F2G is a world-leading UK- and Austria-based Biotech company (F2G Ltd and F2G Biotech GmbH) focused on the discovery and development of novel therapies to treat life-threatening invasive fungal infections. F2G has discovered and developed a completely new class of antifungal agents called the orotomides. The orotomides target dihydroorotate dehydrogenase (DHODH), a key enzyme in the de novo pyrimidine biosynthesis pathway. This is a completely different mechanism from that of the currently marketed antifungal agents and gives the orotomides fungicidal activity against a broad range of rare and resistant fungal mould infections. Olorofim (formerly F901318) is F2G’s leading candidate from this class and is in a Phase 2b open-label study focussing on rare and resistant invasive fungal infections such as aspergillosis (including azole-resistant strains), scedosporiosis, and lomentosporiosis. Olorofim is being developed both as IV and oral formulations.