** Arcellx Inc's shares ACLX.O fall 22.2% to $27.8 -
amongst the biggest losers across U.S. stock exchanges premarket
** U.S. FDA has placed clinical hold on mid-stage study of
Arcellx's experimental therapy to treat patients with type of a
blood cancer, the biotech firm said late on Monday
** Co said it is working with FDA to address the clinical
hold, which was placed following the recent death of a patient
** The regulator, however, has provided clearance to
continue the dosing of patients who have undergone
lymphodepletion, is a short course of chemotherapy to kill
T-cells – a part of immune system
** Co said it is working with FDA to address the clinical
hold
** As of last close, stock had risen ~16% YTD
(Reporting by Khushi Mandowara in Bengaluru)
((Khushi.Mandowara@thomsonreuters.com;))