** Shares of drug developer Vistagen Therapeutics Inc
VTGN.O gain 41% to 18 cents
** Says long-term use of its nasal spray was found safe and
well-tolerated in a late-stage study of 481 patients with social
anxiety disorder
** Six patients faced serious adverse events, not related to
the treatment - VTGN
** Use of the spray, fasedienol, showed clinical meaningful
reductions in fear, anxiety - VTGN
** At three months, there was a mean reduction of 24 points
on a self-rating social anxiety scale
** Shares down 88% in last 12 months
(Reporting by Aditya Samal)
((Aditya.Samal@thomsonreuters.com;))