COVID-19 Respiratory InfectionPRiVIINCT05084898
Preventing Respiratory Viral Illness Invisibly
A study testing Far-UVC light as an additional method of disinfection in people with COVID-19 Respiratory Infection and Respiratory Virus Infection, run by Kenneth Rockwood at 3 sites in Canada.
Trial 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… Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- COVID-19 Respiratory Infection, Respiratory Virus Infection, Influenza -Like Illness
- What is being tested?
- Far-UVC light as an additional method of disinfection
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 550 participants
- Where
- 3 sitesCanada
- Study dates
- 1 Oct 2021to 1 May 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Exclusion Criteria: LTC residents who do not consent to data collection
Trial locations and contacts
3 sites in 1 country.
Canada3 sites
Northwood Halifax Campus
Halifax, Nova Scotia, b3k3s5
The Cove Guest Home
Sydney, Nova Scotia, B1S 2G1
Windsor Elms Village
Windsor, Nova Scotia, b0p1l0
About this study
Official title: Do Far-UVC Light Devices Reduce the Incidence of Respiratory Viral Illness in Long-term Care Facilities?
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.
Read the detailed description
Background: Nova Scotia has the highest proportion of seniors in Canada. Investing in high quality and safe long-term care homes is considered an important healthy aging strategy both here and globally. COVID-19 has disproportionately affected the elderly population, especially those with underlying health conditions. Residents of long-term care (LTC) facilities have been particularly vulnerable during this pandemic in Canada and elsewhere. Several approaches have been mandated to mitigate the high transmissibility of the aerosolised SARS-CoV-2 coronavirus. These are guided by three key principles: minimize time of exposure, maximize distance from sources of virus and finally to shield self from virus. As demonstrated in emerging evidence, these can be effective measures provided ability for compliance and human behaviours. Following life-saving public health guidelines has proven monumentally challenging in LTC facilities, due to the high prevalence of dementia and frailty. These severe public health measures and common infection control measures have resulted in other negative consequences for LTC residents, such as an increased feeling of loneliness, depression, and mental illnesses.
A further challenge with this population is early recognition of RVI in LTC residents can be difficult due to non-specific symptoms and the possibility of atypical presentation and lack of fever in the elderly with influenza. In this population, RVI can present as sudden, unexplained deterioration in physical or mental ability or exacerbation of an underlying condition with no other known cause. Additionally, other underlying conditions could impair residents' abilities to verbalize their symptoms. This could result in delays to the implementation of control and treatment strategies.
Rational: Far-UVC is emerging as a safe form of ultraviolet light disinfectant to kill airborne viral transmissions, including SARS CoV-2 virus. Far-UVC light (207-222 nm) in low doses effectively kills pathogens without damaging exposed human tissues. Preliminary data suggests using the regulatory safe level of exposure of lower dose UVC light (far-UVC light) can inactivate >95% of aerosolized H1N1 influenza virus and 90 percent of human coronaviruses in 8 minutes and almost 100 percent in 25 minutes. Despite growing evidence on far-UVC as a safe and viable infection control strategy, there is limited research on the feasibility, acceptability and efficacy of far-UVC in LTC settings.
Main Objective: To determine whether far-UVC light causes a reduction in the incidence of influenza-like illnesses, respiratory infections, and COVID-19 infections, among residents in long term care facilities.
Methodology: This is a cluster randomized control trial designed to identify superiority of the intervention. Residents of three LTC facilities, will be cluster-randomized based on the 'neighbourhoods' they live in (social groups of 18-36) with a 1:1 allocation ratio. Randomization will be stratified by the LTC facility. Neighbourhoods will be randomly assigned to have either 222 nm far-UVC lights installed in common areas (treated) or matching placebo lights without far-UVC capabilities (control). Both groups will still receive standard disinfecting procedures and are subject to Nova Scotia's COVID prevention measures. The far-UVC and fluorescent lights will be placed in high traffic areas (e.g. dining rooms, main corridors). Residents spend approximately 3-4 hours daily in these common areas. The far-UVC lamps will be kept at a wavelength of 222 nm and exposure times that have been demonstrated to be safe for use among elderly populations. The trial period will span over 2-3 flu seasons to allow for sufficient data and sample size to describe the efficacy and sustainability of the far-UVC intervention. To be responsive to key policy and planning needs during post pandemic times, findings will be presented routinely to advisory council members and to relevant stakeholders in the province.
- Being tested
- Far-UVC light as an additional method of disinfection, Placebo fluorescent light
- Keywords
- Far-UVC, long-term care, respiratory illnesses, disinfection methods, viral infections
- Medical subject headings
- Virus Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
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)
| Study group | Role | What they receive |
|---|---|---|
| Intervention | Active comparator | Far-UVC light as an additional method of disinfection Receives: Other: Far-UVC light as an additional method of disinfection |
| Placebo | Placebo comparator | "Inactive" fluorescent light (no additional disinfection) Receives: Other: Placebo fluorescent light |
What is being measured
The primary outcome is the main question the study is designed to answer.
A diagnosis of COVID-19 or other respiratory viral infection
Diagnosis will be based on positive laboratory finding of SARS-CoV-2, influenza A, influenza B, respiratory syncytial virus, or other respiratory viral infections (as per available testing). Testing will be performed on nasal swabs collected from participants who are positive for any of the symptoms in the screening protocol.
Measured: Over 3 flu seasons, approximately 28 months
Secondary outcomes (1)
Time to recovery or death
Number of days from diagnosis of respiratory viral infection until recovery or death. Participant will be deemed "recovered" once their overall health status (vital, functional, and cognitive) has been stable for one week. This return to stable state will be determined by participant's clinical care team and is part of usual care.
Measured: From the date of diagnosis until the date of recovery or date of death, whichever comes first, assessed up to 30 days.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Oct 2021
- Study start1 Oct 2021
- Primary completion1 May 2025
- Study completion1 May 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (19)Papers the sponsor has linked to this study.
- Other trials for COVID-19 Respiratory InfectionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Residents of three LTC facilities, will be cluster-randomized based on the 'neighbourhoods' they live in (social groups of 18-36) with a 1:1 allocation ratio. Randomization will be stratified by the LTC facility.
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 550 participants (actual)
Sponsor and investigators
- Lead sponsor
- Kenneth Rockwood
- Sponsor type
- University, hospital or other
- Collaborators
- Department of Health, Nova Scotia, Research Nova Scotia, Nova Scotia Health Authority
- Responsible party
- Sponsor-investigator, Kenneth Rockwood, Nova Scotia Health Authority
- Investigators
- Kenneth Rockwood, MD, Principal investigator, Nova Scotia Health Authority
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05084898
- Sponsor's protocol ID
- 32906-UVC
- Acronym
- PRiVII
- Status last verified
- Jan 2026
- First submitted
- 26 Jan 2021
- Last updated
- 13 Jan 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Andrew M, Searle SD, McElhaney JE, McNeil SA, Clarke B, Rockwood K, Kelvin DJ. COVID-19, frailty and long-term care: Implications for policy and practice. J Infect Dev Ctries. 2020 May 31;14(5):428-432. doi: 10.3855/jidc.13003.
PubMed 32525825Austin PC. A Tutorial on Multilevel Survival Analysis: Methods, Models and Applications. Int Stat Rev. 2017 Aug;85(2):185-203. doi: 10.1111/insr.12214. Epub 2017 Mar 24.
PubMed 29307954Buonanno M, Welch D, Shuryak I, Brenner DJ. Far-UVC light (222 nm) efficiently and safely inactivates airborne human coronaviruses. Sci Rep. 2020 Jun 24;10(1):10285. doi: 10.1038/s41598-020-67211-2.
PubMed 32581288Damschroder LJ, Aron DC, Keith RE, Kirsh SR, Alexander JA, Lowery JC. Fostering implementation of health services research findings into practice: a consolidated framework for advancing implementation science. Implement Sci. 2009 Aug 7;4:50. doi: 10.1186/1748-5908-4-50.
PubMed 19664226Garner R, Tanuseputro P, Manuel DG, Sanmartin C. Transitions to long-term and residential care among older Canadians. Health Rep. 2018 May 16;29(5):13-23.
PubMed 29852053Moberg J, Kramer M. A brief history of the cluster randomised trial design. J R Soc Med. 2015 May;108(5):192-8. doi: 10.1177/0141076815582303. No abstract available.
PubMed 26022551Pallmann P, Bedding AW, Choodari-Oskooei B, Dimairo M, Flight L, Hampson LV, Holmes J, Mander AP, Odondi L, Sydes MR, Villar SS, Wason JMS, Weir CJ, Wheeler GM, Yap C, Jaki T. Adaptive designs in clinical trials: why use them, and how to run and report them. BMC Med. 2018 Feb 28;16(1):29. doi: 10.1186/s12916-018-1017-7.
PubMed 29490655Welch D, Buonanno M, Grilj V, Shuryak I, Crickmore C, Bigelow AW, Randers-Pehrson G, Johnson GW, Brenner DJ. Far-UVC light: A new tool to control the spread of airborne-mediated microbial diseases. Sci Rep. 2018 Feb 9;8(1):2752. doi: 10.1038/s41598-018-21058-w.
PubMed 29426899Kirk MA, Kelley C, Yankey N, Birken SA, Abadie B, Damschroder L. A systematic review of the use of the Consolidated Framework for Implementation Research. Implement Sci. 2016 May 17;11:72. doi: 10.1186/s13012-016-0437-z.
PubMed 27189233Liu K, Chen Y, Lin R, Han K. Clinical features of COVID-19 in elderly patients: A comparison with young and middle-aged patients. J Infect. 2020 Jun;80(6):e14-e18. doi: 10.1016/j.jinf.2020.03.005. Epub 2020 Mar 27.
PubMed 32171866Liu Y, Mao B, Liang S, Yang JW, Lu HW, Chai YH, Wang L, Zhang L, Li QH, Zhao L, He Y, Gu XL, Ji XB, Li L, Jie ZJ, Li Q, Li XY, Lu HZ, Zhang WH, Song YL, Qu JM, Xu JF; Shanghai Clinical Treatment Experts Group for COVID-19. Association between age and clinical characteristics and outcomes of COVID-19. Eur Respir J. 2020 May 27;55(5):2001112. doi: 10.1183/13993003.01112-2020. Print 2020 May.
PubMed 32312864Armitage R, Nellums LB. COVID-19 and the consequences of isolating the elderly. Lancet Public Health. 2020 May;5(5):e256. doi: 10.1016/S2468-2667(20)30061-X. Epub 2020 Mar 20. No abstract available.
PubMed 32199471Simard J, Volicer L. Loneliness and Isolation in Long-term Care and the COVID-19 Pandemic. J Am Med Dir Assoc. 2020 Jul;21(7):966-967. doi: 10.1016/j.jamda.2020.05.006. Epub 2020 May 8. No abstract available.
PubMed 32505516El Haj M, Altintas E, Chapelet G, Kapogiannis D, Gallouj K. High depression and anxiety in people with Alzheimer's disease living in retirement homes during the covid-19 crisis. Psychiatry Res. 2020 Sep;291:113294. doi: 10.1016/j.psychres.2020.113294. Epub 2020 Jul 13.
PubMed 32763552Falsey AR, Baran A, Walsh EE. Should clinical case definitions of influenza in hospitalized older adults include fever? Influenza Other Respir Viruses. 2015 Aug;9 Suppl 1(Suppl 1):23-9. doi: 10.1111/irv.12316.
PubMed 26256292
Study at a glance
From the registry record, last updated by the sponsor on 13 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Do Far-UVC Light Devices Reduce the Incidence of Respiratory Viral Illness in Long-term Care Facilities?
- ClinicalTrials.gov ID
- NCT05084898
- Acronym / sponsor ID
- PRiVII / 32906-UVC
- Keywords
- Far-UVC, long-term care, respiratory illnesses, disinfection methods, viral infections
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 550 participants (actual)
- Lead sponsor
- Kenneth RockwoodUniversity, hospital or other
- Collaborators
- Department of Health, Nova Scotia, Research Nova Scotia, Nova Scotia Health Authority
- Study start
- 1 Oct 2021 (actual)
- Primary completion
- 1 May 2025 (actual)
- Study completion
- 1 May 2025 (actual)
- First posted
- 20 Oct 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
Background: Nova Scotia has the highest proportion of seniors in Canada. Investing in high quality and safe long-term care homes is considered an important healthy aging strategy both here and globally. COVID-19 has disproportionately affected the elderly population, especially those with underlying health conditions. Residents of long-term care (LTC) facilities have been particularly vulnerable during this pandemic in Canada and elsewhere. Several approaches have been mandated to mitigate the high transmissibility of the aerosolised SARS-CoV-2 coronavirus. These are guided by three key principles: minimize time of exposure, maximize distance from sources of virus and finally to shield self from virus. As demonstrated in emerging evidence, these can be effective measures provided ability for compliance and human behaviours. Following life-saving public health guidelines has proven monumentally challenging in LTC facilities, due to the high prevalence of dementia and frailty. These severe public health measures and common infection control measures have resulted in other negative consequences for LTC residents, such as an increased feeling of loneliness, depression, and mental illnesses.
A further challenge with this population is early recognition of RVI in LTC residents can be difficult due to non-specific symptoms and the possibility of atypical presentation and lack of fever in the elderly with influenza. In this population, RVI can present as sudden, unexplained deterioration in physical or mental ability or exacerbation of an underlying condition with no other known cause. Additionally, other underlying conditions could impair residents' abilities to verbalize their symptoms. This could result in delays to the implementation of control and treatment strategies.
Rational: Far-UVC is emerging as a safe form of ultraviolet light disinfectant to kill airborne viral transmissions, including SARS CoV-2 virus. Far-UVC light (207-222 nm) in low doses effectively kills pathogens without damaging exposed human tissues. Preliminary data suggests using the regulatory safe level of exposure of lower dose UVC light (far-UVC light) can inactivate >95% of aerosolized H1N1 influenza virus and 90 percent of human coronaviruses in 8 minutes and almost 100 percent in 25 minutes. Despite growing evidence on far-UVC as a safe and viable infection control strategy, there is limited research on the feasibility, acceptability and efficacy of far-UVC in LTC settings.
Main Objective: To determine whether far-UVC light causes a reduction in the incidence of influenza-like illnesses, respiratory infections, and COVID-19 infections, among residents in long term care facilities.
Methodology: This is a cluster randomized control trial designed to identify superiority of the intervention. Residents of three LTC facilities, will be cluster-randomized based on the 'neighbourhoods' they live in (social groups of 18-36) with a 1:1 allocation ratio. Randomization will be stratified by the LTC facility. Neighbourhoods will be randomly assigned to have either 222 nm far-UVC lights installed in common areas (treated) or matching placebo lights without far-UVC capabilities (control). Both groups will still receive standard disinfecting procedures and are subject to Nova Scotia's COVID prevention measures. The far-UVC and fluorescent lights will be placed in high traffic areas (e.g. dining rooms, main corridors). Residents spend approximately 3-4 hours daily in these common areas. The far-UVC lamps will be kept at a wavelength of 222 nm and exposure times that have been demonstrated to be safe for use among elderly populations. The trial period will span over 2-3 flu seasons to allow for sufficient data and sample size to describe the efficacy and sustainability of the far-UVC intervention. To be responsive to key policy and planning needs during post pandemic times, findings will be presented routinely to advisory council members and to relevant stakeholders in the province.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
- Model description
- Residents of three LTC facilities, will be cluster-randomized based on the 'neighbourhoods' they live in (social groups of 18-36) with a 1:1 allocation ratio. Randomization will be stratified by the LTC facility.
| Arm | Type | Receives |
|---|---|---|
| Intervention | Active comparator | Other: Far-UVC light as an additional method of disinfectionFar-UVC light as an additional method of disinfection |
| Placebo | Placebo comparator | Other: Placebo fluorescent light"Inactive" fluorescent light (no additional disinfection) |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Far-UVC light as an additional method of disinfectionFar-UVC light is a form of ultraviolet light with an extremely short wavelength (222 nm) | Other | Intervention |
| Placebo fluorescent light"Inactive" fluorescent light (no additional disinfection) | Other | Placebo |
Primary outcome
A diagnosis of COVID-19 or other respiratory viral infection
Time frame: Over 3 flu seasons, approximately 28 months
Diagnosis will be based on positive laboratory finding of SARS-CoV-2, influenza A, influenza B, respiratory syncytial virus, or other respiratory viral infections (as per available testing). Testing will be performed on nasal swabs collected from participants who are positive for any of the symptoms in the screening protocol.
1 secondary outcome
Time to recovery or death
Time frame: From the date of diagnosis until the date of recovery or date of death, whichever comes first, assessed up to 30 days.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Jan 2026.
- Background: PubMed 32525825Andrew M, Searle SD, McElhaney JE, McNeil SA, Clarke B, Rockwood K, Kelvin DJ. COVID-19, frailty and long-term care: Implications for policy and practice. J Infect Dev Ctries. 2020 May 31;14(5):428-432. doi: 10.3855/jidc.13003.
- Background: PubMed 29307954Austin PC. A Tutorial on Multilevel Survival Analysis: Methods, Models and Applications. Int Stat Rev. 2017 Aug;85(2):185-203. doi: 10.1111/insr.12214. Epub 2017 Mar 24.
- Background: PubMed 32581288Buonanno M, Welch D, Shuryak I, Brenner DJ. Far-UVC light (222 nm) efficiently and safely inactivates airborne human coronaviruses. Sci Rep. 2020 Jun 24;10(1):10285. doi: 10.1038/s41598-020-67211-2.
- Background: PubMed 19664226Damschroder LJ, Aron DC, Keith RE, Kirsh SR, Alexander JA, Lowery JC. Fostering implementation of health services research findings into practice: a consolidated framework for advancing implementation science. Implement Sci. 2009 Aug 7;4:50. doi: 10.1186/1748-5908-4-50.
- Background: PubMed 29852053Garner R, Tanuseputro P, Manuel DG, Sanmartin C. Transitions to long-term and residential care among older Canadians. Health Rep. 2018 May 16;29(5):13-23.
- Background: PubMed 26022551Moberg J, Kramer M. A brief history of the cluster randomised trial design. J R Soc Med. 2015 May;108(5):192-8. doi: 10.1177/0141076815582303. No abstract available.
- Background: PubMed 29490655Pallmann P, Bedding AW, Choodari-Oskooei B, Dimairo M, Flight L, Hampson LV, Holmes J, Mander AP, Odondi L, Sydes MR, Villar SS, Wason JMS, Weir CJ, Wheeler GM, Yap C, Jaki T. Adaptive designs in clinical trials: why use them, and how to run and report them. BMC Med. 2018 Feb 28;16(1):29. doi: 10.1186/s12916-018-1017-7.
- Background: PubMed 29426899Welch D, Buonanno M, Grilj V, Shuryak I, Crickmore C, Bigelow AW, Randers-Pehrson G, Johnson GW, Brenner DJ. Far-UVC light: A new tool to control the spread of airborne-mediated microbial diseases. Sci Rep. 2018 Feb 9;8(1):2752. doi: 10.1038/s41598-018-21058-w.
- Background: PubMed 27189233Kirk MA, Kelley C, Yankey N, Birken SA, Abadie B, Damschroder L. A systematic review of the use of the Consolidated Framework for Implementation Research. Implement Sci. 2016 May 17;11:72. doi: 10.1186/s13012-016-0437-z.
- Background: PubMed 32171866Liu K, Chen Y, Lin R, Han K. Clinical features of COVID-19 in elderly patients: A comparison with young and middle-aged patients. J Infect. 2020 Jun;80(6):e14-e18. doi: 10.1016/j.jinf.2020.03.005. Epub 2020 Mar 27.
- Background: PubMed 32312864Liu Y, Mao B, Liang S, Yang JW, Lu HW, Chai YH, Wang L, Zhang L, Li QH, Zhao L, He Y, Gu XL, Ji XB, Li L, Jie ZJ, Li Q, Li XY, Lu HZ, Zhang WH, Song YL, Qu JM, Xu JF; Shanghai Clinical Treatment Experts Group for COVID-19. Association between age and clinical characteristics and outcomes of COVID-19. Eur Respir J. 2020 May 27;55(5):2001112. doi: 10.1183/13993003.01112-2020. Print 2020 May.
- Background: PubMed 32199471Armitage R, Nellums LB. COVID-19 and the consequences of isolating the elderly. Lancet Public Health. 2020 May;5(5):e256. doi: 10.1016/S2468-2667(20)30061-X. Epub 2020 Mar 20. No abstract available.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Kenneth Rockwood, MD principal investigator
Nova Scotia Health Authority
3 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Far-UVC light as an additional method of disinfection in people with COVID-19 Respiratory Infection and Respiratory Virus Infection, run by Kenneth Rockwood at 3 sites in Canada.
The full registered description is in the About this study section and the official record.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
A diagnosis of COVID-19 or other respiratory viral infection (time frame: Over 3 flu seasons, approximately 28 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05084898, which also lists 19 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jan 2026.