** Shares of FibroGen FGEN.O plunge ~77% to $3.75
premarket
** Co says its experimental drug to treat a type of lung
disease failed to meet its main goal in late-stage study
** FGEN plans to discontinue a second late-stage trial on
the drug for treating idiopathic pulmonary fibrosis (IPF)
** IPF is a chronic disease, characterized by a progressive
and irreversible decline in lung function
** Up to last close, stock up marginally so far this year
(Reporting by Mariam Sunny in Bengaluru)
((Mariam.ESunny@thomsonreuters.com;))