PT - JOURNAL ARTICLE AU - David Simon AU - Koray Tascilar AU - Filippo Fagni AU - Gerhard Krönke AU - Arnd Kleyer AU - Christine Meder AU - Raja Atreya AU - Moritz Leppkes AU - Andreas E Kremer AU - Andreas Ramming AU - Milena L Pachowsky AU - Florian Schuch AU - Monika Ronneberger AU - Stefan Kleinert AU - Axel J Hueber AU - Karin Manger AU - Bernhard Manger AU - Carola Berking AU - Michael Sticherling AU - Markus F Neurath AU - Georg Schett TI - SARS-CoV-2 vaccination responses in untreated, conventionally treated and anticytokine-treated patients with immune-mediated inflammatory diseases AID - 10.1136/annrheumdis-2021-220461 DP - 2021 Oct 01 TA - Annals of the Rheumatic Diseases PG - 1312--1316 VI - 80 IP - 10 4099 - http://ard.bmj.com/content/80/10/1312.short 4100 - http://ard.bmj.com/content/80/10/1312.full SO - Ann Rheum Dis2021 Oct 01; 80 AB - Objectives To better understand the factors that influence the humoral immune response to vaccination against SARS-CoV-2 in patients with immune-mediated inflammatory diseases (IMIDs).Methods Patients and controls from a large COVID-19 study, with (1) no previous history of COVID-19, (2) negative baseline anti-SARS-CoV-2 IgG test and (3) SARS-CoV-2 vaccination at least 10 days before serum collection were measured for anti-SARS-CoV-2 IgG. Demographic, disease-specific and vaccination-specific data were recorded.Results Vaccination responses from 84 patients with IMID and 182 controls were analysed. While all controls developed anti-SARS-CoV-2 IgG, five patients with IMID failed to develop a response (p=0.003). Moreover, 99.5% of controls but only 90.5% of patients with IMID developed neutralising antibody activity (p=0.0008). Overall responses were delayed and reduced in patients (mean (SD): 6.47 (3.14)) compared with controls (9.36 (1.85); p<0.001). Estimated marginal means (95% CI) adjusted for age, sex and time from first vaccination to sampling were 8.48 (8.12–8.85) for controls and 6.90 (6.45–7.35) for IMIDs. Significantly reduced vaccination responses pertained to untreated, conventionally and anticytokine treated patients with IMID.Conclusions Immune responses against the SARS-CoV-2 are delayed and reduced in patients with IMID. This effect is based on the disease itself rather than concomitant treatment.All data relevant to the study are included in the article or uploaded as online supplemental information. Data are under embargo by local authorities if not included into the manuscript.