Abstract
Background: Bamlanivimab and casirivimab-imdevimab are authorized for treatment of mild to moderate coronavirus disease 2019 (COVID-19) in high-risk patients. We compared the outcomes of patients who received these therapies to identify factors associated with hospitalization and other clinical outcomes.
Methods: Adult patients who received monoclonal antibody from 19 November 2020 to 11 February 2021 were selected and divided into those who received bamlanivimab (n = 2747) and casirivimab-imdevimab (n = 849). The 28-day all-cause and COVID-19-related hospitalizations were compared between the groups.
Results: The population included 3596 patients; the median age was 62 years, and 50% were female. All had ≥1 medical comorbidity; 55% had multiple comorbidities. All-cause and COVID-19-related hospitalization rates at 28 days were 3.98% and 2.56%, respectively. After adjusting for medical comorbidities, there was no significant difference in all-cause and COVID-19-related hospitalization rates between bamlanivimab and casirivimab-imdevimab (adjusted hazard ratios [95% confidence interval], 1.4 [.9-2.2] and 1.6 [.8-2.7], respectively). Chronic kidney, respiratory and cardiovascular diseases, and immunocompromised status were associated with higher likelihood of hospitalization.
Conclusions: This observational study on the use of bamlanivimab and casirivimab-imdevimab in high-risk patients showed similarly low rates of hospitalization. The number and type of medical comorbidities are associated with hospitalizations after monoclonal antibody treatment.
Keywords: COVID-19; bamlanivimab; casirivimab; hospitalization; outcomes.
【저자키워드】 COVID-19, Hospitalization, bamlanivimab, outcomes, Casirivimab, 【초록키워드】 Treatment, coronavirus disease, therapy, monoclonal antibody, Comorbidities, Comorbidity, cardiovascular diseases, outcome, clinical outcomes, kidney, outcomes, female, Patient, Mild, age, moderate, monoclonal antibody treatment, High-risk patients, chronic, Factor, no significant difference, hazard ratio, multiple comorbidities, high-risk patient, likelihood, immunocompromised status, selected, identify, adjusted, groups, Adult patient, the median, 【제목키워드】 clinical,