NCT05234333

Brief Summary

COVID-19 vaccines induced malaise have recently been reported in the literature. Our study aims to identify risk factors associated with the onset of COVID-19 vaccines induced malaise and to assess if certain COVID-19 vaccines could be more prone to cause malaise compared to influenza vaccines. To do so we performed a disproportionality analysis adjusted on age class, sex, region and type of reporter in VigiBase®, the WHO pharmacovigilance database, restricted to data from 01/01/2021 to 26/01/2022 to assess the association between all COVID-19 vaccines on the market and malaise. Demographic data were also analyzed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
1,534,706

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2021

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2021

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 26, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 26, 2022

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

February 9, 2022

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 10, 2022

Completed
Last Updated

May 5, 2022

Status Verified

April 1, 2022

Enrollment Period

1.1 years

First QC Date

February 9, 2022

Last Update Submit

April 29, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • disproportionality analysis in VigiBase® : search for an over-reporting of malaise with COVID-19 vaccines compared to influenza vaccines

    case/no case study

    from the 01/01/2021 to the 26/01/2022

Study Arms (2)

Patients presenting a malaise after the vaccination by any vaccine

Drug: SARS-CoV-2 vaccine

Patients presenting any other adverse event after the vaccination by any vaccine

Drug: SARS-CoV-2 vaccine

Interventions

SARS-CoV-2 vaccination

Patients presenting a malaise after the vaccination by any vaccinePatients presenting any other adverse event after the vaccination by any vaccine

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All patients

You may qualify if:

  • all adverse events reported in the WHO pharmacovigilance database

You may not qualify if:

  • none

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Caen University Hospital, Department of Pharmacology

Caen, Normandy, 14033, France

Location

MeSH Terms

Interventions

COVID-19 Vaccines

Intervention Hierarchy (Ancestors)

Viral VaccinesVaccinesBiological ProductsComplex Mixtures

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 9, 2022

First Posted

February 10, 2022

Study Start

January 1, 2021

Primary Completion

January 26, 2022

Study Completion

January 26, 2022

Last Updated

May 5, 2022

Record last verified: 2022-04

Locations