Guard Therapeutics today announced positive top line results from the final and highest dosage group as part of a clinical phase 1a study where single ascending doses (SAD) of the investigational drug ROSgard™ were administered to healthy subjects. ROSgard also demonstrated good pharmacokinetic properties and a favourable safety profile at this dosage level, which is higher than the one that is expected to be used in future patient studies. The next stage in the phase 1a programme is to study ROSgard in multiple ascending doses (MAD).