalaemia or at high risk of hyperkalaemia.

Who can participate

Age range

18 Years – 130 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Cohort A: Hyperkalaemia (S-K \> 5.0 to ≤ 6.5 mmol/L) as measured by the central laboratory, and on adequate\* or limited\*\* RAASi therapy due to hyperkalaemia.
. Cohort B: Normokalaemia (S-K ≥ 3.5 to ≤ 5.0 mmol/L) as measured by the central laboratory and on limited\*\* RAASi therapy due to high risk of hyperkalaemia. High risk of hyperkalaemia is defined as:

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Total eGFR Slope (Coprimary Analysis #1)

Timeframe: Baseline (Maintenance phase) to visit 17 (week 69)

Chronic eGFR Slope (Coprimary Analysis #2)

Timeframe: 12 weeks to visit 17 (week 69)

Trial details

NCT IDNCT05056727

SponsorAstraZeneca

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2024-02-07

Results submitted2025-02-12

View on ClinicalTrials.gov More Renal Insufficiency, Chronic trials