** Shares of drug developer Seres Therapeutics MCRB.O rise
14.1% to 93 cents premarket
** Says the U.S. FDA has granted "Breakthrough Therapy"
designation to its experimental treatment, SER-155
** The treatment helps reduce bloodstream infections in
adults undergoing allogeneic hematopoietic stem cell transplant
to treat various types of blood cancers
** The transplant uses blood stem cells from a donor to
replace bone marrow that's not producing enough healthy blood
cells
** SER-155 was well-tolerated with no treatment-related
serious adverse events in an early-stage study - MCRB
** The FDA's tag is meant to speed up development and review
of drugs to treat a serious condition or unmet medical need
** Co is actively seeking a partner to provide financial
resources and other capabilities to support its goal to
maximize the SER-155 program opportunity
** Up to last close, stock down 41.2% YTD
(Reporting by Sneha S K)
((Sneha.SK@thomsonreuters.com;))