Camostat is undergoing clinical trials for the treatment of COVID-19 with one with the Identifier NCT04608266 now in Phase III “A Multicenter Randomized Trial to Evaluate the Efficacy and Safety of Camostat Mesylate for the Treatment of SARS-CoV-2 Infection—COVID-19 in Ambulatory Adult Patients (CAMOVID).” Worthy of note is that because TMPRSS2 and furin are important for a variety of cellular processes in the host the risk of side effects may be heightened with the chronic use of inhibitors of these enzymes. The gene discussed is FURIN; the disease is COVID-19.