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Does COVID-19 vaccination reduce deaths and hospital stays in care homes?

NCT ID NCT04900376

NEW Knowledge-focused Sponsor: Gérond'if 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 21, 2026 · Last updated Sep 21, 2026

Summary

Researchers are comparing serious health events, such as death and unplanned hospital stays, between elderly residents of retirement homes and long-term care units who received a COVID-19 vaccination and those who did not. The study includes about 3,300 residents in the Ile-de-France region and follows them for at least 12 months. The goal is to see whether vaccinated residents experience fewer of these events than unvaccinated residents.

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 the study finds fewer serious health events among vaccinated residents, it could strengthen the case for vaccination in frail elderly populations and guide care home policies.
What could go wrong
This is an observational study, so it cannot prove that vaccination causes any difference in health outcomes. Unmeasured factors like underlying health or frailty could explain the results, and the findings may not apply to other regions or care settings.

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

3,309 people

The number who actually took part.

Started

Feb 2021

Finished

Dec 2022

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

Retirement Home (EHPAD) residents and Long-term Care Units (USLD) patients vaccinated or not against Coronavivus.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * Subject in Retirement Home (EHPAD) or Long-term Care Units (USLD) during the anti-Coronavivus vaccination period. * Subject not opposing the study or whose legal representative does not oppose the study. Exclusion Criteria: * Subject not affiliated to a social security scheme.

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Conditions

The condition(s) this trial relates to.

Coronavinae infectious disease COVID-19 prevention target

As listed by the trial registrant

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

Reside either in retirement home or long-term care units

Contacts and locations

Locations

  • Geriatric Department, Broca Hospital

    Paris, IIe-de-France, 75013, France