CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 550 enrolled
Drug / intervention
Far-UVC light as an additional method of disinfection +1 moreother
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05084898
NCT05084898N/ACompleted

Do Far-UVC Light Devices Reduce the Incidence of Respiratory Viral Illness in Long-term Care Facilities?

Kenneth Rockwood·interventional·Posted Oct 20, 2021·Updated Jan 13, 2026

In Brief

A clinical study evaluating Far-UVC light as an additional method of disinfection and Placebo fluorescent light for COVID-19 Respiratory Infection and 2 related conditions. Completed, enrolled 550 participants across 3 sites.

Detailed Summary

Elderly people who have multiple health problems are at higher risk of illness from viral respiratory infections, such as influenza (the flu) and COVID-19. This is especially true for residents in long-term care because the usual methods of infection control (handwashing, mask-wearing, and distancing) are difficult to enforce due to the memory problems of many residents and the frequently shared common spaces. It can also be difficult to prevent the spread of viral infections within long-term care because many residents are unable to tell their caregivers when they are feeling ill. Also, some elderly people do not show typical symptoms of infection (like fever), instead they may suddenly become confused or weak. This study will test if a safe form of ultraviolet light (far-UVC) can be effective as an extra method of disinfection (in addition to usual manual cleaning) against airborne and surface viruses that can cause respiratory infections.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada

Timeline

N/ACompletedFinished
20222023202420252026
First PostedOct 20, 2021
Enrollment StartOct 1, 2021
Primary CompletionMay 1, 2025
TodayJul 2, 2026
Enrollment to primary: 3.6 yearsPosted 4.7 years ago

Interventions

Far-UVC light as an additional method of disinfectionother

Far-UVC light is a form of ultraviolet light with an extremely short wavelength (222 nm)

Placebo fluorescent lightother

"Inactive" fluorescent light (no additional disinfection)