** Shares of drug developer Axcella Therapeutics AXLA.O
sureg ~23% to $2.10 premarket
** Stock is among the biggest pct gainers across all U.S.
stocks trading before the bell
** Co reports positive mid-stage data on its experimental
drug to treat patients with a type of fatty liver disease called
Nonalcoholic Steatohepatitis (NASH) urn:newsml:reuters.com:*:nBw7Y8q3ta
** Drug shows statistical significant improvement vs placebo
in liver stiffness and scarring at week 24 in trial - AXLA
** Patients administered the drug also demonstrated
statistically significant improvements in liver cell
inflammation and liver fat - AXLA
** Up to Wednesday's close, stock lost ~17% YTD
(Reporting by Khushi Mandowara)
((Khushi.Mandowara@thomsonreuters.com;))