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Sodium Zirconium CyclosilicatePhase 3SZCNCT05382988

Sodium Zirconium Cyclosilicate Lowers Hyperkalemia After Parathyroidectomy

A Phase 3 study testing Sodium zirconium cyclosilicate in people with Sodium Zirconium Cyclosilicate and Hyperkalemia, run by Guangdong Provincial People's Hospital.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Sodium zirconium cyclosilicate (SZC) has been demonstrated for its serum potassium-lowering efficacy and safety in hyperkalemia hemodialysis patients. However, the effects of SZC during the perioperative period remained unknown. Read more about this study

Who is it for?
Any age
What is being tested?
Sodium zirconium cyclosilicate
Could I receive a placebo?
No, everyone receives an active treatment
How many people
62 participants
Where
No sites listed yet
Study dates
Nov 2016to Dec 2021
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Secondary Hyperparathyroidism (SHPT) is a common and severe manifestation of chronic kidney disease (CKD), especially in end-stage renal disease (ESRD) patients. ESRD MHD with SHPT patients were recruited into this study

Who cannot join

  • Patients with severe cardiovascular disease who cannot tolerate general anesthesia surgery were not included in this study.

About this study

Official title: Effect of Sodium Zirconium Cyclosilicate on Hyperkalemia After Parathyroidectomy in Secondary Hyperparathyroidism Patients With Maintenance Hemodialysis

Sodium zirconium cyclosilicate (SZC) has been demonstrated for its serum potassium-lowering efficacy and safety in hyperkalemia hemodialysis patients.

However, the effects of SZC during the perioperative period remained unknown.

This experiment aimed to determine whether using SZC would impact the serum potassium levels in patients with maintenance hemodialysis after parathyroidectomy (PTX).

Read the detailed description

Secondary Hyperparathyroidism (SHPT) is a common and severe manifestation of chronic kidney disease (CKD), especially in end-stage renal disease (ESRD) patients. SHPT is characterized by elevated parathyroid hormone (PTH) synthesis and secretion accompanied by parathyroid cell hyperplasia.Elevated PTH level is considered as a risk factor for fracture, hyperphosphatemia, anemia, and cardiovascular calcification that worsens the health-related quality of life and increases mortality.

Parathyroidectomy (PTX) has been considered the first-line treatment for severe SHPT. Generally, approximately 29% of patients with end-stage renal disease undergo parathyroidectomy to control secondary hyperparathyroidism. Successful PTX may rapidly reduce serum PTH levels and alleviate clinical symptoms.

Postoperative hyperkalemia is one common complication after PTX. With an incidence of 25-80%, in previous research, hyperkalemia has been reported during and immediately after PTX, leading to devastating consequences.

SZC increases fecal potassium excretion and lowers serum potassium levels by binding potassium ions, demonstrated to reduce serum potassium to normal levels within 48 hours in hyperkalemia patients.

Nevertheless, the effects of SZC during the perioperative period remained unknown.

Sixty-two patients with secondary hyperparathyroidism (SHPT) were randomly recruited into the experimental and control groups. Patients in the experimental group were required to take SZC 10g before PTX. Laboratory chemistries, including serum potassium levels, serum calcium levels and serum PTH were obtained before and after surgery. We aimed to determine whether using SZC would impact the serum potassium levels in patients with maintenance hemodialysis after parathyroidectomy (PTX).

Being tested
Sodium zirconium cyclosilicate
Medical subject headings
Hyperkalemia, Hyperparathyroidism, Secondary

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Sodium zirconium cyclosilicateDrug

    The experimental group was required to take SZC 10g at 6 am on the day of surgery.

Study groups in NCT05382988
Study groupRoleWhat they receive
Experimental GroupExperimentalThe experimental group was required to take SZC 10g at 6 am on the day of surgery.
Receives: Drug: Sodium zirconium cyclosilicate
Control GroupNo interventionNo additional intervention was performed

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change of serum potassium levels

    Laboratory chemistry measurement

    Measured: Serum potassium levels were checked at three time points, which were t0 (6 am on the day of surgery), t1 (immediate after surgery), and t2 (9 pm on the day of surgery), respectively.

Secondary outcomes (1)
  1. Change of serum calcium levels

    Laboratory chemistry measurement

    Measured: Serum calcium levels were checked at three time points, which were t0 (6 am on the day of surgery), t1 (immediate after surgery), and t2 (9 pm on the day of surgery), respectively.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 May 2022
  2. Study startNov 2016
  3. Primary completionDec 2021
  4. Study completionDec 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
All patients had dialysis within 24h before PTX, then were treated with PTX in Otolaryngology Head and Neck Surgery department in Guangdong Provincial People's Hospital by one experienced surgeon. The experimental group was required to take SZC 10g immediately after the blood test at 6 am, while no medical treatment was performed on patients in the control group.
Masking
None (open label)
Enrolment
62 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05382988
Sponsor's protocol ID
SZC AFTER PTX
Acronym
SZC
Status last verified
Apr 2022
First submitted
9 May 2022
Last updated
19 May 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Kang J, Li S, Su J, Xiao Z, Zhang S, Liu S, Ge P. Effect of sodium zirconium cyclosilicate on hyperkalemia after parathyroidectomy in secondary hyperparathyroidism patients with maintenance hemodialysis: A randomized trial. Medicine (Baltimore). 2024 Dec 27;103(52):e40917. doi: 10.1097/MD.0000000000040917.

    PubMed 39969301

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Sodium zirconium cyclosilicate in people with Sodium Zirconium Cyclosilicate and Hyperkalemia, run by Guangdong Provincial People's Hospital.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 May 2022. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change of serum potassium levels (time frame: Serum potassium levels were checked at three time points, which were t0 (6 am on the day of surgery), t1 (immediate after surgery), and t2 (9 pm on the day of surgery), respectively.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05382988, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 May 2022.

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