Longitudinal, comparative, controlled, observational multicenter study based on a cohort of 1500 SARS-CoV-2 seronegative patients with CIRs from the COVID-RIC1 cohort: 750 accepting vaccination and 750 refusing vaccination matched on age (+/-10 years), gender, rheumatism and recruiting center. Schedule: 4 visits over a 12-month period.~An observational routine care study was initiated in 15 French hospitals to assess the SARS-CoV-2 seroprevalence in France in a population with CIRs. The project plans to screen 5000 CIRs patients. The COVID-RIC3 study will thus be proposed to these pre-screened subjects according to their agreement or refusal to be vaccinated against COVID-19 based on a question asked at the time of their inclusion in COVID-RIC1.~The efficacy and safety of the SARS-CoV2 vaccines as well as the vaccine-induced humoral immune responses and their maintenance over time in immunosuppressed patients with CIRs are essential to guide vaccine recommendations in these specific immunocompromised populations in terms of boost or booster.
To date, studies on SARS-CoV2and vaccines have been mostly from the general population not exposed to immunosuppressants. The efficacy and safety of COVID-19 vaccines need to be evaluated in these populations.