Abstract: One aspect described herein includes a method for treating coronavirus 2019 disease (COVID-19) caused by severe respiratory syndrome coronavirus 2 (SARS-CoV-2) by administering an effective amount of a DHODH inhibitor. Another aspect described herein includes a method of treating COVD-19 by administering 4-chlorophenyl (S)-6-chloro-1-(4-methoxyphenyl)-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole-2-carboxylate (PTC299), or a pharmaceutically acceptable salt thereof.

Abstract: Compounds that inhibit viral replication or the production of viral RNA or DNA or viral protein and compositions comprising such Compounds are described. Also described are methods of inhibiting or reducing viral replication or the production of viral RNA or DNA or viral protein using such Compounds, and methods for treating viral infections, such as an RNA virus belonging to the family Coronaviridae, involving the administration of such Compounds. The Compounds may be administered as a single agent therapy or in combination with one or more additional therapies to a human in need of such treatments.

Abstract: Compounds that inhibit viral replication or the production of viral RNA or DNA or viral protein and compositions comprising such Compounds are described. Also described are methods of inhibiting or reducing viral replication or the production of viral RNA or DNA or viral protein using such Compounds, and methods for treating viral infections, such as an RNA virus belonging to the family Coronaviridae, involving the administration of such Compounds. The Compounds may be administered as a single agent therapy or in combination with one or more additional therapies to a human in need of such treatments.

Abstract: Disclosed is a pharmaceutical composition comprising a ribonucleoside analogue in accordance with general formula (I) or (II) as herein defined in admixture with a physiologically acceptable excipient diluent or carrier.