NCT04707820

Antiviral T Lymphocyte Immunity During Acute COVID-19 Infection

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 51 (actual)
• Sponsor: University Hospital, Rouen · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Accepted

Summary

The SARS-CoV-2 (COVID-19) infection is causing a global pandemic and a major health crisis in France. Immunity is the body's ability to defend itself against infectious agents such as viruses. The progressive acquisition by a large part of the population of immunity to defend itself against the COVID-19 virus is one of the main mechanisms by which a resolution of this pandemic is hoped for. Recovery from infection and protection from the virus is likely to depend on the development of antibodies (proteins produced by the body to neutralize infectious agents) and T-cells (a type of white blood cell in the immune system) that can stop the virus from multiplying and killing it. To date, the way and speed at which the T-lymphocytes active against the virus appear are not known. The development of biological tests to detect T-cells active against the virus in the blood of infected patients is therefore necessary. In this context, we propose you to participate in a study that will study the immune system's response against the sars-CoV-2 virus during and after COVID-19 infection.

Conditions

• Corona Virus Infection

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	ELISPOT	The evolution of the number of gamma interferon (IFN) producing T lymphocytes in response to Spike glycoprotein (Spike glycoprotein) will be assessed by enumeration in ELISPOT method at 4 measurement times: D0 (confirmation of infection by PCR), D+7, D+14 or at hospital departure (D+Departure) and D+56±14 days. The ELISPOT method consists in stimulating peripheral blood mononuclear cells (isolated by density gradient and containing a known CD3+ T lymphocyte count) over a short period of time (16 to 20 hours) with a pool of 15 amino acid peptides (overlapping on 11 amino acids) representative of the S protein.

Timeline

• Start date: 2020-04-16
• Primary completion: 2021-04-01
• Completion: 2021-04-01
• First posted: 2021-01-13
• Last updated: 2026-01-22

Locations

1 site across 1 country: France