RT Journal Article T1 Use of Monoclonal Antibodies in Immunocompromised Patients Hospitalized with Severe COVID-19: A Retrospective Multicenter Cohort A1 Calderón Parra, Jorge A1 Guisado Vasco, Pablo A1 Montejano Sánchez, Rocío A1 Estrada Pérez, Vicente A1 Cuevas Tascón, Guillermo A1 Aguareles Gorines, José A1 Arribas, José A1 Erro Iribarren, Marta A1 Calvo Salvador, Marina A1 Fernández Cruz, Ana A1 Ramos Martínez, Antonio A1 Muñez Rubio, Elena AB Objective: We aim to describe the safety and efficacy of sotrovimab in severe cases of COVID-19 in immunocompromised hosts. Methods: We used a retrospective multicenter cohort including immunocompromised hospitalized patients with severe COVID-19 treated with sotrovimab between October 2021 and December 2021. Results: We included 32 patients. The main immunocompromising conditions were solid organ transplantation (46.9%) and hematological malignancy (37.5%). Seven patients (21.9%) had respiratory progression: 12.5% died and 9.4% required mechanical ventilation. Patients treated within the first 14 days of their symptoms had a lower progression rate: 12.0% vs. 57.1%, p = 0.029. No adverse event was attributed to sotrovimab. Conclusions: Sotrovimab was safe and may be effective in its use for immunocompromised patients with severe COVID-19. More studies are needed to confirm these preliminary data. PB MDPI SN 2077-0383 YR 2023 FD 2023 LK https://hdl.handle.net/20.500.14352/72323 UL https://hdl.handle.net/20.500.14352/72323 LA eng NO This work was supported by the Research Institute Puerta de Hierro-Segovia de Aranda (IDIPHSA), funding number 0040200108 (2.400€). NO Research Institute Puerta de Hierro-Segovia de Aranda (IDIPHSA) DS Docta Complutense RD 30 jun 2024