** Shares of Drug developer Histogen Inc HSTO.O rise 34.5%
to $1.16; amongst biggest pct gainers across U.S. stock
exchanges premarket
** Co says it has been granted patent for its experimental
drug, CTS-2090, to treat certain inflammatory diseases
urn:newsml:reuters.com:*:nGNX3BVq3l
** Patent is expected to provide protection to drug till
2040 - HSTO
** HSTO is currently developing the drug to protect against
inflammation driven damage to the lining of gastrointestinal
tract and also weight loss in patients with ulcerative colitis
** HSTO was down ~88% last year
(Reporting by Khushi Mandowara in Bengaluru)
((Khushi.Mandowara@thomsonreuters.com;))