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New study aims to crack the code of deadly skin hardening in kidney patients

NCT ID NCT07511283

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at a rare but serious condition called calciphylaxis, where small blood vessels in the skin harden, often leading to death. Researchers will compare 860 adults with chronic kidney disease—some who have calciphylaxis and some who don't—to find clues about what causes it and how to spot it early. The goal is to gather knowledge that can lead to better prevention and treatment.

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

About 860 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Jun 2040

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.

Who is studied

Patients with chronic kidney disease diagnosed or suspected for calciphylaxis matched control patients, healthy reference group. National study in Denmark

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: Cases * Age ≥18 years. * CKD. * Suspicion of calciphylaxis or newly diagnosed calciphylaxis episode. The suspicion or diagnosis of calciphylaxis is a mutual decision of the involved medical specialties (nephrologist, dermatologist, pathologist, other). * Ability to give informed consent. * Ability to participate in a clinical study as assessed by the local investigator. * Provides written informed consent. Controls * Age ≥18 years. * CKD * Ability to give informed consent. * Ability to participate in a clinical study as assessed by the local investigator. * Provides written informed consent. Healthy reference group * Age ≥18 years. * Self-assessed as healthy, confirmed by local investigators at inclusion Exclusion Criteria: Cases \- the calciphylaxis diagnosis becomes excluded Controls - Being diagnosed with calciphylaxis Healthy controls Up to 60 years of age: eGFR below 60 ml/min/1.72m2. \- Over 60 years of age: eGFR below the 95% confidence interval for eGFR adjusted for age (Danish Society of Nephrology references ranges)

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Odense University Hospital

    RECRUITING

    Odense, 5000, Denmark

More trials for these conditions

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