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Vitamin d deficiency common in kidney transplant candidates, study finds

NCT ID NCT07409623

Knowledge-focused Sponsor: Shahid Beheshti University of Medical Sciences 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 measured vitamin D levels in 552 people: those on dialysis waiting for a kidney transplant and healthy kidney donors. Researchers wanted to see how common vitamin D deficiency is and whether it relates to immune function or health outcomes. The goal is to improve screening and care for kidney patients.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this study could help doctors better screen and manage vitamin D deficiency in kidney patients awaiting transplant.
What could go wrong
This is an observational study that only looks at existing data, so it cannot prove cause and effect. Results may not apply to other populations.

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.

Participants

552 people

The number who actually took part.

Started

Feb 2025

Finished

Feb 2026

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.

Who is studied

Data Source: Retrospective extraction of medical records. Study Groups: * Hemodialysis patients listed for kidney transplantation. * Healthy living kidney donors. Main Study Variable: • Serum 25-hydroxyvitamin D \[25(OH)D\]. Demographic Variables: * Age * Sex Group Variable: • Clinical status (hemodialysis transplant candidate vs living donor).

Ages

18 years and older

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: * Hemodialysis patients listed for kidney transplantation. * Healthy living kidney donors. Exclusion Criteria: NO

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Conditions

The condition(s) this trial relates to.

vitamin D deficiency

As listed by the trial registrant

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

Vitamin D deficiency

Contacts and locations

Locations

  • Nooshin Dalili

    Tehran, 1666663421, Iran

More trials for these conditions

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