(Updates)
** Shares of cancer drug developer Iteos Therapeutics
ITOS.O slide 23.6% to $12.76
** Stock had risen 27.3% to $21.26 in premarket trade
** Co says its lung cancer drug belrestotug, in combination
with GSK's GSK.L drug dostarlimab, showed higher percentage of
reduction or disappearance of tumor vs patients given only GSK's
drug
** However, the combination led to an increase in
immune-related events compared to dostarlimab monotherapy, ITOS
says
** Investors seem to be concerned with adverse events from
the study, but we believe they will be better managed in the
late-stage trial, says Wedbush Securities analyst David
Nierengarten
** The combo was tested in patients with an advanced kind of
lung cancer called non-small cell lung cancer
** Including session's move, stock up 16.5% YTD
(Reporting by Kashish Tandon)
((Kashish.tandon@thomsonreuters.com))