“It is noteworthy that, of the patients who have responded to Epidiolex, a high proportion show a reduction in seizure frequency of greater than 50% and a portion of these patients were reported to be seizure-free at the end of 12 weeks of treatment,” stated CEO Justin Gover. “We believe that these signals of efficacy, together with the side effect profile observed to date, support GW’s decision to advance Epidiolex into a formal development program and we look forward to commencing a Phase 2/3 clinical trial of Epidiolex in Dravet syndrome in the second half of 2014.”