Pharma giant Glaxosmithkline plc (GSK) made "lemonade with lemons" using its pleuromutilin platform, Nabriva AG's chief medical officer (CMO), Elyse Seltzer, told BioWorld Today, but her company seems on the way to something sweeter with lefamulin, an antibiotic from the class due to report phase III LEAP1 data later this year in community-acquired bacterial pneumonia (CABP).