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Hidden vitamin c crisis in seniors?

NCT ID NCT05668663

Knowledge-focused Sponsor: Hospices Civils de Lyon 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study checked vitamin C levels in 434 patients over 75 admitted to a geriatric unit. Researchers wanted to find out how many had low vitamin C and what factors put them at risk. The goal is to help doctors spot and treat this easily fixable deficiency more often.

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 could help doctors identify which older patients are at risk for vitamin C deficiency and guide simple supplementation.
What could go wrong
This is an observational study, not a treatment trial. It only measures prevalence and risk factors, so it won't directly improve health outcomes.

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

434 people

The number who actually took part.

Started

Jan 2023

Finished

May 2024

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

75 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: * All patient admitted in the geriatric study acute care unit * Aged more than 75 years-old. * Patient able to consent having signed a consent or patient unable to give consent, informed and not opposed to the study to the study and for whom a trustworthy person, or failing that family, or failing that, a close relative, has signed an informed informed consent * Patient affiliated to a social security system Exclusion Criteria: * More than 7 days of hospitalization prior to the admission in the study acute care unit. * Patients at the end of their life. No biological sample will be collected * Patients under a "sauvegarde de justice" procedurePatients under legal protection (guardianship, curatorship, "sauvegarde de justice" procedure), * Patient unable to consent without a trusted person (or family, or close friends) or without a trusted person (or family, or close friend) available within 2 days after the patient's admission.

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Conditions

The condition(s) this trial relates to.

scurvy

As listed by the trial registrant

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

Deficiency, vitamin C

Contacts and locations

Locations

  • Service de Médecine Gériatrique of the Hôpital Edouard Herriot (Pavillon K)

    Lyon, France

More trials for these conditions

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