Table 2 Most frequently evaluated anti-inflammatory/immunomodulatory drugs in clinical trials for COVID-19 a. Therapy Type Mechanism No. of Interventional Clinical Trials b Tocilizumab(Actemra) Humanized monoclonal antibody IL-6 receptor blocker ~41 Ruxolitinib(Jakafi) Small molecule JAK 1 and 2 inhibitor ~15 Colchicine(Colcrys) Small molecule Inhibition of NLRP3 inflammasome and of microtubule polymerization ~15 Anakinra(Kineret) Recombinant non-glycosylated human polypeptide IL-1 receptor antagonist ~13 Methylprednisolone (DEPOMedrol) Small molecule Intracellular receptor-mediated gene expression & suppression of migration of polymorphonuclear leukocytes, among others ~13 Baricitinib(Olumiant) Small molecule JAK 1 and 2 inhibitor ~12 Sarilumab(Kevzara) Human monoclonal antibody IL-6 receptor blocker ~10 Dexamethasone(Decadron, Active Injection D) Small molecule Stimulation of glucocorticoid receptors, suppression of neutrophil migration, suppression of inflammatory mediators production, and reversal of increased capillary permeability ~10 Sirolimus(Rapamune) Small molecule mTOR pathway inhibitor ~4 Mavrilimumab Human monoclonal antibody GM-CSF receptor blocker ~4 Siltuximab(Sylvant) Chimeric monoclonal antibody Anti-IL-6 ~2 Canakinumab(Ilaris) Human monoclonal antibody Anti-IL-1β ~2 a From clinicaltrials.gov, b No. is as of July 25, 2020. Abbreviations: IL: Interleukin; JAK: Janus kinase; NLRP3: NOD-like receptor protein 3; mTOR: mammalian target of rapamycin; GM-CSF: granulocyte macrophage colony-stimulating factor.