** Shares of drug developer Optinose Inc OPTN.O fall 19%
to $1.19 premarket
** OPTN says FDA has extended review of its supplemental
application requesting approval of drug-device combination,
Xhance, to treat chronic sinusitis
** FDA will finalize its decision by March 16, 2024 vs
previously given date of Dec. 16 - OPTN
** Says FDA had requested additional efficacy data from one
of the two trials submitted as part of the application
** Chronic sinusitis is a condition in which cavities around
nasal passages are inflamed and swollen for at least 12 weeks,
for which there are currently no FDA-approved treatments
** Xhance is already approved in U.S. for treatment of nasal
polyps, a condition which causes swelling of the nasal lining
** Up to last close, stock down 20.5% YTD
(Reporting by Mariam Sunny in Bengaluru)
((Mariam.ESunny@thomsonreuters.com;))