** Shares of drugmaker Vertex Pharmaceuticals VRTX.O fall 14.49% to $403.85 premarket
** Co said on Monday it will stop developing its next-generation pain drug VX-993 as a solo treatment in acute pain, after it failed in a mid-stage trial
** VX-993 did not show statistically significant improvement in pain reduction compared to placebo
** The trial studied three different doses of VX-993 administered orally in 367 patients with acute pain following bunionectomy, a surgery to correct deformed bones of the big toe and foot
** Adds its will not start a late-stage trial studying its recently approved non-opioid painkiller Journavx in patients with a condition called lumbosacral radiculopathy, caused by a pinched nerve in the spine
** Up to last close, stock up 17.28% YTD
(Reporting by Sriparna Roy in Bengaluru)
((Sriparna.Roy@thomsonreuters.com;))