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New study aims to unlock secrets of rare calcification disease

NCT ID NCT07323082

Knowledge-focused Sponsor: Centre Hospitalier Universitaire de Nice Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 how certain natural chemicals in the body affect blood vessel health in people with pseudoxanthoma elasticum (PXE), a rare genetic disease that causes calcium buildup in tissues. Researchers will measure levels of these chemicals in 45 adults with PXE to better understand the disease and find possible new treatment targets. The study does not test a treatment but aims to gather knowledge.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 45 people

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

Started

Jan 2026

Expected to finish

Jan 2029

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 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: * Male or female, * Age \>18 years * Covered by social security, * Informed and having signed the informed consent form. PXE patients: \- with PXE defined according to current clinical criteria for PXE (REACT-PXE and PNDS consensus) and with an ABCC6 mutation. Exclusion Criteria: * Patients treated with bisphosphonates, vitamin K antagonists, and dietary supplements containing calcium, phosphates, magnesium, zinc, or iron. * Treatments likely to alter adenosine levels (caffeine, salbutamol, beta-blockers, etc.). * Progressive bone diseases (osteoporosis, chondrocalcinosis, gout, etc.). * Progressive and/or treated cancerous diseases. * Progressive and/or treated inflammatory or autoimmune diseases.

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Conditions

The condition(s) this trial relates to.

autosomal recessive inherited pseudoxanthoma elasticum pseudoxanthoma elasticum (inherited or acquired)

As listed by the trial registrant

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

Pseudoxanthoma elasticum

How to take part

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

  1. The places running it

    2 sites. 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

  • Angers University hospital

    NOT_YET_RECRUITING

    Angers, France

  • Nice University hospital

    RECRUITING

    Nice, France

More trials for these conditions

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