** Shares of biotech firm Prothena Corp PRTA.O up ~4% at
$51.2
** PRTA and drugstore chain Walgreens Boot Alliance Inc
WBA.O collaborate for the early-stage trial of Prothena's
ongoing, experimental Alzheimer's drug, PRX-012
** Under the pact, WBA will leverage its national footprint
to match patient populations in PRX012's trial
** PRTA's drug also holds U.S. FDA's fast track designation;
the health agency's tag facilitates the development and expedite
the review of drug candidates intended to treat serious
conditions
** Topline trial data from PRTA's single and multiple
ascending dose studies expected by year end 2023
** Including session's gain, PRTA stock down ~15% YTD
(Reporting by Pratik Jain in Bengaluru)
((Pratik.Jain@thomsonreuters.com;))