** Shares of Bellerophon Therapeutics BLPH.O surge more
than sixfold to $21 premarket - set for their biggest intraday
jump
** Stock is top gainer across U.S. exchanges
** FDA allows emergency use of co's nitric oxide delivery
system, INOpulse, for COVID-19 treatment
** Early studies have shown that nitric oxide inhibits the
replication of severe acute respiratory syndrome-related
coronavirus and improves survival for infected cells
** INOpulse is designed to treat patients in the outpatient
setting, which may be critical in helping combat further spread
of the virus and alleviate the mounting impact on hospitals - co
** Drugmaker Mallinckrodt MNK.N said last week it was
evaluating the role of inhaled nitric oxide on treating lung
complications related to COVID-19 urn:newsml:reuters.com:*:nL4N2B53QV
** MNK up 18% at $1.48
** Up to Thursday's close, BLPH down 35% YTD
(Reporting by Saumya Sibi Joseph in Bengaluru)
((saumya.joseph@thomsonreuters.com))