Monitoring of the Post-vaccination Immune Response to COVID-19 Among Hospital Staff (COVIDIM)
21 maja 2021 zaktualizowane przez: University Hospital, Clermont-Ferrand
Vaccination against COVID-19 is a major public health issue to control the epidemic and reduce the number of severe infections and deaths. Three vaccines currently received use authorization in France: two mRNA vaccines and one recombinant viral vector vaccine. Immunogenicity data demonstrate that they induce the development of neutralizing antibodies and IgG directed against the viral S1 protein and the receptor binding domain (RBD). However, there are currently no data on the persistence over time of the humoral response induced by vaccination, and data are still incomplete on cellular immunogenicity. No immune correlate of protection has been established for COVID-19.
In addition, these data come from assays carried out with current vaccines developed against a lineage of SARS-CoV-2 known as wild type (without genetic mutations).
The main objective of this study is to monitor in hospital staff the temporal evolution of humoral immunity induced by anti-COVID-19 vaccines by using enzyme-linked immunosorbent assays (ELISA), at 3, 6, 12 and 24 months after the last injection of vaccine.
Przegląd badań
Status
Rekrutacyjny
Interwencja / Leczenie
Szczegółowy opis
- All medical, para-medical, medico-technical and administrative staff of the Clermont-Ferrand university hospital will be informed of the protocol through intra-hospital communication. The inclusion visit will be scheduled within 3 months +/- 14 days after the last injection of the vaccine. For volunteers who have not received their first injection, they will be offered to participate in the sub-study including an additional visit on the day of vaccination. They will be free to accept or refuse.
- As recruitment is consecutive, an anonymous list of potentially eligible subjects (with demographic data: age, sex; nature of the vaccine received) will be kept, in order to verify afterwards if the sample is representative.
The study includes:
- Five visits over 21 months, 6 over 24 months for the subgroup included on the day of vaccination
- An interview with an investigator during the first visit, to collect the following data: hospital function, age, sex, weight, height, possible comorbidities exposing to a serious COVID-19 infection, possible COVID-19 infection prior to vaccination, date of vaccination and type of vaccine
- A self-questionnaire to update clinical data if necessary during the following visits
A blood test at each visit, i.e. 2 tubes of 5 mL (antibody assays) and 4 tubes of 1 mL (cellular immunity assay).
Blood samples will be stored at -80°C, before destruction at the end of the study.
- In the case of suspecting symptoms of COVID-19 during follow-up, molecular testing of SARS-CoV-2 infection will be offered and performed from nasopharyngeal swab or saliva sample.
Typ studiów
Interwencyjne
Zapisy (Oczekiwany)
300
Faza
- Nie dotyczy
Kontakty i lokalizacje
Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.
Lokalizacje studiów
-
-
Aura
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Clermont-Ferrand, Aura, Francja, 63000
- Rekrutacyjny
- Clermont-Ferrand University Hospital
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Główny śledczy:
- Cécile Henquell
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Kryteria uczestnictwa
Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.
Kryteria kwalifikacji
Wiek uprawniający do nauki
18 lat do 65 lat (Dorosły, Starszy dorosły)
Akceptuje zdrowych ochotników
Tak
Płeć kwalifikująca się do nauki
Wszystko
Opis
Inclusion Criteria:
- Adult person, man or woman, staff of the Clermont-Ferrand University Hospital (medical or paramedical, medico-technical or administrative caregiver), having received the second dose of vaccine (or the single dose if the single-dose vaccination schedule) against COVID- 19 3 months +/- 15 days before the inclusion visit, as part of the national vaccination campaign, regardless of the type of vaccine administered.
- For the subgroup included before vaccination (study of the pre-vaccination cellular response): Adult person, man or woman, staff of Clermont-Ferrand University Hospital (medical or paramedical, medico-technical or administrative caregiver), receiving the 1st injection on the same day or in the 7 days before the inclusion visit, regardless of the type of vaccine administered
- Commitment to respect the schedule of visits provided for in the research protocol
- Able to give informed consent to participate in research
- Affiliation to a social security scheme
Exclusion Criteria:
- Pregnancy or breastfeeding in progress at inclusion, or planned during follow-up
- Person under guardianship, guardianship or legal protection
- Whether the vaccine received was experimental or not authorized
- Refusal of participation
Plan studiów
Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Zapobieganie
- Przydział: Nie dotyczy
- Model interwencyjny: Zadanie dla jednej grupy
- Maskowanie: Brak (otwarta etykieta)
Broń i interwencje
Grupa uczestników / Arm |
Interwencja / Leczenie |
|---|---|
|
Inny: Monitoring of the immune response
Immune response controlled with blood sample at 3, 6, 12, 18 and 24 months
|
Blood sample at 3,6,12,18 and 24 months in order to assess the blood level of anti-S1 / RBD anticoprs
|
Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
the blood level of anti-S1 / RBD antibodies
Ramy czasowe: 3 months
|
temporal evolution of humoral immunity induced by the anti-COVID-19 vaccine, at 3, 6, 12 and 24 months after the second injection (or the single injection if single dose vaccination schedule), using two quantitative enzyme-linked immunosorbent assays (ELISA) targeting anti-S1 and anti-RBD antibodies.
|
3 months
|
|
the blood level of anti-S1 / RBD antibodies
Ramy czasowe: 6 months
|
temporal evolution of humoral immunity induced by the anti-COVID-19 vaccine, at 3, 6, 12 and 24 months after the second injection (or the single injection if single dose vaccination schedule), using two quantitative enzyme-linked immunosorbent assays (ELISA) targeting anti-S1 and anti-RBD antibodies.
|
6 months
|
|
the blood level of anti-S1 / RBD antibodies
Ramy czasowe: 12 months
|
temporal evolution of humoral immunity induced by the anti-COVID-19 vaccine, at 3, 6, 12 and 24 months after the second injection (or the single injection if single dose vaccination schedule), using two quantitative enzyme-linked immunosorbent assays (ELISA) targeting anti-S1 and anti-RBD antibodies.
|
12 months
|
|
the blood level of anti-S1 / RBD antibodies
Ramy czasowe: 24 months
|
temporal evolution of humoral immunity induced by the anti-COVID-19 vaccine, at 3, 6, 12 and 24 months after the second injection (or the single injection if single dose vaccination schedule), using two quantitative enzyme-linked immunosorbent assays (ELISA) targeting anti-S1 and anti-RBD antibodies.
|
24 months
|
Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
relationship between the level of antibodies detected by serological tests (ELISA) and the antibodies titrated using an in vitro neutralization test
Ramy czasowe: 3 months, 6 months, 12 months, 18 months, 24 months
|
Comparison of the humoral response evaluated by serological tests with that analysed by neutralisation in vitro, on pairs of samples chosen to cover the variability of the response induced by vaccination between M3 and M24.
|
3 months, 6 months, 12 months, 18 months, 24 months
|
|
anti-S lymphocyte response induced by the anti-COVID-19 vaccine
Ramy czasowe: 3 months, 6 months, 12 months, 18 months, 24 months
|
Cellular immune response induced by the anti-COVID-19 vaccine evaluated by the anti-S lymphocyte response reflected by the determination of IFN-γ at the 3rd, 6th, 12th, 18th and 24th months after the second injection of vaccine (or the single injection if scheme single dose vaccine).
|
3 months, 6 months, 12 months, 18 months, 24 months
|
|
effect of age on immune response
Ramy czasowe: 3 months, 6 months, 12 months, 18 months, 24 months
|
Study the effect of age on the various immune parameters studied, in general and in their temporal course
|
3 months, 6 months, 12 months, 18 months, 24 months
|
|
Intensity of immune response according to different comorbidities
Ramy czasowe: 3 months, 6 months, 12 months, 18 months, 24 months
|
Study the effect of comorbidities on the various immune parameters studied, in general and in their temporal course
|
3 months, 6 months, 12 months, 18 months, 24 months
|
|
Intensity of immune response according to a previous COVID-19 infection or not
Ramy czasowe: 3 months, 6 months, 12 months, 18 months, 24 months
|
Study the effect of a previous COVID-19 infection on the various immune parameters studied, in general and in their temporal course
|
3 months, 6 months, 12 months, 18 months, 24 months
|
|
Intensity of immune response according to the type of vaccine administered
Ramy czasowe: 3 months, 6 months, 12 months, 18 months, 24 months
|
Study the effect of the type of vaccine administered on the various immune parameters studied, in general and in their temporal course
|
3 months, 6 months, 12 months, 18 months, 24 months
|
|
the cellular immune response directed against the Spike peptides of T lymphocytes before vaccination, between D-7 and the day of the 1st injection of vaccine
Ramy czasowe: Day 1
|
Pre-vaccine anti-S cellular immune response reflected by the IFN-γ assay, for a subgroup of 50 volunteers then benefiting from the same follow-up until the 24th month
|
Day 1
|
|
genomic characteristics of the strain of SARS-CoV-2 in case of proven COVID-19 infection during follow-up
Ramy czasowe: up to 24 months
|
Clinical description of subjects presenting with COVID-19 infection during follow-up, and genomic characteristics of their strain of SARS-CoV-2 by whole genome sequencing (next-generation sequencing).
|
up to 24 months
|
Współpracownicy i badacze
Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.
Publikacje i pomocne linki
Osoba odpowiedzialna za wprowadzenie informacji o badaniu dobrowolnie udostępnia te publikacje. Mogą one dotyczyć wszystkiego, co jest związane z badaniem.
Daty zapisu na studia
Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.
Główne daty studiów
Rozpoczęcie studiów (Rzeczywisty)
19 maja 2021
Zakończenie podstawowe (Oczekiwany)
1 listopada 2023
Ukończenie studiów (Oczekiwany)
1 maja 2024
Daty rejestracji na studia
Pierwszy przesłany
18 maja 2021
Pierwszy przesłany, który spełnia kryteria kontroli jakości
19 maja 2021
Pierwszy wysłany (Rzeczywisty)
21 maja 2021
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
24 maja 2021
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
21 maja 2021
Ostatnia weryfikacja
1 maja 2021
Więcej informacji
Terminy związane z tym badaniem
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
- RBHP 2021 HENQUELL
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Nie
Bada produkt urządzenia regulowany przez amerykańską FDA
Nie
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