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Zinc pills could keep seniors out of the hospital

NCT ID NCT07367412

Disease control Sponsor: Herlev Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether taking a daily zinc supplement for one year can help older adults (65+) avoid infections, reduce antibiotic use, and spend more time at home instead of in the hospital. Researchers will compare 8,000 participants who take zinc to those who do not, tracking hospital visits and health outcomes over 12 months.

What this could mean

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

Active substance
zinc (zinc sulphate) dietary supplement
What this could lead to
If it works, this could point toward a simple, low-cost way to help older adults stay healthier and out of the hospital.
What could go wrong
This is a large but early-stage trial, and zinc supplements may not reduce infections or hospital stays. Results may not apply to all older adults.

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 8,000 people

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

Started

Feb 2026

Expected to finish

Mar 2028

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

65 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: * All medical patients aged ≥ 65 years assessed at the Medical Emergency Department, Herlev Hospital Exclusion Criteria: * Self-supplementing with zinc at time of assessment (\> 10 mg zinc/day) * Terminal illness (life expectancy \< 6 months, estimated by Clinical Frailty Scale ≥8) * Patients receiving parenteral nutrition (partial or complete) * Patients treated with hemodialysis or peritoneal dialysis * Patients know with known severe dementia * Patients who do not understand Danish and patients with temporary civil person registration numbers (CPR)

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Conditions

The condition(s) this trial relates to.

Infections

As listed by the trial registrant

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

Medical patients in the emergency department Older adults (65 years and older)

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

  • Department of Medicine

    RECRUITING

    Herlev, Copenhagen, 2730, Denmark

  • Department of Medicine, Copenhagen University Hospital - Herlev and Gentofte

    NOT_YET_RECRUITING

    Herlev, 2730, Denmark

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