NCT04868448

Brief Summary

This is a prospective one-year cohort study of hospital-based health workers in Georgia to evaluate the effectiveness of COVID-19 vaccine in preventing laboratory-confirmed SARS-CoV-2 infection and COVID-19 disease.

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
1,600

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Mar 2021

Geographic Reach
1 country

6 active sites

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 20, 2021

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

April 29, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

May 3, 2021

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2022

Completed
Last Updated

May 3, 2021

Status Verified

April 1, 2021

Enrollment Period

1.4 years

First QC Date

April 29, 2021

Last Update Submit

April 29, 2021

Conditions

Keywords

Vaccine effectivenessHealth workersGeorgiaCohort study

Outcome Measures

Primary Outcomes (1)

  • Covid-19 vaccine effectiveness

    any SARS-CoV-2 laboratory confirmation by RT-PCR in an asymptomatic, or symptomatic patient

    12 months

Study Arms (2)

Vaccinated participants

Participants who received 1or 2 doses of the Covid-19 vaccines

Biological: Covid-19 vaccines

Unvaccinated participants

Participants who have not received any dose of the Covid-19 vaccines

Interventions

Observation of individuals who received one or more doses of covid-19 vaccines.

Vaccinated participants

Eligibility Criteria

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

The study population will be composed of health workers in the above hospitals, eligible for vaccination, with no contraindication to receive COVID-19 vaccine. HWs include all categories of staff working in the hospitals, including clinical and non-clinical/administrative staff and staff with direct patient interaction and those without direct patient interaction. All HWs at the above hospitals who are eligible for vaccination, according to Ministry of Health guidelines, will be eligible for enrolment, regardless of their intention to receive the COVID-19 vaccine.

You may qualify if:

  • All HWs eligible to receive the COVID-19 vaccination according to the national guidelines of Ministry of Health (MoH).
  • HWs working at Batumi Republican Clinical Hospital, Vakhtang Bochorishvili Clinic, Academician N. Kipshidze Central University Clinic, Bokeria Tbilisi Referral Hospital, Caucasus Medical Centre, and Infectious Diseases and AIDS Center.
  • HWs who have already been vaccinated with a single dose of vaccine against COVID-19 as part of the early COVID-19 vaccine rollout can be included.

You may not qualify if:

  • HWs who are not eligible for COVID-19 vaccination or have a contraindication to vaccination should not participate in the study.
  • HWs who do not work at above mentioned hospitals
  • HWs under 18 years of age.
  • HWs who have already been vaccinated with two doses of vaccine against COVID-19 before enrolment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (6)

The Batumi Republican Clinical Hospital

Batumi, Adjara, Georgia

RECRUITING

The Bokeria Tbilisi Referral Hospital

Tbilisi, 0145, Georgia

RECRUITING

Academician N. Kipshidze Central University Clinic

Tbilisi, 0160, Georgia

RECRUITING

The Bochorishvili Clinic

Tbilisi, 0160, Georgia

RECRUITING

The Infectious Diseases and AIDS Center

Tbilisi, 0160, Georgia

RECRUITING

The Caucasus Medical Centre

Tbilisi, 0186, Georgia

RECRUITING

MeSH Terms

Conditions

COVID-19

Interventions

COVID-19 Vaccines

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Study Officials

  • Khatuna C Zakhashvili, MD

    National Center for Disease control and Public Health

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Khatuna C Zakhashvili, MD

CONTACT

Lia Sanodze, MD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

April 29, 2021

First Posted

May 3, 2021

Study Start

March 20, 2021

Primary Completion

August 1, 2022

Study Completion

August 1, 2022

Last Updated

May 3, 2021

Record last verified: 2021-04

Data Sharing

IPD Sharing
Will not share

Locations