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Completed Phase 3 Interventional Results available

A Study to Test Whether ZS (Sodium Zirconium Cyclosilicate) Can Reduce the Incidence of Increased Blood Potassium Levels Among Dialized Patients.

ClinicalTrials.gov ID: NCT03303521

Public ClinicalTrials.gov record NCT03303521. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 22, 2026, 12:34 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 3b, Multicenter, Prospective, Randomized, Double Blind, Placebocontrolled Study to Reduce Incidence of Pre-dialysis Hyperkalemia With Sodium Zirconium Cyclosilicate (DIALIZE)

Study identification

NCT ID
NCT03303521
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
AstraZeneca
Industry
Enrollment
196 participants

Conditions and interventions

Conditions

Interventions

  • Placebo Drug
  • Sodium Zirconium Cyclosilicate (ZS) Drug

Drug

Eligibility (public fields only)

Age range
18 Years to 130 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 13, 2017
Primary completion
Nov 6, 2018
Completion
Nov 6, 2018
Last update posted
Feb 19, 2020

2017 – 2018

United States locations

U.S. sites
15
U.S. states
6
U.S. cities
14
Facility City State ZIP Site status
Research Site Los Angeles California 90022
Research Site Los Angeles California 90025
Research Site Ontario California 91762
Research Site San Dimas California 91773
Research Site Whittier California 90606
Research Site Kansas City Missouri 64108
Research Site St Louis Missouri 63110
Research Site Paterson New Jersey 07504
Research Site Fresh Meadows New York 11365
Research Site Great Neck New York 11021
Research Site Ridgewood New York 11385
Research Site The Bronx New York 10461
Research Site East Providence Rhode Island 02914
Research Site El Paso Texas 79924
Research Site Houston Texas 77004

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 38 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03303521, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 19, 2020 · Synced Jul 22, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03303521 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →