** Shares of drug developer 89bio Inc ETNB.O fall 32% to
$10.55 premarket
** Rival Akero Therapeutics AKRO.O says a mid-stage trial
for its drug to treat a type of fatty liver disease showed
improvement in patients, but the results were not statistically
significant
** AKRO is testing its lead drug candidate, efruxifermin, in
some patients with non-alcoholic steatohepatitis (NASH)
** ETNB is also developing its lead drug, pegozafermin, in
NASH patients and was granted U.S. FDA's "breakthrough therapy"
status last month
** However, shares of another rival drugmaker Madrigal
Pharmaceuticals MDGL.O rise 4.3% to $146 premarket as co leads
race for NASH treatments after trial success
** MDGL's drug, resmetirom, has been seen as a promising
candidate for the treatment of NASH since its late-stage study
in December helped reduce liver scarring or fibrosis in patients
** Up to last close, ETNB up ~22%, MDGL down ~52% YTD
(Reporting by Mariam Sunny in Bengaluru)
((Mariam.ESunny@thomsonreuters.com;))