Data from Pharmawand - Curated by Marshall Pearce - Date added 20 April 2017

Taking Epidiolex (cannabidiol), from GW Pharma, may cut seizures in half for some children and adults with Lennox-Gastaut syndrome (LGS), a severe form of epilepsy, according to information from a large scale controlled clinical study. For the randomized, double-blind, placebo-controlled study, researchers followed 225 people with an average age of 16 for 14 weeks. The participants had an average of 85 drop seizures per month, had already tried an average of six epilepsy drugs that did not work for them and were taking an average of three epilepsy drugs during the study. Participants were given either a higher dose of 20 mg/kg daily cannabidiol, a lower dose of 10 mg/kg daily cannabidiol or placebo as an add-on to their current medications for 14 weeks.

Those taking the higher dose had a 42 percent reduction in drop seizures overall, and for 40 percent, their seizures were reduced by half or more. Those taking the lower dose had a 37 percent reduction in drop seizures overall, and for 36 percent, seizures were reduced by half or more. Those taking the placebo had a 17 percent reduction in drop seizures, and for 15 percent, seizures were reduced by half or more. There were side effects for 94 percent of those taking the higher dose, 84 percent of those taking the lower dose and 72 percent of those taking placebo, but most side effects were reported as mild to moderate. The two most common were decreased appetite and sleepiness. Data will be presented at the American Academy of Neurology's 69th Annual Meeting.

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