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NCT04760704: MONITOCOVAGING

Covid-19 Vaccine Response in Elderly Subjects

Completed Last updated 26 December 2025
What this trial tests

trial testing Specific antibody and cellular immune response after anti-SARS-CoV-2 vaccine administration in Covid19 Vaccine in 264 participants. Completed in 28 March 2023.

Timeline
18 February 2021
Primary endpoint
28 March 2023
28 March 2023

Quick facts

Lead sponsorUniversity Hospital, Lille
StatusCompleted
Study typeOBSERVATIONAL
Enrollment264
Start date18 February 2021
Primary completion28 March 2023
Estimated completion28 March 2023
Sites1 location across France

Drugs / interventions tested

Conditions studied

Sponsor

University Hospital, Lille

Who can join

40 and older, any sex, with Covid19 Vaccine. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The objective of this research is to assess the amplitude and quality of the vaccine response against SARS-CoV-2, defined here by its characteristics established at 3 months, and its persistence over time, defined here at 9 months, in subjects residing in medical establishment for dependent elderly persons, compared to immunocompetent subjects aged 40 to 65 years (control subjects for vaccination over the same period).

Publications & conference data

4 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Impaired Functional T-Cell Response to SARS-CoV-2 After Two Doses of BNT162b2 mRNA Vaccine in Older People.
    Demaret J, Corroyer-Simovic B, Alidjinou EK, Goffard A, et al · · 2021 · cited 66× · PMID 34868051 · DOI 10.3389/fimmu.2021.778679
  2. Immunogenicity of BNT162b2 vaccine booster against SARS-CoV-2 Delta and Omicron variants in nursing home residents: A prospective observational study in older adults aged from 68 to 98 years.
    Alidjinou EK, Demaret J, Corroyer-Simovic B, Labreuche J, et al · · 2022 · cited 19× · PMID 35469147 · DOI 10.1016/j.lanepe.2022.100385
  3. Evolution of Blood Innate Immune Cell Phenotypes Following SARS-CoV-2 Infection in Hospitalized Patients with COVID-19.
    Dendooven A, Esnault S, Jacob M, Trauet J, et al · · 2025 · PMID 40710346 · DOI 10.3390/cells14141093
  4. Immunogenicity of a BNT162b2 Vaccine Booster Against SARS-CoV-2 Delta and Omicron Variants in Older People
    Alidjinou EK, Demaret J, Corroyer-Simovic B, Labreuche J, et al · · 2022 · DOI 10.2139/ssrn.4037259

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