RT Journal Article SR Electronic T1 Associations of baseline use of biologic or targeted synthetic DMARDs with COVID-19 severity in rheumatoid arthritis: Results from the COVID-19 Global Rheumatology Alliance physician registry JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 1137 OP 1146 DO 10.1136/annrheumdis-2021-220418 VO 80 IS 9 A1 Jeffrey A Sparks A1 Zachary S Wallace A1 Andrea M Seet A1 Milena A Gianfrancesco A1 Zara Izadi A1 Kimme L Hyrich A1 Anja Strangfeld A1 Laure Gossec A1 Loreto Carmona A1 Elsa F Mateus A1 Saskia Lawson-Tovey A1 Laura Trupin A1 Stephanie Rush A1 Patricia Katz A1 Gabriela Schmajuk A1 Lindsay Jacobsohn A1 Leanna Wise A1 Emily L Gilbert A1 Ali Duarte-García A1 Maria O Valenzuela-Almada A1 Guillermo J Pons-Estel A1 Carolina A Isnardi A1 Guillermo A Berbotto A1 Tiffany Y -T Hsu A1 Kristin M D’Silva A1 Naomi J Patel A1 Lianne Kearsley-Fleet A1 Martin Schäfer A1 Sandra Lúcia Euzébio Ribeiro A1 Samar Al Emadi A1 Liselotte Tidblad A1 Carlo Alberto Scirè A1 Bernd Raffeiner A1 Thierry Thomas A1 René-Marc Flipo A1 Jérôme Avouac A1 Raphaèle Seror A1 Miguel Bernardes A1 Maria Margarida Cunha A1 Rebecca Hasseli A1 Hendrik Schulze-Koops A1 Ulf Müller-Ladner A1 Christof Specker A1 Viviane Angelina de Souza A1 Licia Maria Henrique da Mota A1 Ana Paula Monteiro Gomides A1 Philippe Dieudé A1 Elena Nikiphorou A1 Vanessa L Kronzer A1 Namrata Singh A1 Manuel F Ugarte-Gil A1 Beth Wallace A1 Akpabio Akpabio A1 Ranjeny Thomas A1 Suleman Bhana A1 Wendy Costello A1 Rebecca Grainger A1 Jonathan S Hausmann A1 Jean W Liew A1 Emily Sirotich A1 Paul Sufka A1 Philip C Robinson A1 Pedro M Machado A1 Jinoos Yazdany A1 , YR 2021 UL http://ard.bmj.com/content/80/9/1137.abstract AB Objective To investigate baseline use of biologic or targeted synthetic (b/ts) disease-modifying antirheumatic drugs (DMARDs) and COVID-19 outcomes in rheumatoid arthritis (RA).Methods We analysed the COVID-19 Global Rheumatology Alliance physician registry (from 24 March 2020 to 12 April 2021). We investigated b/tsDMARD use for RA at the clinical onset of COVID-19 (baseline): abatacept (ABA), rituximab (RTX), Janus kinase inhibitors (JAKi), interleukin 6 inhibitors (IL-6i) or tumour necrosis factor inhibitors (TNFi, reference group). The ordinal COVID-19 severity outcome was (1) no hospitalisation, (2) hospitalisation without oxygen, (3) hospitalisation with oxygen/ventilation or (4) death. We used ordinal logistic regression to estimate the OR (odds of being one level higher on the ordinal outcome) for each drug class compared with TNFi, adjusting for potential baseline confounders.Results Of 2869 people with RA (mean age 56.7 years, 80.8% female) on b/tsDMARD at the onset of COVID-19, there were 237 on ABA, 364 on RTX, 317 on IL-6i, 563 on JAKi and 1388 on TNFi. Overall, 613 (21%) were hospitalised and 157 (5.5%) died. RTX (OR 4.15, 95% CI 3.16 to 5.44) and JAKi (OR 2.06, 95% CI 1.60 to 2.65) were each associated with worse COVID-19 severity compared with TNFi. There were no associations between ABA or IL6i and COVID-19 severity.Conclusions People with RA treated with RTX or JAKi had worse COVID-19 severity than those on TNFi. The strong association of RTX and JAKi use with poor COVID-19 outcomes highlights prioritisation of risk mitigation strategies for these people.Data are available upon reasonable request. Applications to access the data should be made to the C19-GRA Steering Committee.