** Decibel Therapeutics's DBTX.O shares rise 9.9% to $2.88
** Drug developer says European commission (EC) has granted
orphan drug designation to co's lead gene therapy to treat
hearing loss caused by genetic mutation
** Orphan drug designation is granted by the EC for
medicines developed to treat rare condition, and qualifies drugs
for financial and regulatory incentives
** DBTX's drug has already received orphan drug tag from
U.S. FDA in 2021
** Including session's gains, DBTX up ~40% YTD
(Reporting by Khushi Mandowara in Bengaluru)
((Khushi.Mandowara@thomsonreuters.com;))