Epetraborole is Active against Mycobacterium abscessus.

Benzoxaboroles are a new class of leucyl-tRNA synthetase inhibitors. We recently reported that the antitubercular 4-halogenated benzoxaboroles are active against Mycobacterium abscessus. Here, we find that the non-halogenated benzoxaborole epetraborole, a clinical candidate developed for Gram negative infections, is also active against M. abscessus in vitro and in a mouse model of infection. This expands the repertoire of advanced lead compounds for the discovery of a benzoxaborole-based candidate to treat M. abscessus lung disease.