Safety and Outcomes With Combination Therapy With Sarilumab and Baricitinib for Severe COVID-19 Respiratory Infection...

This study aims to describe the clinical outcomes of combination therapy with sarilumab and baricitinib for severe novel Coronavirus-19 (COVID-19) infection in cancer patients. With this study, we aim to evaluate the role of expanded immunotherapy for severely ill patients with COVID-19 respiratory infections with limited options. The secondary objective is to assess the safety of combination therapy with sarilumab and baricitinib for severe COVID-19 infection.

This was a retrospective cohort study of patients admitted to Moffitt Cancer Center with COVID-19 infection between January 2020 and April 2022. Our research received a waiver to sign consent by the patients according to our institutional IRB because it was free of any risk for the patients and respected the patient's privacy. Following the Institutional IRB approval and relevant Equator guidelines, we collected information on patients with severe COVID-19 infection and received sarilumab and baricitinib. We evaluated the survival rate and safety of combination therapy. All the patient's information was de-identified to protect their information according to Health Insurance Portability and Accountability Act (HIPAA).

Four patients were included in the data analysis. Two survived, and two of them died (Table 1). All the patients that survived were previously vaccinated. Among the two patients who died, one was vaccinated, and the other was unvaccinated. All the patients tolerated the combination therapy well, and none of the patients who survived developed secondary infections or COVID-19-associated complications beyond 12 months of discharge.

Our study explores the potential safe combination use of different immune modulators targeting multiple pathways of the inflammatory cascade for severe and refractory COVID-19 respiratory infections in high-risk oncology patients. The small number of patients in our observational study was a limitation. A larger sample of patients will be needed to conclude more precisely the efficacy of the combination therapy of sarilumab and baricitinib for refractory cases of severe COVID-19 respiratory infection. Moreover, exploring other cytokine release signaling pathway targets may be the key to significantly reducing inflammation and further pulmonary fibrosis with chronic unbearable respiratory sequela.