** Shares of Vor Bio VOR.O rise 13.9% to $4.9 before the
bell
** The drug developer says initial data from
early-to-mid-stage study of its experimental therapy to treat
patients with a type of blood cancer was well-tolerated
urn:newsml:reuters.com:*:nGNX2tP23x
** Blood count was successfully maintained in the first
patient after the transplant treatment - VOR
** Co says the study continues to enroll patients and
additional data is expected in 2023
** Up to Tuesday's close, stock down ~63% YTD
(Reporting by Khushi Mandowara)
((Khushi.Mandowara@thomsonreuters.com;))