** U.S.-listed shares of drug developer Centessa
Pharmaceuticals CNTA.O rise 11.55% to $16.66
** Co says ORX750, which treats acute sleep deprivation,
showed statistically significant improvement in mean sleep
latency - time it takes for a person to fall asleep - at 1 mg
and 2.5 mg doses in comparison to placebo in early-stage study
** CNTA says a 2.5 mg dose of the treatment restored
normative wakefulness with mean sleep latency of 32 minutes, as
measured by the Maintenance of Wakefulness Test
** Including session's gains, stock has more than doubled
YTD
(Reporting by Kashish Tandon in Bengaluru)
((Kashish.tandon@thomsonreuters.com))