Deciphering a Specific Signature of the Immunosenescence Induced in COVID-19+ Patients Versus Rheumatoid Arthritis Patients

NCT ID: NCT04880720

Last Updated: 2023-01-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

43 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-07-19

Study Completion Date

2022-11-16

Brief Summary

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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.

Detailed Description

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Conditions

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SARS-Cov-2 Infection Rheumatoid Arthritis

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

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COVID-19 Patients

Blood sampling

Intervention Type OTHER

Blood sampling - 10mL

Rheumatoid Arthritis Patients

Blood sampling

Intervention Type OTHER

Blood sampling - 10mL

Healthy Comparator

Blood sampling

Intervention Type OTHER

Blood sampling - 10mL

Interventions

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Blood sampling

Blood sampling - 10mL

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* 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

Exclusion Criteria

* Subjects under 18 years of age
* HIV positive patients
* Diabetic patients
* Morbidly obese patients (BMI \> 40kg/m2)
* Use of senolytic drugs in the week prior to inclusion (azithromycin, metformin, cyclosporine, JAK inhibitors)
* Use of steroids in doses greater than 10 mg/day in the week prior to inclusion
* 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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University Hospital, Montpellier

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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CHU Montpellier

Montpellier, , France

Site Status

Countries

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France

References

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Other Identifiers

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RECHMPL20_0454

Identifier Type: -

Identifier Source: org_study_id

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