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COVID-19NOSO-COVIDNCT05411562

COVID-19 Genomic Sequencing for Nosocomial Outbreak Investigations

An observational study of COVID-19 and Molecular Sequence Variation, run by Centre hospitalier de l'Université de Montréal (CHUM) at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a tertiary care hospital-based prospective molecular epidemiology study in Montreal, Canada. When nosocomial transmission was suspected by local infection control teams' investigations, SARS-CoV-2 viral genomic sequencing was performed locally for all putative outbreak cases and contemporary controls. Read more about this study

Who is it for?
Ages 18 to 100 yearsHealthy volunteers can take part
What is being tested?
SARS-CoV-2 genomic sequencing
How many people
150 participants
Where
1 siteCanada
Study dates
9 Nov 2020to 31 Dec 2023
Phase
Observational
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 18 to 100 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Patients and healthcare workers in the institution during the study period.

Who may be able to join

  • Hospitalized in the institution during the study period
  • Healthcare workers in the institution during the study period

Who cannot join

  • None

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Centre Hospitalier de l'Université de Montréal

    Montreal, Quebec

Other trials in Canada

About this study

Official title: On-Demand Point-of-Care SARS-CoV-2 Genomic Sequencing to Support Nosocomial Outbreak Investigations: A Prospective Molecular Epidemiology Study in Montreal

This is a tertiary care hospital-based prospective molecular epidemiology study in Montreal, Canada. When nosocomial transmission was suspected by local infection control teams' investigations, SARS-CoV-2 viral genomic sequencing was performed locally for all putative outbreak cases and contemporary controls. Molecular and conventional epidemiology data were confronted in real time to improve understanding of COVID-19 transmission and reinforce or adapt prevention measures.

Read the detailed description

This study will include infected healthcare workers (HCW) and patients for whom a nosocomial infection in CHUM is suspected. The CHUM laboratory is responsible for COVID-19 diagnostic testing in all eligible HCW and patients. After initial diagnosis on standard PCR testing, samples are maintained at -80. Viral RNA is extracted and next-generation sequencing of the viral genome is performed using Nanopore long read sequencing platform. Preliminary data suggest that SARS-CoV-2 has a "molecular clock" of 2 single nucleotide polymorphism (SNP) per month. The analysis and between-isolate comparaison of those SNP among epidemiologically related cases will allow to support or refute the hypothesis of person to person nosocomial transmission. All infected patients will be matched 1:1 with contemporary community cases to provide a viral genome back catalog and better contextualize molecular epidemiology analyses. Molecular clusters will be reported to infection prevention and control teams and resulting interventions will be monitored.

Being tested
SARS-CoV-2 genomic sequencing
Medical subject headings
COVID-19, Cross Infection

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SARS-CoV-2 genomic sequencingDiagnostic test

    SARS-CoV-2 viral genomic sequencing and phylogenetic analyses

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Outbreak control measures improvement

    Collaborative (infection control and molecular epidemiology teams) resolution of putative outbreaks. Transmission is either refuted or further supported by molecular analyses. Additional investigation efforts are discontinued or necessary corrective measures are implemented.

    Measured: Through study completion, an average of 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jun 2022
  2. Study start9 Nov 2020
  3. Primary completion31 Dec 2023
  4. Study completion31 Dec 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
150 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05411562
Sponsor's protocol ID
20.270
Acronym
NOSO-COVID
Status last verified
Sep 2024
First submitted
2 Jun 2022
Last updated
19 Sep 2024
Results posted
No
Individual data sharing
Yes: Viral genomic sequences from all participants are to be deposited on GenBank.

Publications

  • Benoit P, Jolicoeur G, Point F, Soucy C, Normand K, Morency-Potvin P, Gagnon S, Kaufmann DE, Tremblay C, Coutlee F, Harrigan PR, Hardy I, Smith M, Savard P, Grandjean Lapierre S. On-demand, hospital-based, severe acute respiratory coronavirus virus 2 (SARS-CoV-2) genomic epidemiology to support nosocomial outbreak investigations: A prospective molecular epidemiology study. Antimicrob Steward Healthc Epidemiol. 2023 Mar 8;3(1):e45. doi: 10.1017/ash.2023.119. eCollection 2023.

    PubMed 36960087

Questions about this trial

What is this clinical trial studying?

An observational study of COVID-19 and Molecular Sequence Variation, run by Centre hospitalier de l'Université de Montréal (CHUM) at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. 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?

Outbreak control measures improvement (time frame: Through study completion, an average of 2 years). 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 NCT05411562, which also lists 1 linked publication.

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 19 Sep 2024.

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