** Shares of cancer drug developer CRIS.O slump about 31%
to $1.68 premarket following a partial clinical hold by U.S. FDA
** Stock, down nearly 49% YTD to last close, set for its
lowest in over a year if losses hold to open
** FDA places a partial clinical hold on company's
early-to-mid-stage study of its drug candidate, emavusertib, for
patients who have relapsed or are resistant to treatment for
acute myeloid leukemia (AML) or high-risk myelodysplastic
syndrome urn:newsml:reuters.com:*:nPnbGVmDZa
** AML is a cancer affecting the blood and bone marrow,
while myelodysplastic syndrome is caused by poorly formed blood
cells
** CRIS says regulator has sought safety and other data,
including the death of an AML patient who experienced
rhabdomyolysis or muscle tissue breakdown, among other
conditions
** Rhabdomyolysis has previously been identified as a
dose-limiting toxicity of emavusertib - CRIS
** Says confident in the potential of emavusertib and
committed to working with the FDA
(Reporting by Amruta Khandekar)
((Amruta.Khandekar@thomsonreuters.com;))