** Shares of drug developer SELLAS Life Sciences Group Inc
SLS.O rise 7.75% to $1.53 after the bell
** Co says U.S. FDA has granted "orphan drug" designation
for SLS009, its treatment of a type of blood and bone marrow
cancer
** The drug is currently in mid-stage trials in patients
with relapsed or refractory acute myeloid leukemia
** Orphan drug status is given to drugs that treat rare
conditions, and are protected through a series of government
incentives once in market
** Stock down ~40% YTD
(Reporting by Sriparna Roy in Bengaluru)
((Sriparna.Roy@thomsonreuters.com;))