RECRUITING

An Open-label Study to Assess Safety and Efficacy of SZC in Paediatric Patients With Hyperkalaemia

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

Sodium zirconium cyclosilicate has been shown to be effective and safe in adults for the treatment of hyperkalaemia, and therefore it is expected to be beneficial in children. This study will evaluate the efficacy, safety and tolerability of sodium zirconium cyclosilicate for the treatment of hyperkalaemia in children \<18 years of age. Approximately 140 participants will enter CP at approximately 46 sites in locations including but not limited to Europe and North America for this study. Treatment will include 3 phases: the CP, MP, and LTMP. Enrolment will start in 2 cohorts, ages 6 to \< 12 years and 12 to \< 18 years. After review of accumulated data, the independent Data Monitoring Committee (iDMC) will recommend whether to open enrolment in the ages 2 to \< 6 years cohort and later in the ages 0 to \< 2 years cohort. All eligible participants with hyperkalaemia will enter an open-label Correction Phase (CP) receiving a fixed dose of SZC three times daily (TID) for up to 3 days until normokalaemia is achieved. Within each age cohorts 2 to \< 18 years, initial participants will be allocated to the dose level (DL) based on body weight equivalent to an adult 5 g TID. After recommendation of higher DLs by the iDMC, subsequent participants may be allocated in the CP to on body weight equivalent to an adult 10 g TID and then potentially on body weight equivalent to an adult 15 g TID. All participants in the ages 0 to \< 2 years cohort will be assigned to the same DL which will be decided based on data from older age cohorts. Participants who successfully achieve normokalaemia in the CP will enter a 28-day open-label Maintenance Phase (MP), which will be initiated with once daily administration of the dose received TID in the CP. During MP, the Investigator is able to titrate the dose up or down in the range 2.5 g to 15 g body weight equivalent to maintain normokalaemia. For participants who, at the end of MP, are normokalaemic or hyperkalaemic without being on maximum dose, the MP is followed by the option to continue the study in a long term maintenance phase (LTMP) where the same titration regimen is used as in MP

Official Title

An Open-label Study to Assess Safety and Efficacy of SZC in Paediatric Patients With Hyperkalaemia

Quick Facts

Study Start:2019-04-02
Study Completion:2026-06-29
Study Type:Not specified
Phase:Not Applicable
Enrollment:Not specified
Status:RECRUITING

Study ID

NCT03813407

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:0 Years to 18 Years
Sexes Eligible for Study:ALL
Accepts Healthy Volunteers:No
Standard Ages:CHILD, ADULT
Inclusion CriteriaExclusion Criteria
  1. 1. Provision of written informed consent of the participant or legal representative, and informed assent from the participant (as appropriate)
  2. 2. Female or male from birth to \< 18 years of age (for the study duration).
  3. 3. Participants (including those receiving a stable peritoneal dialysis regimen for a minimum of 2 months) requiring long-term treatment of hyperkalaemia (chronic hyperkalaemia) in the age cohort ≥ 2 years, and participants requiring either short- or long-term treatment for hyperkalaemia (acute and chronic hyperkalaemia) in the age cohort \< 2 years.
  4. 4. Participants must meet the following criteria for hyperkalaemia: Please refer to the Table 6 in the protocol.
  5. 5. Using digital ECG, QT interval corrected by Bazett's method (QTcB) must meet the age-appropriate parameters at Screening: a. For participants aged 0 to ≤ 3 days after birth: \< 450 ms b. For participants aged \>3 days to \< 12 years: \< 440 ms c. For participants aged ≥ 12 to \< 18 years: \< 450 ms (male), \< 460 ms (female) All QTcB values outside the reference values specified in the protocol should be manually re-measured and re-calculated, and if there is a difference in measurement between the automatic and manual ECG, the manual measurement should always be considered correct.
  6. 6. Ability to have repeated blood draws or effective venous catheterisation.
  7. 7. Females of childbearing potential (defined as a female with potential of becoming pregnant who has experienced her menarche) must have a negative pregnancy test within one day prior to the first dose of SZC on CP Study Day 1 and sexually active females of childbearing potential must be using 2 forms of medically acceptable contraception with at least one being a barrier method
  8. 8. Optional open-label, LTMP only:
  9. 1. Provision of written informed consent of the participant or legal representative, and informed assent from the participant (as appropriate) to take part in the LTMP.
  10. 2. Participants who are normokalaemic at the end of MP or hyperkalaemic and not on maximum dose.
  11. 3. Participants who would benefit from long-term treatment for their hyperkalaemia, as judged by the Investigator.
  1. 1. Neonates with a gestational age \< 37 weeks at birth or a birth weight \< 2500 g.
  2. 2. Term and preterm neonates with suspected conditions predisposing them to intestinal ischaemia (eg, perinatal hypoxia or sepsis).
  3. 3. Participants with pseudohyperkalaemia caused by excessive fist clenching to enable venepuncture, by haemolysed blood specimens, or by severe leukocytosis or thrombocytosis.
  4. 4. Participants with hyperkalaemia due to soft-tissue damage from crush injury or burns. 5. Participants with hyperkalaemia due to a secondary cause, such as dehydration, excessive use of K+ supplements, or drug use (eg, beta-adrenergic antagonists) and that would be more appropriately treated with other interventions (eg, fluid resuscitation, dose adjustments of medications).
  5. 6. Participants with transient iatrogenic hyperkalaemia (eg, due to treatment with tacrolimus).
  6. 7. Participants treated with lactulose, rifaximin (XIFAXAN™), or other nonabsorbed antibiotics for hyperammonaemia within the last 7 days.
  7. 8. Participants treated with CPS, sodium polystyrene sulfonate (eg, KAYEXALATE™), or patiromer within the last 4 days prior to first dose of study treatment.
  8. 9. Participants with a life expectancy of less than 3 months. 10. Participants who are known to have tested Human Immunodeficiency Virus (HIV) positive.
  9. 11. Presence of any condition which, in the opinion of the Investigator, places the participant at undue risk or potentially jeopardises the quality of the data to be generated. 12. Known hypersensitivity or previous anaphylaxis to SZC or to components thereof.
  10. 13. Participants with cardiac arrhythmias that require immediate treatment. 14. Participants with a family history of long QT syndrome. 15. Participants on haemodialysis. 16. Participants with a history of bowel obstruction. 17. Participants with severe gastrointestinal disorder or major gastrointestinal surgery (eg, large bowel resection).
  11. 18. Involvement in the planning and/or conduct of the study (applies to both AstraZeneca staff and/or staff at the study site).
  12. 19. Previous treatment with SZC. 20. Treatment with a drug or device within the last 30 days prior to first dose of study treatment that has not received regulatory approval at the time of study entry.
  13. 21. Previous enrolment in the present study. 22. Females who are pregnant, breastfeeding, or planning to become pregnant. 23. Judgement by the Investigator that the participant should not participate in the study if the participant is unlikely to comply with study procedures, restrictions, and requirements. 24. If the participant has evidence of Coronavirus disease 2019 (COVID-19) within 2 weeks prior to enrolment (a positive COVID-19 test or suspicion of COVID-19 infection) the participant cannot be enrolled in the study.

Contacts and Locations

Study Contact

AstraZeneca Clinical Study Information Center
CONTACT
1-877-240-9479
information.center@astrazeneca.com

Study Locations (Sites)

Research Site
Birmingham, Alabama, 35233
United States
Research Site
Atlanta, Georgia, 30322
United States
Research Site
Baltimore, Maryland, 21287
United States
Research Site
Grand Rapids, Michigan, 49503
United States
Research Site
Saint Louis, Missouri, 63104
United States
Research Site
Hackensack, New Jersey, 07601
United States
Research Site
New York, New York, 10029
United States
Research Site
Stony Brook, New York, 11794
United States
Research Site
Charlotte, North Carolina, 28207
United States
Research Site
Winston-Salem, North Carolina, 27157
United States
Research Site
Akron, Ohio, 44308
United States
Research Site
Cincinnati, Ohio, 45229
United States
Research Site
Morgantown, West Virginia, 26506-7900
United States

Collaborators and Investigators

Sponsor: AstraZeneca

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2019-04-02
Study Completion Date2026-06-29

Study Record Updates

Study Start Date2019-04-02
Study Completion Date2026-06-29

Terms related to this study

Keywords Provided by Researchers

  • sodium zirconium cyclosilicate
  • Hyperkalaemia in children

Additional Relevant MeSH Terms

  • Hyperkalaemia