Deciphering a Specific Signature of the Immunosenescence Induced in COVID-19+ Patients Versus Rheumatoid Arthritis Patients
SENO-COVID
1 other identifier
observational
43
1 country
1
Brief Summary
Immune aging or immunosenescence is characterized by a loss of T cell clonal diversity and a contraction of naïve T cells with proliferative capacity associated with the functional impairment of many others immune cells as well as a chronic low degree of inflammation. A restrictive T cell repertoire is likely more prone to antigen-mediated exhaustion observed during chronic viral infections. Notably, lymphopenia is the most consistent laboratory abnormality in COVID-19 infected patients and both lung-resident and circulating T cells potently up-regulate markers of T cell exhaustion. It is not clear today if the association of COVID-19 disease severity with age is mainly related with the immunosenescence of infected patients. Interestingly, T cell exhaustion and premature immunosenescence have also been observed in chronic inflammatory diseases such as rheumatoid arthritis (RA). To better understand the immunological mechanisms involved in SARS-Cov-2 pathophysiology, the investigators propose to compare the immunosenescence patterns observed during RA, aging and SARS-Cov-2 infected patients in order to design improved therapeutic interventions.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jul 2021
1 active site
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 10, 2021
CompletedFirst Posted
Study publicly available on registry
May 11, 2021
CompletedStudy Start
First participant enrolled
July 19, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 16, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
November 16, 2022
CompletedJanuary 5, 2023
January 1, 2023
10 months
May 10, 2021
January 4, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
Results of phenotypic immunosenescence analyses of COVID-19 patients targeting 5 different immune populations (neutrophils, T lymphocytes, NK lymphocytes, B lymphocytes and monocytes).
At inclusion visit
Secondary Outcomes (3)
Comparison of previous results with the results of senescence immunophenotyping in peripheral blood of a reference population with an inflammatory disease (active RA)
At inclusion visit
Comparison of previous results with the results of senescence immunophenotyping in peripheral blood of a reference population of healthy controls.
At inclusion visit
Identification of a specific gene expression of immunosenescence induced in COVID-19 patients, using transcriptomic analysis in the different immune subpopulations previously identified and specific to COVID-19 patients.
At inclusion visit
Study Arms (3)
COVID-19 Patients
Rheumatoid Arthritis Patients
Healthy Comparator
Interventions
Blood sampling - 10mL
Eligibility Criteria
* COVID-19 patients are recruited through the Covidothèque project and the UANDES center (Chile) * RA patients and healthy subjects are recruited through 3 rheumatology reference centers (Montpellier, Paris Saint-Antoine and Saint-Etienne)
You may qualify if:
- Patients with rheumatoid arthritis (RA) meeting the 2010 ACR/EULAR diagnostic criteria
- Patients in inflammatory flare of RA (DAS28 \> 3.2)
- Patients who have been off biological disease-modifying antirheumatic drugs (bDMARDs) or targeted synthetic antirheumatic drugs (tsDMARDs) for RA for at least 2 weeks (except for rituximab, where a delay of at least 12 months is required)
- Conventional synthetic DMARDs (Methotrexate, Hydroxychloroquine, Leflunomide, Sulfasalazine) are allowed
- Beneficiary of a social security system
- Informed consent
- Absence of chronic diseases and current infection
- Beneficiary of a social security system
- Informed consent
- Patients with ongoing SARS-Cov-2 infection (PCR+)
- Patients hospitalized at D7-D14 of symptoms onset
- Patients with two or more SARS-Cov-2 symptoms (including fever, cough, dyspnea, sore throat, chest pain, anosmia, diarrhea)
- Membership in or beneficiary of a social security scheme
- Collection of free and informed consent
You may not qualify if:
- Subjects under 18 years of age
- HIV positive patients
- Diabetic patients
- Morbidly obese patients (BMI \> 40kg/m2)
- Subjects unable to give consent
- Pregnant, breastfeeding, or non-menopausal women not taking effective contraception
- Vulnerable subjects protected by law
- Subjects under guardianship or curatorship
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CHU Montpellier
Montpellier, 34080, France
Related Publications (25)
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MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 10, 2021
First Posted
May 11, 2021
Study Start
July 19, 2021
Primary Completion
May 16, 2022
Study Completion
November 16, 2022
Last Updated
January 5, 2023
Record last verified: 2023-01