van Doesum JA, Salmanton-García J, Marchesi F, Di Blasi R, Falces-Romero I, Cabirta A, Farina F, Besson C, Weinbergerová B, Van Praet J, Schönlein M, Lopez-Garcia A, Lamure S, Guidetti A, De Ramón-Sánchez C, Batinic J, Gavriilaki E, Tragiannidis A, Tisi MC, Plantefeve G, Petzer V, Ormazabal-Velez I, Marques de Almeida J, Marchetti M, Maertens JA, Machado M, Kulasekararaj AG, Hernández-Rivas JÁ, Gomes da Silva M, Fernández N, Espigado I, Drgona L, Dragonetti G, Metafuni E, Calbacho M, Blennow O, Wolf D, van Anrooij B, Nunes Rodrigues R, Nordlander A, Martín-González JA, Lievin R, Jiménez M, Grafe SK, Garcia-Sanz R, Córdoba R, Rahimli L, van Meerten T, Cornely OA, Pagano L
Blood Adv - (-) - [2023-04-14; online 2023-04-14]
Patients with previous CD19 directed chimeric antigen receptor T cell therapy (CAR T)-cell therapy have a prolonged vulnerability to viral infections. Coronavirus diseases 2019 (COVID-19) has a great impact and has previously been shown to cause high mortality in this population. Until now, real world data of the impact of vaccination and treatment on patients with COVID-19 after CD19 directed CAR T-cell therapy are lacking. Therefore, this multicenter retrospective study was conducted with data from the EPICOVIDEHA survey. Sixty-four patients were identified. The overall mortality caused by COVID-19 was 31%. Patients infected with the Omicron variant had a significantly lower risk of death due to COVID-19 compared to patients infected with previous variants (7% versus 58% (P=0.012)). Twenty-six patients were vaccinated at time of COVID-19 diagnosis. Two vaccinations showed marked but unsignificant reduction risk of COVID-19 caused mortality (33.3% versus 14.2% (P=0.379)).Also the course of disease appears milder with less frequent ICU admissions (39% versus 14% (P=0.054)) and shorter duration of hospitalization (7 versus 27.5 days (P=0.022)). Of the available treatment options, only monoclonal antibodies seemed to be effectively reducing mortality from 32% to zero (P=0.036). We conclude that survival rates of CAR T-cell recipients with COVID-19 improved over time and that the combination of prior vaccination and monoclonal antibody treatment significantly reduces their risk of death.