NCT04934215

Brief Summary

Since the beginning of 2020, a major pandemic due to the new emerging coronavirus (SARS-CoV-2) has been spreading around the world. Today, the hope to contain this pandemic lies in the development and use of vaccines directed against this virus. Different strategies aim to maximize the early impact of vaccination in a context where few doses are available. In early January 2021, large-scale vaccination began in France, first for populations at risk of severe COVID-19, but also for healthcare workers over 50 years of age or with an underlying pathology, and then for all voluntary healthcare workers.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
73

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jul 2021

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

First Submitted

Initial submission to the registry

June 17, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

June 22, 2021

Completed
1 month until next milestone

Study Start

First participant enrolled

July 28, 2021

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2021

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 3, 2021

Completed
Last Updated

January 21, 2022

Status Verified

December 1, 2021

Enrollment Period

1 month

First QC Date

June 17, 2021

Last Update Submit

December 30, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • To evaluate the level of serological response after the first and second vaccine doses in health care workers with and without a history of COVID-19.

    Evolution of of anti-SARS-CoV-2 antibody level at D21-28 post-first dose and at D21-28 post-second dose in healthcare workers with and without a history of COVID-19.

    Day 28

Eligibility Criteria

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

This study will be carried out on the data of health care workers referred for vaccination to the Occupational Medicine Department and having received anti-SARS-CoV-2 serology at Day 21 post injection between 01/01/2021 and 31/03/2021, i.e. approximately 100 patients in total

You may qualify if:

  • Health care workers of the Paris Saint Joseph Hospital Group whose age ≥ 18 years
  • French-speaking
  • Health care workers who have received the BNT162b2 mRNA vaccine (COMIRNATY, Pfizer/BioNTech).

You may not qualify if:

  • Health care workers under guardianship or curatorship
  • Health care workers under court protection
  • Health care workers who object to the use of their data for this research

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Groupe Hospitalier Paris Saint Joseph

Paris, Île-de-France Region, 75014, France

Location

Related Publications (3)

  • Marot S, Malet I, Leducq V, Zafilaza K, Sterlin D, Planas D, Gothland A, Jary A, Dorgham K, Bruel T; Sorbonne Universite SARS-CoV-2 Neutralizing Antibodies Study Group; Burrel S, Boutolleau D, Schwartz O, Gorochov G, Calvez V, Marcelin AG. Rapid decline of neutralizing antibodies against SARS-CoV-2 among infected healthcare workers. Nat Commun. 2021 Feb 8;12(1):844. doi: 10.1038/s41467-021-21111-9.

    PMID: 33558507BACKGROUND
  • Dan JM, Mateus J, Kato Y, Hastie KM, Yu ED, Faliti CE, Grifoni A, Ramirez SI, Haupt S, Frazier A, Nakao C, Rayaprolu V, Rawlings SA, Peters B, Krammer F, Simon V, Saphire EO, Smith DM, Weiskopf D, Sette A, Crotty S. Immunological memory to SARS-CoV-2 assessed for up to 8 months after infection. Science. 2021 Feb 5;371(6529):eabf4063. doi: 10.1126/science.abf4063. Epub 2021 Jan 6.

    PMID: 33408181BACKGROUND
  • Pean De Ponfilly G, Pilmis B, El Kaibi I, Castreau N, Laplanche S, Le Monnier A. Is the second dose of vaccination useful in previously SARS-CoV-2-infected healthcare workers? Infect Dis Now. 2021 Nov;51(8):673-675. doi: 10.1016/j.idnow.2021.07.001. Epub 2021 Jul 6.

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

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

Study Officials

  • PEAN DE PONFILLY Gauthier

    Fondation Hôpital Saint-Joseph

    PRINCIPAL INVESTIGATOR

Study Design

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

Study Record Dates

First Submitted

June 17, 2021

First Posted

June 22, 2021

Study Start

July 28, 2021

Primary Completion

August 30, 2021

Study Completion

November 3, 2021

Last Updated

January 21, 2022

Record last verified: 2021-12

Locations