NCT04750356

Brief Summary

The study aims to investigate SARS-CoV-2 susceptibility, transmission and disease severity in healthcare workers and patients. Residual specimens from an existing collection of samples in viral inactivating buffer and derivatives and serum from the Crick COVID-19 Consortium Testing centre (Cohort A1) and additional biological material collected prospectively (Cohorts A2 and B) will be used for research into SARS-CoV-2 transmission, evolution and immune control. This testing centre is a partnership between UCLH and The Francis Crick Institute to provide COVID 19 RT PCR testing for healthcare workers (HCWs) and patients in London Hospitals and care homes. A third group (Cohort C) of the study will allow for collaborative work with other REC approved research studies that have used the Crick COVID-19 Consortium Testing centre and will involve the use of study samples already collected from each study to be analysed under the SARS-CoV-2 Longitudinal Study end points

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
6,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2021

Longer than P75 for all trials

Geographic Reach
1 country

3 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 27, 2021

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

January 28, 2021

Completed
14 days until next milestone

First Posted

Study publicly available on registry

February 11, 2021

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

May 23, 2022

Status Verified

May 1, 2022

Enrollment Period

3.9 years

First QC Date

January 28, 2021

Last Update Submit

May 20, 2022

Conditions

Outcome Measures

Primary Outcomes (4)

  • SARS-CoV-2 susceptibility in healthcare workers and patients

    To investigate SARS-CoV-2 susceptibility by examining the number of positive SARS-CoV-2 result per participant

    24 months

  • SARS-CoV-2 transmission in healthcare workers and patients

    To investigate SARS-CoV-2 transmission by analysis of samples sequencing data from each study centre and across study centres

    24 months

  • SARS-CoV-2 severity in healthcare workers and patients

    To investigate SARS-CoV-2 severity by review of symptom severity

    24 months

  • SARS-CoV-2 severity in healthcare workers and patients

    To investigate SARS-CoV-2 severity by review of any hospital admissions

    24 months

Study Arms (4)

Cohort A1

Healthcare workers and patients that have previously undertaken a swab or serology test to detect for the presence of SARS-CoV-2. Without the need to seek retrospective consent for the SARS CoV 2 Longitudinal Study, residual samples and derivatives from the Crick COVID -9 Consortium Testing centre and data will be used for the study

Cohort A2

3,000 SARS-CoV-2 positive and 3,000 SARS-CoV-2 negative participants (randomly selected) from cohort A1 will be prospectively consented to the study. In addition, vaccine status will also be used to stratify the participants and recruit to the study.

Cohort B

Employees at participating centres including but not limited to UCLH and The Francis Crick Institute who have their serology tested and/or are swabbed for viral (SARS-CoV-2 and seasonal viruses) detection as well as participants who are vaccinated will be prospectively consented to the study.

Cohort C

Individuals recruited to other REC approved research studies where their samples are processed by the Crick COVID 19 Consortium Testing centre will also be consented in their existing study to allow the use of leftover study samples already collected and to be collected, for use in this longitudinal study.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Individuals who have previously provided samples for SARS-CoV-2 testing at the Crick COVID 19 Consortium Testing centre

You may qualify if:

  • Individuals who have previously provided nasal throat swab samples for SARS-CoV-2 testing at the Crick COVID 19 Consortium Testing centre.
  • ≥18 years of age
  • To enrol in the SARS-CoV-2 positive cohort of the study, the participant should have a positive RT qPCR result
  • Employees based at the participating sites including who had their serology and/or swab tested (for recruitment to Cohort B)
  • Participants enrolled in other studies who had their samples processed by using the Crick COVID 19 Consortium Testing centre (for recruitment to Cohort C).
  • Written informed consent (except Cohort A1)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Ealing and Northwick Park hospital

London, United Kingdom

RECRUITING

The Francis Crick Institute

London, United Kingdom

RECRUITING

UCLH

London, United Kingdom

RECRUITING

Related Publications (1)

  • Townsley H, Gahir J, Russell TW, Greenwood D, Carr EJ, Dyke M, Adams L, Miah M, Clayton B, Smith C, Miranda M, Mears HV, Bailey C, Black JRM, Fowler AS, Crawford M, Wilkinson K, Hutchinson M, Harvey R, O'Reilly N, Kelly G, Goldstone R, Beale R, Papineni P, Corrah T, Gilson R, Caidan S, Nicod J, Gamblin S, Kassiotis G, Libri V, Williams B, Gandhi S, Kucharski AJ, Swanton C, Bauer DLV, Wall EC. COVID-19 in non-hospitalised adults caused by either SARS-CoV-2 sub-variants Omicron BA.1, BA.2, BA.4/5 or Delta associates with similar illness duration, symptom severity and viral kinetics, irrespective of vaccination history. PLoS One. 2024 Mar 21;19(3):e0294897. doi: 10.1371/journal.pone.0294897. eCollection 2024.

Biospecimen

Retention: SAMPLES WITH DNA

Blod samples and nasal and throat swabs

MeSH Terms

Conditions

Severe Acute Respiratory Syndrome

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 28, 2021

First Posted

February 11, 2021

Study Start

January 27, 2021

Primary Completion

December 31, 2024

Study Completion

December 31, 2024

Last Updated

May 23, 2022

Record last verified: 2022-05

Locations