** U.S. listed shares of Netherlands-based Merus NV MRUS.O
jump 18.5% to $52.2 premarket
** Co says in interim data its experimental treatment,
petosemtamab, in combination with Merck's MRK.N Keytruda
showed a 60% response rate in reducing or clearing tumors in 10
patients with head and neck cancer
** Full data expected to be disclosed on May 28
** Brokerage BofA says initial trial results suggest
compelling efficacy and raises stock's price objective to $61
from $52
** As of last close, stock had risen 60.25% compared with a
1.1% increase in the Nasdaq biotech index .NBI
(Reporting by Nikhil Sharma in Bengaluru)
((nikhil.sharma@thomsonreuters.com))