** Drug developer's shares AMPE.A fall 33.9% to 22 cents
premarket, the top percentage loser across U.S. exchanges
** Stock set for a record low if losses hold in regular
trading
** Co's CEO says the best path forward for the company's
drug to treat pain due to osteoarthritis in the knee is likely
conducting a new late-stage trial urn:newsml:reuters.com:*:nPn6P7nxRa
** Says U.S. FDA did not agree with co's proposal to
consider an earlier trial of the drug, Ampion, as basis for
approval
** Up to Wednesday's close, stock had fallen ~40% YTD
(Reporting by Manas Mishra)
((Manas.Mishra@thomsonreuters.com;
www.twitter.com/Manaswrites15))