** Shares of Zentalis Pharmaceuticals ZNTL.O fall 27.4% to
$6.09 premarket
** Co says U.S. Food and Drug Administration has put a
partial clinical hold on three studies evaluating its cancer
drug azenosertib
** ZNTL is testing the drug in an early-stage study for
solid tumors and two other mid-stage trials for a type of
ovarian cancer and a form of endometrial cancer
** FDA's partial clinical hold follows two deaths in the
ovarian cancer trial from an improper response to infection
called presumed sepsis
** ZNTL said it plans to resolve the hold "as quickly as
possible"
** As of last close, ZNTL down ~45% YTD
(Reporting by Bhanvi Satija in Bengaluru)
((Bhanvi.Satija@thomsonreuters.com; Outside U.S. +91
9873062788;))