** U.S.-listed shares ASLN.O of Singapore-based drug
developer fall 23.5 pct to $2.72 premarket
** Co said late Sunday its drug varlitin did not
significantly reduce tumor size in certain gastric cancer
patients, which was the main goal of a mid-stage study
urn:newsml:reuters.com:*:nGNXLrWY9
** Study was testing the treatment in cancer patients tested
positive for HER1/HER2 protein, co said
** The treatment in combination with chemotherapy led to an
average tumor shrinkage of 22 pct in patients after 12 weeks,
compared to 12.5 pct in patients treated with chemotherapy alone
** Leerink cuts PT on stock to $3 from $7, HC Wainwright
cuts PT to $8.5 from $12 after the update
** Stock has fallen ~35 pct since its IPO in May
(Reporting by Manas Mishra in Bengaluru)
((Reuters Messaging:
manas.mishra.thomsonreuters.com@reuters.net))