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Could a special light keep nursing home residents safer from flu and COVID?

NCT ID NCT05084898

Prevention Sponsor: Kenneth Rockwood 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether far-UVC light, a safe type of ultraviolet light, can reduce respiratory infections like flu and COVID-19 in long-term care facilities. The trial involved 550 elderly residents who are at higher risk due to age and health conditions. The light was used as an extra cleaning method alongside usual hygiene practices.

What this could mean

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

Active substance
Far-UVC light (222 nm wavelength) as an additional disinfection method
What this could lead to
If effective, far-UVC light could become a simple, safe way to reduce the spread of flu and COVID-19 in nursing homes, protecting vulnerable elderly residents.
What could go wrong
This is a completed trial, but results are not yet widely confirmed. The study was relatively small (550 participants) and only in long-term care settings, so it may not apply to other environments.

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

550 people

The number who actually took part.

Started

Oct 2021

Finished

May 2025

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

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

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.

Exclusion Criteria: LTC residents who do not consent to data collection

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Conditions

The condition(s) this trial relates to.

COVID-19 viral infectious disease viral respiratory tract infection prevention target

As listed by the trial registrant

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

COVID-19 respiratory infection Influenza -like illness Respiratory virus infection

Contacts and locations

Locations

  • Northwood Halifax Campus

    Halifax, Nova Scotia, b3k3s5, Canada

  • The Cove Guest Home

    Sydney, Nova Scotia, B1S 2G1, Canada

  • Windsor Elms Village

    Windsor, Nova Scotia, b0p1l0, Canada

More trials for these conditions

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