BUZZ-GW Pharmaceuticals: Positive results from late-stage trial
** Drug developer GW Pharmaceuticals (LSE: GWP.L - news) ' shares up 22.8 pct, best day in 3 mths and at 9 mth highs, after saying a late-stage trial of its epilepsy drug met its main goal
** Co says its experimental drug Epidiolex reduced the occurence of drop-seizures in patients with Lennox-Gastault syndrome
** Shares (Berlin: DI6.BE - news) among top gainers on London's AIM exchange
** Co's U.S (Other OTC: UBGXF - news) .-listed shares up 16 pct premarket, second-largest Nasdaq (NasdaqGS: NDAQ - news) -listed gainers (venkateshasoumithri.mamidipudi.thomsonreuters.com@reuters.net)