NCT05774418

Brief Summary

Health workers, especially those in patient-facing roles, had a significantly increased risk of COVID-19 infection, having serious outcomes, and risking spreading the virus to patients and staff. Vaccination campaign planning suggests allocating initial supplies of BNT162b2 vaccine to health workers given the importance of early protection to safeguard the continuity of care to patients. The aim of the study is to assess the effectiveness and safety of BNT162b2 vaccine among the health workers of Fondazione Policlinico Universitario Agostino Gemelli IRCCS (FPG). The retrospective cohort study will be conducted among health staff working at the FPG. Vaccination data will collect from hospital records. The primary end points will be vaccine effectiveness and safety.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
6,649

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

December 28, 2020

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2021

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

March 13, 2023

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 17, 2023

Completed
Last Updated

March 17, 2023

Status Verified

March 1, 2023

Enrollment Period

3 months

First QC Date

March 13, 2023

Last Update Submit

March 15, 2023

Conditions

Outcome Measures

Primary Outcomes (2)

  • Vaccine Effectiveness

    BNT162b2 COVID-19 Vaccine effectiveness is interpreted as the proportionate reduction in disease attack rate among the vaccinated group

    3 months

  • Vaccinese safety

    Regarding the safety analysis of BNT162b2 COVID-19 Vaccine, the results of vaccine safety were descriptive in nature. Categorical data are presented as absolute and relative number of patients. For continuous data, mean and standard deviation (SD) or median with interquartile range (i.e., 1st quartile and 3rd quartile) was used, depending on its distribution

    3 months

Study Arms (2)

vaccinated

Healthcare workers (aged ≥18 years) working at hospital sites who could provide written informed consent and who will complete the immunization program with the administration of the second dose after approximately 21 days from the first dose at the FPG

Biological: BNT162b2 COVID-19 Vaccine

unvaccinated

unvaccinated health workers

Interventions

BNT162b2 is a vaccine for preventing coronavirus disease 2019 (COVID-19) in people from the age of 18 years. BNT162b2 contains tozinameran, a messenger RNA (mRNA) molecule with instructions for producing a protein from the original strain of SARS-CoV-2, the virus that causes COVID-19. BNT162b2 is given as two injections, usually into the muscle of the upper arm, 3 weeks apart.

vaccinated

Eligibility Criteria

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

Employees of Fondazione Policlinico Universitario Agostino Gemelli IRCCS

You may qualify if:

  • Healthcare workers (aged ≥18 years) working at hospital sites who could provide written informed consent and who completed the immunization program with the administration of the second dose after approximately 21 days from the first dose at the FPG will be included

You may not qualify if:

  • Participants were excluded from this analysis if they either will have a positive PCR test after 31 December 2020 and had clinical contraindications to the administration of the vaccine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Fondazione Policlinico Universitario "A. Gemelli" IRCCS

Roma, RM, 00168, Italy

Location

MeSH Terms

Conditions

COVID-19

Interventions

BNT162 Vaccine

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

mRNA VaccinesNucleic Acid-Based VaccinesVaccines, SyntheticRecombinant ProteinsProteinsAmino Acids, Peptides, and ProteinsVaccinesBiological ProductsComplex MixturesCOVID-19 VaccinesViral VaccinesAntigensBiological Factors

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 13, 2023

First Posted

March 17, 2023

Study Start

December 28, 2020

Primary Completion

March 31, 2021

Study Completion

March 31, 2021

Last Updated

March 17, 2023

Record last verified: 2023-03

Data Sharing

IPD Sharing
Will not share

Locations