(Updates)
** Shares of drugmaker Amylyx Pharmaceuticals AMLX.O fall
as much as 85.8% to an all-time low of $2.70
** Stock set for its biggest one day pct. fall since debut
in 2022, if losses hold
** Company says its approved ALS drug, known as Relyvrio in
the U.S. and Albrioza in Canada, failed to meet the main goal of
a late-stage confirmatory trial
** AMLX says it will share plans for the drug, which may
include voluntarily withdrawing it from the market
** Stock down 91.4% in the last 12 months
(Reporting by Puyaan Singh)
((Puyaan.Singh@thomsonreuters.com;))