** Verona Pharma's U.S.-listed shares VRNA.O soar 19 pct
to an all-time high of $19.03 after the of British company's
lung disease drug succeeds in a mid-stage study
** VRNA is the 3rd biggest pct gainer across all U.S.
exchanges and set for its best day in over 6 months
** Co's drug RPL554, to treat chronic obstructive pulmonary
disease (COPD) met the main goal in the study and was
well-tolerated at all dose levels urn:newsml:reuters.com:*:nGNXb9yDz3
** More than 32k shares traded, ~4x their 30-DMA
** Including session's gains, stock has risen 67 pct YTD
(Reporting by Amy Caren Daniel in Bengaluru)
((Reuters Messaging:
Amy.CarenDaniel.thomsonreuters.com@reuters.net))