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Could a simple supplement protect hearts in kidney failure?

NCT ID NCT03565913

Disease control Sponsor: University of Texas Southwestern Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a special form of calcium and magnesium (effervescent calcium-magnesium citrate) can slow down harmful calcium buildup in the heart and blood vessels of people with end-stage kidney disease on dialysis. About 269 adults will take either this supplement or a standard calcium treatment for up to several years. The goal is to see if the new supplement reduces heart damage and improves bone health compared to the usual care.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2/3

Runs two stages together: whether the treatment works, then large-scale confirmation.

Participants

269 people

The number who actually took part.

Started

Jan 2017

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 99 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adult subjects (\> 21 years of age, any cause of CKD) of either gender of any ethnicity with CKD Stage V on hemodialysis will be recruited. Patients with Type II diabetes and hypertension will be allowed. Treatment with drugs for management of osteoporosis (bisphosphonate, teriparatide, or denosumab) or for chronic kidney disease, customary drugs for hypertension or diabetes, and exogenous estrogen or selective estrogen receptor modulators will be allowed. Exclusion Criteria: * Patients with serum Mg \> 3.65 mg/dL (3 meq/L) will be excluded (de Francisco, 2010). Also excluded from the study will be those with bowel disease, hypercalcemia, hypophosphatemia (serum P \< 2.5 mg/dL) and treatment with adrenocorticosteroids or aluminum-containing antacids or drugs.

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Conditions

The condition(s) this trial relates to.

chronic renal failure syndrome end stage renal failure

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

CKD stage 5

Contacts and locations

Locations

  • DaVita Dialysis Centers

    Dallas, Texas, 75224, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.