TNF and cancer: This trial will evaluate the safety and efficacy of three repurposing drugs against COVID-2019, as follows: artesunate (a derivative of artemisinin, an antimalarial drug extracted from the herb Artemisia annua), imatinib (a small molecule tyrosine kinase inhibitor, formulated as an oral chemotherapy drug used to treat certain types of cancer), and infliximab (a TNFα inhibitor, a chimeric monoclonal antibody that recognizes human TNF alpha) [16].