COVID-19: SARS-CoV-2 Specific Memory B and T-CD4+ Cells
MEMO-COV2
SARS-CoV-2 Specific Memory B and T- CD4+ Cells
1 other identifier
interventional
60
0 countries
N/A
Brief Summary
The current pandemic caused by the newly identified coronavirus responsible for COVID-19 is a major threat to our populations and societies. Hypothesis/Objective The acquisition of protective immunity at the level of the individual, either through vaccination or natural resolution of the infection, progressively leads at the level of the population to the reduction of the fraction of the population that can be productively infected and transmit the virus, hence, leading to the diminution of the rate of transmission, a phenomenon called herd immunity. Herd immunity was proposed as a strategy to control the infection. However, it remains difficult to model group immunity given the limited knowledge of the interaction between the host immune system with the virus, whose capacity to evolve in face of a neutralizing response is also not known. It is therefore important to acquire a better knowledge of the immunological memory that ensures the resolution of COVID-19 after SARS-CoV2 infection. Method To study single-cell B and T memory cells specific for the anti-SARS-CoV-2 response and characterize somatic mutations of immunoglobulin genes and TCR, in hospitalized and symptomatic patients and in patients cured of SARS-CoV-2.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable covid19
Started Jun 2020
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
First Submitted
Initial submission to the registry
May 19, 2020
CompletedFirst Posted
Study publicly available on registry
May 27, 2020
CompletedStudy Start
First participant enrolled
June 1, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2021
CompletedMay 27, 2020
May 1, 2020
9 months
May 19, 2020
May 25, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Immunological memory: resolution of COVID-19 after SARS-CoV2 infection.
Biological blood collection: Blood samples taken in the course of the research will be part of a biological collection To study single-cell B and T memory cells specific for the anti-SARS-CoV-2 response and characterize somatic mutations of immunoglobulin genes and TCR, in hospitalized and symptomatic patients and in patients cured of SARS-CoV-2.
5 years
Study Arms (2)
Patients hospitalized for SARS-CoV-2
ACTIVE COMPARATORPatients hospitalized for CoV-2-SARS will be sampled at inclusion (Day 0), at day 21, at 3 months and at 6 months .
Patients who have recovered from CoV-2-SARS
ACTIVE COMPARATORPatients who have recovered from CoV-2-SARS will be sampled at inclusion (Day 0), at 3 months and at 6 months .
Interventions
Patients hospitalized for CoV-2-SARS will be sampled at inclusion (Day 0), at day 21, at 3 months and at 6 months .
Patients who have recovered from CoV-2-SARS will be sampled at inclusion (Day 0), at 3 months and at 6 months .
Eligibility Criteria
You may qualify if:
- Patients who have recovered from CoV-2-SARS
- Adult patient (≥ 18 years old) with a positive SARS-CoV-2 PCR.
- Adult patient (≥ 18 years old) who has recovered from SARS-CoV-2 i.e. has been free of clinical symptoms for more than 15 days and has not been hospitalized and for less than 6 weeks.
- Patient affiliated to a social security scheme.
- Patients hospitalized for SARS-CoV-2
- Adult patient (≥ 18 years old) with a positive SARS-CoV-2 PCR.
- Adult patient (≥ 18 years old) with clinical symptoms for more than 3 days and hospitalized.
You may not qualify if:
- Refusal of the patient to participate in the study.
- Patient under guardianship / curatorship
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (2)
Sokal A, Bastard P, Chappert P, Barba-Spaeth G, Fourati S, Vanderberghe A, Lagouge-Roussey P, Meyts I, Gervais A, Bouvier-Alias M, Azzaoui I, Fernandez I, de la Selle A, Zhang Q, Bizien L, Pellier I, Linglart A, Rothenbuhler A, Marcoux E, Anxionnat R, Cheikh N, Leger J, Amador-Borrero B, Fouyssac F, Menut V, Goffard JC, Storey C, Demily C, Mallebranche C, Troya J, Pujol A, Zins M, Tiberghien P, Gray PE, McNaughton P, Sullivan A, Peake J, Levy R, Languille L, Rodiguez-Gallego C, Boisson B, Gallien S, Neven B, Michel M, Godeau B, Abel L, Rey FA, Weill JC, Reynaud CA, Tangye SG, Casanova JL, Mahevas M. Human type I IFN deficiency does not impair B cell response to SARS-CoV-2 mRNA vaccination. J Exp Med. 2023 Jan 2;220(1):e20220258. doi: 10.1084/jem.20220258. Epub 2022 Nov 7.
PMID: 36342455DERIVEDAttias P, Azzaoui I, El Karoui K, de La Selle A, Sokal A, Chappert P, Grimbert P, Fernandez I, Bouvier M, Samson C, Dahmane D, Rieu P, Nizard P, Fourati S, Sakhi H, Mahevas M; Mondor NephroCov Study Group. Immune Responses after a Third Dose of mRNA Vaccine Differ in Virus-Naive versus SARS-CoV-2- Recovered Dialysis Patients. Clin J Am Soc Nephrol. 2022 Jul;17(7):1008-1016. doi: 10.2215/CJN.00830122. Epub 2022 Jun 28.
PMID: 35764393DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 19, 2020
First Posted
May 27, 2020
Study Start
June 1, 2020
Primary Completion
March 1, 2021
Study Completion
March 1, 2021
Last Updated
May 27, 2020
Record last verified: 2020-05
Data Sharing
- IPD Sharing
- Will not share
DATAS ARE OWN BY ASSISTANCE PUBLIQUE - HOPITAUX DE PARIS, PLEASE CONTACT SPONSOR FOR FURTHER INFORMATION